GB1482494A - Pressure transducers - Google Patents
Pressure transducersInfo
- Publication number
- GB1482494A GB1482494A GB3326775A GB3326775A GB1482494A GB 1482494 A GB1482494 A GB 1482494A GB 3326775 A GB3326775 A GB 3326775A GB 3326775 A GB3326775 A GB 3326775A GB 1482494 A GB1482494 A GB 1482494A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- diaphragm
- clamped
- shoulder
- terminal board
- 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
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/0051—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
1482494 Measuring pressure electrically TYCO LABORATORIES Inc 8 Aug 1975 33267/75 Heading G1N [Also in Division H1] A pressure transducer of the type utilizing variation in resistance in response to strain comprises a strain-sensing element 36 preferably in a wheatstone bridge arrangement of electrical resistances 49, 51, 53, 55, Fig. 5, the element being bonded to a diaphragm 23 of e.g. stainless steel, quartz, sapphire which is clamped between an internal shoulder (24), Fig. 2 (not shown) and a flange 20, Fig. 1, of a fitting 12 by bending the wall of one end of a hollow case 22, and a terminal board 26 having conductive tracks (54 a-d), Fig. 4 (not shown) electrically connected to the wheatstone bridge, the board being clamped at the other end of the case between the internal shoulder (24) and a wall portion 32. The resistors 49-55 which are preferably encapsulated, and conductive tracks 46 a-d are formed of e.g. copper-nickel, nickelchromium alloy on a flexible carrier 38 made of polyimides or nitrocellulose paper by known printed circuit techniques, and as shown in Fig. 1, the tabs 42 are clamped between the terminal board and the shoulder (24) so that they are in pressurized contact with aligned tracks (54 a-d). The central position 40 of the carrier 38 and the tabs 42 are bonded respectively to the diaphragm and the shoulder (24) using an epoxy-phenolic adhesive which is heat cured under pressure either before the terminal board is clamped in position or after the transducer is completely assembled, a rubber block 58 being provided to uniformly distribute the pressure during the curing step. Vents 62 or (66), Fig. 2 (not shown), are provided to maintain one side of the diaphragm at ambient pressure, whereas the other side of the diaphragm is exposed via a passageway 16 to a fluid whose pressure is to be measured.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3326775A GB1482494A (en) | 1975-08-08 | 1975-08-08 | Pressure transducers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3326775A GB1482494A (en) | 1975-08-08 | 1975-08-08 | Pressure transducers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1482494A true GB1482494A (en) | 1977-08-10 |
Family
ID=10350720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3326775A Expired GB1482494A (en) | 1975-08-08 | 1975-08-08 | Pressure transducers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1482494A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2148008A (en) * | 1983-10-12 | 1985-05-22 | Prutec Ltd | Casing for pressure transducer |
FR2823564A1 (en) * | 2001-04-11 | 2002-10-18 | Denso Corp | PRESSURE SENSOR USING AN ADHESIVE RESIN ARRANGED BETWEEN DETECTION ELEMENT AND ROD |
CN104126107A (en) * | 2012-02-09 | 2014-10-29 | 富士电机株式会社 | Physical quantity sensor and method for manufacturing physical quantity sensor |
WO2015117149A1 (en) * | 2014-02-03 | 2015-08-06 | Aps Technology, Inc. | Strain sensor assembly |
-
1975
- 1975-08-08 GB GB3326775A patent/GB1482494A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2148008A (en) * | 1983-10-12 | 1985-05-22 | Prutec Ltd | Casing for pressure transducer |
FR2823564A1 (en) * | 2001-04-11 | 2002-10-18 | Denso Corp | PRESSURE SENSOR USING AN ADHESIVE RESIN ARRANGED BETWEEN DETECTION ELEMENT AND ROD |
CN104126107A (en) * | 2012-02-09 | 2014-10-29 | 富士电机株式会社 | Physical quantity sensor and method for manufacturing physical quantity sensor |
CN104126107B (en) * | 2012-02-09 | 2016-08-24 | 富士电机株式会社 | Physical quantity transducer and the manufacture method of physical quantity transducer |
US9874487B2 (en) | 2012-02-09 | 2018-01-23 | Fuji Electric Co., Ltd. | Physical quantity sensor and method of manufacturing physical quantity sensor |
WO2015117149A1 (en) * | 2014-02-03 | 2015-08-06 | Aps Technology, Inc. | Strain sensor assembly |
US9927310B2 (en) | 2014-02-03 | 2018-03-27 | Aps Technology, Inc. | Strain sensor assembly |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3418850A (en) | Device for measuring the pressure between two surfaces at least one of which is a roll | |
ATE62345T1 (en) | DISPOSABLE TRANSDUCER DEVICE FOR AN ELECTRICAL PRESSURE GAUGE SYSTEM. | |
US4500864A (en) | Pressure sensor | |
GB1404016A (en) | Pressure transducer | |
US3270554A (en) | Diffused layer transducers | |
ES8103375A1 (en) | Device for pressure measurement using a resistor strain gauge | |
US3149488A (en) | Strain gauge measuring apparatus | |
ATE84145T1 (en) | PRESSURE SENSOR WITH CONDUCTIVE POLYMER MEASURING BRIDGE. | |
JPH0621832B2 (en) | Double diaphragm differential pressure transducer | |
US5303593A (en) | Strain gauge distribution for resistive strain gauge pressure sensor | |
US2599578A (en) | Device for measuring the change of strain in a solid medium | |
US3230763A (en) | Semiconductor pressure diaphragm | |
US5317920A (en) | Resistive strain gauge pressure sensor with increased sensitivity | |
GB1482494A (en) | Pressure transducers | |
US3935636A (en) | Method of making a pressure transducer | |
GB910977A (en) | Pressure responsive devices | |
JPS6090696A (en) | Pressure-sensitive sensor | |
US5224384A (en) | Resistive strain gauge pressure sensor | |
JPH0252972B2 (en) | ||
CN203396534U (en) | Pressure transducer | |
GB1395242A (en) | Vacuum gauges | |
ES2005829A6 (en) | Interface circuit between a sensor, particularly a thick film pressure sensor, and an electrodynamic instrument, and a sensor incorporating such a circuit. | |
GB1362616A (en) | Semiconductor strain measuring device | |
SU488100A1 (en) | Force measuring device | |
JPS5759389A (en) | Semiconductor strain gauge type pressure sensor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |