GB2012053A - Calibrating fluid pressure transducer - Google Patents
Calibrating fluid pressure transducerInfo
- Publication number
- GB2012053A GB2012053A GB7846803A GB7846803A GB2012053A GB 2012053 A GB2012053 A GB 2012053A GB 7846803 A GB7846803 A GB 7846803A GB 7846803 A GB7846803 A GB 7846803A GB 2012053 A GB2012053 A GB 2012053A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diaphragm
- oil
- pressure change
- magnetic field
- transducer
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
- G01L27/005—Apparatus for calibrating pressure sensors
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The transducer 3 is immersed in a low-compressibility oil 2 filling a sealed container 1 having a wall 4 formed as an electrically conducting diaphragm. Diaphragm 4 forms part of the single- turn secondary winding of a transformer whose primary winding 5 is energised from a charged capacitor 6. The current flowing in diaphragm 4 interacts with its associated magnetic field to deflect the diaphragm, causing a pressure change in the oil. The pressure change is proportional to the square of the magnetic field strength at the side of the diaphragm remote from the oil, where the magnetic field is contained by the diaphragm. This field, i.e. the field between the two windings, is measured by a pick-up coil 8, whose output is processed to produce a signal, proportional to the pressure change in the oil, which is compared at 10 with the output from the transducer 3. <IMAGE>
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7846803A GB2012053B (en) | 1977-12-22 | 1978-12-01 | Methdos and apparatus for calibrating pressure transducers |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5360077 | 1977-12-22 | ||
| GB7846803A GB2012053B (en) | 1977-12-22 | 1978-12-01 | Methdos and apparatus for calibrating pressure transducers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2012053A true GB2012053A (en) | 1979-07-18 |
| GB2012053B GB2012053B (en) | 1982-04-15 |
Family
ID=26267298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7846803A Expired GB2012053B (en) | 1977-12-22 | 1978-12-01 | Methdos and apparatus for calibrating pressure transducers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2012053B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0512794A2 (en) * | 1991-05-06 | 1992-11-11 | General Electric Company | Apparatus and method for in situ evaluation of capacitive type pressure transducers in a nuclear power plant |
| CN112415228A (en) * | 2020-11-18 | 2021-02-26 | 中国航空工业集团公司北京长城计量测试技术研究所 | Step acceleration calibrating device based on shock tube |
-
1978
- 1978-12-01 GB GB7846803A patent/GB2012053B/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0512794A2 (en) * | 1991-05-06 | 1992-11-11 | General Electric Company | Apparatus and method for in situ evaluation of capacitive type pressure transducers in a nuclear power plant |
| EP0512794A3 (en) * | 1991-05-06 | 1993-06-09 | General Electric Company | Apparatus and method for in situ evaluation of capacitive type pressure transducers in a nuclear power plant |
| CN112415228A (en) * | 2020-11-18 | 2021-02-26 | 中国航空工业集团公司北京长城计量测试技术研究所 | Step acceleration calibrating device based on shock tube |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2012053B (en) | 1982-04-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |