计量标准技术报告
计量标准名称 精密压力表标准装置 建立计量标准单位 上海市崇明计量质量检测所 计量标准负责人 陈海峰 筹建起止日期
目 录
一、 计量标准的工作原理及其组成····························(1)
二、 选用的计量标准器及主要配套设备························(2)
三、 计量标准的主要技术指标································(3)
四、 环境条件··············································(3)
五、 计量标准的量值溯源和传递框图··························(4)
六、 计量标准的测量重复性考核······························(5)
七、 计量标准的稳定性考核··································(21)
八、 测量不确定度评定······································(24)
九、 计量标准的测量不确定度验证····························(25)
十、 结论··················································(26)
十一、 附加说明··············································(26)
一、计量标准的工作原理及其组成 精密压力表的工作原理是弹簧管在压力和真空作用下,产生弹性变形引起 管端位移,其位移通过机械传动机构进行放大,传递给指示装置,再由指针在 刻有法定计量单位的分度盘上指出被测压力或真空量值。 本所建立的计量标准是按照JJG52-1999《弹簧管式一般压力表、压力真空表 和真空表检定规程》,采用帕斯卡液压传递原理,运用直接比较的方法进行检定的。 1