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Calibrator for angular displacement sensor

A technology of angular displacement sensor and calibrator, which is applied in the direction of instruments, measuring devices, and electric devices, etc. It can solve the problems of not having the ability to calibrate the sensor before installation, and not having the ability to calibrate the electrical zero position, so as to reduce the airborne failure rate. , Improve maintainability, and strong practicability

Active Publication Date: 2018-10-12
哈尔滨哈飞航空工业有限责任公司
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AI Technical Summary

Problems solved by technology

[0004] At present, during the final assembly of the control stability augmentation system, the installation of the sensor only performs mechanical zero calibration, and there is no electrical zero calibration capability
And it does not have the ability to verify the sensor before installation

Method used

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  • Calibrator for angular displacement sensor
  • Calibrator for angular displacement sensor

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Embodiment

[0015] Invented an angular displacement sensor calibrator, which can detect the effective total resistance of the sensor, the linearity of the double potentiometer, and the polarity performance of the sensor, and realize the electrical zero calibration. See the attached circuit for details figure 2 . The J1 and J2 sockets of the tester correspond to the electrical interfaces of the J01 and J02 of the sensor respectively.

[0016] A1, B1, and C1 of the J1 socket are connected to the 1-1, 3-1, and 2-1 terminals of the potentiometer selection switch S3 (three-pole double-throw); A2, B2, and C2 of the J1 socket are respectively connected to the potentiometer selection switch The terminals 1-2, 3-2, and 2-2 of S3 (three-pole double-throw) are connected, and the potentiometer 1 and potentiometer 2 can be selected and switched through the potentiometer selection switch S3 (three-pole double throw).

[0017] Potentiometer selection switch S3 (three-pole double-throw) has terminals 1 and...

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Abstract

The invention belongs to the field of aircraft avionics testing, and specifically relates to a calibrator for an angular displacement sensor, wherein the calibrator is used for calibrating the angular displacement sensor. Currently, only mechanical zero calibration is carried out for the installation of a sensor during the assembly of a control augmentation stability system, wherein there is no capability of electrical zero calibration. Moreover, there is no verification capability before the installation of the sensor. The technical problem to be solved is to achieve the electrical zero calibration of the installation of a lateral rolling position sensor, a pitching position sensor, a pedaling position sensor and a total distance position sensor of the control augmentation stability system and to achieve the detection of the basic performances of the sensors, thereby guaranteeing the reliability of the sensor before assembly, and effectively improving the control precision of the control augmentation stability system.

Description

Technical field [0001] The invention belongs to the field of aircraft avionics testing, and in particular relates to an angular displacement sensor calibrator, which is used to calibrate the angular displacement sensor. Background technique [0002] The roll position sensor, pitch position sensor, pedal position sensor, and total distance position sensor in the control stability enhancement system are used to sense the displacement changes of the heading cycle lever and the heading pedal. The sensor consists of a dual linear potentiometer, a housing assembly, a rocker arm assembly, a fixed plate assembly and a socket. The rocker arm of the sensor is connected to the rod system of the control stabilization system. The motion range of the rocker arm is 50°±2°. The displacement of the rocker arm after rotation will be converted into a DC voltage signal output, and the scale factor is 0.3V / °(accuracy ±0.5 %). These DC voltage signals are differentiated by the control console of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B7/30
CPCG01B7/30
Inventor 宋巍谭飞朱希宁春玲
Owner 哈尔滨哈飞航空工业有限责任公司
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