高温高精度石英压力传感器的标定方法  

Calibration Method for High Temperature and High Precision Quartz Pressure Sensors

作　　者：刘春侠 贺秀玲 苏渤力 LIU Chun-xia;HE Xiu-ling;SU Bo-li(College of Electronic Science and Control Engineering, Institute of Disaster Prevention)

机构地区：[1]防灾科技学院电子科学与控制工程学院

出　　处：《化工自动化及仪表》2019年第7期528-531,共4页Control and Instruments in Chemical Industry

基　　金：廊坊市科学技术研究与发展计划自筹经费项目(2015011008);防灾科技学院教学研究与教学改革项目(JY2016B11)

摘　　要：针对石油测井领域地层压力测试器中常用的高温高精度石英压力传感器,研究其压力测量过程中的温度补偿算法,并给出二次标定方法,开发专门用于高温高精度石英压力传感器的二次标定系统。经该系统标定后,传感器在全温范围内的压力测量精度达到出厂要求,证实了该标定系统的精确性。Aimed at the commonly-used quartz pressure sensors in the formation pressure test of the oil well logging field,the temperature compensation algorithm in the pressure measurement process was studied and a secondary calibration method was presented,including the calibration system specially developed for the quartz pressure sensors.The result show that,the quartz pressure sensor calibrated conforms to the pressure measurement accuracy in the full temperature range as the factory required.This verifies the accuracy of the calibration system.

关 键 词：石英压力传感器 二次标定 温度补偿 多项式拟合法 

分 类 号：TH812[机械工程—仪器科学与技术]