GB830449A - Improvements relating to flowmeters - Google Patents
Improvements relating to flowmetersInfo
- Publication number
- GB830449A GB830449A GB3770356A GB3770356A GB830449A GB 830449 A GB830449 A GB 830449A GB 3770356 A GB3770356 A GB 3770356A GB 3770356 A GB3770356 A GB 3770356A GB 830449 A GB830449 A GB 830449A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rate
- flow
- circuit
- triggered
- section
- 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
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/86—Indirect mass flowmeters, e.g. measuring volume flow and density, temperature or pressure
- G01F1/90—Indirect mass flowmeters, e.g. measuring volume flow and density, temperature or pressure with positive-displacement meter or turbine meter to determine the volume flow
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
830,449. Fluid flowmeters. HOBSON Ltd., H. M. Nov. 19, 1957 [Dec. 10, 1956], No. 37703/56. Class 40 (1). A rate of mass flow indicator comprises a monostable multivibrator triggered by pulses from a monostable flip-flop circuit actuated by impulses from a turbine in the flow path applied to the grid of the normally non-conducting section V1. A meter is connected so as to measure the average current in the anode of this section and a potential, whose value varies in accordance with the density of the liquid whose rate of flow is to be measured, is applied to the normally conducting section V2 via a circuit V3 to control the length of time the multivibrator remains in its unstable state when triggered and so make the reading proportional to the rate of mass flow of the liquid. The circuit may be used with the flowmeter of Specification 798,508 to indicate total flow. Specifications 788,798 and 801,001 also are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3770356A GB830449A (en) | 1956-12-10 | 1956-12-10 | Improvements relating to flowmeters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3770356A GB830449A (en) | 1956-12-10 | 1956-12-10 | Improvements relating to flowmeters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB830449A true GB830449A (en) | 1960-03-16 |
Family
ID=10398404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3770356A Expired GB830449A (en) | 1956-12-10 | 1956-12-10 | Improvements relating to flowmeters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB830449A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3425274A (en) * | 1966-03-30 | 1969-02-04 | Halliburton Co | Flowmeter measuring system |
| US3635084A (en) * | 1969-08-28 | 1972-01-18 | Simmonds Precision Products | Mass fuel flow measurement system |
| US3780579A (en) * | 1972-02-02 | 1973-12-25 | Nat Distillers Chem Corp | Digital integrating flowmeter |
| US4941361A (en) * | 1988-06-20 | 1990-07-17 | Lew Hyok S | Three-in-one flowmeter |
-
1956
- 1956-12-10 GB GB3770356A patent/GB830449A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3425274A (en) * | 1966-03-30 | 1969-02-04 | Halliburton Co | Flowmeter measuring system |
| US3635084A (en) * | 1969-08-28 | 1972-01-18 | Simmonds Precision Products | Mass fuel flow measurement system |
| US3780579A (en) * | 1972-02-02 | 1973-12-25 | Nat Distillers Chem Corp | Digital integrating flowmeter |
| US4941361A (en) * | 1988-06-20 | 1990-07-17 | Lew Hyok S | Three-in-one flowmeter |
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