Temperature sensor signal compensation methods and devices and computer readable memory medium

Abstract

The invention discloses temperature sensor signal compensation methods and devices and a computer readable memory medium. A method comprises the steps of obtaining a measured value of a temperature sensor, a dynamic characteristic parameter of the temperature sensor, a signal synthesized value of the temperature sensor and a mass velocity signal synthesized value of a temperature sensor measured section; obtaining a compensation value of a temperature sensor signal according to the measured value of the temperature sensor, the dynamic characteristic parameter of the temperature sensor, the signal synthesized value of the temperature sensor and the mass velocity signal synthesized value of the temperature sensor measured section; and taking the compensation value of the temperature sensor signal as an output value of the temperature sensor signal. According to the methods, the devices and the computer readable memory medium, influence of gas flow temperature itself on a sensor characteristic is taken into consideration, influence of various factors on a measured error of the temperature sensor is taken into consideration relatively comprehensively, and high precision compensation ofthe measured signal of the temperature sensor is realized.

Description

technical field [0001] The invention relates to the field of aero-engines, in particular to a temperature sensor signal compensation method and device, and a computer-readable storage medium. Background technique [0002] In an aero-engine, the airflow temperature sensor is usually in the form of a thermocouple or a thermal resistance, which is used to measure the total temperature of the engine inlet (T12), the total temperature of the high-pressure compressor inlet (T25), the total temperature of the high-pressure compressor outlet (T3), the engine exhaust For important engine cross-section temperature parameters such as temperature (EGT), there will inevitably be steady-state errors in the measurement of temperature sensors, especially obvious hysteresis errors, which seriously affect the measurement accuracy of airflow temperature. [0003] Taking the total inlet temperature (T25) of the high-pressure compressor as an example, T25 is a very important parameter, which is ...

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Problems solved by technology

[0002] In an aero-engine, the airflow temperature sensor is usually in the form of a thermocouple or a thermal resistance, which is used to measure the total temperature of the engine inlet (T12), the total temperature of the high-pressure compressor inlet (T25), the total temperature of the high-pressure compressor outlet (T3), the engine exhaust Temperature (EGT) and other important engine cross-section temperature parameters, temperature sensor measurement will inevitably have steady-state errors, especially obvious hysteresis errors, which seriously affect the measurement accuracy of airflow temperature

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