High-temperature vibration testing device and testing method for fuel-to-oil temperature sensor

Abstract

The invention relates to a high-temperature vibration testing device for a fuel-to-oil temperature sensor, and aims at simulating a real working environment of the fuel-to-oil temperature sensor of anengine. The device comprises a heating device, a medium circulating device and a vibrating device. The invention also relates to a high-temperature vibration testing method. The method comprises thefollowing steps: additionally mounting the fuel-to-oil temperature sensor at the top part of a vibration clamp; starting the testing device; adjusting a working medium to reach a specified temperature; conveying the working medium into a vibration clamp; simulating the real vibration environment of the sensor; and monitoring the output resistance of the fuel-to-oil temperature sensor. With the adoption of the device and the method, the problems in simulating of the high-temperature working environment of the engine in a vibration test of the fuel-to-oil temperature sensor can be solved; the testing capacity is greatly improved; the testing cost is decreased; and moreover, product fault problems can be assisted to find out and solved; the product reliability and the product quality are improved.

Description

technical field [0001] The invention belongs to the field of environmental testing of an aero-engine fuel lubricating oil temperature sensor, and in particular relates to a high-temperature vibration test device and a testing method for a fuel lubricating oil temperature sensor. Background technique [0002] Whether the output signal of the fuel oil temperature sensor is stable or not will directly affect the normal operation of the aircraft engine, and in severe cases, it will cause air parking. Therefore, it is particularly important to screen out the hidden dangers of the quality of the sensor in advance during the test. After research, it is found that the failure time of the fuel oil temperature sensor is in a high-temperature environment, and it is difficult to find product quality problems with a single vibration or temperature test. The combination of a general standard vibration table and a temperature box has a narrow temperature range. Such tests cannot be withst...

AI Technical Summary

Problems solved by technology

After research, it is found that the failure time of the fuel oil temperature sensor is in a high-temperature environment, and it is difficult to find product quality problems with a single vibration or temperature test. The combination of a general standard vibration table and a temperature box has a narrow temperature range. cannot withstand such tests

The test medium provided by the special temperature box cannot simulate the real working environment

At present, in the vibration test, a hot blower is often used to heat the temperature-sensing end of the product, which can easily lead to local overheating and damage the product

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