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为解决传统接触式测温中存在的破坏温度场、装置布线不便且需要回收读数等问题,设计了一套瞬态温度测试装置。该装置基于比色测温原理,主要由光学系统、二象限探测器、光电放大电路以及单片机STM32组成。其中利用STM32单片机设计了无线数据传输模块,以保证实验数据的实时传输与测试温度的实时显示,大大削弱了测试环境的影响,提高了装置的易用性。利用该装置在实验室环境中进行了瞬态温度的测试实验,并与红外测温仪进行了实验结果的对比。选择了其中6个时间节点进行了测试结果的分析,结果表明:比色测温装置与红外测温仪的相对误差均小于1.2%,能够满足温度测试的需求。
In order to solve the problems of destruction temperature field, device wiring inconvenience and the need of recovering readings in traditional contact temperature measurement, a set of transient temperature testing device is designed. The device is based on the principle of colorimetric temperature measurement, mainly by the optical system, two quadrant detectors, optical amplifier and microcontroller STM32 form. The design of a wireless data transmission module using STM32 microcontroller to ensure real-time transmission of experimental data and real-time display of test temperature greatly weakened the impact of the test environment and improve the ease of use of the device. The device was used to test the transient temperature in a laboratory environment and the experimental results were compared with the infrared thermometer. Six time nodes were chosen to analyze the test results. The results show that the relative errors between colorimetric temperature measuring device and infrared thermometer are both less than 1.2%, which can meet the needs of temperature testing.