DESC:FIELD
The present disclosure relates to the field of measuring systems.
BACKGROUND
In industries, the dimensions of workpieces, which are machined upon by robotic tools, are needed to be read and measured accurately. Conventional system for measuring the dimensions of a workpiece linearly uses motors to grip and push the workpiece via gripper(s) on the conveyor and to drive a rack and pinion motion element that displaces a carriage along with the workpiece on a conveyor linearly, and identifies the linear dimensions of the workpiece. Conventional system also uses optical sensors, which are mounted on the carriage and are configured to pass a signal to a robot on sensing a job within its range via a sensing system. The passed signal helps the robot to read the position of the workpiece and calculate the dimensions of the workpiece. In conventional systems, a rail on which the carriage and the sensing system are disposed may be connected to the conveyor which is displaced via motors, thereby generating high amount of vibrations that causes errors in the measurement of the dimensions of the workpiece. Also in some conventional system a rail on which the carriage is disposed may be connected to the workpiece disposed on the conveyor and therefore are subjected to the vibrations generated by the motors. However, the conventional system has the following drawbacks: (i) Error in measurement due to backlash, which is caused by the rack and pinion motion element, (ii) signal delay from the sensor to the robot due to reaction time of the sensor which leads to incorrect measurement calculations, and (iii) high amount of vibrations caused due to the connection between the rack and pinion, the servo motor and the carriage. Further, the track of the rack and pinion motion element is not covered and is intermittently greased to reduce friction between gears of the rack and pinion element. This attracts foreign particles such as metal dust and the like, thereby causing interference in the movement of the carriage. Further, use of servo motors and rack and pinion arrangement to achieve high precision measurement of the dimensions is not cost-effective.
Hence there is a need for developing an alternative measuring system for reading and measuring the dimensions of workpieces, wich reduces/eliminates backlash errors in measurement calculations, reduce delay of transmission of signal from the sensor to the robot control, reduce/eliminate vibrations that the carriage is subjected to, and reduce the interference caused to the movement of the carriage by foreign particles in the path of the track on which the carriage moves.
OBJECTS
Some of the objects of the present disclosure, which at least one embodiment herein satisfies, are as follows:
It is an object of the present disclosure to eliminate one or more problems of the prior art or to at least provide a useful alternative.
An object of the present disclosure is to provide a linear measuring system that reduces backlash errors occurred during measuring the dimensions of an article.
Another object of the present disclosure is to provide a linear measuring system that performs accurately and measures the dimensions of an article with high precision.
Still another object of the present disclosure is to provide a linear measuring system that increases the life of the components involved in measuring the dimensions of an article.
Other objects and advantages of the present disclosure will be more apparent from the following description when read in conjunction with the accompanying drawing, which are not intended to limit the scope of the present disclosure.

SUMMARY
The present disclosure envisages a linear measuring system for measuring the dimensions of a workpiece placed on a conveyor belt. The system comprises a scale housing assembly placed apart and parallel to the conveyor belt, a carriage assembly, and a control unit. The scale housing assembly includes at least one track like structure, at least one rail and a magnetic strip. The at least one rail is disposed within the at least one structure. The magnetic strip is disposed on the rail. The magnetic strip has a plurality of graduations formed thereon. The carriage assembly includes a movable carriage and a magnetic reader. The movable carriage is placed on the at least one structure and is adapted to be displaced on the at least one rail. The magnetic reader is configured to read the graduations on the magnetic strip and correspondingly generate reference signals.
The control unit is also configured to detect the presence of the workpiece and generate at least one identification signal and measure dimensions of the workpiece based on the at least one identification signal and the reference signals.
The control unit includes a controller, at least one optical source, at least one optical detector, a counter. The at least one optical source is mounted on the movable carriage and is configured to emit light rays. The at least one optical detector is mounted on the movable carriage and is configured to receive the emitted light rays and generate at least one identification signal. The counter cooperates with the magnetic reader and is configured to generate count signals corresponding to the readings read by the magnetic reader.
The controller is adapted to cooperate with the counter, the magnetic reader, the at least one optical source, the at least one detector, and a motor driver. The controller is configured:
• to receive a first reference signal from the magnetic reader;
• power on the motor via the motor driver based on the first reference signal;
• activate the at least one optical source based on the first reference signal;
• store a digital value corresponding to the first reference signal in a repository;
• receive a second reference signal from the magnetic reader;
• store a digital value corresponding to the second reference signal in a repository;
• activate the motor via the motor driver to displace the movable carriage on the rail at a pre-determined speed;
• receive the count signals, sequentially, corresponding to readings read by the magnetic reader;
• receive a first identification signal and store a first digital value corresponding to a count signal received concurrently from the counter;
• instruct the motor to further displace the carriage for a pre-determined distance; and
• compare the digital value of the distance travelled by the carriage with the pre-determined distance to measure the dimensions of the workpiece.
In another embodiment, the controller is further configured to instruct the motor to displace the movable carriage in a forward and backward direction, by means of at least one roller, for at least two times to precisely detect the starting point and/or the ending point of the workpiece after receiving said at least one identification signal.
In one embodiment, the controller is further configured to send a stop signal to the motor before the movable carriage travels the predetermined distance to compensate for the movement of the movable carriage caused due to inertia.
In an embodiment, the material used for the at least one track like structure is selected from the group consisting of carbon, thermosets, thermoplastics, reinforced thermosets, and reinforced thermoplastics.
In another embodiment, the material used for the at least one roller is a rubber. In yet another embodiment, the at least one roller is spring loaded and is adapted to grip the at least one track like structure.
In still another embodiment, the scale housing assembly includes at least one adjustable arm and a plurality of support stands. The at least one adjustable arm is mounted on top of each of the support stands. In an embodiment, the at least one adjustable arm has three degrees of freedom to arrange the at least one adjustable arm in a horizontal planar configuration by means of a theodolite.
In an embodiment, the linear measuring system employs a self learning feature wherein the linear measuring system is subjected to a dynamic learning phase.
In one embodiment, the at least one track like structure is a C – section scale housing.
BRIEF DESCRIPTION OF ACCOMPANYING DRAWING
A linear measuring system of the present disclosure will now be explained in relation to the non-limiting accompanying drawing, in which:
Figure 1 illustrates an isometric view of a scale housing assembly of the linear measuring system;
Figure 2A illustrates an isometric view of a carriage assembly of the linear measuring system of Figure 1;
Figure 2B illustrates an enlarged isometric view of a control housing of the carriage assembly of Figure 2A;
Figure 2C illustrates a top view of the carriage assembly of Figure 2A; and
Figure 3 illustrates a block diagram representing a control unit of the linear measuring system of Figure 1.
LIST OF REFERENCE NUMERALS
100 – Sale housing assembly
105 – Support stand
110 – Adjustable arm
115 – Track like structure
120 – Rail
200 – Carriage assembly
202 – Movable carriage
205 – Control housing
210, 215 – Optical Source
210a, 215a – Optical detector
220 – Spring loaded roller assembly
225 – Roller
230 – Spring
235 - Fasteners
300 – Control unit
302 – Magnetic reader
304 – Controller
306 – Motor driver
308 – Motor
310 – Repository
315 – Counter
DETAILED DESCRIPTION
Conventional system for measuring the dimensions of a workpiece linearly uses motors to grip and push the workpiece via gripper(s) on the conveyor and to drive a rack and pinion motion element that displaces a carriage along with the workpiece on a conveyor linearly, and identifies linear dimensions of the workpiece. Conventional system also uses optical sensors, which are mounted on the carriage and are configured to pass a signal to a robot on sensing a job within its range via a sensing system. The passed signal helps the robot to read the position of the workpiece and calculate the dimensions of the workpiece. In conventional systems, a rail on which the carriage and the sensing system are disposed may be connected to the conveyor which is displaced via motors, thereby generating high amount of vibrations that causes errors in the measurement of the dimensions of the workpiece. Also in some conventional systems, a rail on which the carriage is disposed may be connected to the workpiece disposed on the conveyor and therefore are subjected to the vibrations generated by the motors.
The present disclosure envisages a linear measuring system that is designed to overcome the drawbacks of the conventional measuring systems. A preferred embodiment of the linear measuring system, of the present disclosure will now be described in detail with reference to the accompanying drawing. The preferred embodiment does not limit the scope and ambit of the disclosure. The description provided is purely by way of example and illustration.
Figure 1 illustrates an isometric view of a scale housing assembly of the linear measuring system. Figure 2A illustrates an isometric view of a carriage assembly of the linear measuring system of Figure 1. Figure 2B illustrates an enlarged isometric view of a control housing of the carriage assembly of Figure 2A. Figure 2C illustrates a top view of the carriage assembly of Figure 2A. Figure 3 illustrates a block diagram representing a control unit of the linear measuring system of Figure 1.
The linear measuring system for measuring the dimensions of a workpiece that is placed on a conveyor belt includes a scale housing assembly 100 and a carriage assembly 200. The scale housing assembly 100 is placed apart and parallel to the conveyor belt and includes a plurality of support stands 105, an adjustable arm 110, at least one track like structure 115, at least one rail 120, and a magnetic strip (not shown in the figures). The magnetic strip is disposed on the at least one rail 120 and has a plurality of graduations formed thereon. The carriage assembly 200 comprises a movable carriage 202 and a control housing 205. The movable carriage 202 is placed on the at least one structure 115 and is guided by the at least one rail 120 to move along the length of the scale housing assembly 100. The control housing 205 is mounted on the movable carriage 202. The control housing 205 has a magnetic reader 302 that is configured to read the graduations formed on the magnetic strip (not shown in figures) and reference signals. In an embodiment, the magnetic reader 302 generates a first reference signal and a second reference signal. In an embodiment, the movable carriage 202 is moved along the length of the scale housing assembly by means of a spring loaded roller assembly 220. The spring loaded roller assembly 220 has at least one roller 225 and a spring 230. The material used for manufacturing of the at least one roller 225 is a rubber. The at least one roller 225 of the spring loaded roller assembly 220 is adapted to grip the at least one structure 115, thereby compensating any occurrence of mismatch in the scale housing assembly 100. The rubber roller 225 based movement provides friction drive that facilitates accurate and micron level readings. The at least one spring loaded roller 225 is mounted on the carriage assembly 200 of the linear measuring system by means of fasteners, and nuts and bolts. In an embodiment, the at least one track like structure 115 is a C – section scale housing.
In one embodiment, the conveyor belt on which the work-piece is disposed is movable along the length of the conveyor belt. The movable carriage 202 of the carriage assembly 200 is independent from the conveyor belt and the workpiece is disposed on the conveyor belt, thereby providing isolation from any kind of vibrations generated during the displacement of the conveyor belt and the work-piece.
The control unit 300 includes a controller 304, at least one optical source 210, 215, at least one optical detector 210a, 215a, a counter 315, a repository 310, and a motor 308, and a motor driver 306. The control unit 300 is configured to detect the presence of the workpiece and generate at least one identification signal. The control unit 300 is further configured to measure the dimensions of the workpiece based on the at least one identification signal, a first reference signal, a second reference signal. The at least one optical source 210, 215 is mounted on the movable carriage 202 and is configured to emit light rays. In an embodiment, the control unit 300 includes two optical sources, i.e., a first optical source 210 and a second optical source 215. The at least one optical detector 210a, 215a is mounted on the movable carriage 202 and is configured to receive the emitted light rays and generate at least one identification signal. In an embodiment, the control unit 300 includes two optical detectors, i.e., a first optical detector 210a and a second optical detector 215a. The counter 315 cooperates with the magnetic reader 302 and is configured to generate count signals corresponding to the readings read by the magnetic reader 302.
In one embodiment, to measure the dimensions of the work-piece subjected to a high temperature machining environment, the second optical source 215 and the corresponding second optical detector 215a is used to assist in measuring the dimensions of the work-piece, since the first optical source 210 and the corresponding first detector 210a are placed in the vicinity of the controller 304 present inside the control housing 205, which cannot withstand high temperatures.
Figure 3 illustrates a block diagram of the control unit 300 of the linear measuring system. The controller 304 is adapted to co-operate with the counter 315, the magnetic reader 302, the at least one optical source 210, 215, the at least one detector 210a, 215a, and the motor 308. The controller 304 co-operates with the motor 308 via the motor driver 306. The controller 304 is configured to:
• receive the first reference signal from the magnetic reader 302;
• transfer power to the motor via the motor driver 306 based on the first reference signal;
• activate the at least one optical source 210, 215 based on the first reference signal;
• store a digital value corresponding to the first reference signal in the repository 310;
• receive the second reference signal from the magnetic reader 302;
• store a digital value corresponding to the second reference signal in the repository 310;
• activate the motor 308 via the motor driver 306 to displace the movable carriage 202 on the rail at a pre-determined speed;
• receive the count signals, sequentially, corresponding to readings read by the magnetic reader 302;
• receive the first identification signal and store a first digital value corresponding to a count signal received concurrently from the counter 315;
• instruct the motor 308 to further displace the movable carriage 202 for a pre-determined distance; and
• compare the digital value of the distance travelled by the movable carriage 202 with the pre-determined distance to measure the dimensions of the workpiece.
The linear measuring system of the present disclosure can be a “stand alone” measuring system. By the term “stand alone” measuring system it is meant that the linear measuring system can be completely independent of other machining, tooling, maintenance, manufacturing, processing related functions associated with the workpiece. The plurality of support stands 105 of the scale housing assembly 100 are placed parallel to each other. In one embodiment, the plurality of support stands 105 may have a telescopic stem. The scale housing assembly 100 includes one adjustable arm 110 for each of the plurality of support stands 105 and are mounted on top of the support stand 105. The adjustable arms 110 have 3 degrees of freedom (DOF) and therefore, can be adjusted manually to provide the horizontal planar configuration by the means of a theodolite (not shown in the Figure). The theodolite is a device for measuring angles precisely in the horizontal and vertical planes. In one embodiment, the adjustable arms 110 can also be automatically adjusted in a horizontal planar configuration. The support stands 105 and the adjustable arms 110 are independently levelled by the theodolite without having any interference from the conveyor belt and the work-piece.
The at least one track like structure 115 of the scale housing assembly 100 is mounted on top of the adjustable arms 110 The number of structure 115 required in the linear measuring system is determined on the basis of the dimension of the work-piece and on the machining, processing or other related functions that are to be performed on the work-piece. In an embodiment, the track like structures 115 is placed adjacent to each other. In an embodiment, each of the tracks like structure 115 is placed along the width of the structure 115. The at least one rail 120 is suitably disposed within the structure 115 and is configured to act like a bed or a machined track to guide the movable carriage 202 along the length of the structure 115. The magnetic strip is suitably placed on top of the rail 120 of the scale housing assembly 100 in such a way that an air gap is maintained between the magnetic reader 302 (shown in Figure 3) constituted within the movable carriage 202 and the magnetic strip of the linear measuring system. In one embodiment, the magnetic strip may include magnetic graduations that are read by the magnetic reader to determine the positional parameters of the movable carriage 202.
The movable carriage 202 is fitted within the scale housing assembly 100 and is configured to move along the length of the scale housing assembly 100. The first and the second optical source 210, 215 are placed at a pre-defined distance on the movable carriage 202 and are configured to generate a light ray, which is directed towards the first and the second detector 210a, 215a respectively. In one embodiment, the first and the second optical sources 210, 215 are selected from laser, photodiode, LED and the like. The first and the second optical detectors 210a, 215a are configured to detect the emitted light rays and are further configured to generate a signal depicting the presence or absence of light ray, i.e, the presence or absence of the workpiece. In one embodiment, the first optical detector 210a and the second optical detector 215a are selected from photodetector, photo-diode, photo-transistor and the like. In another embodiment of the present disclosure, the first and the second detector 210a, 215a can be replaced by a single detector strip. The control housing 205 provided within the movable carriage 202 comprises the magnetic reader 302 that is configured to read the magnetic strip and is further configured to generate a reference signal that is transmitted to the controller 304, which is present in the control housing 205 of the carriage assembly 200. In reset mode (when the system is switched on), the controller 304 receives a first reference signal from the magnetic reader 302 and is configured to enable the motor driver 306 to power on the motor 308 and also enable the first optical source 210. In reset mode, the controller 304 is further configured to store a digital value corresponding to the initial reference signal received from the magnetic reader 302 in the repository 310. In active mode, the controller 304 receives a second reference signal from the magnetic reader 302 and is configured to store a digital value corresponding to the reference signal in the repository 310.
The motor 308 displaces the movable carriage 202 on the rail 120 at a pre-determined speed. Further, when the movable carriage 202 is displaced on the rail 120, the magnetic reader 302 reads the magnetic strip continuously and is configured to generate count signals corresponding to the readings read by the magnetic reader 302. The magnetic reader 302 is further configured to transmit the generated count signals to the controller 304 on a real time basis. Further, when the movable carriage 202 is displaced, the first and the second detector 210a, 215a are configured to displace concurrently with the first and the second optical source 210, 215, thereby depicting the presence of light ray continuously. When the first detector 210a detects the absence of light ray due to the obstruction caused in between the first detector 210a and the first optical source 210 from the starting point of the work-piece, the first detector 210a generates a first identification signal and is configured to transmit the first identification signal to the controller 304. The controller 304 receives the first identification signal and stores the digital value corresponding to the count signal received concurrently from the magnetic reader 302. In one embodiment, the controller 304 instructs the motor 308 to displace the movable carriage 202, by means of the at least one roller 225, in a forward and backward direction for at least 2 times to precisely detect the starting point of the work-piece.
After storing the digital value of the count signal of the starting point of the work-piece, the controller 304 instructs the motor 308 to further displace the movable carriage 202 for a pre-determined distance already fed to the controller 304. The controller 304 compares the digital value of the distance travelled by the movable carriage 202 with the pre-determined distance and is configured to send a stop signal to the motor 308 when the distance travelled by the movable carriage 202 matches with the pre-determined distance to accurately measure the dimensions of the work-piece. In one embodiment, the controller 304 may send a stop signal to the motor 308 before the movable carriage 202 travels the pre-determined distance to compensate for the movement of the movable carriage 202 caused due to inertia, and the controller 304 further instructs the motor 308 to displace the movable carriage 202 in a forward and backward direction for at least two times to precisely cover the pre-determined distance of the work-piece.
The second optical source 215 and the corresponding second optical detector 215a are placed at a safe distance from the first optical source 210 and the corresponding first detector 210a, wherein the first optical source 210 is placed in the vicinity of the control housing 205 comprising the controller 304. The second optical source 215 and the corresponding second optical detector 215a have a similar function to that of the first optical source 210 and the corresponding first detector 210a respectively.
In an embodiment of the present disclosure, the linear measuring system may be configured to accurately measure the dimensions of any irregular shape such as curved sections of the work-piece by the means of additional measuring axis. In an alternative embodiment of the present disclosure, the linear measuring system may comprise a self-learning feature which means that the linear measuring system may be subjected to a dynamic learning phase where the system collects and stores the real time data in repositories in the form of data, documents, guidelines, and the like, in accordance with the inputs received from the magnetic reader, the optical sources and a user, before, during or after the dimensions of the work-piece are measured. The dynamic learning phase of the linear measuring system ensures that the linear measuring system of this disclosure is continuously improving itself organically and provides the linear measuring system with intelligence such as self-calibrating and recalibrating feature, authentication of the data before sharing the data with main controller, monitoring accuracy of positional data, compensating for the waviness of the magnetic strip, compensation for the error caused due to presence of oil, rust, and paint on the components of the linear measuring system, compensation for errors caused due to heat and temperature variations in the linear measuring system, self-scanning feature to analyse the health of the system, avoiding downtime of the linear measuring system and the like. In one embodiment, the controller of the linear measuring system may communicate and share the stored data and the real time data with a controller of a robotic system used for machining purposes and/or a conveyor system used for carrying the work-piece. In yet another embodiment, the linear measuring system may include an anti-collision system that comprises an interlocking mechanism to avoid collision with the robot of the robotic system and/or to avoid any contact with the conveyor system. In still another embodiment, the linear measuring system comprises an emergency stopping mechanism to enhance safety of the linear measuring system.
The present invention uses sliding movement friction that is friction drive. The sliding movement friction between the spring loaded roller assembly 220 and the at least one rail 120 provides continuous increments with ultra high precision of the magnetic scale leading to highly accurate measurement.
TECHNICAL ADVANCES AND ECONOMICAL SIGNIFICANCE
The technical advancements offered by the system of the present disclosure which add to the economic significance of the disclosure include the realization of a linear measuring system for measuring dimensions of a workpiece that:
- reduces the backlash errors occurred during measuring the dimensions of a workpiece;
- is accurate and measures the dimensions of a workpiece with high precision;
- reduces or eliminates the vibrations that a movable carriage, which is moved on a track to measure the dimensions of a workpiece, is subjected to;
- increases the life of the components involved in measuring the dimensions of a workpiece;
- needs less maintenance and is cost-effective; and
- is safe and secure.
The disclosure has been described with reference to the accompanying embodiments which do not limit the scope and ambit of the disclosure. The description provided is purely by way of example and illustration.
The embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
The foregoing description of the specific embodiments so fully revealed the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.
Throughout this specification the word “comprise”, or variations such as “comprises” or “comprising”, will be understood to imply the inclusion of a stated element, integer or step, or group of elements, integers or steps, but not the exclusion of any other element, integer or step, or group of elements, integers or steps.
The use of the expression “at least” or “at least one” suggests the use of one or more elements or ingredients or quantities, as the use may be in the embodiment of the disclosure to achieve one or more of the desired objects or results.
Any discussion of documents, acts, materials, devices, articles or the like that has been included in this specification is solely for the purpose of providing a context for the disclosure. It is not to be taken as an admission that any or all of these matters form a part of the prior art base or were common general knowledge in the field relevant to the disclosure as it existed anywhere before the priority date of this application.
While considerable emphasis has been placed herein on the components and component parts of the preferred embodiments, it will be appreciated that many embodiments can be made and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other changes in the preferred embodiment as well as other embodiments of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation.
,CLAIMS:
1. A linear measuring system for measuring dimensions of a workpiece placed on a conveyor belt, said system comprising:
a scale housing assembly (100) placed apart and parallel to said conveyor belt, said scale housing assembly (100) having:
at least one a track like structure (115);
at least one rail (120) disposed within said structure (115); and
a magnetic strip disposed on said rail (120), said magnetic strip having a plurality of graduations formed thereon;
a carriage assembly (200) having:
a movable carriage (202) mounted on said structure (115), said movable carriage (202) adapted to be displaced on said at least one rail (120); and
a magnetic reader (302) configured to read said graduations on said magnetic strip and correspondingly generate reference signals; and
a control unit (300) configured to detect the presence of said workpeice and generate at least one identification signal, and further configured to measure dimensions of said workpiece based on said identification signal and said reference signals.
2. The system as claimed in claim 1, wherein said control unit includes:
a controller (304);
at least one optical source (210, 215) mounted on said movable carriage (202) and configured to emit light rays;
at least one optical detector (210a, 215a) mounted on said movable carriage (202) and configured to receive said emitted light rays from said at least one optical source (210, 215) and generate said least one identification signal; and
a counter (315) cooperating with said magnetic reader (302) and configured to generate count signals corresponding to readings read by said magnetic reader (302).
3. The system as claimed in claim 2, wherein said controller (304) co-operates with said counter (315), said magnetic reader (302), said at least one optical source (210, 215), said at least one detector (210a, 215a), and a motor driver (306), said controller (304) configured to:
• receive a first reference signal from said magnetic reader (302);
• transfer power to said motor (308) via said motor driver (306) based on said first reference signal;
• activate said at least one optical source (210, 215) based on said first reference signal;
• store a digital value corresponding to said first reference signal in a repository (310);
• receive a second reference signal from said magnetic reader (302);
• store a digital value corresponding to said second reference signal in a repository (310);
• activate said motor (308) via said motor driver (306) to displace said movable carriage (202) on said rail (120) at a pre-determined speed;
• receive said count signals, sequentially, corresponding to readings read by said magnetic reader (302);
• receive a first identification signal and store a first digital value corresponding to a count signal received concurrently from said counter (315);
• instruct said motor to further displace said movable carriage (202) for a pre-determined distance; and
• compare the digital value of the distance travelled by said movable carriage (202) with said pre-determined distance to measure the dimensions of said workpiece.
4. The system as claimed in claim 1, wherein said scale housing assembly (100) includes a plurality of support stands (105) and at least one adjustable arm (110), said at least one adjustable arm (110) mounted on top of each of said support stands (105), said at least one adjustable arm (110) have three degrees of freedom to arrange said at least one adjustable arm (110) in a horizontally planar configuration.
5. The system as claimed in claim 3, wherein said controller (304) is further configured to instruct said motor (308) to displace said movable carriage (202) in a forward and backward direction, by means of at least one roller (225), for at least two times to precisely detect the starting point and/or ending point of said workpiece after receiving said at least one identification signal.
6. The system as claimed in claim 3, wherein said controller (304) is further configured to send a stop signal to said motor before said movable carriage (202) travels said predetermined distance to compensate for movement of said movable carriage (202) caused due to inertia.
7. The system as claimed in claim 5, wherein material used for said at least one roller (225) is a rubber, said at least one roller (225) is a spring loaded and adapted to grip said at least one structure (115).
8. The system as claimed in claim 1, wherein said system employs a self learning feature subjected to a dynamic learning phase.
9. The system as claimed in claim 1, wherein the material used for said at least one track like structure (115) is selected from the group consisting of carbon, thermosets, thermoplastics, reinforced thermosets, and reinforced thermoplastics.
10. The system as claimed in claim 1, wherein said at least one track like structure (115) is a C – section scale housing.