摘要
研制了一种电导率仪,采用方波激励,并合理的选择取样点范围,避免了电极的极化现象和电缆线的电容对电导率测量的影响,同时使用温度控制器来控制温度,并进行温度补偿,以减小温度对测量的影响。提高了整机的测量精度。该仪器能利用标准溶液自动校准电极常数、可进行上限报警、输出信号完全隔离并可电子校准、历史数据查询等功能。该仪器配有0.01cm^-1,0.1cm^-1或1m^-1常数的电极,测量范围相应为0~1,0~100或0~10000μs·am^-1,精度为0.2%(满量程)。
This KD- 05 conductance adopts square wave prompting and dynamic sampling to measure, in order to avoid polarization of electrode and the disturbance of cable' s capacitance. Simultaniously, we can keep the temperature stable by the caioristat and get the temprature compensated. By this means, we can decrease the disturbance of temprature to measurement, ultimately improve the accuracy of the instrument itself.
出处
《仪表技术与传感器》
CSCD
北大核心
2006年第6期19-20,33,共3页
Instrument Technique and Sensor
关键词
电导率
温度补偿
激励
方波
conductance
temprature compensated
prompting
square wave