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

A temperature sensor and signal compensation technology, applied in the field of aero-engines, can solve problems such as steady-state error, affecting the accuracy of airflow temperature measurement, lag error, etc., and achieve the effect of high-precision compensation

Active Publication Date: 2019-07-12
AECC COMML AIRCRAFT ENGINE CO LTD
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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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  • Temperature sensor signal compensation methods and devices and computer readable memory medium
  • Temperature sensor signal compensation methods and devices and computer readable memory medium
  • Temperature sensor signal compensation methods and devices and computer readable memory medium

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preparation example Construction

[0081] Figure 4 It is a schematic diagram of obtaining a signal synthesis value of a temperature sensor in an embodiment of the present invention. The present invention uses a sensor signal synthesis method to synthesize temperature sensor signals, wherein the sensor signal synthesis method is a method of synthesizing required sensor signals according to a certain relationship by using other sensor signals. Such as Figure 4 as shown, image 3 In step 301 of the embodiment, the step of acquiring the signal synthesis value T25_syn of the temperature sensor may include:

[0082] Step 11, synthesize the steady-state synthesized signal of the temperature sensor according to the total engine inlet temperature T1 and the fan rotor speed N1.

[0083] The total temperature at the inlet of the high-pressure compressor is T25. Since the signal of the fan rotor speed N1 sensor is accurate and without delay, the total temperature T1 at the engine inlet is basically a steady-state sign...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/10G01K7/16G01K13/02G01K13/024
CPCG01K7/10G01K7/16G01K13/02G01K13/024
Inventor 张荣侯灵峰魏芳
Owner AECC COMML AIRCRAFT ENGINE CO LTD
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