GB763226A - Improvements in electro-mechanical transducers - Google Patents
Improvements in electro-mechanical transducersInfo
- Publication number
- GB763226A GB763226A GB1569954A GB1569954A GB763226A GB 763226 A GB763226 A GB 763226A GB 1569954 A GB1569954 A GB 1569954A GB 1569954 A GB1569954 A GB 1569954A GB 763226 A GB763226 A GB 763226A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bimorph
- deflection
- proportional
- strain gauges
- electro
- 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
- 230000001133 acceleration Effects 0.000 abstract 2
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
- G01P15/13—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by measuring the force required to restore a proofmass subjected to inertial forces to a null position
- G01P15/133—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by measuring the force required to restore a proofmass subjected to inertial forces to a null position with piezoelectric counterbalancing means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
763,226. Electric measuring systems. SHORT BROS. & HARLAND, Ltd. May 25, 1955 [May 27, 1954], No. 15699/54. Class 40 (1). A piezo-electric bimorph 10 is clamped at one end 11 and used as a cantilever beam to measure vertical acceleration, the deflection at the free end being determined by strain gauges 12, 13 in a bridge circuit ABCD whose unbalance voltage is fed through an amplifier 15 and applied to the prepared surfaces of the bimorph by leads 16, 17 to reduce the deflection of the beam to substantially zero. The voltage applied to the bimorph is proportional to the suppressed deflection and therefore proportional to the acceleration. The strain gauges 12, 13 may be replaced by a differential capacitor. Specification 763,225 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1569954A GB763226A (en) | 1954-05-27 | 1954-05-27 | Improvements in electro-mechanical transducers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1569954A GB763226A (en) | 1954-05-27 | 1954-05-27 | Improvements in electro-mechanical transducers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB763226A true GB763226A (en) | 1956-12-12 |
Family
ID=10063882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1569954A Expired GB763226A (en) | 1954-05-27 | 1954-05-27 | Improvements in electro-mechanical transducers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB763226A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3113223A (en) * | 1960-07-27 | 1963-12-03 | Space Technology Lab Inc | Bender-type accelerometer |
| US3186237A (en) * | 1961-10-17 | 1965-06-01 | Litton Systems Inc | Piezoelectric transducer |
| US3258959A (en) * | 1963-10-14 | 1966-07-05 | Bell Aerospace Corp | Thrust measuring systems |
| FR2471578A1 (en) * | 1979-12-15 | 1981-06-19 | Philips Nv | SYSTEM FOR MEASURING SURFACE PROFILES |
| US4441044A (en) * | 1981-05-20 | 1984-04-03 | Hans List | Transducer with a piezoelectric sensor element |
| US4498342A (en) * | 1983-04-18 | 1985-02-12 | Honeywell Inc. | Integrated silicon accelerometer with stress-free rebalancing |
| US4872803A (en) * | 1983-11-30 | 1989-10-10 | Fujitsu Limited | Force controlling system |
-
1954
- 1954-05-27 GB GB1569954A patent/GB763226A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3113223A (en) * | 1960-07-27 | 1963-12-03 | Space Technology Lab Inc | Bender-type accelerometer |
| US3186237A (en) * | 1961-10-17 | 1965-06-01 | Litton Systems Inc | Piezoelectric transducer |
| US3258959A (en) * | 1963-10-14 | 1966-07-05 | Bell Aerospace Corp | Thrust measuring systems |
| FR2471578A1 (en) * | 1979-12-15 | 1981-06-19 | Philips Nv | SYSTEM FOR MEASURING SURFACE PROFILES |
| US4441044A (en) * | 1981-05-20 | 1984-04-03 | Hans List | Transducer with a piezoelectric sensor element |
| US4498342A (en) * | 1983-04-18 | 1985-02-12 | Honeywell Inc. | Integrated silicon accelerometer with stress-free rebalancing |
| US4872803A (en) * | 1983-11-30 | 1989-10-10 | Fujitsu Limited | Force controlling system |
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