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GB2262342B - - Google Patents

Info

Publication number
GB2262342B
GB2262342B GB9301203A GB9301203A GB2262342B GB 2262342 B GB2262342 B GB 2262342B GB 9301203 A GB9301203 A GB 9301203A GB 9301203 A GB9301203 A GB 9301203A GB 2262342 B GB2262342 B GB 2262342B
Authority
GB
United Kingdom
Prior art keywords
support members
vibrator
supported
image
rotational force
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 - Lifetime
Application number
GB9301203A
Other versions
GB9301203D0 (en
GB2262342A (en
Inventor
Takeshi Nakamura
Keiichi Okana
Yoshiko Morishita
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
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
Priority claimed from JP20238588A external-priority patent/JPH063454B2/en
Priority claimed from JP4480789A external-priority patent/JP2536132B2/en
Priority claimed from JP4480689A external-priority patent/JPH0695099B2/en
Priority claimed from JP8939889A external-priority patent/JP2531021B2/en
Priority claimed from JP8939789A external-priority patent/JPH063455B2/en
Priority claimed from JP1089396A external-priority patent/JP2748145B2/en
Priority claimed from JP11543789A external-priority patent/JP2652704B2/en
Priority claimed from JP11543689A external-priority patent/JP2508264B2/en
Priority claimed from JP14777989A external-priority patent/JP2531266B2/en
Priority claimed from JP14778289A external-priority patent/JP2741620B2/en
Priority claimed from GB8918103A external-priority patent/GB2223309B/en
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Publication of GB9301203D0 publication Critical patent/GB9301203D0/en
Publication of GB2262342A publication Critical patent/GB2262342A/en
Publication of GB2262342B publication Critical patent/GB2262342B/en
Application granted granted Critical
Granted 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
    • 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
    • G01C19/5663—Manufacturing; Trimming; Mounting; Housings
    • 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
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • G10K11/04—Acoustic filters ; Acoustic resonators

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
  • Gyroscopes (AREA)

Abstract

A vibrator, 14, having a polygonal section is supported by two support members 24a, 24b mounted at or near the nodal points of the body, said support members being equally spaced from the ends of the body e.g. at a distance 0.224 x the length of the body in the case of the figure shown. The body having associated with it piezo electric elements 16 for maintaining vibration and or measuring deflection due to a rotational force. <IMAGE>
GB9301203A 1988-08-12 1993-01-22 A vibrator for use in a vibratory gyroscope Granted GB2262342A (en)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
JP20238588A JPH063454B2 (en) 1988-08-12 1988-08-12 Vibrating gyro
JP4480789A JP2536132B2 (en) 1989-02-25 1989-02-25 Oscillator circuit
JP4480689A JPH0695099B2 (en) 1989-02-25 1989-02-25 Vibrating gyro
JP1089396A JP2748145B2 (en) 1989-04-06 1989-04-06 Differential amplifier circuit
JP8939789A JPH063455B2 (en) 1989-04-06 1989-04-06 Vibrating gyro
JP8939889A JP2531021B2 (en) 1989-04-06 1989-04-06 Oscillator
JP11543689A JP2508264B2 (en) 1989-05-08 1989-05-08 Vibrating gyro
JP11543789A JP2652704B2 (en) 1989-05-08 1989-05-08 Vibrator
JP14777989A JP2531266B2 (en) 1989-06-09 1989-06-09 Vibrator support structure
JP14778289A JP2741620B2 (en) 1989-06-09 1989-06-09 Vibrator support structure
GB8918103A GB2223309B (en) 1988-08-12 1989-08-08 Vibrator and vibratory gyroscope using the same

Publications (3)

Publication Number Publication Date
GB9301203D0 GB9301203D0 (en) 1993-03-17
GB2262342A GB2262342A (en) 1993-06-16
GB2262342B true GB2262342B (en) 1993-08-25

Family

ID=27581663

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9301204A Granted GB2262343A (en) 1988-08-12 1993-01-22 A vibrator for use in a vibratory gyroscope
GB9301203A Granted GB2262342A (en) 1988-08-12 1993-01-22 A vibrator for use in a vibratory gyroscope

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9301204A Granted GB2262343A (en) 1988-08-12 1993-01-22 A vibrator for use in a vibratory gyroscope

Country Status (1)

Country Link
GB (2) GB2262343A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3239542B2 (en) * 1993-06-21 2001-12-17 株式会社村田製作所 Vibratory gyroscope adjustment device
JP3175489B2 (en) * 1994-08-24 2001-06-11 三菱電機株式会社 Vibrating gyroscope and vibrating gyroscope inspection device
JP2000088578A (en) * 1998-09-10 2000-03-31 Matsushita Electric Ind Co Ltd Angular speed sensor

Also Published As

Publication number Publication date
GB9301204D0 (en) 1993-03-17
GB9301203D0 (en) 1993-03-17
GB2262343A (en) 1993-06-16
GB2262342A (en) 1993-06-16
GB2262343B (en) 1993-08-25

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