摘要
为了使紫外光功率的测量更加方便和精准,研究并设计了一种电学定标热释电辐射计。其原理是通过对一种热释电探测器表面加热,同时引起光辐照加热与电加热的升温效应,当两者升温效应达到平衡时,认为光功率与电功率等效,从而将光功率的测量标准溯源到电功率的标准上,通过测量电加热功率来实现对光辐射功率的计量。计量系统有2路STM32单片机模块,1路构成斩波器控制系统控制光信号,另1路和A/D等器件构成数据采集和功率测量系统,对电功率值进行数据采集、转换、修正、存储和显示。整个设计测试可行,较传统的测量方式而言,准确性和稳定性更高,具有良好的应用前景。
In order to make the measurement of UV power more convenient and precise,we researched and designed the electric calibration pyroelectric radiometer.The principle is that heating the surface of a pyroelectric detector can simultaneously cause both the heating effect of light irradiation and electric heating.When the thermal effects of electric heating on the surface and the light heating reach balance,it is considered that optical power is equivalent to the electric power,thus the measurement standard of optical power can be traced back to the standard of electric power,then the measurement of the optical radiation power can be replaced by measuring the electric heating power.The metering system has two STM32 microcontroller modules,one of them constitutes a chopper control system to control the optical signal,the other and A/D with other devices constitute the data acquisition and power measurement system which are responsible for collecting data,converting data,correcting data,storing data and displaying the electrical power values.The whole design is tested feasibly.Compared with the traditional measurement methods,the accuracy and stability are higher.In short,it has good application prospect.
作者
瑚琦
汪敏
夏志迁
雷航
Hu Qi;Wang Min;Xia Zhiqian;Lei Hang(School of Optical Electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,Chin)
出处
《电子测量技术》
2018年第13期124-128,共5页
Electronic Measurement Technology
基金
上海市科委科学仪器科技攻关项目(12142200400)资助
关键词
紫外辐射
热释电探测器
光功率测量
光电等效
STM32
ultraviolet radiation
photoelectric detector
optical power measurement
photoelectric equivalent
STM32
