GB1417161A - Fluid flow measuring apparatus - Google Patents
Fluid flow measuring apparatusInfo
- Publication number
- GB1417161A GB1417161A GB855872A GB855872A GB1417161A GB 1417161 A GB1417161 A GB 1417161A GB 855872 A GB855872 A GB 855872A GB 855872 A GB855872 A GB 855872A GB 1417161 A GB1417161 A GB 1417161A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- capacitor
- sensing means
- fluid flow
- globule
- 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
- G01F1/704—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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/0006—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances
- G01P13/0013—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using a solid body which is shifted by the action of the fluid
- G01P13/002—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using a solid body which is shifted by the action of the fluid with electrical coupling to the indicating devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
1417161 Measuring fluid flow electrically LUCAS INDUSTRIES Ltd 14 Feb 1973 [24 Feb 1972] 8558/72 Headings G1A and G1N A fluid flow measuring apparatus comprises a tube 11 through which the fluid flows, first and second sensing means 13 at first and second points spaced apart along the tube, and which sense passage of a mercury globule 12 carried by the fluid flow. Each sensing means consists of a light source 15 and a photo-transistor 14, the first sensing means, i.e. that at the lower position with respect to the tube, acting to open switch 21 when the globule passes whereby capacitor 18 is charged from D.C. supply voil 16, and the second sensing means acting to changeover switch 19 when the globule passes whereby charging of the capacitor is halted and the voltage to which the capacitor is charged is indicated on measuring device 22. When the measurement has been made valve 13a is opened which allows the globule to fall to the bottom of the tube and at the same time switch 19 is changed over and switch 21 is closed to discharge the capacitor in readiness for the next test. The apparatus is intended to detect fluid leakage from a first to a second chamber which second chamber has an outlet communicating with an inlet 10 extending into a limb of the U-tube 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB855872A GB1417161A (en) | 1972-02-24 | 1972-02-24 | Fluid flow measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB855872A GB1417161A (en) | 1972-02-24 | 1972-02-24 | Fluid flow measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1417161A true GB1417161A (en) | 1975-12-10 |
Family
ID=9854779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB855872A Expired GB1417161A (en) | 1972-02-24 | 1972-02-24 | Fluid flow measuring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1417161A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2029569A (en) * | 1978-09-07 | 1980-03-19 | Standard Telephones Cables Ltd | Fluid flowmeter |
| US4879907A (en) * | 1987-02-13 | 1989-11-14 | Humonics, Inc. | Soap film flowmeter |
| US5237856A (en) * | 1991-06-20 | 1993-08-24 | Expertek, Inc. | Bubble emission volume quantifier |
| US5337597A (en) * | 1991-06-20 | 1994-08-16 | Expertek | Bubble emission volume quantifier |
| CN111558351A (en) * | 2020-06-23 | 2020-08-21 | 湖北文理学院 | Device for controlling working circuit to be on or off at regular time through chemical reaction |
-
1972
- 1972-02-24 GB GB855872A patent/GB1417161A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2029569A (en) * | 1978-09-07 | 1980-03-19 | Standard Telephones Cables Ltd | Fluid flowmeter |
| GB2029569B (en) * | 1978-09-07 | 1983-03-09 | Standard Telephones Cables Ltd | Fluid flowmeter |
| US4879907A (en) * | 1987-02-13 | 1989-11-14 | Humonics, Inc. | Soap film flowmeter |
| US5237856A (en) * | 1991-06-20 | 1993-08-24 | Expertek, Inc. | Bubble emission volume quantifier |
| US5337597A (en) * | 1991-06-20 | 1994-08-16 | Expertek | Bubble emission volume quantifier |
| CN111558351A (en) * | 2020-06-23 | 2020-08-21 | 湖北文理学院 | Device for controlling working circuit to be on or off at regular time through chemical reaction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |