DESC:This application claims priority from provisional application number 202221072258 titled “Manufacturing of mechanical platform for testing of Electronic support measure antenna” filed on 14-12-2022.
FIELD OF DISCLOSURE
[0001] The present disclosure generally relates to radar electronic support measures (RESM) systems and, more specifically, relates to an amplitude direction finding unit (ADFU) Mast Test Jig.

BACKGROUND OF THE DISCLOSURE
[0002] The Amplitude Direction Finding Unit (ADFU) is a critical component of the Radar Electronic Support Measures (RESM) system used in various industries, most notably in naval and maritime applications. The RESM system plays a crucial role in alerting and protecting submarines and naval vessels from potential threats by monitoring and analyzing electromagnetic radiations emitted by various sources, including radar and communication systems. By identifying and analyzing these emissions, the RESM system provides valuable situational awareness, enabling the crew to take appropriate defensive measures and avoid potential dangers.
[0003] In industrial and military applications, the RESM system with its ADFU is deployed on submarines, naval vessels, and various military equipment’s to enhance their defensive capabilities. The RESM system consists of three essential sections: the ADFU, RPU (Receiver Processing Unit), and CDU (Control & Display Unit). Among these, the ADFU is responsible for performing amplitude direction finding tasks. Given the critical role of the ADFU in the RESM system and its deployment in sensitive naval and military operations, regular maintenance, testing, and repair activities are essential to ensure the system's reliable and optimal performance.
[0004] Traditionally, the maintenance and testing of the RESM system, including the ADFU, were conducted on the submarines themselves, particularly on the top of the bridge fin where the ADFU is located.
[0005] However, this maintenance process posed significant challenges due to the limited space and the presence of other masts in the vicinity. One of the common methods employed for maintenance involved the use of submarine and bridge fin scaffolding.
[0006] However, this approach was time-consuming and involved several cumbersome procedures, including obtaining permission for submarine operations and adherence to specific safety protocols. Furthermore, the use of traditional pipe structures for maintenance posed risks of vibration and unbalance during the analysis and rectification process.
[0007] Thus, in light of the above-stated discussion, there exists a need for an innovative solution that would allow for more efficient and effective maintenance and testing of the ADFU and RESM system.

SUMMARY OF THE DISCLOSURE
[0008] The following is a summary description of illustrative embodiments of the invention. It is provided as a preface to assist those skilled in the art to more rapidly assimilate the detailed design discussion which ensues and is not intended in any way to limit the scope of the claims which are appended hereto in order to particularly point out the invention.
[0009] According to illustrative embodiments, the present disclosure focuses on an Amplitude Direction Finding Unit (ADFU) Mast Test Jig and a method for conducting maintenance and repair activities on the ADFU of a Radar Electronic Support Measures (RESM) system which overcomes the above-mentioned disadvantages or provides the users with a useful or commercial choice.
[0010] The present disclosure solves all the above major limitations of maintenance and repair activities on the ADFU of a RESM system. Further, the present disclosure ensures that the disclosed system may provide a Test Jig and a method for conducting maintenance and repair activities on the ADFU.
[0011] An objective of the present disclosure is to offer a dedicated test jig and a systematic method, the disclosure aims to simplify the maintenance process and enhance the accuracy of analysis and rectification.
[0012] Another objective of the present disclosure is to ensure the safety and convenience of technicians and personnel involved in ADFU maintenance. The unique design of the ADFU Mast Test Jig, including the designated electrical connector connection window and the opening cut-out, allows for easy and safe access to the ADFU during maintenance and repair activities, reducing the risk of accidents or errors.
[0013] Another objective of the present disclosure is to enhance the reliability and performance of RESM systems by providing a stable and robust platform for ADFU maintenance and testing.
[0014] Another objective of the present disclosure is to offer an independent test jig that allows maintenance and repair activities to be conducted at workshops rather than on submarines, the disclosure aims to save valuable time and resources.
[0015] Yet another objective of the present disclosure is to make the ADFU Mast Test Jig versatile and applicable to various industrial and military settings beyond submarine RESM maintenance.
[0016] In light of the above, in one aspect of the present disclosure, a ADFU Mast Test Jig and a method for conducting maintenance and repair activities on the ADFU is disclosed herein. The ADFU Mast Test Jig comprises a structure made of Mild Steel material, equipped with a designated electrical connector connection window positioned within it. The structure is designed with a strong foundation and an opening cut-out at the extreme bottom side.
[0017] In one embodiment, the unique design of the jig enables it to withstand a weight of up to 600kg and provides hassle-free cable entry for maintenance work.
[0018] In one embodiment, the dimensions of the test jig include a height of approximately 1900mm, a diameter ranging from 170mm to 180mm, and a thickness of 8mm to 10mm, making it versatile and suitable for various applications beyond submarine RESM maintenance.
[0019] In one aspect of the present disclosure, a method for conducting maintenance and repair activities on the ADFU is disclosed herein.
[0020] The method comprises the steps of placing the ADFU securely on the ADFU Mast Test Jig to ensure stability during subsequent process, connecting electrical connectors to the ADFU through the designated electrical connector connection window for testing and analysis, conducting comprehensive maintenance, analysis, and rectification processes, including necessary inspections and repairs to optimize the ADFU's functionality, and facilitating cable entry and management through the opening cut-out, simplifying cable handling during maintenance and repair activities.
[0021] In one embodiment, the method provides a systematic and efficient approach to conducting maintenance and repair activities on the ADFU of a Radar Electronic Support Measures (RESM) system by utilizing the ADFU Mast Test Jig.
[0022] These and other advantages will be apparent from the present application of the embodiments described herein.
[0023] The preceding is a simplified summary to provide an understanding of some embodiments of the present invention. This summary is neither an extensive nor exhaustive overview of the present invention and its various embodiments. The summary presents selected concepts of the embodiments of the present invention in a simplified form as an introduction to the more detailed description presented below. As will be appreciated, other embodiments of the present invention are possible utilizing, alone or in combination, one or more of the features set forth above or described in detail below.
[0024] These elements, together with the other aspects of the present disclosure and various features are pointed out with particularity in the claims annexed hereto and form a part of the present disclosure. For a better understanding of the present disclosure, its operating advantages, and the specified object attained by its uses, reference should be made to the accompanying drawings and descriptive matter in which there are illustrated exemplary embodiments of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS
[0025] To describe the technical solutions in the embodiments of the present disclosure or in the prior art more clearly, the following briefly describes the accompanying drawings required for describing the embodiments or the prior art. Apparently, the accompanying drawings in the following description merely show some embodiments of the present disclosure, and a person of ordinary skill in the art can derive other implementations from these accompanying drawings without creative efforts. All of the embodiments or the implementations shall fall within the protection scope of the present disclosure.
[0026] The advantages and features of the present disclosure will become better understood with reference to the following detailed description taken in conjunction with the accompanying drawing, in which:
[0027] FIG. 1 illustrates a perspective view of an Amplitude Direction Finding Unit (ADFU) Mast Test Jig, in accordance with an exemplary embodiment of the present disclosure;
[0028] FIG. 2 illustrates a flow chart of a non-limiting method for conducting maintenance and repair activities on an Amplitude Direction Finding Unit (ADFU) of a Radar Electronic Support Measures (RESM) system, in accordance with an exemplary embodiment of the present disclosure;
[0029] Like reference, numerals refer to like parts throughout the description of several views of the drawing.
[0030] The (ADFU) Mast Test Jig and a method flow chart for conducting maintenance and repair activities on an (ADFU) is illustrated in the accompanying drawings, which like reference letters indicate corresponding parts in the various figures. It should be noted that the accompanying figure is intended to present illustrations of exemplary embodiments of the present disclosure. This figure is not intended to limit the scope of the present disclosure. It should also be noted that the accompanying figure is not necessarily drawn to scale.

DETAILED DESCRIPTION OF THE DISCLOSURE
[0031] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure.
[0032] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be apparent to one skilled in the art that embodiments of the present disclosure may be practiced without some of these specific details.
[0033] Various terms as used herein are shown below. To the extent a term is used, it should be given the broadest definition persons in the pertinent art have given that term as reflected in printed publications and issued patents at the time of filing.
[0034] The terms “a” and “an” herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced items.
[0035] The terms “having”, “comprising”, “including”, and variations thereof signify the presence of a component.
[0036] Referring now to FIG. 1 and FIG. 2 to describe various exemplary embodiments of the present disclosure. FIG. 1 illustrates a perspective view of an Amplitude Direction Finding Unit (ADFU) Mast Test Jig 100, in accordance with an exemplary embodiment of the present disclosure.
[0037] The test jig 100 may comprise a main body, the structure 102, which may be constructed using Mild Steel material. Mild Steel is chosen for its strength and durability, ensuring the robustness of the test jig 100 to withstand the demands of maintenance activities. The material's properties allow it to handle heavy loads and provide a stable platform for the ADFU.
[0038] The test jig 100 may incorporate a designated electrical connector connection window 104 within the structure 102. This window serves as an access point for electrical connector connections to the ADFU during testing and analysis. The strategic positioning of the window streamlines the connection process, making it easier for technicians to establish electrical connections efficiently.
[0039] To enhance stability and precision during maintenance and repair, the test jig 100 may be built on a strong foundation 108. The foundation is carefully designed to withstand any potential vibrations that may arise during the analysis and rectification processes. The use of a strong foundation ensures accurate and reliable results during maintenance activities.
[0040] At the extreme bottom side of the structure 102, the test jig 100 may feature an opening cut-out. This cut-out provides easy access for cables and maintenance work, making the process hassle-free and efficient. Technicians can manage cables and perform necessary maintenance tasks with ease through this opening.
[0041] The test jig 100 stands at a height of approximately 1900mm, providing sufficient space for accommodating the ADFU during maintenance and analysis. The diameter ranges from 170mm to 180mm, and the thickness measures 8mm to 10mm, ensuring a compact and versatile design suitable for various industrial and military applications beyond submarine RESM maintenance.
[0042] FIG.2 illustrates a method 200 that may outline the steps involved in conducting maintenance and repair activities on the ADFU component of a Radar Electronic Support Measures (RESM) system.
[0043] The method 200 commences with placing the ADFU on the test jig 100. This step involves securely positioning the ADFU on the structure 102 at 202. By using the unique design and strength of the structure, the ADFU is firmly and reliably held in place during the subsequent maintenance and analysis processes.
[0044] The electrical connectors are securely connected to the ADFU at 204 through the designated electrical connector connection window 104 located within the structure 102 of the test jig 100. This allows for easy access to the ADFU and streamlines the process of establishing electrical connections for testing and analysis.
[0045] The method 200 proceeds with conducting comprehensive maintenance, analysis, and rectification processes on the ADFU at 206. Technicians perform necessary inspections and repairs to ensure the optimal functionality of the ADFU component.
[0046] Finally, the technicians facilitate cable entry and manage cables through the opening cut-out located at the extreme bottom side of the structure 102 of the test jig 100 at 208. The opening cut-out allows for hassle-free cable entry and maintenance work.
[0047] While the invention has been described in connection with what is presently considered to be the most practical and various embodiments, it will be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims.
[0048] A person of ordinary skill in the art may be aware that, in combination with the examples described in the embodiments disclosed in this specification, units and algorithm steps may be implemented by electronic hardware, computer software, or a combination thereof.
[0049] The foregoing descriptions of specific embodiments of the present disclosure have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present disclosure to the precise forms disclosed, and many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described to best explain the principles of the present disclosure and its practical application, and to thereby enable others skilled in the art to best utilize the present disclosure and various embodiments with various modifications as are suited to the particular use contemplated. It is understood that various omissions and substitutions of equivalents are contemplated as circumstances may suggest or render expedient, but such omissions and substitutions are intended to cover the application or implementation without departing from the scope of the present disclosure.
[0050] Disjunctive language such as the phrase “at least one of X, Y, Z,” unless specifically stated otherwise, is otherwise understood with the context as used in general to present that an item, term, etc., may be either X, Y, or Z, or any combination thereof (e.g., X, Y, and/or Z). Thus, such disjunctive language is not generally intended to, and should not, imply that certain embodiments require at least one of X, at least one of Y, or at least one of Z to each be present.
[0051] In a case that no conflict occurs, the embodiments in the present disclosure and the features in the embodiments may be mutually combined. The foregoing descriptions are merely specific implementations of the present disclosure, but are not intended to limit the protection scope of the present disclosure. Any variation or replacement readily figured out by a person skilled in the art within the technical scope disclosed in the present disclosure shall fall within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
,CLAIMS:I/We Claim:
1. An Amplitude Direction Finding Unit (ADFU) Mast Test Jig (100), the test jig comprising:
a structure made of a mild steel material (102);
a designated electrical connector connection window positioned within the structure (106);
a strong foundation for the structure (108); and
an opening cut-out at the extreme bottom side of the structure.
2. The test jig (100) as claimed in claim 1, the test jig has dimensions, including a height of approximately 1900mm, a diameter ranging from 170mm to 180mm, and a thickness of 8mm to 10mm.
3. The test jig (100) as claimed in claim 1, wherein the structure (102) is capable of withstanding a weight of up to 600kg.
4. The test jig (100) as claimed in claim 1, wherein the designated electrical connector connection window (104) allows easy access for electrical connector connections.
5. The test jig (100) as claimed in claim 1, wherein the opening cut-out at the extreme bottom side facilitates hassle-free cable entry and maintenance work.
6. A method (200) for conducting maintenance and repair activities on an Amplitude Direction Finding Unit (ADFU) of a Radar Electronic Support Measures (RESM) system, the method comprising:
placing the ADFU on the test Jig;
connecting electrical connectors to the ADFU;
conducting maintenance, analysis, and rectification processes; and
facilitating cable entry and work through the opening cut-out.
7. The method (200) as claimed in claim 6, wherein the method comprising placing of ADFU on the test Jig involves positioning the ADFU securely on the structure (102) made of Mild Steel material.
8. The method (200) as claimed in claim 6, wherein the connection of electrical connectors to the ADFU through the designated electrical connector connection window (104) involves establishing electrical connections with the ADFU for testing and analysis.
9. The method (200) as claimed in claim 6, wherein conducting maintenance, analysis, and rectification processes at (206) includes performing necessary inspections and repairs to ensure the optimal functionality of the ADFU.
10. The method (200) as claimed in claim 6, wherein facilitating cable entry and work through the opening cut-out at (208) involves accessing and managing cables during the maintenance and repair activities.