发明名称 GAS METER
摘要 PROBLEM TO BE SOLVED: To provide a gas meter enabling the integration of gas use quantity coinciding with actual consumption. SOLUTION: A gas meter consists of a propagation time measuring means A for measuring the signal propagation time in a gas flow channel, a flow rate operation means 17 for calculating a flow rate on the basis of the propagation time data from the propagation time measuring means A to integrate the calculated flow rate, a proparation time memory means 18 for preliminarily storing the signal propagation time of gas and a judge means 19 comparing the propagation time data from the propagation time measuring means A with the propagation time value from the propagation time memory means 18 to judge whether the propagation time data coincides with the propagation time value and the flow rate operation means 17 is operated so as to perform integration only when it is judged that the propagation time data coincides with the propagation time value by the judge means 19.
申请公布号 JP2001165728(A) 申请公布日期 2001.06.22
申请号 JP19990350742 申请日期 1999.12.09
申请人 YAZAKI CORP;MATSUSHITA ELECTRIC IND CO LTD 发明人 YAMASHITA TOMIISA;MASUDA ISAO;HARADA TOSHIHIRO;NIIMURA NORIO;ASANO KAZUTAKA;UEKI KOICHI;FUJII YASUSHI
分类号 G01F1/66;(IPC1-7):G01F1/66 主分类号 G01F1/66
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