JPS57211015A - Heat pulse type thermometer - Google Patents

Heat pulse type thermometer

Info

Publication number
JPS57211015A
JPS57211015A JP56096218A JP9621881A JPS57211015A JP S57211015 A JPS57211015 A JP S57211015A JP 56096218 A JP56096218 A JP 56096218A JP 9621881 A JP9621881 A JP 9621881A JP S57211015 A JPS57211015 A JP S57211015A
Authority
JP
Japan
Prior art keywords
fluid
heating
circuit
time
pulse
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP56096218A
Other languages
Japanese (ja)
Inventor
Tatsuo Togawa
Tetsu Nemoto
Hirohisa Tsubakimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anima Corp
Original Assignee
Anima Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anima Corp filed Critical Anima Corp
Priority to JP56096218A priority Critical patent/JPS57211015A/en
Priority to DE19823231663 priority patent/DE3231663C2/en
Priority to PCT/JP1982/000017 priority patent/WO1982002591A1/en
Publication of JPS57211015A publication Critical patent/JPS57211015A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • G01F1/708—Measuring the time taken to traverse a fixed distance
    • G01F1/7084—Measuring the time taken to traverse a fixed distance using thermal detecting arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • G01F1/7044—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter using thermal tracers

Abstract

PURPOSE:To apply a constant temp. upon fluid by changing the width of the heating pulses applied upon a heating means for heating the fluid according to the velocity of flow of the fluid. CONSTITUTION:A heating element 13 and detecting elements 19 are provided in a flow pipe 11 in which fluid F flows. The heating pulses SH from a pulse width setting circuit 10 are applied to the element 13 through a heating circuit 18, and the time SD when the heated fluid passes through the elements 19 is detected with a heat sensing circuit part 15. The time difference ST between SD and SH is determined with a time setting circuit 16 and a flow rate is determined. Said circuit 10 is so constituted that it is driven by the ST when the ST is shorter than the time period of a timer 4 and is driven by the pulse SM of a pulse generator 5 of the narrower pulse width than that of the SH when it is longer than said period. Therefore, a generating body is preheated in such a way that it is set always at a constant temp. with respect to the measuring fluid.
JP56096218A 1981-01-19 1981-06-22 Heat pulse type thermometer Pending JPS57211015A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP56096218A JPS57211015A (en) 1981-06-22 1981-06-22 Heat pulse type thermometer
DE19823231663 DE3231663C2 (en) 1981-01-19 1982-01-18 Heat pulse type flowmeter - has detector output to vary heating and detection cycle in accordance with flow rate
PCT/JP1982/000017 WO1982002591A1 (en) 1981-01-19 1982-01-18 Heat-pulse type flow meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56096218A JPS57211015A (en) 1981-06-22 1981-06-22 Heat pulse type thermometer

Publications (1)

Publication Number Publication Date
JPS57211015A true JPS57211015A (en) 1982-12-24

Family

ID=14159093

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56096218A Pending JPS57211015A (en) 1981-01-19 1981-06-22 Heat pulse type thermometer

Country Status (1)

Country Link
JP (1) JPS57211015A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61164116A (en) * 1985-01-15 1986-07-24 Nippon Soken Inc Air flow rate measuring instrument
JPS61182818U (en) * 1985-05-08 1986-11-14
JPS62231174A (en) * 1986-03-31 1987-10-09 Sharp Corp Measuring method for flow velocity
JPH0933555A (en) * 1995-07-25 1997-02-07 Yamatake Honeywell Co Ltd Fluid measuring method and device
JP2003028692A (en) * 2001-07-18 2003-01-29 Nikkiso Co Ltd Method and apparatus for measuring quantity of flow

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS522761A (en) * 1975-06-19 1977-01-10 Stockhausen Josef Method of measuring multiicomponent liquid system and apparatus thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS522761A (en) * 1975-06-19 1977-01-10 Stockhausen Josef Method of measuring multiicomponent liquid system and apparatus thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61164116A (en) * 1985-01-15 1986-07-24 Nippon Soken Inc Air flow rate measuring instrument
JPS61182818U (en) * 1985-05-08 1986-11-14
JPS62231174A (en) * 1986-03-31 1987-10-09 Sharp Corp Measuring method for flow velocity
JPH0933555A (en) * 1995-07-25 1997-02-07 Yamatake Honeywell Co Ltd Fluid measuring method and device
JP2003028692A (en) * 2001-07-18 2003-01-29 Nikkiso Co Ltd Method and apparatus for measuring quantity of flow

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