GB1534276A - Force transducers - Google Patents
Force transducersInfo
- Publication number
- GB1534276A GB1534276A GB446575A GB446575A GB1534276A GB 1534276 A GB1534276 A GB 1534276A GB 446575 A GB446575 A GB 446575A GB 446575 A GB446575 A GB 446575A GB 1534276 A GB1534276 A GB 1534276A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistors
- reduced thickness
- force
- parallel
- entrant portion
- 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
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
- G01L1/2231—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being disc- or ring-shaped, adapted for measuring a force along a single direction
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Force In General (AREA)
- Pressure Sensors (AREA)
Abstract
1534276 Force transducers EMI Ltd 2 Feb 1976 [1 Feb 1975 (2)] 4465/75 Heading G1N A force transducer includes a planar element in the form of a beam 6 with strain-sensing resistors 1-4 on its upper surface on reduced thickness portions 7, and having parallel limbs AD, BC and a re-entrant portion between them for application of a force at P, which portion projects into a central aperture. In use the beam is clamped along the edge AB and flexes substantially only in the portions 7 of reduced thickness (as shown in Fig. 2) where resistors 1, 2 are strained in the opposite sense to resistors 3, 4, these resistors being connected in a Wheatstone bridge circuit. In an alternative embodiment Piezo resistors 3-10 are provided on a semi-conductor beam 1 by differential doping. The beam is rigidly mounted along its edge AB and a force applied vertically downwards at P produces flexing at the reduced thickness areas 2 whereby resistors 5,6,7,8 are strained in the opposite sense to 3,4,9,10. In a further embodiment the parallel limbs and re-entrant portion each have four sections of reduced thickness and associated strain gauges, four gauges on each parallel limb and eight on the re-entrant portion, which is double the width of each parallel limb.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB446575A GB1534276A (en) | 1976-02-02 | 1976-02-02 | Force transducers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB446575A GB1534276A (en) | 1976-02-02 | 1976-02-02 | Force transducers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1534276A true GB1534276A (en) | 1978-11-29 |
Family
ID=9777702
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB446575A Expired GB1534276A (en) | 1976-02-02 | 1976-02-02 | Force transducers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1534276A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2127161A (en) * | 1982-09-03 | 1984-04-04 | Endress Hauser Gmbh Co | Transducer spring |
GB2128806A (en) * | 1982-09-29 | 1984-05-02 | Itt Ind Ltd | Pressure transducer |
EP0126566A2 (en) * | 1983-05-19 | 1984-11-28 | Toledo Scale Corporation | Load cell apparatus |
GB2178541A (en) * | 1985-06-24 | 1987-02-11 | Tricolor Corp | A weighing device |
US4809552A (en) * | 1987-11-23 | 1989-03-07 | Allied-Signal, Inc. | Multidirectional force-sensing transducer |
US4836025A (en) * | 1986-03-14 | 1989-06-06 | Nissan Motor Co., Ltd. | Accelerometer |
US4848157A (en) * | 1986-11-20 | 1989-07-18 | Aisin Seiki Kabushiki Kaisha | Acceleration detecting device |
US4926689A (en) * | 1986-08-25 | 1990-05-22 | Hanson Richard A | Proofmass suspension assembly for accelerometers |
US5042301A (en) * | 1986-08-25 | 1991-08-27 | Hanson Richard A | Pendulous assembly for use in an accelerometer |
US5081867A (en) * | 1988-09-30 | 1992-01-21 | Nec Corporation | Semiconductor sensor |
GB2489246A (en) * | 2011-03-22 | 2012-09-26 | Illinois Tool Works | Differential deflection measurement in structural members |
CN107718047A (en) * | 2017-08-21 | 2018-02-23 | 北京精密机电控制设备研究所 | Light-duty mechanical arm self-adaption two-dimensional force feedback wrist connector and sensor |
-
1976
- 1976-02-02 GB GB446575A patent/GB1534276A/en not_active Expired
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2127161A (en) * | 1982-09-03 | 1984-04-04 | Endress Hauser Gmbh Co | Transducer spring |
US4548086A (en) * | 1982-09-03 | 1985-10-22 | Endress U. Hauser Gmbh U. Co. | Deflecting spring |
GB2128806A (en) * | 1982-09-29 | 1984-05-02 | Itt Ind Ltd | Pressure transducer |
EP0126566A2 (en) * | 1983-05-19 | 1984-11-28 | Toledo Scale Corporation | Load cell apparatus |
EP0126566A3 (en) * | 1983-05-19 | 1985-09-18 | Reliance Electric Company | Load cell apparatus |
GB2178541B (en) * | 1985-06-24 | 1989-07-12 | Tricolor Corp | A weighing device |
GB2178541A (en) * | 1985-06-24 | 1987-02-11 | Tricolor Corp | A weighing device |
US4836025A (en) * | 1986-03-14 | 1989-06-06 | Nissan Motor Co., Ltd. | Accelerometer |
US4926689A (en) * | 1986-08-25 | 1990-05-22 | Hanson Richard A | Proofmass suspension assembly for accelerometers |
US4955233A (en) * | 1986-08-25 | 1990-09-11 | Hanson Richard A | Pendulous assembly for use in an accelerometer |
US5042301A (en) * | 1986-08-25 | 1991-08-27 | Hanson Richard A | Pendulous assembly for use in an accelerometer |
US4848157A (en) * | 1986-11-20 | 1989-07-18 | Aisin Seiki Kabushiki Kaisha | Acceleration detecting device |
US4809552A (en) * | 1987-11-23 | 1989-03-07 | Allied-Signal, Inc. | Multidirectional force-sensing transducer |
US5081867A (en) * | 1988-09-30 | 1992-01-21 | Nec Corporation | Semiconductor sensor |
GB2489246A (en) * | 2011-03-22 | 2012-09-26 | Illinois Tool Works | Differential deflection measurement in structural members |
GB2489246B (en) * | 2011-03-22 | 2015-10-28 | Illinois Tool Works | Differential deflection measurement in structural members |
US9234809B2 (en) | 2011-03-22 | 2016-01-12 | Illinois Tool Works Inc. | Differential deflection measurement in structural members |
CN107718047A (en) * | 2017-08-21 | 2018-02-23 | 北京精密机电控制设备研究所 | Light-duty mechanical arm self-adaption two-dimensional force feedback wrist connector and sensor |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |