GB1276294A - Vibratory transducer - Google Patents
Vibratory transducerInfo
- Publication number
- GB1276294A GB1276294A GB2483968A GB2483968A GB1276294A GB 1276294 A GB1276294 A GB 1276294A GB 2483968 A GB2483968 A GB 2483968A GB 2483968 A GB2483968 A GB 2483968A GB 1276294 A GB1276294 A GB 1276294A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- contact
- pressure
- oscillator
- increase
- 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
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
- G01L11/004—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by the use of counterbalancing forces
- G01L11/008—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by the use of counterbalancing forces electrostatic or electromagnetic counterbalancing forces
-
- 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
- G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
- G01L9/0008—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations
- G01L9/0016—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a diaphragm
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
1276294 Measuring fluid-pressure electrically DEFENCE SECRETARY OF STATE FOR 25 Aug 1969 [24 May 1968] 24839/68 Heading G1N A transducer for measuring fluid-pressure comprises a diaphragm 13, Fig. 1, exposed on its upper face to the test pressure and attached on its lower face to a moving coil 20 in the gap of a permanent magnet 22, 22a and also to a moving contact 24 co-operating with a spring-biased fixed contact 25. The coil 20 is energized via contacts 24, 25 causing the coil to raise contact 24 until the arm carrying contact 25 meets a fixed stop 26, whereupon the circuit is broken and contact 24 is again forced down to a position partly determined by the test pressure. Thus the mark/space ratio of the current through contacts 24, 25 is indicative of the pressure, which is measured by the average current through coil 20 or by controlling a separate oscillator 32. In another embodiment, Fig.3, the coil 20 is energized from the oscillator 32. An increase in test pressure causes the mark/space ratio of the output from the oscillator 32 to increase and the average current through coil 20 to increase to a value maintaining the mean position of the moving system substantially constant. In an alternative arrangement the moving system including coil 20 is replaced by a variable reactance forming part of a non-contact-making switching means replacing contacts 24, 25.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2483968A GB1276294A (en) | 1968-05-24 | 1968-05-24 | Vibratory transducer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2483968A GB1276294A (en) | 1968-05-24 | 1968-05-24 | Vibratory transducer |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1276294A true GB1276294A (en) | 1972-06-01 |
Family
ID=10218060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2483968A Expired GB1276294A (en) | 1968-05-24 | 1968-05-24 | Vibratory transducer |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1276294A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2391460A1 (en) * | 1977-05-16 | 1978-12-15 | Sperry Rand Corp | PRESSURE TRANSDUCER MANOMETER |
GB2150294A (en) * | 1983-11-16 | 1985-06-26 | Schlumberger Electronics | Pressure monitoring |
-
1968
- 1968-05-24 GB GB2483968A patent/GB1276294A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2391460A1 (en) * | 1977-05-16 | 1978-12-15 | Sperry Rand Corp | PRESSURE TRANSDUCER MANOMETER |
GB2150294A (en) * | 1983-11-16 | 1985-06-26 | Schlumberger Electronics | Pressure monitoring |
US4663965A (en) * | 1983-11-16 | 1987-05-12 | Eric Metcalf | Pressure monitoring |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CSNS | Application of which complete specification have been accepted and published, but patent is not sealed |