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JP4710119B2 |
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JP2011122923A |
To inspect a failure of a speedometer or erroneous setting of a correction value even in a cab single body.An input pulse of the speedometer 10 determined beforehand to a car model of a cab 7 which is an inspection object is generated, a...
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JP4709008B2 |
The present invention reduces a control processing load of a vehicle-use antilock brake system attributed to a trouble diagnosis of a sensor which is mounted on a vehicle and has an output thereof changed corresponding to a traveling sta...
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JP4703004B2 |
The present invention relates to a method for checking or determining the installation air slot between an active sensor and an encoder, wherein the maximum size of the air slot (maximum air slot) which still ensures trouble-free operati...
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JP4700329B2 |
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JP2011106941A |
To provide a device and method for detecting wheel speed, capable of properly detecting the wheel speed, even when disturbance caused by a suspension device is input.The device for detecting the wheel speed 1 includes: a wheel speed dete...
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JP4691255B2 |
A self-testing sensor (especially to measure an angular rate or acceleration) includes a resonant structure, an actor unit configured to excite the structure to a first periodic vibration, a piezoresistive element configured to generate ...
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JP4688534B2 |
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JP4687256B2 |
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JP4686909B2 |
If a difference between a value evaluated by prorating a sum of an average value of a signal outputted from a signal processing portion within a second predetermined time before a start of a pseudo drive and an average value of the signa...
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JP4681414B2 |
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JP4675831B2 |
A three-axial acceleration sensor inspection device is provided for inspecting a three-axial acceleration sensor that detects acceleration components in three axes crossing perpendicularly with each other and outputs acceleration compone...
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JP4677656B2 |
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JP4673314B2 |
An angular velocity sensor unit is provided which can judge failure in both of two angular velocity sensors. It has a first angular velocity sensor (12) and a second angular velocity sensor (13), each including an oscillator having a sha...
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JP4673535B2 |
A pump used to infuse a fluid into a patient is controlled in accordance with an algorithm that enables a microprocessor (17) to monitor and adjust each pump cycle to compensate for a differential pressure between the pump's inlet and ou...
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JP4670408B2 |
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JP4667731B2 |
A process for the fabrication of an inertial sensor with failure threshold, including the steps of: forming, on top of a substrate (2) of a semiconductor wafer (1), at least one sample element (6) embedded in a sacrificial region (3, 12)...
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JP4669491B2 |
To provide a tuning fork type vibration gyro capable of self-diagnosis of abnormality from various viewpoints. Electrodes 341, 342, 351, 352(base side; 371, 372, 381, 382) for detecting in-plane vibration (vibration in the parallel direc...
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JP4663738B2 |
A reference point defined on a two dimensional or three dimensional orthogonal coordinate space and scale reference of respective axes are estimated based on a distribution on the three dimensional orthogonal coordinate space at the time...
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JP4662674B2 |
A method and a device for detecting mispolarization in a signal transducer is described, with which the output signal of the signal transducer-that has at least one singularity-is converted into a square-wave signal. Intervals between sp...
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JP2011058967A |
To provide a correction device capable of correcting accurately an output value of an acceleration sensor loaded on a vehicle.This correction device (navigation device) 200 for an acceleration sensor connected to an acceleration sensor 2...
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JP4654605B2 |
To provide a method for examining vibration characteristics of a double T-shaped piezoelectric vibration gyro element while giving as little hindrance as possible to the vibration of a vibration arm. The piezoelectric vibration gyro elem...
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JP2011053060A |
To provide a program for calculating offset error information and sensitivity error information of an acceleration sensor, based on the detection information obtained, regardless of the orientation of the acceleration sensor, and to prov...
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JP4652688B2 |
An angular velocity sensor for a rotor ( 2 ) and method of determining angular velocity in which the position at which event generation means ( 4 ) pass sensing means ( 5 ) is determined using information from the times at which the even...
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JP4645768B1 |
An electronic device includes a frequency variable circuit 15, a filter 16, and an output voltage decision circuit 17. The frequency variable circuit 15 changes the sampling frequency of an analog-digital converter 13. The filter 16 limi...
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JP4645013B2 |
An 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 detecting an abnormality in at least one of ...
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JP4636783B2 |
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JP4635948B2 |
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JP2011504578A |
A method for determining location of a mobile terminal includes repetitively switching power-on and power-off to a GPS receiver circuit which determines location of the mobile terminal using GPS signals. The power-on to power-off duty cy...
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JP2011027446A |
To provide an inspection device for an acceleration sensor capable of performing high-accuracy inspection of an angular velocity sensor.The inspection device 1 for an acceleration sensor includes a holding member 16, a motor 12a, and a r...
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JP2011017629A |
To reduce a load applied to a multiaxial acceleration sensor unit in the process for inspecting a detection level, with regard to a method for confirming the detection level in the multiaxial acceleration sensor unit for detecting an acc...
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JP2011002456A |
To test mechanical excitation without any electrical contact in the initial manufacturing process.In a method for exciting a resonance element (14) of a microstructure, the element moves with one degree of freedom. The method includes th...
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JP2011002300A |
To provide a triaxial acceleration sensor having satisfactory characteristics and for adjusting acceleration sensitivity in the directions of an X-axis, a Y-axis, and a Z-axis while reducing the occurrence of offsets.Piezo-resistance ele...
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JP2010286371A |
To provide a physical quantity detector for performing reliable abnormality determination/output, an abnormality diagnosis system of the physical quantity detector, and an abnormality diagnostic method of the physical quantity detector.T...
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JP4603685B2 |
A device for the determination of a measured variable, a motion variable in particular, is described. At its output, the device signals a malfunction via a fixed voltage level at the output. The device includes a self-test module that fu...
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JP4600590B2 |
To provide a compact and high precision angular velocity sensor with a simple structure, which enables the fault diagnosis of a detecting section without creating a new means in addition to the detecting section and a driving section on ...
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JP4599848B2 |
An angular velocity sensor is provided, which is capable of accurate failure diagnosis on a detecting portion despite of its simple configuration and small size without providing additional means on an oscillator separately from the driv...
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JP4595225B2 |
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JP4595215B2 |
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JP2010271209A |
To provide a portable information apparatus, a method and a program for correcting automatically an offset error of an acceleration sensor.This portable information apparatus has the acceleration sensor, a geomagnetic vector, and an acce...
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JP2010271301A |
To highly accurately estimate bias errors for an air vehicle in flight, under high-speed spin conditions.A processing section 130 of the air vehicle 100 collects a series of data from a gyroscope 112 and X-, Y-, and Z-direction accelerom...
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JP4578251B2 |
A semiconductor device having a microstructure and a method of manufacturing a microstructure are provided, suppressing any change of characteristics in a wafer state caused in an assembly step. Specifically, a wafer where a plurality of...
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JP4577396B2 |
A rotation detection apparatus for detecting a rotation state of a gear is disclosed. The rotation detection apparatus includes a magnetic sensor, a magnetic filed generation unit, and a self-diagnosis unit. The sensor includes: a bias m...
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JP4573794B2 |
A probing card and an inspection apparatus which precisely inspect a microstructure having a minute moving section by a simple method are provided. A probing card (6) has a speaker (2), and a circuit substrate (100) which fixes a probe (...
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JP2010241317A |
To provide a sprung vertical acceleration sensor abnormality detection device having a highly accurate abnormality decision function. A coordinate space stipulated by (a) an X-axis corresponding to a position in the longitudinal directio...
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JP4569990B2 |
A method of compensating periodic error signals in sensor output is provided. The method comprises obtaining a sum signal from sensing outputs of M sensor elements (where M is a positive integer), obtaining the amplitude and phase of N f...
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JP2010237072A |
To provide a motion detection unit for easily detecting the motion of an object to be measured by an acceleration sensor module and measuring with high accuracy. The motion detection unit includes: first sensor modules 14 and 34 each det...
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JP4560016B2 |
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JP4556945B2 |
An acceleration detection device for detecting detected acceleration of a vehicle is provided with a stopped acceleration detector, an acceleration change detector, an acceleration estimating unit and a correcting unit. The stopped accel...
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JP2010210629A |
To provide an onboard navigation system with a vehicle speed sensor for detecting vehicle speed pulse omission with a high degree of accuracy.The onboard navigation system includes a radio wave positioning device, and a vehicle speed sen...
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