气体计量标准装置检定能力验证测试

Gas Measurement Standard Device Calibration Ability Verification Test

由于气体计量标准装置中测量介质具有动态性和压缩性,检定或校准结果能力验证比较复杂。应结合工作实践,针对不同气体计量标准装置选择合适的测试对象。计量标准装置能力验证方法主要有传递比较法和比对法,采用这两种方法,对待测临界流文丘里喷嘴气体流量标准装置进行了实验验证。结果表明,采用比对法能更好地考察气体计量标准测量结果的准确性、一致性和可靠程度。

Due to the dynamic and compressibility of the measuring medium, the test or calibration results capability validation of the gas flow standard device is more complicated.Combining work practice, select appropriate test objects for different gas measurement standards devices. Measurement standard capacity verification method is mainly transmission comparison method and comparison method.Using these two methods,Experimental verification was carried out on the Venturi nozzle gas flow standard device to be measured. The results show that the comparison method can be better to examine the accuracy, consistency and reliability of the measuring results of gas measurement standards.