BR7900425A - Transdutor de forca de cristal,de ressonancia simultanea em muitos modos - Google Patents
Transdutor de forca de cristal,de ressonancia simultanea em muitos modosInfo
- Publication number
- BR7900425A BR7900425A BR7900425A BR7900425A BR7900425A BR 7900425 A BR7900425 A BR 7900425A BR 7900425 A BR7900425 A BR 7900425A BR 7900425 A BR7900425 A BR 7900425A BR 7900425 A BR7900425 A BR 7900425A
- Authority
- BR
- Brazil
- Prior art keywords
- force transducer
- many modes
- simultaneous resonance
- crystal force
- crystal
- Prior art date
Links
- 239000013078 crystal Substances 0.000 title 1
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
- G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
- G01L1/162—Measuring force or stress, in general using properties of piezoelectric devices using piezoelectric resonators
-
- 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
- G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
- G01L9/0008—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations
- G01L9/0022—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a piezoelectric element
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S73/00—Measuring and testing
- Y10S73/04—Piezoelectric
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Measuring Fluid Pressure (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/873,459 US4144747A (en) | 1978-01-30 | 1978-01-30 | Simultaneously resonated, multi-mode crystal force transducer |
Publications (1)
Publication Number | Publication Date |
---|---|
BR7900425A true BR7900425A (pt) | 1979-08-21 |
Family
ID=25361680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR7900425A BR7900425A (pt) | 1978-01-30 | 1979-01-24 | Transdutor de forca de cristal,de ressonancia simultanea em muitos modos |
Country Status (10)
Country | Link |
---|---|
US (1) | US4144747A (pt) |
JP (1) | JPS54111387A (pt) |
AU (1) | AU4324179A (pt) |
BR (1) | BR7900425A (pt) |
CA (1) | CA1102928A (pt) |
DE (1) | DE2903489A1 (pt) |
FR (1) | FR2415881A1 (pt) |
GB (1) | GB2013342B (pt) |
IT (1) | IT1110377B (pt) |
SE (1) | SE7900765L (pt) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH639762A5 (fr) * | 1980-11-12 | 1983-11-30 | Centre Electron Horloger | Transducteur de pression a element vibrant. |
FR2531532A1 (fr) * | 1982-08-05 | 1984-02-10 | Flopetrol | Capteur piezo-electrique, notamment pour la mesure de pressions |
FR2531533A1 (fr) * | 1982-08-05 | 1984-02-10 | Flopetrol | Capteur piezo-electrique de pression et/ou de temperature |
US4467651A (en) * | 1983-01-06 | 1984-08-28 | Sundstrand Data Control, Inc. | Method for determining acceleration |
US4535638A (en) * | 1983-10-03 | 1985-08-20 | Quartztronics, Inc. | Resonator transducer system with temperature compensation |
US4525647A (en) * | 1983-12-02 | 1985-06-25 | Motorola, Inc. | Dual frequency, dual mode quartz resonator |
US4485323A (en) * | 1984-01-30 | 1984-11-27 | Corbett James P | Monolithic oscillating crystal transducer systems |
DE3777187D1 (en) * | 1987-11-09 | 1992-04-09 | Vibro Meter Ag | Accelerometer. |
US4930351A (en) * | 1988-03-24 | 1990-06-05 | Wjm Corporation | Vibratory linear acceleration and angular rate sensing system |
US4916350A (en) * | 1988-05-12 | 1990-04-10 | Madden Allan C | Sensor for detecting vibrations in a plane, particularly in a stringed musical instrument |
US4872343A (en) * | 1988-08-10 | 1989-10-10 | Sundstrand Data Control, Inc. | Matched pairs of force transducers |
FR2656929B1 (fr) * | 1990-01-11 | 1994-05-13 | Etat Francais Delegue Armement | Accelerometre differentiel a resonateurs piezoelectriques. |
US5112642A (en) * | 1990-03-30 | 1992-05-12 | Leybold Inficon, Inc. | Measuring and controlling deposition on a piezoelectric monitor crystal |
AU654138B2 (en) * | 1990-06-14 | 1994-10-27 | Lesbar Pty Limited | Micro Movement Detector |
US5442146A (en) * | 1992-04-03 | 1995-08-15 | Weigh-Tronix, Inc. | Counting scale and load cell assembly therefor |
US5336854A (en) * | 1992-04-03 | 1994-08-09 | Weigh-Tronix, Inc. | Electronic force sensing load cell |
US5313023A (en) * | 1992-04-03 | 1994-05-17 | Weigh-Tronix, Inc. | Load cell |
US5391844A (en) * | 1992-04-03 | 1995-02-21 | Weigh-Tronix Inc | Load cell |
JP2000180250A (ja) * | 1998-10-09 | 2000-06-30 | Ngk Insulators Ltd | 質量センサ及び質量検出方法 |
GB0102832D0 (en) * | 2001-02-05 | 2001-03-21 | Univ Newcastle Ventures Ltd | Resonant sensor |
US7021154B2 (en) * | 2002-09-24 | 2006-04-04 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Force sensing element |
US7002423B1 (en) * | 2004-07-20 | 2006-02-21 | Pericom Semiconductor Corp. | Crystal clock generator operating at third overtone of crystal's fundamental frequency |
US7663295B2 (en) * | 2005-12-15 | 2010-02-16 | Imec | Method and system for measuring physical parameters with a piezoelectric bimorph cantilever in a gaseous or liquid environment |
JP6098348B2 (ja) * | 2013-05-14 | 2017-03-22 | 富士通株式会社 | 差動出力型の発振器 |
JP6693285B2 (ja) | 2016-06-10 | 2020-05-13 | 富士通株式会社 | 水晶発振器及び水晶振動子の特性測定方法 |
JP6729019B2 (ja) | 2016-06-10 | 2020-07-22 | 富士通株式会社 | 水晶発振器及び水晶発振器制御方法 |
JP6724577B2 (ja) | 2016-06-10 | 2020-07-15 | 富士通株式会社 | 水晶発振器及び水晶振動子の特性測定方法 |
JP6680093B2 (ja) * | 2016-06-10 | 2020-04-15 | 富士通株式会社 | 水晶発振器及び水晶振動子の特性測定方法 |
JP6733332B2 (ja) | 2016-06-10 | 2020-07-29 | 富士通株式会社 | 水晶発振器及び水晶振動子の特性測定方法 |
JP6733331B2 (ja) | 2016-06-10 | 2020-07-29 | 富士通株式会社 | 水晶発振器 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3274828A (en) * | 1963-08-27 | 1966-09-27 | Charles F Pulvari | Force sensor |
US3826931A (en) * | 1967-10-26 | 1974-07-30 | Hewlett Packard Co | Dual crystal resonator apparatus |
US3617923A (en) * | 1969-11-06 | 1971-11-02 | Bell Telephone Labor Inc | Beat frequency generator using two oscillators controlled by a multiresonator crystal |
US3878477A (en) * | 1974-01-08 | 1975-04-15 | Hewlett Packard Co | Acoustic surface wave oscillator force-sensing devices |
CH589281A5 (pt) * | 1975-01-09 | 1977-06-30 | Centre Electron Horloger |
-
1978
- 1978-01-30 US US05/873,459 patent/US4144747A/en not_active Expired - Lifetime
- 1978-08-30 CA CA310,335A patent/CA1102928A/en not_active Expired
-
1979
- 1979-01-08 GB GB7900601A patent/GB2013342B/en not_active Expired
- 1979-01-10 AU AU43241/79A patent/AU4324179A/en not_active Abandoned
- 1979-01-12 FR FR7900703A patent/FR2415881A1/fr not_active Withdrawn
- 1979-01-24 BR BR7900425A patent/BR7900425A/pt unknown
- 1979-01-26 IT IT19634/79A patent/IT1110377B/it active
- 1979-01-29 SE SE7900765A patent/SE7900765L/xx unknown
- 1979-01-30 JP JP883579A patent/JPS54111387A/ja active Pending
- 1979-01-30 DE DE19792903489 patent/DE2903489A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE2903489A1 (de) | 1979-08-02 |
SE7900765L (sv) | 1979-07-31 |
IT1110377B (it) | 1985-12-23 |
IT7919634A0 (it) | 1979-01-26 |
JPS54111387A (en) | 1979-08-31 |
AU4324179A (en) | 1979-08-09 |
GB2013342A (en) | 1979-08-08 |
FR2415881A1 (fr) | 1979-08-24 |
US4144747A (en) | 1979-03-20 |
GB2013342B (en) | 1982-06-03 |
CA1102928A (en) | 1981-06-09 |
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