摘要
介绍了一套基于单片机的海水电导率测量系统,是国内正在研究的抛弃式盐温深测量系统中的一部分。在硬件的设计实现过程中,采用了温度补偿、低温漂整流等技术来克服海水温度变化40℃对传感器和电路的影响。经实验证明,该系统测量海水电导率的精度达到±0.08 mS/cm.
A set of microcontroller-based seawater conductivity measurement system was introduced,which was a part of the expendable conductivity,temperature、depth profile measurement equipment in the domestic research at present.In the hardware design,negative feedback op amp and low temperature drift rectifier filtering techniques were used to overcome the impact on sensors and PCB,because of 40 degrees temperature changes in seawater.The experiment proves that the accuracy for the seawater conductivity measurement system reaches ± 0.08 ms/cm.
出处
《仪表技术与传感器》
CSCD
北大核心
2010年第11期91-92,95,共3页
Instrument Technique and Sensor
关键词
温度补偿
磁芯温度系数
高精密整流电路
temperature compensation
core temperature coefficient
precision rectifier circuit
