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JP2015148450A |
To calibrate an IMU to be calibrated with high accuracy by using only IMU output.An IMU calibration system 1 is provided with an IMU error calculation unit 31 and an error correction unit comprising a bias error correction unit 212, a sc...
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JP5762348B2 |
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JP2015141102A |
To provide an acceleration sensor capable of reducing variation in output of self-diagnosis.The acceleration sensor includes: a support base plate; a weight; a beam one end of which is connected to the support base plate and the other en...
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JP3198872U |
To provide a speed sensor device and an electronic control unit capable of discriminating whether it is an error event or a critical state such as a wheel stop. A speed sensor device 1 includes a sensor element 10 that provides a sensor ...
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JP2015137985A |
To provide an acceleration sensor capable of stabilizing an output signal even when the temperature in the vicinity of the acceleration sensor changes.The acceleration sensor includes: an acceleration detection element 42; a support plat...
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JP5754274B2 |
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JP5754732B2 |
The different advantageous embodiments provide an apparatus and method for identifying an airspeed for an aircraft. In one advantageous embodiment, an apparatus is provided. The apparatus consists of a plurality of pitot-static probes. T...
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JP2015135349A |
To propose a new method for estimating a bias value of an inertia sensor.A temporary attitude angle which is an attitude angle on the assumption that bias is zero is calculated using detection values of a plurality of axes obtained when ...
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JP5747836B2 |
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JP5736106B2 |
To accurately calculate an attached angle of an accelerometer and accurately correct an acceleration that is obtained from the accelerometer. A frequency analyzing module 11 of an acceleration corrector 10 divides a sensor coordinate sys...
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JP2015108595A |
To provide a sensor output correction device capable of correcting output of a second inertia sensor having a dynamic range greater than that of a first inertia sensor by using output of the first inertia sensor, and further to provide a...
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JP5733673B2 |
A MEMS sensor includes a micro-electromechanical structure, a detection circuit, and a self-test circuit to test the health of the MEMS sensor during runtime operations. The self-test circuit is configured to inject into the micro-electr...
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JP5711334B2 |
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JP5697149B2 |
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JP5681408B2 |
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JP5652760B2 |
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JP5649810B2 |
A technique in which a false detection and a wrong diagnosis can be suppressed in a capacitance sensor represented by an acceleration sensor is provided. A first capacitative element and a second capacitative element, which configure a c...
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JP5648051B2 |
Provided is a yaw rate detection device comprising: a vehicular yaw rate detection means for detecting the yaw rate of a vehicle and outputting a detection value; a left/right wheel speed detection means for detecting the wheel speed of ...
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JP5640620B2 |
An acceleration detection device (12) is provided with a zero point correction unit (21) for correcting a zero point position of a sensor signal (Gsen) value by using the correction amount (absolute value of a correction value (Gd)) base...
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JP5640619B2 |
An acceleration detection device (12) is provided with a zero point correction unit (21) for correcting a zero point position of a sensor signal by a correction amount based on the acceleration signals (Gin, Gout) when the neutral contro...
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JP5639685B2 |
The method and apparatus in one embodiment may have: a sensing element for an accelerometer having a bias, the sensing element having a rectangular plate supported by flexures which allow rotation about a transverse center line thereof; ...
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JP2014228476A |
To determine the abnormality of the low-pass filter of a sensor unit with simple configurations.A sensor unit 10 includes switching means 4 for switching input to a low-pass filter 3 from either a sensor 1 or a standard oscillator 2. The...
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JP5628324B2 |
A method of processing signals from an accelerometer/gyroscopic-based input device includes providing the input device within a vehicle. An accelerometer/gyroscopic-based second device is also provided within the vehicle. The input devic...
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JP5616154B2 |
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JP2014178132A |
To provide an external force detection apparatus capable of highly accurately and stably detecting external force applied to a piezoelectric piece.In an apparatus in which when a quartz piece 2 is bent in accordance with external force, ...
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JP5595266B2 |
The invention relates to a device for monitoring errors in undercarriage components of rail vehicles, having at least one acceleration sensor which works with an evaluation unit. At least one acceleration sensor is arranged on the underc...
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JP5589551B2 |
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JP5585962B2 |
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JP5581702B2 |
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JP5584634B2 |
In an angular speed detection apparatus according to the present embodiment, in a positive counter, a first counter value P is obtained by adding 3 when an average angular speed “ASMAV (deg/s)” calculated at each “time” is higher...
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JP5577990B2 |
The present invention is applied to a portable terminal having two housings that are foldably connected to each other. The portable terminal according to the present invention has two display units provided respectively on the two housin...
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JP2014153093A |
To provide a calibration system of an electromagnetic current meter, which is capable of suitably calibrating a measurement current velocity measured by the electromagnetic current meter regardless of the change in arrangement pattern of...
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JP2014145613A |
To calculate, even if an antenna is installed in such a position on a moving body as would suffer variations in relative position caused by oscillation, the angular velocity unaffected by the oscillation.A GNSS signal is received with an...
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JP5560540B2 |
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JP5561469B2 |
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JPWO2012147348A1 |
The detection unit outputs a corrected signal according to the inertial force. The corrected signal is corrected to generate a corrected signal. Obtain the first and second environmental values at the first and second time points, respec...
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JP5549503B2 |
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JP5541848B2 |
A sensor unit for a three-axis accelerometer enabling reduction in chip size. The sensor unit is connected to an accelerometer that detects a plurality of acceleration values for a plurality of axis directions. The sensor unit includes a...
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JP5540012B2 |
An anemometer probe having a single wire or n wires (n>1) that are mutually parallel, for a measurement close to a wall, comprising, for each wire: a) two pins for holding the wire in place, the end of each pin having a flat zone for pos...
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JP5538623B2 |
The invention relates to a method for detecting the state of pedal sensors of a bicycle with an electric drive. According to the invention, the rotational speed sensor signal is provided by means of a rotational speed sensor (22) of the ...
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JP2014115080A |
To provide a physical quantity sensor capable of appropriately performing self-diagnosis while maintaining good sensitivity.An interdigital electrode structure of a detection part 33 is patterned reversely to an interdigital electrode st...
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JP2014106206A |
To provide an inertial sensor and a method for reducing its calculation error in which a calculation error due to output change generated by temperature variations can be reduced comparatively simply and accurately without requiring a co...
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JP5492302B2 |
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JP5486097B2 |
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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JP2014077769A |
To enable whether or not an axis of a yaw-rate sensor is tilted to be accurately determined.HDOP is calculated by a Doppler reliability determination part 76. A change in a GPS estimation azimuth angle of an own vehicle is estimated by a...
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JP5471782B2 |
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JP5474938B2 |
An accelerometer has an acceleration transducer producing uncorrected analog acceleration signals representing vertical, lateral, and longitudinal components of acceleration. An error correction system is connected to the acceleration tr...
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JP5457716B2 |
An exemplary inertial measurement apparatus has first and second inertial instruments that are oriented to have parallel sense axes and that produce respective first and second sensed output signals representative of an inertial attribut...
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JP5454133B2 |
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JP5452708B2 |
A vehicle state detecting device in accordance with the present invention is provided with acceleration sensors 1, 2, and 3 respectively disposed on three axes in such a way as to be able to detect acceleration in each of directions of t...
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