Background of invention :
Components used in conventional module tester were difficult -o procure as they are of obsolete and this affected fleet serviceability. There was a reed to develop an improved module tester which could meet the requirement and improved serviceability. The newly developed module tester thus met all the desired requirements to perfection
Summary of invention :
Voltage regulator of Jaguar military aircraft is having 10 types of modules to monitor the power fault condition on aircraft. This tester is designed to test each modules and analyse input and output signal levels. This unit has used differential amplifiers to compensate errors and impart stable output and relay switching unit for achieving fester switching. In this tester tester all switch controls are interfaced with relay control to prevent signal loading and to ensure fault free operation.
This unit was subjected to environmental tests and system testing carried out satisfactorily.
Object of Invention :
The objective of invention is to develop improved module tester.
Detailed description of the Invention :
Module Tester is a fourth line tester which is used to perform the functional tests on the following Modules of Voltage regulator of Jaguar Aircraft:
• Acceleration Module (Zl)
• High Phase Module (Z3)
• Low Phase Module (Z4)
• Power Supply Module (Z5)
• Frequency Detection Module (Z6)
• Diode Pump Module (Z7)
• Engagement Module (Z8)
• Amplifier Module (Z9 A Z10)
• Multi Vibrator Module (Zll & Z13)
• Triggering Module (Z14, Z16 to Z19)

The Module Tester is contained within a portable splash proof cabinet. All switches, indicators and read-out meter are grouped on a control panel, which is protected by the sealed lid of the cabinet when the test set is not in use. A power supply of 110-127-220-237V, 50Hz to 400Hz, current consumption of less than 1A single phase is provided through a cable loom connected to a 6-pin plug mounted on the rear plate of the cabinet.In place of rotary switches relay controlled switching matrix have been used in indigenous tester to improve the response.
CLAIMS: We claim
The issue of obsolescence has been resolved over and for all by developing improved module Tester.As the module tester is indigenously developed, we claim 1hat the serviceability of the Jaguar fleet has been enhanced.