摘要
温度漂移妨碍了高温压力仪表在工业上的应用。本文搭建了一套由标准压力源、高精度温控系统、压力传递装置所组成的高温压力标定平台,整个平台的不确定度为±0.2KPa,能测量0~700℃内压力仪表的温度漂移,并且能在高温环境下对高温压力仪表进行标定。通过实例,给出了高温压力仪表在高温下的校正方法。该平台可用于各种高温压力仪表,如填充硅油式压力计、填充Na K式压力计、光纤式压力计和电容式压力计等,具有较大的普遍意义。
Temperature drift hinders the application of high temperature pressure meter in industry.The paper builds a high temperature pressure calibration platform which consists of standard pressure source,high precision temperature control system and pressure transmission device,the uncertainty of the platform is ± 0.2KPa,the platform has the ability of temperature drift measurement and calibration at 0~700 DEG C. The paper gives correction method of high temperature pressure meter at high temperature environment by an example.The platform can be used for a variety of high temperature pressure meter such as silicone oil filled pressure meter,Na K filled pressure meter,optical fiber pressure meter,capacitance pressure meter,and has great universal significance.
出处
《自动化与仪器仪表》
2015年第4期132-134,共3页
Automation & Instrumentation
基金
中国科学院战略性先导科技专项项目(No.XDA02010300)资助
关键词
高温压力仪表
温度漂移
标定平台
校正
High temperature meter
Temperature drift
Calibration platform
correction
