基于Wi-Fi通讯的大功率光功率计的研制  

A Research of High-Power Optical Power Meter Based on Wi-Fi Communications

作　　者：隋成华[1,2,3] 徐之力 徐丹阳[1,2,3] SUI Chenghua;XU Zhili;XU Danyang(Center for optics & Optoelectronics Research(COOR),Zhejiang University of Technology,Hangzhou 310023,China;Collaborative Innovation Center for Information Technology in Biological and Medical Physics,Zhejiang University of Technology,Hangzhou 310023,China;College of Science Zhejiang University of Technology,Hangzhou 310023,China)

机构地区：[1]浙江工业大学光学与光电子研究中心,杭州310023 [2]浙江工业大学生物与医学物理信息技术协同创新中心,杭州310023 [3]浙江工业大学理学院,杭州310023

出　　处：《传感技术学报》2019年第1期155-160,共6页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金项目(61705197)

摘　　要：介绍了一种基于Wi-Fi无线通信技术的大功率光功率计的设计原理和实现方法。该光功率计以STM32为微控制器,采用热电堆探测器实现热电转换。它不但能通过ESP8266Wi-Fi模块支持与上位机实现无线通信,并且同时支持USB通信模式。该系统可以在0.19μm～15.0μm波长范围内实现100 m W～100 W激光功率的连续自动量程切换测量。该光功率计还具备了通过脉冲宽度调制(PWM)与0～5 V模拟信号电压输出方式去反馈控制激光器输出强度,以及外触发功能。测试结果表明,该光功率计不但可以很好地满足工程应用中大功率激光器输出功率的检测与控制,并且实现了基于Wi-Fi无线通信方式的移动式测量。The design principle and implementation method of a high-power optical power meter based on Wi-Fi wireless communication technology is presented in this paper.STM32 is taken as the micro controller and thermopile detector is used to realize thermoelectric conversion in this meter.It not only supports wireless communication with host computer through ESP8266 Wi-Fi module,but also supports USB communication mode.The system can realize continuous automatic range-switching measurement of 100 mW^100 W laser power in the wavelength range of 0.19μm^15.0μm.The optical power meter also has the function of pulse width modulation(PWM)and 0~5 V analog signal voltage output to feedback control laser output intensity and external trigger.The test results show that the optical power meter can not only satisfy very well the detection and control of high power laser output power in engineering application,but also realize the mobile measurement based on Wi-Fi wireless communication mode.

关 键 词：无线通信技术 光功率计 Wi-Fi模块 热电堆探测器 量程自动切换 

分 类 号：TH741[机械工程—光学工程]