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WO/2009/000727A1 |
The invention relates to a method for length and/or velocity measurement, in particular for positioning tasks, in which an optical sensor carries out a length and/or velocity measurement on a measurement object in a contactless manner, w...
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WO/2008/153816A2 |
Methods, systems, and computer program products for using a reference meter to provide automated calibration for a fuel dispenser are disclosed. According to one method, first historical metering data associated with a fuel flow meter an...
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WO/2008/146757A1 |
It is possible to estimate a reliable offset even if a vector physical amount to be measured is not a measured data group acquired in a uniform space. It is possible to further improve the reliability of the estimated offset. A vector ph...
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WO/2008/139503A1 |
A wide-band, single-axis or multiple-axis accelerometer or acceleration-measuring sensor (1), self-recognising its calibration is described, comprising at least one accelerometric detecting unit, such group being composed of at least two...
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WO/2008/139743A1 |
Vehicle condition detecting unit (1) comprising a sensor section (acceleration sensor (11)) for detecting of the behavior of vehicle; an integration processing section (integration circuit (12)) capable of integrating the physical quanti...
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WO/2008/134244A1 |
An integrated respiratory ventilation system and method for its calibration is described. The system includes a ventilator having air conduits, transducers adapted to emit signals proportional to the level of air pressure or air flow wit...
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WO/2008/113375A1 |
The invention relates to a method and a device operating according to said method for measuring flow velocities. A basic calibration is performed independently of the device, by means of which coefficients are determined that represent a...
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WO2008083195A9 |
A system and method for a low cost fluid flow sensor is described. One embodiment includes a fluid flow sensor comprising a first resistance temperature detector configured for generating a flow signal, wherein the flow signal is based o...
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WO/2008/090275A2 |
The invention relates to a method for calibrating the scale factor of an axisymmetrical vibrating gyrometer actuated by the application of an amplitude control signal (CA) and of precession control signal (CP) to a resonating member (1) ...
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WO/2008/086850A1 |
The invention relates to a device for determining the speed of a vehicle with means for determining the yaw rate of the vehicle, means for determining the curvature of a curve passed through by the vehicle, and means for determining the ...
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WO/2008/080679A2 |
The invention relates to a method for determining a rotational speed value of a signal representing a current rotational speed of a shaft, particularly of a signal of a transmitter associated with a transmitter wheel of a crankshaft of a...
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WO/2008/068542A1 |
A method for automatically calibrating sensors in inertial sensor systems during use is presented. Measurement values of a sensor to be calibrated are recorded in at least two different sensor orientations, and the orientations held at t...
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WO/2008/065128A1 |
The invention relates to an active sensor (1) composed of a measurement module (2) and an interface module (3), comprising at least one first current source (31), an input line (32) and an output line (33), wherein the active sensor (1) ...
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WO/2008/038781A1 |
A probe card (4) being connected with a means for evaluating the characteristics of a minute structure by delivering a test sound wave to the movable portion (16a) of the minute structure formed on a wafer (8) comprises a probe (4a) conn...
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WO/2008/037601A1 |
The invention relates to a method for testing a sensor (10), in particular an acceleration sensor or yaw rate sensor contained in the occupant protection system of a motor vehicle. According to said method, a test signal (SA) is applied ...
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WO/2008/035531A1 |
Provided is an operation device control apparatus capable of acquiring information on a rotation angle of an operation device while reducing affects of a individual difference and fluctuation of a reference sensor signal according to a s...
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WO/2008/025763A2 |
The invention relates to a method for detecting and storing at least speed as an information relevant for registration for a tachograph system. The aim of the invention is to provide a tamperproof tachograph system offering a high degree...
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WO/2008/022968A2 |
Active sensor (1) for changing over to a special operating mode, wherein the sensor (1) has at least one sensor element (2), an evaluation circuit (3) and two connecting lines (4, 5) with a respective connection (41, 51) for transmitting...
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WO/2008/009910A1 |
A method of identifying a faulty vehicle speed sensor on a vehicle comprises the steps of determining whether or not a wheel of a vehicle is rotating using an alternative sensor attached to that wheel, and in the event that the alternati...
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WO/2007/125756A1 |
Provided is an inspecting apparatus which can perform a dynamic test of characteristics in each direction of degree of freedom, to a fine structure having the degree of freedom in multiple directions, without direct contact with a movabl...
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WO/2007/111978A2 |
System having one or more inertial sensors in which one or more of the sensor input axes are modulated in orientation about an axis substantially perpendicular to the input, or sensitive, axis of the sensor and, in some embodiments, by a...
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WO/2007/077859A1 |
A reference point determined in a 2-dimensional or a 3-dimensional orthogonal coordinate space and a reference length of each axis are estimated from distribution on the 3-dimensional orthogonal space using, as a coordinate value, each a...
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WO/2007/065740A1 |
The invention relates to a method for determining long-term offset drifts of acceleration sensors in a motor vehicle. Said method comprises the following steps: - the longitudinal vehicle speed Vx is determined in the center of gravity o...
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WO/2007/045787A1 |
The invention concerns a method for validating an acceleration measurement γmes supplied by an accelerometer in a motor vehicle. The invention is characterized in that said method includes steps which consist in: measuring, in freewheel...
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WO/2007/045788A1 |
The invention concerns a device for measuring acceleration in a motor vehicle, characterized in that it comprises: an accelerometer (100) arranged in said vehicle, adapted to measure an acceleration ?mes, means (200) for detecting the ve...
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WO/2007/031606A1 |
The invention relates to measurement devices used in the measurement of acceleration, and more specifically, to micromechanical acceleration sensors. The invention seeks to offer an improved method for the measurement of acceleration dir...
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WO/2007/031675A1 |
The invention concerns a device for measuring a quantity representing the rotational speed of a motor vehicle wheel (14ag, 14ad, 14rg, 14rd), comprising means (22ag, 22ad, 22rg, 22rd) for coding and measuring the rotational speed in the ...
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WO/2007/026238A1 |
An apparatus-based method is disclosed for calibration of a 3D field sensor. The method comprises accessing a plurality of samples, where the samples are from the 3D field sensor. Each sample represents a magnitude and an orientation of ...
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WO/2007/018186A1 |
A chip to be measured in a three-dimensional acceleration sensor is loaded on a chuck (SP1), a probe needle is shifted to the chip to be measured (SP2), fritting control is performed (SP4), the probe needle is connected to an electrode p...
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WO/2007/015506A1 |
There are provided an inspection device, an inspection method, and an inspection program for accurately inspecting a minute structure having a movable portion by using a simple method. A test sound wave is inputted and frequency characte...
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WO/2007/015138A1 |
An attitude angles calculation device (14) calculates attitude angles of a robot from the output values of an acceleration sensor (10). An attitude angles comparison device (16) compares attitude angles in a specified attitude which have...
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WO/2007/013580A1 |
There are provided a semiconductor device having a micro structure capable of compensating irregularities in the fabrication stage by using a result of a test performed by a tester, its fabrication method, its fabrication method program,...
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WO/2007/009825A1 |
An inertial measurement unit (IMU) contains three linear acceleration sensors and three rotational speed sensors. For the sensors there are desired installation directions parallel to the co-ordinate axes of a Cartesian co-ordinate syste...
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WO/2006/132538A1 |
The invention relates to a method and a system to demonstrate discrepancies in the speedometer of a vehicle. In a preferred embodiment, the method and the system further comprise the possibility of adjusting or calibrating the speedomete...
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WO/2006/111440A2 |
The invention relates to an acceleration sensor system, a controller and a method for transmitting acceleration values. During acceleration, the acceleration values are logarithmically encoded in the acceleration sensor system, and are t...
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WO/2006/106876A1 |
A method for inspecting a microstructure having a movable part with high accuracy without damaging the probe or the inspection electrode by lessening the influence of the needle pressure when the probe is brought into contact with the in...
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WO/2006/093232A1 |
A speaker unit (2) has a plurality of sound sources so that a sound wave is outputted from each of the sound sources. The arrival of the sound wave as a compressional wave outputted from the speaker unit (2), i.e., an air vibration moves...
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WO/2006/093637A2 |
A method for a geometry of a lateral comb drive for an in-plane, electrostatic force feedback, closed-loop, micromachined accelerometer or closed-loop Coriolis rate gyroscope device, or closed-loop capacitive pressure or force measuring ...
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WO/2006/077867A1 |
Provided are a semiconductor device having a micro structure for suppressing the change in characteristics in a wafer state with an assembly step, and a fabrication method of the micro structure. A dummy wafer (10) is adhered through an ...
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WO/2006/065298A1 |
A system to determine unwanted noise produced by simulation equipment. In one embodiment, an angular rotation noise measuring system comprises a stable body, a laser, at least one interferometer and at least one mirror. The laser (202) i...
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WO/2006/060601A1 |
A three-dimensional balance assembly is provided. The assembly includes a center shaft, two or more eccentric weighted shafts encompassing the center shaft and a first and a second locking mechanism that lock each weighted shaft into any...
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WO/2006/056497A1 |
An acceleration sensor in a controller for driving personal protection means is disclosed, having a logic element for transmitting a signal which characterises acceleration to a processor (12) in the controller. The logic element is used...
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WO/2006/055770A2 |
A calibration system for a robot and its peripheral includes an emitter attached to the robot or its peripheral and emits a laser beam and a receiver also mounted to the robot or its peripheral at a point to permit calibration and for re...
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WO/2006/040203A1 |
The invention relates to a control and analytical device for various sensor units (101), comprising a stabilised supply unit (300) for supply of the sensor unit (101) with electrical energy, an amplifier device (200), for amplification o...
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WO/2006/038669A1 |
An angular velocity sensor unit capable of judgment of 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 a vibrator having a shaft secti...
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WO/2006/026751A1 |
A method for calibration of motion sensors included in a vehicle electronic brake control system includes positioning the vehicle on a horizontal surface and utilizing the sensor outputs to calculate a calibration factor that is stored i...
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WO/2006/018791A1 |
The present invention provides a method and apparatus for calibrating the rotational relationship between a first motion sensor and a second motion sensor in a sensor system, the method comprises the steps of: determining a minimal numbe...
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WO/2006/016074A1 |
The invention relates to a device for monitoring a body (10), fixed in relation to a motor vehicle, said body having at least one position for correct operation and a position for faulty operation. Said device comprises measuring means (...
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WO/2006/016922A1 |
A method for calibrating the sensitivity of a micromachined differential-capacitor accelerometer without applying mechanical stimulation, such as shaking. The accelerometer is fabricated with dimensional control structures so that a dime...
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WO/2006/016671A1 |
An acceleration measuring device capable acquiring offset or both sensitivity and offset required for correcting an output from a 3-axis acceleration sensor. The device comprising an acceleration sensor (1) for detecting 3-axis-direction...
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