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Class 73/497 - Temperature compensator


Subclass of Class 73 - Measuring and testing
Definition: Speed sensitive device which includes means to compensate
No. of applications: 18
Last issue date: 10/06/2011


Application No.Application TitleIssue Date
20110239762Method for Determining the Speed of a Vehicle During a Braking Application
A method of determining a speed of a vehicle during braking is provided. A pressure p in a braking device is determined in accordance with the ideal gas equation p·V=n·R·T. V is the volume V of the brake cylinder, n is the mole number n of the gas in the brake cylind...
10/06/2011
20110127365INERTIAL MEASUREMENT UNIT (IMU) MULTI-POINT THERMAL CONTROL
A thermally controlled gas bearing supported inertial measurement unit (IMU) system is provided. The system comprises a sensor assembly enclosing one or more sensors and a plurality of heating elements, wherein each of the plurality of heating elements is proximal to th...
06/02/2011
20110107852TEMPERATURE INSENSITIVE DEVICES AND METHODS FOR MAKING SAME
An apparatus and method for estimating a parameter of interest using a force responsive element comprising, at least in part, a balanced material. The balanced material is temperature insensitive over a specified range of temperatures such that the force responsive elem...
05/12/2011
20100089155Sensor Unit
A sensor unit has a reference base. An acceleration sensor block and angular velocity sensor support rods are arranged on the reference base, using a bottom face and one side face of the reference base as reference faces. Three acceleration sensors, which detect acceler...
04/15/2010
20100011834ANGULAR VELOCITY DETECTION CIRCUIT, ANGULAR VELOCITY DETECTION APPARATUS, AND FAILURE DETERMINATION SYSTEM
An angular velocity detection circuit is connected to a resonator for making excited vibration on the basis of a drive signal and detects an angular velocity. The angular velocity detection circuit includes: a self-vibration component extraction unit that receives, from...
01/21/2010
20090314082VIRTUAL TURBINE SPEED SENSOR
According to one exemplary embodiment, a virtual turbine speed sensor for a multi-stage turbocharger system of an internal combustion engine is disclosed. The multi-stage turbocharger system includes at least two sequential turbochargers each having a compressor and a t...
12/24/2009
20090095076Acceleration Sensor Device and Sensor Apparatus
An acceleration sensor device includes: a substrate; and an acceleration sensor chip including an acceleration sensor element which has a weight portion arranged to swing according to acceleration applied, and a seating portion which supports the acceleration sensor ele...
04/16/2009
20090090183Methods for compensating parameters of operating accelerometer for temperature variations
A method is disclosed in this invention for compensating a temperature dependent variation of an offset Voffset and sensitivity Vsensitivity parameters of an accelerometer. The method includes steps of a) Measuring a Sensitivity Vsensitivity
04/09/2009
20090031804ANGULAR VELOCITY SENSOR AND METHOD OF SETTING TEMPERATURE CHARACTERISTICS OF ANGULAR VELOCITY SENSOR
In a method of setting temperature characteristics of an angular velocity sensor, temperature characteristics of a detuning frequency are acquired. The detuning frequency is a frequency difference between an oscillation frequency of an oscillation circuit including a pi...
02/05/2009
20080302182TEMPERATURE COMPENSATION CIRCUIT, TRIMMING CIRCUIT, AND ACCELERATION DETECTOR
A temperature compensation circuit having satisfactory linearity, a trimming circuit including a plurality of temperature gradients, and an acceleration detector having a wide applicable temperature range. A plurality of resistor elements R1 to R4, R5
12/11/2008
20070277614Vibration sensor
A vibration sensor includes a vibration body, a drive circuit that vibrates the vibration body, a sense circuit that refers to a reference signal associated with a drive signal for the drive circuit and detects a physical state of the vibration body on the basis of a se...
12/06/2007
20070175276SENSOR SIGNAL PROCESSING SYSTEM AND DETECTOR
A detector is made up of a semiconductor integrated circuit in a part, and the semiconductor integrated circuit includes a driving circuit, an AC amplifier, a detection circuit and an amplifier circuit. An input resistor that is connected to input terminals of an operat...
08/02/2007
20060101909Angular rate sensor with temperature compensation and vibration compensation
An angular rate sensing device with temperature compensation and vibration compensation is provided. The device includes a base; a vibrator having multiple proof masses, arranged in the base; a plurality of flexible supporting members connected to the vibrator and suppo...
05/18/2006
20050274180Method and circuitry for thermal accelerometer signal conditioning
A thermal accelerometer device that provides a compensation for sensitivity variations over temperature. The thermal accelerometer includes signal conditioning circuitry operative to receive analog signals representing a differential temperature is indicative of a sense...
12/15/2005
20050183501Inertia sensor unit
An inertia sensor unit having a detecting element, a signal processor being constituted as an element separate from the detecting element, for at least amplifying signals output from the detecting element, and an inertia sensor mounted to a detection object for detectin...
08/25/2005
20050178202Angular velocity sensor
The angular velocity sensor for detecting an angular velocity for detecting movement amounts and for controlling postures of vehicles, airplanes, cameras, and the like. The angular velocity sensor is provided with a piezoelectric vibrator, a temperature compensation fun...
08/18/2005
20050160841Physical quantity sensor having enhanced temperature compensation capability
A physical quantity sensor according to the invention includes a first member, a second member, a sensing member, a temperature detector, a correcting circuit, and a heat conduction path thermally connecting the sensing member and the temperature detector. The sensing m...
07/28/2005
20050039529Inertial rotation sensor having its sensing element mounted directly on the body
The inertial rotation sensor comprises a body in which there are mounted sensing elements each comprising a bell-shaped resonator secured facing electrodes carried by an electrode-carrier stand, the body being made of a material having a coefficient of thermal expansion...
02/24/2005
 
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