一体式超高压差压锰铜压力计辅助平衡比对装置  

An integrated ultra-high pressure auxiliary balance comparison apparatus used by difference pressure manganin gauges

作　　者：潘征宇[1] 洪扁[1] 胡安伦[1] 张进明[1] 陈光[1] 蒋晨君 

机构地区：[1]上海市计量测试技术研究院,上海201203

出　　处：《工业仪表与自动化装置》2016年第5期100-102,共3页Industrial Instrumentation & Automation

基　　金：2013年度上海市质量技术监督局公益基金项目"超高压国家基准的比对方法和装置研究"(2013-09)

摘　　要：超高压差压锰铜压力计辅助平衡比对装置是由2台锰铜压力计和2只液控切断阀组成的超高压集成块,结合惠斯登电桥原理,消除了锰铜测压芯体的温度漂移影响,利用电势差表征了2台超高压压力计所复现的量值之差,达到了高压压力下的差压测量功能。The ultra- high pressure auxiliary balance comparison apparatus used by difference pressure manganin gauges comprised of two manganin gauges and two toggle valves controlled by hydraulic pressure. According to the principle of Wheatstone bridge, the temperature drift of the apparatus was eliminated. The different pressure between two ultra -high pressure balances was represented by the potential difference. The function of measuring the difference pressure between ultra - high pressure was realized by the apparatus.

关 键 词：差压 超高压 锰铜压力计 比对 

分 类 号：TH812[机械工程—仪器科学与技术]