GB1219710A - A fluid flowmeter - Google Patents
A fluid flowmeterInfo
- Publication number
- GB1219710A GB1219710A GB3093669A GB3093669A GB1219710A GB 1219710 A GB1219710 A GB 1219710A GB 3093669 A GB3093669 A GB 3093669A GB 3093669 A GB3093669 A GB 3093669A GB 1219710 A GB1219710 A GB 1219710A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fluid
- assembly
- conduit
- temperature
- rate
- 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.)
- Expired
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
- G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
- G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
-
- 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
- G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
- G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
- G01F1/6842—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow with means for influencing the fluid flow
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Flowmeters (AREA)
- Measuring Volume Flow (AREA)
Abstract
1,219,710. Measuring fluid flow rate electrically. STANDARD TELEPHONES & CABLES Ltd. June 18,1969. No.30936/69. Heading G1N. The rate of flow of a fluid through a conduit 1, Fig. 1 of heat conductive material is determined from the heat dissipation differential between two heated thermistors 5, the first in assembly 2 in thermal contact with the conduit 1, and the second in assembly 3 in thermal contact with the fluid via a probe 13 whose cross-sectional area is varied along its length to obtain uniform heat dissipation to the fluid along its length. Each thermistor 5 is maintained at a constant temperature and thus at a constant resistance by automatic control of the heating current. The power fed to assembly 2 is indicative of the temperature of the fluid and conduit and the power fed to assembly 3 additionally compensates for the heat removed by the flowing fluid. Hence the power difference is indicative of the fluid flow rate. In a modification, Fig. 2 for use with flowing liquids, the probe 13 of assembly 3 is located outside the conduit 1 upstream of a restriction 16, the excess pressure on the upstream side of the restriction causing the liquid to rise into the assembly 3 by an amount dependent on the rate of liquid flow. The flowmeter may be combined with a further assembly similar to assembly 2 for measuring the temperature of the fluid at another location to determine the temperature change in the fluid and the total heat supplied by, e. g. a central-heating system.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3093669A GB1219710A (en) | 1969-06-18 | 1969-06-18 | A fluid flowmeter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3093669A GB1219710A (en) | 1969-06-18 | 1969-06-18 | A fluid flowmeter |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1219710A true GB1219710A (en) | 1971-01-20 |
Family
ID=10315422
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3093669A Expired GB1219710A (en) | 1969-06-18 | 1969-06-18 | A fluid flowmeter |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1219710A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2404204A1 (en) * | 1977-09-24 | 1979-04-20 | Messer Griesheim Gmbh | Monitoring instrument for fluid flow rates in metallic pipes - partic. for low boiling point liquefied gases |
GB2176292A (en) * | 1985-06-11 | 1986-12-17 | Potterton Int Ltd | Air-flow measuring device and method |
WO1996031759A2 (en) * | 1995-04-03 | 1996-10-10 | Ifm Electronic Gmbh | Heat transmission monitoring and/or measuring apparatus |
EP1024350A1 (en) * | 1997-10-15 | 2000-08-02 | Mitsui Mining & Smelting Co., Ltd | Flow rate sensor, flow meter, and discharge rate control apparatus for liquid discharge machines |
EP1193477A1 (en) * | 1999-06-24 | 2002-04-03 | Mitsui Mining & Smelting Co., Ltd. | Flow rate sensor unit, flowmeter and flow sensor |
US7980481B2 (en) | 2004-12-08 | 2011-07-19 | Rosemount Inc. | Thermally controlled process interface |
DE102010015813A1 (en) * | 2010-04-20 | 2011-10-20 | Krohne Messtechnik Gmbh | Sensor arrangement for a calorimetric mass flowmeter |
-
1969
- 1969-06-18 GB GB3093669A patent/GB1219710A/en not_active Expired
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2404204A1 (en) * | 1977-09-24 | 1979-04-20 | Messer Griesheim Gmbh | Monitoring instrument for fluid flow rates in metallic pipes - partic. for low boiling point liquefied gases |
GB2176292A (en) * | 1985-06-11 | 1986-12-17 | Potterton Int Ltd | Air-flow measuring device and method |
GB2176292B (en) * | 1985-06-11 | 1989-07-26 | Potterton Int Ltd | Air-flow measuring device and method |
WO1996031759A2 (en) * | 1995-04-03 | 1996-10-10 | Ifm Electronic Gmbh | Heat transmission monitoring and/or measuring apparatus |
WO1996031759A3 (en) * | 1995-04-03 | 1996-11-07 | Ifm Electronic Gmbh | Heat transmission monitoring and/or measuring apparatus |
US5848094A (en) * | 1995-04-03 | 1998-12-08 | I F M Electronic Gmbh | Heat transmission monitoring and/or measuring apparatus |
EP1024350A1 (en) * | 1997-10-15 | 2000-08-02 | Mitsui Mining & Smelting Co., Ltd | Flow rate sensor, flow meter, and discharge rate control apparatus for liquid discharge machines |
EP1024350A4 (en) * | 1997-10-15 | 2006-09-20 | Mitsui Mining & Smelting Co | Flow rate sensor, flow meter, and discharge rate control apparatus for liquid discharge machines |
EP1193477A1 (en) * | 1999-06-24 | 2002-04-03 | Mitsui Mining & Smelting Co., Ltd. | Flow rate sensor unit, flowmeter and flow sensor |
EP1193477A4 (en) * | 1999-06-24 | 2006-10-18 | Mitsui Mining & Smelting Co | Flow rate sensor unit, flowmeter and flow sensor |
US7980481B2 (en) | 2004-12-08 | 2011-07-19 | Rosemount Inc. | Thermally controlled process interface |
DE102010015813A1 (en) * | 2010-04-20 | 2011-10-20 | Krohne Messtechnik Gmbh | Sensor arrangement for a calorimetric mass flowmeter |
US8544352B2 (en) | 2010-04-20 | 2013-10-01 | Krohne Messtechnik Gmbh | Sensor arrangement including a bracket for mounting a probe |
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