GB603354A - Piezo-electric devices - Google Patents
Piezo-electric devicesInfo
- Publication number
- GB603354A GB603354A GB27372/45A GB2737245A GB603354A GB 603354 A GB603354 A GB 603354A GB 27372/45 A GB27372/45 A GB 27372/45A GB 2737245 A GB2737245 A GB 2737245A GB 603354 A GB603354 A GB 603354A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crystal
- diaphragm
- diaphragms
- diagonal
- slab
- 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
- 239000013078 crystal Substances 0.000 abstract 8
- LJCNRYVRMXRIQR-OLXYHTOASA-L potassium sodium L-tartrate Chemical compound [Na+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O LJCNRYVRMXRIQR-OLXYHTOASA-L 0.000 abstract 2
- 235000011006 sodium potassium tartrate Nutrition 0.000 abstract 2
- 239000000020 Nitrocellulose Substances 0.000 abstract 1
- 239000004793 Polystyrene Substances 0.000 abstract 1
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 abstract 1
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 239000011888 foil Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910001092 metal group alloy Inorganic materials 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 229920001220 nitrocellulos Polymers 0.000 abstract 1
- 229920002223 polystyrene Polymers 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 229920003002 synthetic resin Polymers 0.000 abstract 1
- 239000000057 synthetic resin Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
- H02N2/04—Constructional details
- H02N2/043—Mechanical transmission means, e.g. for stroke amplification
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/42—Piezoelectric device making
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
603,354. Sound emitting and receiving devices. TIBBETTS, G. C. Oct. 18, 1945, No. 27372. [Class 40 (iv)] [Also in Group XL (c)] A piezo-electric device comprises a slab which expands in one flatwise direction when subjected to electrostatic forces, a flexible member extending along one side of the device and means interconnecting the slab and member at the periphery of the slab, the member being arched in said direction so that it tends to straighten when the slab expands, The crystal element 1 comprises a plate of Rochelle salt cut with its major plane at right angles to the electric axis and the major edges parallel to the optic and mechanical axes. The element 1 thus expands and contracts along its diagonals. The element is provided on its major faces with electrode foils and lead extensions 3 and is then cemented at the periphery to two diaphragms 4 arranged on on each surface. The diaphragms are made of material having a good modulus of elasticity and a coefficient of expansion the same as Rochelle salt, such as synthetic resin with or without metal powder amber or special metallic alloy. Each diaphragm is thickened peripherally at the one pair of opposite corners 6 so that one diagonal of the diaphragm is arched away from the crystal plate and the other diagonal is arched towards the crystal, as shown in the two diagonal sections, Figs. 5 and 6. Since due to piezo-electric effect, one diagonal of the crystal expands when the other diagonal contracts, this form of diaphragm gives the desired mechanical coupling to the crystal. In the form shown in Figs. 5 and 6, the diaphragms are intended to move simultaneously towards or away from the crystal. In Fig. 9, the diaphragms 4 move simultaneously in the same direction, being connected to a rod. 7 passing through the crystal. Thus one of the diaphragms is turned through 90 degrees relative to the other so that they both operate on the crystal in the same sense. The rod 7 may be connected to a phonograph stylus, a microphone diaphragm or a sound reproducing diaphragm. The device is mounted on rubber feet 10. Fig. 11 shows a unit 1, 4 as in Fig. 5 mounted between two microphone diaphragms 9 and actuated by rods 11. Alternatively, the lower diaphragm 9 may be omitted in which case the unit is mounted between an upper diaphragm and the bottom of a cup-shaped casing, Figs. 12 and 13 (not shown). This modification may be used as a hearing aid. Fig. 17 shows two identical units 34 as in Fig. 5 turned through 90 degrees with respect to each other about the vertical axis, and supported from posts 32 by gauze rings 36. The units are connected so that the output voltages produced by sound waves are additive. Then voltages due to mechanical shocks tend to cancel out, The units may have a circular periphery, Figs. 14, 15 (not shown), and may be waterproofed by coating with cellulose nitrate and then with polystyrene.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US570361A US2403692A (en) | 1944-12-29 | 1944-12-29 | Piezoelectric device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB603354A true GB603354A (en) | 1948-06-15 |
Family
ID=24279351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27372/45A Expired GB603354A (en) | 1944-12-29 | 1945-10-18 | Piezo-electric devices |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2403692A (en) |
| CH (1) | CH272165A (en) |
| GB (1) | GB603354A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2312809A (en) * | 1996-05-02 | 1997-11-05 | Nec Corp | Piezoelectric acoustic transducer |
| CN117890050A (en) * | 2024-03-15 | 2024-04-16 | 中北大学 | Self-driven composite multi-source vibration sensor suitable for aircraft |
Families Citing this family (52)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2810082A (en) * | 1954-10-29 | 1957-10-15 | Tibbetts Lab Inc | Transducer damping |
| US2877362A (en) * | 1954-10-29 | 1959-03-10 | Tibbetts Lab Inc | Transducer sealing |
| US2912605A (en) * | 1955-12-05 | 1959-11-10 | Tibbetts Lab Inc | Electromechanical transducer |
| US2895062A (en) * | 1955-12-22 | 1959-07-14 | Frank R Abbott | Broad band electroacoustic transducer |
| US2836738A (en) * | 1956-05-02 | 1958-05-27 | Joseph W Crownover | Prestressed piezo crystal |
| US3414689A (en) * | 1965-06-28 | 1968-12-03 | Bell Telephone Labor Inc | Shock-mounting for electromechanical transducer |
| US3558936A (en) * | 1967-07-19 | 1971-01-26 | John J Horan | Resonant energy-conversion system |
| US3585416A (en) * | 1969-10-07 | 1971-06-15 | Howard G Mellen | Photopiezoelectric transducer |
| US3697790A (en) * | 1970-12-02 | 1972-10-10 | William T Flint | Transducers having piezoelectric struts |
| US5729077A (en) * | 1995-12-15 | 1998-03-17 | The Penn State Research Foundation | Metal-electroactive ceramic composite transducer |
| US6232702B1 (en) | 1998-08-18 | 2001-05-15 | The Penn State Research Foundation | Flextensional metal-ceramic composite transducer |
| US6215221B1 (en) * | 1998-12-29 | 2001-04-10 | Honeywell International Inc. | Electrostatic/pneumatic actuators for active surfaces |
| US6568286B1 (en) | 2000-06-02 | 2003-05-27 | Honeywell International Inc. | 3D array of integrated cells for the sampling and detection of air bound chemical and biological species |
| US7420659B1 (en) | 2000-06-02 | 2008-09-02 | Honeywell Interantional Inc. | Flow control system of a cartridge |
| US6837476B2 (en) | 2002-06-19 | 2005-01-04 | Honeywell International Inc. | Electrostatically actuated valve |
| US7000330B2 (en) * | 2002-08-21 | 2006-02-21 | Honeywell International Inc. | Method and apparatus for receiving a removable media member |
| US6729856B2 (en) | 2001-10-09 | 2004-05-04 | Honeywell International Inc. | Electrostatically actuated pump with elastic restoring forces |
| SE0203818D0 (en) * | 2002-12-19 | 2002-12-19 | Abb Ab | Converter |
| US20060134510A1 (en) * | 2004-12-21 | 2006-06-22 | Cleopatra Cabuz | Air cell air flow control system and method |
| US7222639B2 (en) * | 2004-12-29 | 2007-05-29 | Honeywell International Inc. | Electrostatically actuated gas valve |
| US7328882B2 (en) * | 2005-01-06 | 2008-02-12 | Honeywell International Inc. | Microfluidic modulating valve |
| US7445017B2 (en) * | 2005-01-28 | 2008-11-04 | Honeywell International Inc. | Mesovalve modulator |
| US7320338B2 (en) * | 2005-06-03 | 2008-01-22 | Honeywell International Inc. | Microvalve package assembly |
| US7517201B2 (en) * | 2005-07-14 | 2009-04-14 | Honeywell International Inc. | Asymmetric dual diaphragm pump |
| US20070051415A1 (en) * | 2005-09-07 | 2007-03-08 | Honeywell International Inc. | Microvalve switching array |
| US7624755B2 (en) * | 2005-12-09 | 2009-12-01 | Honeywell International Inc. | Gas valve with overtravel |
| US7523762B2 (en) * | 2006-03-22 | 2009-04-28 | Honeywell International Inc. | Modulating gas valves and systems |
| US8007704B2 (en) * | 2006-07-20 | 2011-08-30 | Honeywell International Inc. | Insert molded actuator components |
| US20080099082A1 (en) * | 2006-10-27 | 2008-05-01 | Honeywell International Inc. | Gas valve shutoff seal |
| US7644731B2 (en) * | 2006-11-30 | 2010-01-12 | Honeywell International Inc. | Gas valve with resilient seat |
| US7766037B2 (en) * | 2007-07-25 | 2010-08-03 | Honeywell International, Inc. | Adjustable shutoff valve |
| US9851103B2 (en) | 2011-12-15 | 2017-12-26 | Honeywell International Inc. | Gas valve with overpressure diagnostics |
| US9835265B2 (en) | 2011-12-15 | 2017-12-05 | Honeywell International Inc. | Valve with actuator diagnostics |
| US9557059B2 (en) | 2011-12-15 | 2017-01-31 | Honeywell International Inc | Gas valve with communication link |
| US8947242B2 (en) | 2011-12-15 | 2015-02-03 | Honeywell International Inc. | Gas valve with valve leakage test |
| US9995486B2 (en) | 2011-12-15 | 2018-06-12 | Honeywell International Inc. | Gas valve with high/low gas pressure detection |
| US8839815B2 (en) | 2011-12-15 | 2014-09-23 | Honeywell International Inc. | Gas valve with electronic cycle counter |
| US9846440B2 (en) | 2011-12-15 | 2017-12-19 | Honeywell International Inc. | Valve controller configured to estimate fuel comsumption |
| US8899264B2 (en) | 2011-12-15 | 2014-12-02 | Honeywell International Inc. | Gas valve with electronic proof of closure system |
| US8905063B2 (en) | 2011-12-15 | 2014-12-09 | Honeywell International Inc. | Gas valve with fuel rate monitor |
| US9074770B2 (en) | 2011-12-15 | 2015-07-07 | Honeywell International Inc. | Gas valve with electronic valve proving system |
| US9234661B2 (en) | 2012-09-15 | 2016-01-12 | Honeywell International Inc. | Burner control system |
| US10422531B2 (en) | 2012-09-15 | 2019-09-24 | Honeywell International Inc. | System and approach for controlling a combustion chamber |
| EP2868970B1 (en) | 2013-10-29 | 2020-04-22 | Honeywell Technologies Sarl | Regulating device |
| US10024439B2 (en) | 2013-12-16 | 2018-07-17 | Honeywell International Inc. | Valve over-travel mechanism |
| EP3090427B1 (en) * | 2013-12-30 | 2022-11-02 | Photosonix Medical, Inc. | Flextensional transducer and related method |
| US9841122B2 (en) | 2014-09-09 | 2017-12-12 | Honeywell International Inc. | Gas valve with electronic valve proving system |
| US9645584B2 (en) | 2014-09-17 | 2017-05-09 | Honeywell International Inc. | Gas valve with electronic health monitoring |
| US10503181B2 (en) | 2016-01-13 | 2019-12-10 | Honeywell International Inc. | Pressure regulator |
| US10564062B2 (en) | 2016-10-19 | 2020-02-18 | Honeywell International Inc. | Human-machine interface for gas valve |
| US11073281B2 (en) | 2017-12-29 | 2021-07-27 | Honeywell International Inc. | Closed-loop programming and control of a combustion appliance |
| US10697815B2 (en) | 2018-06-09 | 2020-06-30 | Honeywell International Inc. | System and methods for mitigating condensation in a sensor module |
-
1944
- 1944-12-29 US US570361A patent/US2403692A/en not_active Expired - Lifetime
-
1945
- 1945-10-18 GB GB27372/45A patent/GB603354A/en not_active Expired
-
1947
- 1947-05-21 CH CH272165D patent/CH272165A/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2312809A (en) * | 1996-05-02 | 1997-11-05 | Nec Corp | Piezoelectric acoustic transducer |
| US5856956A (en) * | 1996-05-02 | 1999-01-05 | Nec Corporation | Piezoelectric acoustic transducer |
| GB2312809B (en) * | 1996-05-02 | 2000-04-19 | Nec Corp | Piezoelectric Acoustic Transducer |
| CN117890050A (en) * | 2024-03-15 | 2024-04-16 | 中北大学 | Self-driven composite multi-source vibration sensor suitable for aircraft |
Also Published As
| Publication number | Publication date |
|---|---|
| CH272165A (en) | 1950-11-30 |
| US2403692A (en) | 1946-07-09 |
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