Optical high-precision temperature monitoring device and method based on quantum weak measurement theory

Abstract

The invention provides an optical high-precision temperature monitoring device and method based on a quantum weak measurement theory. The optical high-precision temperature monitoring device comprisesan LED light source, a first collimating lens, a front selection polarizing film, a temperature control cavity, a liquid crystal sample wafer and a Soleil-Babinet compensator, a quarter-wave plate, arear selection polarizing film, a second collimating lens, a spectrum analyzer and a computer. The initial temperature in the temperature control cavity is measured through a temperature measuring device, and the Soleil-Babinet compensator is adjusted to a bias phase corresponding to the initial temperature according to the initial temperature; the average frequency of received light is calculated according to the spectrum of the received light of the spectrum analyzer, and a step of deducing and calculating the current temperature according to the average frequency of the received light is conducted; depending on the current temperature, the Soleil-Babinet compensator is adjusted to a bias phase corresponding to the current temperature; and the last two steps are repeated to realize real-time monitoring and correction of the temperature.

Description

technical field [0001] The invention relates to the field of high-precision monitoring and measurement, in particular, to an optical high-precision temperature monitoring device and method based on quantum weak measurement theory, especially an optical high-precision temperature monitoring device with a large dynamic range and adjustable temperature based on quantum weak measurement theory. Precision temperature monitoring device and method. Background technique [0002] High-precision temperature monitoring is an important process of constant temperature control. In the fields of industrial production, intelligent monitoring, and biomedical engineering, precise constant temperature control has very important applications. They need to monitor subtle changes in temperature, and then use temperature control devices to compensate for these temperature changes to achieve a constant temperature effect. Therefore, high-precision temperature monitoring in plays a vital role in th...

AI Technical Summary

Problems solved by technology

The present invention can timely discover the abnormal display temperature of the constant temperature tester and improve the accuracy of the constant temperature test. However, this solution uses resistance temperature measurement, and the accuracy is difficult to be guaranteed. It is not applicable to some scenes that require high-precision measurement and monitoring.

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