Multichannel sensor electrical parameter time division detection method and detection device

Abstract

The invention relates to a multichannel sensor electrical parameter time division detection method. The method comprises the following steps of: configuring a plurality of channels connected with a micro-control unit or a digital meter, configuring a serial port bus for connecting the micro-control unit with an instruction upper computer, so that the upper computer controls the on-off of at leastone channel in the multiple channels through the serial port bus, placing a to-be-tested sensor on a simulation vibration table, and correspondingly connecting an output terminal of the to-be-tested sensor with the plurality of channels, and enabling a simulation workbench to work to instruct the upper computer to send an instruction to enable a digital meter to enter a corresponding measurement mode, and from the current time period to the next time period, switching to enable any one or more channels communicated with the to-be-tested sensor to be communicated until measurement is completed.The method can replace a manual monitoring detection method for aircraft sensor equipment, solves a technical problem that a test result is not sufficient, achieves the real-time detection and capturing of accidental parameter jump, guarantees the accuracy of detection data, and improves the troubleshooting efficiency.

Description

technical field [0001] The invention belongs to the technical field of electric parameter measurement of aircraft sensing equipment, and in particular relates to a time-division detection method and a detection device for electric parameters of multi-channel sensors. Background technique [0002] Aircraft engine is a kind of high-speed rotating equipment, its working conditions change frequently, and the range of changes is complicated. As the external management of the engine, there are usually different degrees of vibration brought by rotating machinery. When the aero-engine is running at high speed, if the above-mentioned vibration is too large, it will cause pulsation in the pipeline for oil transportation or luck, which will affect the normal operation of the engine. Even if the vibration intensity reaches a certain level, the pipeline will be directly damaged. break, and then lead to major safety accidents. [0003] The most conceivable method is to monitor the real-t...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, provide a kind of manual monitoring and detection method that can replace the prior art to the aircraft sensor equipment, and solve the technical problems of single detection and measurement methods and insufficient test results, and realize The real-time detection and capture of occasional parameter jumps ensures the accuracy of the detection data and improves the troubleshooting efficiency. The multi-channel sensor electrical parameter time-division detection method and detection device

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