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WO/2015/140537A1 |
A method for closed loop operation of a capacitive accelerometer comprising: a proof mass; first and second sets of both fixed and moveable capacitive electrode fingers, interdigitated with each other; the method comprising: applying PWM...
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WO/2015/135755A1 |
The invention relates to a vibration exciter having load compensation for dynamically exciting test specimens, comprising a base, an actuator, an armature, which can be moved in relation to the base in an excitation direction by means of...
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WO/2015/128922A1 |
This capacitive physical quantity detection device is provided with a sensor unit, a control circuit, and a CV conversion circuit. The sensor unit has a moveable electrode, a first stationary electrode, and a second stationary electrode....
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WO/2015/089118A9 |
A surgical navigation system comprising a signal receiver communicatively coupled to a primary processor, the primary processor programmed to utilize a sequential Monte Carlo algorithm to calculate changes in three dimensional position o...
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WO/2015/111416A1 |
This acceleration sensor has a detection element, a counter electrode and an upper cover. The detection element includes an active layer, a base layer, an oxide film layer that is provided between the active layer and the base layer, a f...
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WO/2015/098893A1 |
A capacitance trimming circuit (7) is provided with: a capacitance trimming unit (5); and a capacitance voltage division generating unit (6) which, when the electrostatic capacitance is to be adjusted by the capacitance trimming unit (5)...
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WO/2015/097412A1 |
The invention proposes a test bench comprising at least one accelerometer (26, 28) which is linked by rigid mechanical linking to a support (12), and comprising a vibration chamber (38) able to convert an electrical signal into a mechani...
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WO/2015/081546A1 |
A method for determining an acceleration of a vehicle comprises: (S101) obtaining original acceleration data measured by an accelerometer during the driving of a vehicle; (S102) removing interference of gravity to the original accelerati...
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WO/2015/068169A1 |
A system for monitoring locations of each of a population of wandering devices, each having localizing functionality, the system comprising a tracking functionality operative for monitoring locations of each of the population of wanderin...
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WO/2015/069386A1 |
An accelerometer has a movable mass suspended above a substrate, and a variable acceleration capacitor supported by the substrate. The movable mass has a mass anchor securing the mass to the substrate, while the acceleration capacitor ha...
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WO/2015/052926A1 |
An acceleration sensor having a CV conversion circuit, an AD conversion circuit, and first and second resistors. The CV conversion circuit outputs voltage in accordance with change in capacity between a movable electrode and first and se...
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WO/2015/035473A1 |
The present invention relates to a method for determining a parameter of an athlete. The method involves monitoring acceleration of the athlete using an accelerometer. The monitored acceleration and a model associated with the athlete ar...
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WO/2015/032092A1 |
Disclosed is a method for adjusting a sensitivity of a shock sensor which is used for sensing an attack on a facility equipped with the shock sensor, wherein the shock sensor is provided with a mode setting device and said method compris...
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WO/2015/027384A1 |
A sensor calibration platform comprises an electric motor (11), a straight-line guide rail (3) arranged horizontally, a grating ruler (7), a human-machine terminal (14), a controller (13) connected with the human-machine terminal (14), a...
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WO/2015/019147A1 |
An aircraft air data probe contamination monitor includes at least two air data sensor probes, a first probe located on one side of the aircraft, a second probe located on an opposite side of the aircraft, each probe being operable to ge...
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WO/2015/001370A1 |
An on-board trimming circuit suitable for trimming an accelerometer (100) provides offset trim (112, 113) and gain trim (116, 115) modules for determining correct trim codes for subsequent programming into the trimming circuit. The corre...
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WO/2014/196320A1 |
An acceleration sensor (11) is provided with a fixed part (12), a weight part (13), a detection beam (14A), support beams (14B, 14C), and a metal wiring (15A). The weight part (13) is supported so as to be able to shift position relative...
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WO/2014/195162A1 |
The invention relates to a method for determining the speed of a rail vehicle (10) equipped with at least one first chassis unit (14), according to which method a chassis speed measurement variable (Vdreh) is provided by means of a senso...
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WO/2014/188705A1 |
A capacitive physical quantity sensor is provided with a first substrate (14, 15), a movable electrode (24), a fixed electrode (31, 41), a second substrate (11, 201), a signal application unit (120, 130), a C-V conversion circuit (110), ...
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WO/2014/184033A1 |
The invention relates to a sensing system(100) for a micromechanical sensor device (200), comprising: a seismic mass (10) that can be moved along a sensing direction (R); and at least one sensing element (20) arranged on one side of the ...
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WO/2014/182920A1 |
Systems, apparatuses and methods for digital compensation for total harmonic distortion in a displacement sensor. The methods can include determining a total harmonic distortion compensation function for a displacement sensor; using the ...
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WO/2014/176829A1 |
A piezoelectric type acceleration sensing system with self-excitation diagnosis, comprising a piezoelectric assembly (1), a self-excited oscillation module (2) and an operation module (3), wherein the self-excited oscillation module (2) ...
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WO/2014/177888A1 |
A method,system and computer program for determining the orientation of an apparatus relative to a vehicle in which the apparatus is installed is disclosed. Acceleration data of the apparatus along three mutually orthogonal axes at a fir...
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WO/2014/173981A1 |
Device for differential acquisition of current, comprising an acquisition chain comprising a charge amplifier linked, at input, to terminals for connection to a signals emitter component, and at output, to an integrator, characterized in...
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WO/2014/171227A1 |
[Problem] To provide an attitude angle estimation device that accurately estimates the attitude angle of an acceleration sensor over a wide range. [Solution] An attitude angle estimation device (10) is provided with a rough estimation un...
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WO/2014/170051A1 |
The invention relates to a measurement transducer (1) for process instrumentation having a sensor (S) for capturing a physical or chemical variable, wherein the sensor (S) has measuring resistors (R1… R4) for producing an analogue meas...
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WO/2014/163076A1 |
This capacitance type sensor (10) is provided with a moveable electrode (110), a support (120), beam members (130), fixed electrodes (141, 180), a detector unit (200), and a correction unit (300). The beam members (130) function as sprin...
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WO/2014/156903A1 |
This delivery vehicle (1), which is provided with a plurality of wheels (101, 104), is provided with: a vehicle speed change estimation unit (109) that calculates a drive acceleration, which is the estimated value of the change over time...
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WO/2014/151956A1 |
Techniques are disclosed for systems and methods to provide wind sensor motion compensation for wind sensors mounted to moving platforms. A wind sensor motion compensation system may include a wind sensor, a wind sensor accelerometer, on...
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WO/2014/149151A2 |
The present invention provides an improved method and system for compensation of inertial sensors. In one implementation a modified moving average is applied to provide dynamic offset compensation for an inertial sensor output that is ca...
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WO/2014/145415A2 |
Embodiments of a front derailleur gear shifting system including various unique chain guides attached to and operating from a single pivot point. This derailleur system provides a simple, yet, elegant and robust improvement in shifting t...
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WO/2014/125790A1 |
A motion analysis system includes an analysis control device that analyzes a motion of a measurement target using measurement data from a plurality of measurement units including an angular velocity sensor, and the analysis control devic...
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WO/2014/119092A1 |
Provided is technology, for a composite sensor, to suppress a failure that occurred in a detection element from influencing another detecting unit in which no failure has occurred. A composite sensor comprises: a plurality of detecting u...
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WO/2014/110669A1 |
An inertial measurement unit is affixed to a rigid body. The inertial measurement includes a gyroscope that measures a first angular velocity and an angular acceleration; a first accelerometer that measures a first acceleration; a commun...
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WO/2014/090579A1 |
The invention relates to a method for determining the offset value of a sensor signal in a vehicle after the end of a switch-off period in which the vehicle was switched off, containing the steps of - determining the offset value of the ...
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WO/2014/090445A1 |
A sensor system for providing an N-dimensional measurement signal comprises at least N+1 sensors having measuring directions which are linearly independent of one another, a stimulus source for providing a periodic stimulus signal for ea...
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WO/2014/086526A1 |
The invention proposes a method for monitoring a rotation of a compressor wheel (12), in particular a compressor wheel (12) of an exhaust gas turbocharger, and an apparatus (10) for carrying out the method. The method according to the in...
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WO/2014/076398A1 |
The invention concerns a device for protecting an aircraft turbomachine computer against speed measurement errors comprising: • - on a speed control channel (10): a turbomachine gearbox shaft speed sensor (21), a speed measurement circ...
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WO/2014/075698A1 |
The invention relates to a method (24) for calibrating a rotary encoder (8), in particular an incremental encoder, of an electrical machine (2), wherein said encoder has a number of reference marks (12) and outputs a sine track (14) and ...
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WO/2014/070524A1 |
An accelerometer in a mobile device is calibrated by taking multiple measurements of acceleration vectors when the mobile device is held stationary at different orientations with respect to a plane normal. A circle is calculated that fit...
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WO/2014/070399A1 |
An accelerometer located within a mobile device is used to estimate a gravity vector on a target plane in a world coordinate system. The accelerometer makes multiple measurements, each measurement being taken when the mobile device is he...
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WO/2014/061099A1 |
The present invention is a configuration in which signals generated by application of acceleration other than a measurement signal are offset each other before being inputted to an LSI circuit, thereby preventing a breakdown of an inerti...
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WO/2014/037902A1 |
A method and system for calculation and consolidation of a first plurality of aircraft flight parameters including a second plurality of pressure sensors. The pressure sensors are arranged in respective aircraft locations, each pressure ...
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WO/2014/033288A1 |
Within the scope of a method for determining a value of a movement-dependent variable (WE), a first measured value (MW_1) representing the movement-dependent variable is provided. In addition, at least one second independent measured val...
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WO/2014/029069A1 |
A calibration apparatus of a gas-liquid two-phase flow speed and gas content sensor for concurrently measuring the two-phase flow speed and gas content by using a pressure sensor and a conducting electrode comprises parts such as a liqui...
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WO/2014/019720A1 |
A probe system (2) comprising: a mounting (12) intended to be fastened to the fuselage (8) of an aircraft (6); and a plurality of regularly spaced static pressure ports (32) arranged through the mounting (12) and intended to be connected...
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WO/2013/187018A1 |
Disclosed is a capacitance type physical quantity sensor comprising a movable electrode (18) formed in a weight part (17), and a fixed electrode (19) facing the movable electrode. A first movable sensing electrode (21) and a first fixed ...
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WO/2013/188776A1 |
Systems and methods described herein relate to the correction of positional vector- valued sensors using a variety of calibration processes including fixed-angle calibration, known- angle calibration, ortho-calibration and 3-axis gimbal ...
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WO/2013/174707A1 |
In a machine tool (1) comprising a rotating spindle (2) and a vision system (7) for acquiring images of a tool (3) mounted on the spindle, for each value (VC) of an interval (ICN) of preselected rotational speed values centred on a nomin...
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WO/2013/163656A1 |
A calibration system for simultaneous calibration of multiple motion capture elements (MCEs) of at least one type (accelerometer and/or gyroscope). Includes motion and/or rotational element coupled to a base and configured to move and/or...
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