GB1195211A - Improvements in and relating to Pressure Measuring Apparatus. - Google Patents
Improvements in and relating to Pressure Measuring Apparatus.Info
- Publication number
- GB1195211A GB1195211A GB2057267A GB2057267A GB1195211A GB 1195211 A GB1195211 A GB 1195211A GB 2057267 A GB2057267 A GB 2057267A GB 2057267 A GB2057267 A GB 2057267A GB 1195211 A GB1195211 A GB 1195211A
- Authority
- GB
- United Kingdom
- Prior art keywords
- temperature
- manometer
- pressures
- arms
- measuring
- 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
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0091—Transmitting or indicating the displacement of liquid mediums by electrical, electromechanical, magnetic or electromagnetic means
- G01L9/0097—Transmitting or indicating the displacement of liquid mediums by electrical, electromechanical, magnetic or electromagnetic means using photoelectric means
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
1,195,211. Selective signalling. K. D. G. INSTRUMENTS Ltd. 3 May, 1968 [3 May, 1967], No. 20572/67. Heading G4H. The difference between two pressures is measured by gradually applying 16, 17, the pressures to the arms of a manometer 10 and by measuring the difference between the displacements of two mirrors 24, 25 on the surface of each column of liquid, e.g. mercury, by means of an electrical interferometer 21 which, by shining light, e.g. from a laser, via transparent sealing plugs 14, 15 down the two arms of the manometer, produces electrical pulses which are counted 27. Temperature compensation can be effected either by enclosing the whole unit in a temperature regulated box or by measuring the temperature of the manometer liquid by means of a float 32 in an additional tube 30, the depth of the float corresponding to temperature and being measured and used by the interferometer to provide a corrected output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2057267A GB1195211A (en) | 1967-05-03 | 1967-05-03 | Improvements in and relating to Pressure Measuring Apparatus. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2057267A GB1195211A (en) | 1967-05-03 | 1967-05-03 | Improvements in and relating to Pressure Measuring Apparatus. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1195211A true GB1195211A (en) | 1970-06-17 |
Family
ID=10148126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2057267A Expired GB1195211A (en) | 1967-05-03 | 1967-05-03 | Improvements in and relating to Pressure Measuring Apparatus. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1195211A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2186360A (en) * | 1986-02-07 | 1987-08-12 | Ford Motor Co | Stress transducer |
-
1967
- 1967-05-03 GB GB2057267A patent/GB1195211A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2186360A (en) * | 1986-02-07 | 1987-08-12 | Ford Motor Co | Stress transducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |