SPA-IPSEC-2G
SPA-IPSEC-2G
SPA-IPSEC-2G
采用组合测量方法对流量仪表进行干式,是根据各有关参数的测量结果及其不确定度,按照误差处理方法合成出仪表的流量测量不确定度的,是以一定的置信度间接确定流量仪表的不确定度范围的,它不能给出具体误差值。它通常是以大量丰富的试验数据和标准化的技术要求为前提,保持了计量的试验性和一致性的特点。比如,标准孔板节流装置、临界流文丘利喷嘴等已有相当成熟的干式技术。以孔板流量计为例,其流出系数公式是建立在极其丰富和充分的试验数据基础之上的,标准上给出的流出系数的误差范围:不大于0.6%。在合成孔板流量测量的不确定度时,也只能以一定的置信度给出一定的不确定度范围。
◆ 企业名称:厦门泰尼电气有限公司
◆ 主营业务:DCS,PLC
◆ 经营模式: 贸易
◆ 贸易地区:
◆ 联系人: 小黄《女士》
◆ 电话:
◆手机:
◆ QQ:2917675397
◆ 传真: (备注“01006”收)
◆ E-mail: 2917675397@qq.com
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