三波长复合激光治疗仪控制系统研制
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摘要
根据三波长复合激光治疗仪的功能需求,研制了三波长激光治疗仪的控制系统,主要包括主控制器模块、激光器驱动模块、温控控制模块、人机交互模块、系统电源模块等的研制。基于ARM Cortex-M3内核的微处理器进行了主控制器的设计,解决了半导体激光器驱动的关键技术,设计了以TEC为控温元件的温控系统,以触摸屏作为媒介进行了人机交互的设计,利用MDK开发工具进行了控制系统软件的设计,并对各模块进行了联调和整机输出测试。测试结果表明,驱动电路输出电流稳定度低于1%,温控模块的控温响应速率快、精度高,整机输出激光功率与设置功率最大偏差不超过2%。
According to the functional requirements of the three-wavelength laser therapeutic instrument,the control system of the three-wavelength laser therapeutic instrument is developed,including the main controller module,laser driver module,temperature control module,human-computer interaction module,system power module,etc.Based on the microprocessor of ARM Cortex-M3 kernel,the key technology of semiconductor laser driver is solved,the temperature control system with TEC as temperature control element is designed,the human-computer interaction is designed with touch screen as medium,the control system software is designed with MDK development tool,and the modules are debugged and the output of the whole machine is tested. The test results show that the stability of the output current of the drive circuit is less than 1%,the response rate of the temperature control module is fast and the accuracy is high,and the maximum deviation between the laser power output of the whole machine and the set power is less than 2%.
According to the functional requirements of the three-wavelength laser therapeutic instrument,the control system of the three-wavelength laser therapeutic instrument is developed,including the main controller module,laser driver module,temperature control module,human-computer interaction module,system power module,etc.Based on the microprocessor of ARM Cortex-M3 kernel,the key technology of semiconductor laser driver is solved,the temperature control system with TEC as temperature control element is designed,the human-computer interaction is designed with touch screen as medium,the control system software is designed with MDK development tool,and the modules are debugged and the output of the whole machine is tested. The test results show that the stability of the output current of the drive circuit is less than 1%,the response rate of the temperature control module is fast and the accuracy is high,and the maximum deviation between the laser power output of the whole machine and the set power is less than 2%.
引文
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[2]贾亚威,杨晖,李然,等.激光散斑血流成像对中医理疗功效的检测[J].光学精密工程,2017,25(06):1410-1417.
[3]朱姗姗,路交,刘鹤南,等.生物医学光子学在糖尿病视网膜病变中的应用进展[J].中国光学,2018,11(03):459-474.
[4]王玲,涂沛,徐铭恩.激光辐照下组织光热响应的实时监测研究[J].中国激光,2015,42(01):156-163.
[5]李东,王国祥,何雅玲,等.激光与生物组织选择性光热效应的两温度模型[J].工程热物理学报,2014,35(08):1614-1618.
[6]赵读亮,李文洁,梁勖,等.准分子激光皮肤治疗仪能量稳定性研究[J].红外与激光工程,2017,46(12):45-51.
[7]董宁宁,崔锦江,徐建根,等.1470nm大功率半导体激光溶脂仪控制系统设计[J].光学精密工程,2018,26(08):1896-1903.
[8]卢立斌,王海鹏,管迎春,等.激光微加工技术制备生物医用器械的现状与进展[J].中国激光,2017,44(01):65-79.
[9]吴頔,樊淼,张露云,等.金纳米星/双锥的可控制备、光热转换及体外光热治疗[J].发光学报,2018,39(03):280-286.
[10]刘熙明,魏旭,窦立刚.激光系统中半导体激光器温度稳定系统研究与设计[J].强激光与粒子束,2019,31(02):21-28.
[11]李江澜,石云波,赵鹏飞,等.TEC的高精度半导体激光器温控设计[J].红外与激光工程,2014,43(06):1745-1749.
[12]欧阳竑,刘霄海,王侠,等.半导体致冷器在大功率激光器中的应用[J].光通信技术,2010,34(09):33-35.
[13]叶茂飞,张正望,方伟林,等.980/1470nm双波长半导体激光治疗前列腺增生的短期疗效分析[J].老年医学与保健,2017,23(03):175-177.
[14]朱平,吴小光.激光与激光医学[M].北京:人民军医出版社,2011.
[15]田亚玲,李创社,张朝阳.高精度和高稳定性半导体激光器恒流驱动电源[J].西安交通大学学报,2019,53(03):1-5.
[16]张龙,陈建生,高静,等.大功率半导体激光器驱动电源及温控系统设计[J].红外与激光工程,2018,47(10):102-108.
[17]何启欣,刘慧芳,李彬,等.多通道半导体激光器温控系统[J].光学学报,2017,37(11):187-194.
[18]邓增,沈俊,戴巍,等.大功率半导体激光器散热研究综述[J].工程热物理学报,2017,38(07):1422-1433.
[19]陈焕庭,陈福昌,何洋,等.多芯片LED器件热学特性分析[J].发光学报,2019,39(5):751-765.