发明名称 |
FLOWMETER |
摘要 |
For the purpose of solving the above problems, the present invention includes: transmission/reception means provided in a flow path for performing transmission/reception using a state change of fluid; repetition means for repeating the transmission/reception; time measurement means for measuring a time of propagation repeated by the repetition means; flow rate detection means for detecting a flow rate based on a value of the time measurement means; and number-of-times change means for changing to a predetermined number of repetition times. With such a structure, an influence caused by a variation of a flow can be suppressed by changing the number of repetition times so as to be suitable for a variation. As a result, reliable flow rate measurement with a high accuracy can be achieved.
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申请公布号 |
US2005000301(A1) |
申请公布日期 |
2005.01.06 |
申请号 |
US20040711053 |
申请日期 |
2004.08.19 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
UMEKAGE YASUHIRO;NAGAOKA YUKIO;EGUCHI OSAMU;ABE SHUJI;NAKABAYASHI YUJI;OHJI KENZO;SHIBA FUMIKAZU;ADACHI AKIHISA;HASHIMOTO MASAHIKO;SATO TOSHIHARU;FUJII YUJI |
分类号 |
G01F1/66;G01F1/72;G01P5/24;(IPC1-7):G01M9/00 |
主分类号 |
G01F1/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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