Wireless passive high-temperature pressure sensor with temperature compensation and temperature compensation algorithm thereof

Abstract

The invention relates to a wireless passive high-temperature pressure sensor, in particular to a wireless passive high-temperature pressure sensor with temperature compensation and a temperature compensation algorithm thereof. The invention solves the problem that the conventional wireless passive high-temperature pressure sensor cannot measure pressure under the environment in which temperature constantly changes. The wireless passive high-temperature pressure sensor with temperature compensation comprises a first green ceramic plate, a second green ceramic plate, a third green ceramic plate, a fourth green ceramic plate and a fifth green ceramic plate; a lower polar plate of a first flat capacitor is arranged on the left part of the top surface of the first green ceramic plate; a lower polar plate of a second flat capacitor is arranged on the right part of the top surface of the first green ceramic plate; a first induction coil and the first flat capacitor are jointly formed into a temperature-compensating sensitive LC loop; a second induction coil and the second flat capacitor are jointly formed into a main sensitive LC loop. The invention is applicable to pressure measurement under high-temperature environments in the fields of automation, astronautics, aeronautics and national defense industry.

Description

technical field [0001] The invention relates to a wireless passive high-temperature pressure sensor, in particular to a wireless passive high-temperature pressure sensor with temperature compensation and a temperature compensation algorithm thereof. Background technique [0002] Wireless passive high-temperature pressure sensors are widely used in the fields of automation, aerospace, aviation, and national defense for pressure in high-temperature environments because of their characteristics such as non-contact wireless reading of data and passive sensitive heads (without active devices). Measurement. Under the existing technical conditions, the wireless passive high-temperature pressure sensor is limited by its own structure, and can only perform pressure measurement in an environment with constant temperature (when it performs pressure measurement in an environment with different temperatures, it needs to be tested at this temperature in advance. pressure calibration), bu...

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Problems solved by technology

[0003] The present invention provides a wireless passive high temperature pressure sensor with temperature compensation and its temperature compensation algorithm in order to solve

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