IMP 用于热电阻测温的新方法及其输入通道的扩展

The New Method for Application of IMP to the Thermal-Resistance Temperature Measurement and the Extending of Its Imput Channels

英国施伦伯杰公司的数据采集器 IMP,35951B 能用于电阻测温,而35951A 却不能.前者仅有10个通道,后者20个通道,而两者的价格差不多,本文提供一种以35951A 代替35951B 用于热电阻测温的方法可使通道成本降低50%,又提供几种扩展 IMP 输入通道的方法可使工程费用成倍的降低.这些方法对大型计算机监测系统很有价值.

The 35951B lsolated Measurement Pods(IMP)made in English Schlumberger Corporation can be used in thermal resistance temperature measurement,but 35951A can't.The former has only 10 channels,but the latter has 20 channels. The price both of them is almost the same.A new method replacing 35951B with 35951A for measuring temperature with thermal resistance is given in this paper.The method of thermal resistance temperature measurement can reduce 50% of cost.And several methods of extending the imput chanels of IMP are given here so the engineering cost can be reduced several times, These methods are of great value to the large scale computer monitoring system.