SENSOR ELEMENT AND ANGULAR VELOCITY SENSORIn a sensor element, a frame has an x-axis direction as a longitudinal direction. Two driving arms extend from the frame alongside each other in a y-axis direction. A detecting arm extends from the fr…DRIVE·Sep 13·2 min readFollowG01C19/5607KYOCERA CORP [JP]
METHOD AND SYSTEM FOR CONTROL AND READOUT OF TUNING FORK GYROSCOPEA tuning fork sensor system places a controlled bias on the proof-mass drive-axis electrodes to cancel the quadrature charge. Also, its charge amplifiers employ a field-effect transistor biased slight…DRIVE·Apr 20·1 min readFollowG01C19/5607The Charles Stark Draper Laboratory, Inc.
SENSOR ELEMENT AND ANGULAR VELOCITY SENSORIn a piezoelectric body of a sensor element, two first arms extend alongside each other from a base part to a +y side. Two second arms extend alongside each other from the base part to a -y side. A ho…DRIVE·Oct 5·2 min readFollowG01C19/5607KYOCERA CORP [JP]
Vibrator and vibratory gyroscopeA vibrator (5) comprises a driving vibration piece (2A, 2B, 2C, 2D), a detection vibration piece (11A, 11B), and a base portion (4B) connecting the driving vibration piece (2A, 2B, 2C, 2D) and detecti…DRIVE·Jul 31·1 min readFollowG01C19/5607SEIKO EPSON CORP [JP]
Tuning fork vibrator and vibrating gyroscope comprising the sameThere are provided a tuning fork vibrator well-balanced in between legs and a vibrating gyroscope using the vibrator. The tuning fork vibrator includes a long plate-like vibration unit having one prin…DRIVE·Jan 26·1 min readFollowG01C19/5607MURATA MANUFACTURING CO [JP]
Piezoelectric resonator element and piezoelectric deviceA piezoelectric resonator element including: a base (51) formed by a piezoelectric material, having a given length; a plurality of vibration arms (35,36) extended from one end of the base; and a suppo…DRIVE·Jan 19·1 min readFollowG01C19/5607SEIKO EPSON CORP [JP]
Angular velocity sensorAn angular velocity sensor is provided with an oscillator including a pair of drive arms, a base portion coupled to one end of each drive arm, and a flexible arm extending from the base portion in a d…DRIVE·May 10·1 min readFollowG01C19/5607MATSUSHITA ELECTRIC INDUSTRIAL CO LTD [JP]
Piezoelectric resonator element and piezoelectric deviceA piezoelectric resonator element including: a base formed by a piezoelectric material, having a given length; a plurality of vibration arms extended from one end of the base; and a supporting arm ext…DRIVE·Apr 26·1 min readFollowG01C19/5607SEIKO EPSON CORP [JP]
ANGULAR SPEED SENSOR AND METHOD FOR FABRICATING THE SAMEProvided are an angular velocity sensor with improved reliability by preventing an electric short circuit resulting from etching debris left on the bottom electrode after the etching of the conductive…DRIVE·Apr 19·2 min readFollowG01C19/5607MATSUSHITA ELECTRIC INDUSTRIAL CO LTD [JP]
Piezoelectric resonator element and piezoelectric deviceA piezoelectric resonator element (32) includes a base portion (51) formed of a piezoelectric material, a plurality of resonating arms (35,36) formed integrally with the base portion and extending par…DRIVE·Mar 29·1 min readFollowG01C19/5607SEIKO EPSON CORP [JP]
Angular velocity sensorAn angular velocity sensor is manufactured by simple method and has reduced size and height. It includes a base portion (1) formed by a piezoelectric single crystal and having a length in the Y-axis d…DRIVE·Jan 25·2 min readFollowG01C19/5607FUJITSU MEDIA DEVICES LTD [JP]
ANGULAR VELOCITY SENSOR AND METHOD FOR DESIGNING THE SAMEAn angular velocity sensor includes a tuning fork vibrator, a drive unit provided on the tuning folk vibrator, and a detection unit for detecting an amount of deflection of the tuning folk vibrator. T…DRIVE·Nov 2·2 min readFollowG01C19/5607MATSUSHITA ELECTRIC INDUSTRIAL CO LTD [JP]
Inertial sensor and combined sensor therewithAn inertial sensor is provided which includes a self-diagnosis circuit which applies an AC-bias signal voltage ahead of a synchronous demodulator, and thereby, supplies a diagnostic signal for detecti…DRIVE·Apr 6·1 min readFollowG01C19/5607MATSUSHITA ELECTRIC INDUSTRIAL CO LTD [JP]
ANGULAR VELOCITY SENSORAn angular velocity sensor includes a stem and a vibrator that is supported by the stem. The vibrator is inclined to a mounting surface of the stem. The angle of inclination of the vibrator to the mou…DRIVE·Mar 2·1 min readFollowG01C19/5607FUJITSU MEDIA DEVICES LTD [JP]
Method and devices for measuring physical quantitiesThe present invention provides a method of measuring a physical quantity using a vibrator. The vibrator 14 has a plurality of driving vibration arms 16A, 16B, 16C and 16D, a plurality of detection vib…DRIVE·Jan 19·1 min readFollowG01C19/5607NGK INSULATORS LTD [JP]
Vibrators and vibratory gyroscopesThe object of the present invention is to improve the sensitivity of a vibrator having at least one bending vibration arm vibrating along a specified plane in bending mode, and a base portion provided…DRIVE·Aug 11·1 min readFollowG01C19/5607NGK INSULATORS LTD [JP]
ANGULAR-VELOCITY SENSORThe sensor has tuning fork shaped substrate (1) on which monitoring units (150) detecting vibration produced by drive units (110), and displacement detectors (120) are provided. The detectors, drive a…DRIVE·Jul 14·1 min readFollowG01C19/5607MATSUSHITA ELECTRIC INDUSTRIAL CO LTD [JP]
THIN-FILM MICROMACHINE RESONATOR, THIN-FILM MICROMACHINE RESONATOR GYROSCOPE, NAVIGATION SYSTEM USING THE THIN-FILM MICROMACHINE RESONATOR GYROSCOPE, AND AUTOMOBILEA thin film micromechanical resonator (resonator) having improved drive efficiency, a resonator gyro having improved sensitivity in detecting an angular velocity, and a navigation system and an automo…DRIVE·Jul 14·2 min readFollowG01C19/5607MATSUSHITA ELECTRIC INDUSTRIAL CO LTD [JP]
Angular velocity sensorAn angular rate sensor for a vibration body comprising means for detecting a level of vibrations of a vibration body, detecting means for detecting a Coriolis' force produced in proportion to an angul…DRIVE·Mar 3·2 min readFollowG01C19/5607MATSUSHITA ELECTRIC INDUSTRIAL CO LTD [JP]
METHOD FOR MANUFACTURING ELECTRONIC COMPONENTAn electronic circuit is manufactured by the following method. Elements are formed on a front surface of a substrate, and then, a recess is formed around each of the element in the front surface of th…DRIVE·Feb 11·1 min readFollowG01C19/5607MATSUSHITA ELECTRIC INDUSTRIAL CO LTD [JP]
Vibrating gyroscope using a tuning fork vibrator and electronic apparatus using such a vibrating gyroscopeThere are provided a tuning fork vibrator (10) well-balanced in between legs, a vibrating gyroscope using the vibrator, an electronic apparatus using the vibrator, and a manufacturing method of the vi…DRIVE·Dec 10·1 min readFollowG01C19/5607MURATA MANUFACTURING CO [JP]
ANGULAR VELOCITY SENSORThe present invention provides an angular velocity sensor that allows abnormality detection of the sensor from the outside and has further improved in-service reliability. The angular velocity sensor …DRIVE·Dec 3·1 min readFollowG01C19/5607MATSUSHITA ELECTRIC INDUSTRIAL CO LTD [JP]
PIEZOELECTRIC FUNCTIONAL PART AND METHOD OF MANUFACTURING THE PARTA piezoelectric device includes a substrate, a buffer layer on the substrate, a lower electrode layer on the buffer layer, a piezoelectric layer on the lower electrode layer, and an upper electrode la…DRIVE·Oct 29·1 min readFollowG01C19/5607MATSUSHITA ELECTRIC INDUSTRIAL CO LTD [JP]
Vibrators and vibratory gyroscopesAn object of the present invention is to reduce the zero point temperature drift of a vibrator and the deviation or change of the drift among vibrators actually fabricated. A vibrator has a driving vi…DRIVE·Sep 17·1 min readFollowG01C19/5607NGK INSULATORS LTD [JP]
Sensing apparatus comprising a sensing unit supported by a supporting unit and electronic equipment comprising said sensing apparatusA sensing apparatus comprises a sensing unit (27,50,57) and a supporting unit (26,43,61). The sensing unit detects a direction and an amount of physical quantity applied thereto. The sensing unit has …DRIVE·Aug 13·1 min readFollowG01C19/5607PIONEER CORP [JP]
ANGULAR VELOCITY SENSORThe present invention aims to improve detection characteristics of an angular velocity sensor using a tuning fork vibrator made of a single crystalline piezoelectric material such as quartz. In order …DRIVE·May 28·1 min readFollowG01C19/5607MATSUSHITA ELECTRIC INDUSTRIAL CO LTD [JP]
Angular velocity sensorAn angular velocity sensor (101) is provided that includes a frame (20), an oscillator (10) and torsion bars (30) that connect the oscillator to the frame. The frame, the oscillator and the torsion ba…DRIVE·Apr 16·1 min readFollowG01C19/5607FUJITSU LTD [JP]
ANGULAR VELOCITY SENSOR AND METHOD OF ADJUSTING CHARACTERISTICS OF THE SENSORIn an angular velocity sensor including two oscillators, the oscillators are balanced in weight precisely, thus providing improved output characteristics. In the sensor, at least one of the two oscill…DRIVE·Mar 26·1 min readFollowG01C19/5607MATSUSHITA ELECTRIC INDUSTRIAL CO LTD [JP]
Diagnostic test for a resonant micro electro mechanical angular rate systemA balanced resonant micro electromechanical system angular rate sensor includes a feedback control loop that generates a null signal to rebalance the sense element to cancel any a Coriolis force induc…DRIVE·Dec 11·1 min readFollowG01C19/5607KELSEY HAYES CO [US]
Tuning-fork type vibration gyro and electrode trimming method thereforA tuning-fork type vibration gyro is able to suppress pyroelectric noise caused by temperature change and to obtain a sensor output having a high signal-to-noise ratio. The tuning-fork type vibration …DRIVE·Oct 16·2 min readFollowG01C19/5607FUJITSU MEDIA DEVICES LTD [JP]
Redundant inertial rate sensor and methodRedundant rate sensor and method in which inertial rate is monitored with a plurality of vibratory sensing elements mounted in a single enclosure, signals from the sensing elements are processed to pr…DRIVE·Jul 31·1 min readFollowG01C19/5607BEI TECHNOLOGIES INC [US]
Inertial rate sensor with improved tuning fork drive and corresponding drive methodInertial rate sensor and method in which a drive signal consisting initially of a square wave and thereafter a sine wave is applied to a vibratory rate sensing element, a pickup circuit is coupled to …DRIVE·Mar 20·1 min readFollowG01C19/5607BEI TECHNOLOGIES INC [US]
Inertial rate sensor and method with improved clockingInertial rate sensor and method in which a drive signal is applied to a rate sensing element, a pickup circuit is coupled to the rate sensing element for providing an output signal corresponding to mo…DRIVE·Mar 20·1 min readFollowG01C19/5607BEI TECHNOLOGIES INC [US]
Inertial rate sensor and method with built-in testingInertial rate sensor and method in which in which a single output terminal is utilized for delivering a rate output signal during normal operation, interfacing with an external computer during a progr…DRIVE·Mar 20·1 min readFollowG01C19/5607BEI TECHNOLOGIES INC [US]
ANGULAR SENSOR AND METHOD OF MANUFACTURE THEREOFAn angular velocity of the present invention includes a resonator formed of a resonating member and a connecting member, a first base connected to the connecting member, a holding plate to hold the fi…DRIVE·Mar 20·2 min readFollowG01C19/5607MATSUSHITA ELECTRIC INDUSTRIAL CO LTD [JP]
ANGULAR SPEED SENSORThe present invention aims at improving detection sensitivity of an angular rate sensor that uses a tuning fork vibrator composed of mono-quartz piezoelectric material such as crystallized quartz. To …DRIVE·Nov 7·2 min readFollowG01C19/5607MATSUSHITA ELECTRIC INDUSTRIAL CO LTD [JP]
ANGULAR SPEED SENSORIt is an object of the invention to increase the drive efficiency of an angular speed sensor, which uses s tuning fork of a single-crystal piezoelectric material such as quartz. An angular speed senso…DRIVE·Nov 7·1 min readFollowG01C19/5607MATSUSHITA ELECTRIC INDUSTRIAL CO LTD [JP]
ANGLULAR VELOCITY SENSORAn angular velocity sensor includes first exciters providing a vibrator with drive vibration, a piezoelectric element having a vibration detector for detecting vibration level of the vibrator, and Cor…DRIVE·Aug 8·1 min readFollowG01C19/5607MATSUSHITA ELECTRIC INDUSTRIAL CO LTD [JP]
