Title:
FLOW MEASURING METHOD AND FLOW MEASURING DEVICE
Document Type and Number:
Japanese Patent JP3822771
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a fluid flow measuring method and a flow measuring device capable of obtaining an accurate gas flow value without mixing the error caused by the pulsation of a fluid such as gas in a flow value and capable of being continuously used over a long period without increasing power consumption.
SOLUTION: A start phase control circuit 5 has time intervals Td between measuring periods T and changes the cycle or phase of the start timing of the measuring periods T differently from the cycle or phase of the pulsation measured by a pulsation measuring circuit 6 based on the predetermined regularity.
Inventors:
Mamoru Suzuki
Hideo Kato
Yukio Nagaoka
Shinzo Abe
Yasuhiro Umekage
Hideo Kato
Yukio Nagaoka
Shinzo Abe
Yasuhiro Umekage
Application Number:
JP36201599A
Publication Date:
September 20, 2006
Filing Date:
December 21, 1999
Export Citation:
Assignee:
Tokyo Gas Co., Ltd.
Matsushita Electric Industrial Co., Ltd
Matsushita Electric Industrial Co., Ltd
International Classes:
G01F1/66; G01F3/22; G01F1/68; G01F1/72; (IPC1-7): G01F1/72; G01F1/66; G01F3/22
Domestic Patent References:
| JP10197303A | ||||
| JP62187218A | ||||
| JP60190814A | ||||
| JP11044563A | ||||
| JP11190654A |
Attorney, Agent or Firm:
Yoichiro Fujishima