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FR1202614A - Electromechanical transducer - Google Patents

Electromechanical transducer

Info

Publication number
FR1202614A
FR1202614A FR1202614DA FR1202614A FR 1202614 A FR1202614 A FR 1202614A FR 1202614D A FR1202614D A FR 1202614DA FR 1202614 A FR1202614 A FR 1202614A
Authority
FR
France
Prior art keywords
face
assembly
sept
mode
manner
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
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Clevite Corp
Original Assignee
Clevite Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Clevite Corp filed Critical Clevite Corp
Application granted granted Critical
Publication of FR1202614A publication Critical patent/FR1202614A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
    • G01C19/56—Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces
    • G01C19/5642—Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using vibrating bars or beams
    • 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
    • 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
    • H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R17/08—Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Gyroscopes (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

868,148. Measuring electrically. CLEVITE CORPORATION. Sept. 16, 1958 [Sept. 16, 1957], No. 29601/58. Class 40 (1). [Also in Groups XXXIX and XL (b)] The transducing element of an instrument for measuring rate of turn (angular acceleration) by electrical means comprises a piezo-electric bimorph. The bimorph consists of two rectangular plates 10, 12, one responsive in a face shear mode and the other in an axial extensional mode. They are provided with separate pairs of electrodes on their major faces and are cemented together face to face in such a manner that one plate responds to flexure of the assembly and the other to torsion (see Group XL (b)). Thus, if the assembly is rigidly mounted at one end upon a base 48 and the base is rotated about the axis Z, any change in angular velocity will result in twisting of the element and an output proportional to the degree of twist will be obtained from the face-shear plate 12. In the embodiment shown, the sensitivity is increased by applying an A.C. signal to the expanding element 10 in such a manner that the assembly vibrates in a bending mode at its resonant frequency. The output measured by the meter 52 will then be an alternating potential.
FR1202614D 1958-09-30 1958-09-16 Electromechanical transducer Expired FR1202614A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH6450458A CH365891A (en) 1958-09-30 1958-09-30 Electromechanical converter

Publications (1)

Publication Number Publication Date
FR1202614A true FR1202614A (en) 1960-01-12

Family

ID=4525701

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1202614D Expired FR1202614A (en) 1958-09-30 1958-09-16 Electromechanical transducer

Country Status (4)

Country Link
BE (1) BE571647A (en)
CH (1) CH365891A (en)
FR (1) FR1202614A (en)
GB (1) GB868148A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453565A1 (en) * 1975-10-14 1980-10-31 Sony Corp INSTALLATION OF REPRODUCTION OF VIDEO SIGNALS
WO1985004722A1 (en) * 1984-04-04 1985-10-24 Syrinx Innovations Limited Acceleration sensor
EP0685704A1 (en) * 1994-06-03 1995-12-06 Murata Manufacturing Co., Ltd. Vibrating gyroscope

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5963782A (en) * 1982-10-05 1984-04-11 Tohoku Metal Ind Ltd Piezoelectric bimorph element
JPS63238503A (en) * 1987-03-27 1988-10-04 Jeol Ltd Chip scanning device in scanning tunneling microscope

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453565A1 (en) * 1975-10-14 1980-10-31 Sony Corp INSTALLATION OF REPRODUCTION OF VIDEO SIGNALS
WO1985004722A1 (en) * 1984-04-04 1985-10-24 Syrinx Innovations Limited Acceleration sensor
EP0685704A1 (en) * 1994-06-03 1995-12-06 Murata Manufacturing Co., Ltd. Vibrating gyroscope

Also Published As

Publication number Publication date
CH365891A (en) 1962-11-30
BE571647A (en) 1958-10-15
GB868148A (en) 1961-05-17

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