Radio compass azimuth accuracy testing device
A radio compass and precision test technology, applied in the field of aircraft avionics, can solve problems such as failure to reproduce faults on the ground, failure to guarantee the quality of installed finished products, and failure to test technical indicators of the radio compass system
Inactive Publication Date: 2016-03-16
HARBIN
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Problems solved by technology
[0002] At present, our company does not have a special tester for the calibration of finished products, which cannot meet the requirements of the radio compass system for pre-installation calibration. It cannot test the various functions and detailed technical indicators of the radio compass system. If it is installed directly, it cannot guarantee the finished product. the quality of
When the system is powered on to check that the system fails, there is no effective means to judge whether it is the fault of the finished product itself or the fault of the on-board circuit or other cross-linking equipment. The fault can only be eliminated on the plane, and the fault phenomenon cannot be reproduced on the ground.
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[0014] The invention provides a test device for the azimuth accuracy of a radio compass, such as figure 1 shown, including:
[0015] The UHF signal generator 3 is connected with the ADF signal simulator 2 by a radio frequency cable, and sends a radio frequency signal to the ADF signal simulator 2;
[0016] The radio compass azimuth accuracy test module 9 is connected with the compass receiver 1, receives the audio output produced by the compass receiver 1 according to the radio frequency signal, and sends the audio output to the earphone 5;
[0017] The audio power meter 6 is connected with the radio compass azimuth accuracy test module 9 to display the power value of the audio output to the earphone 5;
[0018] The wireless electromagnetic indicator 10 is connected with the radio compass azimuth accuracy test module 9 to display the azimuth analog quantity when the ADF signal simulator 2 demodulates the received radio frequency signal and forwards it to the compass receiver ...
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The invention belongs to the field of aircraft avionics, and provides a radio compass azimuth accuracy testing device. The radio compass azimuth accuracy testing device comprises an ultra-high-frequency signal generator 3, a radio compass azimuth accuracy testing module 9, a radio magnetic indicator 10 and an angular position indicator 11. The ultra-high-frequency signal generator 3 is connected with an ADF signal simulator 2 through a radio-frequency cable and sends radio-frequency signals to the ADF signal simulator 2, the radio compass azimuth accuracy testing module 9 is connected with a compass receiver 1, receives audio output generated by the compass receiver 1 according to the radio-frequency signals and sends the audio output to a headset 5, the radio magnetic indicator 10 is connected with the radio compass azimuth accuracy testing module 9 and displays the azimuth angle analog quantity generated when the ADF signal simulator 2 demodulates the received radio-frequency signals and then forwards the demodulated radio-frequency signals to the compass receiver 1, and the angular position indicator 11 is connected with the radio compass azimuth accuracy testing module 9 and displays the azimuth angle digital quantity generated when the ADF signal simulator 2 demodulates the received radio-frequency signals and then forwards the demodulated radio-frequency signals to the compass receiver 1.
Description
technical field [0001] The invention belongs to the field of aircraft avionics, and relates to a test device for azimuth accuracy of a radio compass. Background technique [0002] At present, our company does not have a special tester for the calibration of finished products, which cannot meet the requirements of the radio compass system for pre-installation calibration. It cannot test the various functions and detailed technical indicators of the radio compass system. If it is installed directly, it cannot guarantee the finished product. the quality of. When the system is powered on and checked for failures, there is no effective means to determine whether it is the fault of the finished product itself or the failure of the on-board wiring or other cross-linking equipment. The failure can only be eliminated on the plane, and the failure phenomenon cannot be reproduced on the ground. Contents of the invention [0003] The technical problem to be solved by the present inve...
Claims
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Login to View More IPC IPC(8): G01C17/38
CPCG01C17/38
Inventor 邵丽红肖红刘峰栾玉庆
Owner HARBIN