一种水质毒性检测仪前置放大电路设计  

The Research of Preamplifier Circuit of Monitoring Instruments of Toxicity of Pollutants

作　　者：叶姜瑜[1,2] 李书钺[1] 陈宇[3] 王琳[1] 

机构地区：[1]重庆大学城市建设与环境工程学院,重庆400045 [2]三峡库区生态环境教育部重点实验室(重庆大学),重庆400045 [3]西南大学生命科学学院,重庆400715

出　　处：《长江大学学报（自科版）（上旬）》2010年第3期93-97,共5页JOURNAL OF YANGTZE UNIVERSITY (NATURAL SCIENCE EDITION) SCI ＆ ENG

基　　金：国家重大科技专项(2008ZX07315-003)

摘　　要：设计了一种适用于水质毒性监测仪的前置放大电路,对其进行模拟仿真,并采用发光细菌毒性监测方法验证其实用性。发光细菌毒性效应曲线证明,该前置放大电路能够将微弱的电流信号转化至0～5V的电压,可较好地应用于水质毒性检测仪中。A preamplifier for the monitoring instruments of biological toxicity was designed and simulated.It shows that this kind of preamplifier can change the faint current to the voltage of 0～5V by analyzing the bio-toxicity response of bioluminescent bacteria.It can be used in the monitoring instruments of biological toxicity with great potential in the circuit for the other biosensors,and lays the good foundation for the actual designing manufacture biology toxic instrumentation.

关 键 词：水质毒性 前置放大电路 发光细菌 

分 类 号：TN722.71[电子电信—电路与系统]