JPS57187633A - Pressure converter - Google Patents
Pressure converterInfo
- Publication number
- JPS57187633A JPS57187633A JP7225681A JP7225681A JPS57187633A JP S57187633 A JPS57187633 A JP S57187633A JP 7225681 A JP7225681 A JP 7225681A JP 7225681 A JP7225681 A JP 7225681A JP S57187633 A JPS57187633 A JP S57187633A
- Authority
- JP
- Japan
- Prior art keywords
- resonator
- stress
- optical
- differential pressure
- pressure
- 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
- 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
- G01L11/02—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 optical means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
PURPOSE:To make it exact to form differential pressure through an optical resonator with a system that is simple optically and in construction by installing the optical resonator at a position where an optically transparent strain generating body has stress only in the circumferential direction. CONSTITUTION:Stress developed in a circular optically transparent strain generating body 5 due to differential pressure through a diaphragm 1, sealing liquid 11 such as silicone oil, etc. is transmitted to an optical resonator 6. Light polarized through wave length sweep laser 9, optical fiber cable 8, and a prism 3 is shined to this resonator 6. The light goes through the same optical system and a resonation wave length that corresponds to the differential pressure is detected by a detector 10 and the pressure is changed into resonation wave length and detected. When this resonator 6 is installed at the position 21 of the strain generating body in which stress Vr in the radial direction does not develop but only circumferential stress tauc develops, the difference of pressure is primarily converted without developing static pressure error due to non-linearity, and conversion of differential pressure is carried out exactly through a system that is optical and simple in construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7225681A JPS57187633A (en) | 1981-05-15 | 1981-05-15 | Pressure converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7225681A JPS57187633A (en) | 1981-05-15 | 1981-05-15 | Pressure converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57187633A true JPS57187633A (en) | 1982-11-18 |
| JPH0346772B2 JPH0346772B2 (en) | 1991-07-17 |
Family
ID=13484026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7225681A Granted JPS57187633A (en) | 1981-05-15 | 1981-05-15 | Pressure converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57187633A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1953515A2 (en) * | 2007-02-05 | 2008-08-06 | ABB S.p.A. | Pressure transmitter for detection of a variable relative to a process fluid. |
-
1981
- 1981-05-15 JP JP7225681A patent/JPS57187633A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1953515A2 (en) * | 2007-02-05 | 2008-08-06 | ABB S.p.A. | Pressure transmitter for detection of a variable relative to a process fluid. |
| EP1953515A3 (en) * | 2007-02-05 | 2009-11-25 | ABB S.p.A. | Pressure transmitter for detection of a variable relative to a process fluid. |
| US7859681B2 (en) | 2007-02-05 | 2010-12-28 | Abb S.P.A. | Pressure transmitter for detection of a variable relative to a process fluid |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0346772B2 (en) | 1991-07-17 |
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