Title:
THERMAL FLOWMETER
Document Type and Number:
Japanese Patent JPH04339219
Kind Code:
A
Abstract:
PURPOSE:To achieve an accurate measurement of a fluid with an S/N ratio improved by transmitting heat securely to the fluid flowing through a pipeline. CONSTITUTION:A heater 3 for heating a fluid is provided on one entire width- wise surface of a pipeline 2 formed flat in section whose width dimensions Y are larger than height dimensions X. A flow velocity distribution of the fluid flowing through the pipeline 2 can be averaged to allow uniform transmission of heat of the heater 3 to the fluid. As a result, the S/N ratio can be improved in temperature detectors 4a and 4b. In addition, higher heat exchangeability is achieved with a larger contact between the heater 3 and the pipeline 2 thereby enabling the lowering of power consumption.
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Inventors:
KAWASAKI KAZUMASA
NAKAMURA AKIRA
KUROMARU TATSURO
NAKAMURA AKIRA
KUROMARU TATSURO
Application Number:
JP465891A
Publication Date:
November 26, 1992
Filing Date:
January 18, 1991
Export Citation:
Assignee:
TOKICO LTD
International Classes:
G01F1/68; G01F1/688; (IPC1-7): G01F1/68
Attorney, Agent or Firm:
Masatake Shiga (2 outside)