微生物密度在线检测仪的研制  

Development of on-Line Detection Instrument Based on Microbial Density

作　　者：周鹏飞[1] 王振华 章晓眉 王金辉 梁伟 蔡佳玲 刘戈 蔡强[1,2] 

机构地区：[1]杭州电子科技大学电子信息学院,杭州310018 [2]浙江清华长三角研究院,嘉兴314006 [3]北京华夏科创仪器技术公司,北京100085

出　　处：《电子器件》2015年第3期626-631,共6页Chinese Journal of Electron Devices

基　　金：嘉兴市科技计划项目(2012AY1001)

摘　　要：由于微生物密度是生化培养过程中的重要参数,故为了检测此参数,设计中采用在线测量反应器内溶液光密度的方法获取微生物的生长信息,并以此原理研制了流动式光电比色仪。通过微控制器STM32F107VC输出PWM波形控制蠕动泵,实现培养液的连续流过流动式光学比色池,采用光电池检测培养液吸收的光强。该仪器可独立显示检测参数与调整控制参数,也可通过RS485与PC机通信。该仪器能实现反应器内微生物生长过程的实时监测。As the microbial density is an important biochemical parameters of the training process,therefore,in order to detect the parameters,the design adopts the method of online measuring optical density of the reactor to obtain information on the growth of microorganisms,and flow photoelectric colorimetric instrument was developed based on this principles. Through MCU STM32F107 VC output PWM to control peristaltic pump,to achieve the culture of continuous flow through the optical flow cuvette,using photocell to detect culture absorbed light intensity. The instrument can display detected parameters independently and adjust the control parameters,also can communicate with the PC by RS485. The instrument can achieve real-time monitoring of the growth of microorganisms in the reactor.

关 键 词：微生物密度 光密度 光电池 RS485 在线检测 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]