发明名称 ULTRASONIC FLOWMETER
摘要 PROBLEM TO BE SOLVED: To provide an ultrasonic flowmeter capable of highly precisely measuring the quantity of flow of a fluid by suppressing pressure variations propagated from the outside of a flow velocity measuring part at the flow velocity measuring part. SOLUTION: The ultrasonic flowmeter 50 is provided with both the flow velocity measuring part 10 having inner walls specifying a channel 20 of the fluid to be measured and at least one ultrasonic oscillator 10a and 10b provided for the inner walls of the flow velocity measuring part 10 for transmitting and receiving ultrasonic waves. Pressure waves for suppressing pressure variations propagated from the outside of the flow velocity measuring part are generated in the channel inner walls 21. COPYRIGHT: (C)2005,JPO&NCIPI
申请公布号 JP2004347348(A) 申请公布日期 2004.12.09
申请号 JP20030141776 申请日期 2003.05.20
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 SAITO KOICHI;HASHIMOTO MASAHIKO
分类号 G01F15/04;G01F1/66;G01F1/72;(IPC1-7):G01F1/66 主分类号 G01F15/04
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