High-insulation electrical parameter channel switching measurement method and measurement device

Abstract

The invention relates to a high-insulation electrical parameter channel switching measurement method. The method comprises steps of configuring channels between insulation test equipment and a plurality of to-be-tested sensors; configuring a control unit for controlling channel switching; configuring a channel hardware protection structure; controlling a control unit to send an instruction to drive a channel connected between the current to-be-tested sensor and the insulation test equipment to open; controlling a control unit to send instructions to drive a channel connected between the next to-be-tested sensor and the insulation test equipment to open. The method is advantaged in that a plurality of to-be-tested sensors and the insulation test equipment are connected through a plurality of relays to construct a plurality of channels, the to-be-tested sensors are tested one by one by sequentially switching the channels communicated with the insulation test equipment through the controlunit, an instruction is sent through the control unit, and switching among the channels is transmitted and decoded through a serial interface, so a mode of testing the to-be-tested sensors one by onethrough a manual method in the prior art is replaced, and detection efficiency is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of aero-engine sensor testing, and in particular relates to a high-insulation electrical parameter channel switching measurement method and a measurement device. Background technique [0002] Electrical accessories in aero-engines are the basic components of each control system, which are applied to the acquisition of various electrical parameters and the adjustment of related control systems. The complex working environment in the aero-engine makes the insulation failure rate of electrical accessories extremely high. Therefore, it is of great significance for flight safety to accurately diagnose the insulation performance of electrical accessories when the engine is in the field for maintenance. [0003] For example, there are strict standards for the insulation performance of sensors in aero-engines, and higher requirements are placed on the measurement of sensor insulation performance parameters. However...

AI Technical Summary

Problems solved by technology

However, under the existing technology, a variety of sensors with different models, specifications, and shapes are involved in the production process, and the batches of various types of products are complicated and the quantity fluctuates greatly. Sensors with different specifications and appearances are tested uniformly

[0004] In order to deal with the above technical problems, for the sake of equipment quality and finished product safety, at this stage, sensors of different specifications, models, and shapes can only be tested one by one manually to accurately measure their insulation properties. Obviously, this measurement method Although it is ensured that the insulation parameters of each sensor can meet the set specifications, there are technical problems such as long product inspection cycle and low inspection efficiency.

[0005] In view of this, the existing technology should be improved to solve the technical problems of long measurement period and low inspection efficiency of the aero-engine sensor insulation performance in the existing technology

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