中文摘要：

在现有手动天平测量原理的基础上,设计了能实现自动快速测量的LiBr溶液浓度测量系统,该系统基于电磁力矩反馈平衡原理测量出LiBr溶液的密度,同时测量出溶液的温度,计算机根据溶液的浓度与密度及温度的关系自动计算出被测溶液的浓度。给出了电磁力矩反馈平衡测量系统工作原理,设计了系统各组成部分,并进行了相关的实验研究。理论研究和实验结果均表明,通过该系统可实现降膜后LiBr溶液浓度高精度自动快速测量,且能实现高精度测量的要求。

英文摘要：

An automatically liquor concentration measuring system with the electromagnetic torque feedback was designed based on the existed common manual balance.The density of LiBr liquor can be measured by the measurement system,and the temperature of LiBr liquor is measured in the mean time.The computer can calculate LiBr liquor concentration directly by the relationship of the concentration,the density,and the temperature of LiBr liquor.The work theory of the system with the electromagnetic torque feedback was pr...