Reproducibility of calibration results by 0-A-0 pressurization procedures for hydraulic pressure transducers
Reproducibility of calibration results by 0-A-0 pressurization procedures for hydraulic pressure transducers
复制标题
液压压力传感器通过 0-A-0 加压程序校准结果的再现性
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
T. Kobata
中科院分区：
文献类型：
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作者：
H. Kajikawa;T. Kobata
本文重点研究了0-A-0增压对机电压力表的校准，以便通过各种程序获得可重复性的结果。在0-A-0增压中，在每个校准压力下完成每次测量后，将压力释放到大气压，并使用大气压下的输出读数进行偏移校正。压力表在10mpa至100mpa压力范围内的各种压力顺序和时间间隔条件下使用全自动校准系统进行校准，该系统使用压力平衡作为标准设备。主要报道了石英波登式压力传感器的测试结果。0-A-0加压得到的滞后量几乎是逐步加压得到的滞后量的十分之一。即使对于随机压力序列，先前施加的压力的影响也小于百万分之十。根据不同时间间隔的校准结果，提出了校准过程的要点。当使用适当的程序时，0-A-0加压在很大程度上减少了加压历史的影响，从而产生高度可重复性的校准结果。
This paper focuses on 0-A-0 pressurization for the calibration of electromechanical pressure gauges in order to obtain reproducible results by various procedures. In 0-A-0 pressurization, pressure is released to atmospheric pressure after finishing each measurement at each calibration pressure, and the output reading at atmospheric pressure is used for offset correction. Pressure gauges are calibrated under various pressure sequence and time interval conditions in the pressure range of 10 MPa to 100 MPa using a fully automated calibration system that uses a pressure balance as the standard device. Results for a quartz Bourdon-type pressure transducer are mainly reported. The hysteresis obtained by 0-A-0 pressurization is found to be nearly one-tenth of that obtained by stepwise pressurization. The effect of the previously applied pressure is less than 10 parts per million even for a random pressure sequence. Key points for calibration procedures are proposed from the calibration results for different time intervals. When the appropriate procedure is used, 0-A-0 pressurization largely reduces the effect of pressurization history, thus yielding highly reproducible calibration results.