In order to solve the problems of low efficiency and accuracy of volume method and mass method verifi-cation device at small flow points and that piston method verification device is only suitable for small flow points verification,an automatic verification device of water meter coupled with mass method and piston method is pro-posed,which uses double metering standard and flow time method or reversing method.The results show that the de-vice can automatically collect the volume indication value of the water meter and the actual volume flowing through the water meter,calculate the indication error of the tested water meter,and the accuracy level is 0.2.It can verify multiple water meters of the same specification in series at the same time,which improves the efficiency and accura-cy of the inspection.
关键词
水表/自动检定装置/质量法/活塞法/耦合式
Key words
water meter/automatic verification device/quality method/piston method/coupled type
维普
万方数据