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WO/1996/001980A1 |
A rotary position transducer comprises a sensor (4) cooperating with a toothed wheel (3) which has nominally evenly spaced teeth and which may, for instance, be mounted on the crankshaft (2) of an internal combustion engine (1). The time...
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WO/1996/000398A1 |
An apparatus and method for testing, for example, ABS systems in which a variable reluctance detector (5) is positioned adjacent a ring of ferromagnetic teeth mounted on a wheel. The amplitude and period of individual cycles of the outpu...
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WO/1995/027217A1 |
A micromechanical sensor unit for detecting acceleration has at least one pendulum with a spiral spring (B) and a seismic mass (P), a support (E) for each pendulum and at least two position feelers (S). Each position sensor (S) and its p...
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WO/1995/027216A1 |
A micromechanical sensor unit for detecting acceleration has at least one pendulum with a spiral spring (B) and a seismic mass (P), a support (E) for each pendulum and at least two position sensors (S). Each position sensor (S) and its p...
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WO/1995/027214A1 |
A micromechanical sensor unit for detecting acceleration having a pendulum with a spiral spring (B) fitted on a substrate (CH) via a support (E) and oscillating parallel to the substrate surface, and having at least one electrically cond...
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WO/1995/026285A1 |
The circuit described for processing the signals from a yaw-rate sensor (11) is intended particularly for controlling the stability of a motor vehicle (1). The circuit has a control unit (18) to which are fed the signals from the yaw-rat...
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WO/1995/025283A1 |
A test pulse is applied to an acceleration-sensitive sensor in order to test its reliability performance. It is possible to differentiate between an intact sensor (curve 1) and a defective sensor (curve 2) by means of their output signals.
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WO/1995/025284A1 |
An electronic arrangement (1) having an acceleration-sensitive sensor (10) is provided with switching means (S1, S2, S3, S4, S5) which connect the sensor (10) to a feedback branch of the electronic arrangement (1) in such a way that the ...
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WO/1995/023975A2 |
A speed signal conditioning and test circuit (10) includes a comparator (36) which is connected to a digital input port (24) of a microprocessor and which switches its output (38) in response to the alternating current generated by the s...
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WO/1995/023974A1 |
A sensor wheel (10) is used, for example, to detect variations in the speed of an internal combustion engine with a high degree of accuracy so that an erratic running value can be calculated from these variations. Such a sensor wheel com...
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WO/1995/022063A1 |
A process for calibrating the output signal of an acceleration sensor by means of an automatic production plant, in which gravitation is used for calibration, the output signals are measured in two oppositely tipped positions of the acce...
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WO/1995/011455A1 |
A sensor arrangement for detecting a crash in a motor vehicle comprises a substantially sealed chamber (1) and a pressure sensor (2) to monitor the pressure within the chamber and to activate an alarm (3) if there is an unacceptably larg...
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WO/1995/006259A1 |
An apparatus for detecting the malfunctioning of an accelerometer (4), where a test signal in form of a pulse is transmitted from a test signal generator (3) to the accelerometer (4) by means of a change-over switch (1, 2) capable of per...
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WO/1995/005608A1 |
An interface circuit for ratiometric compensation of low frequency variations in a sensor output signal, particularly intensity modulated output signals used in vehicle crash detection systems. The interface circuit provides compensation...
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WO/1995/005607A2 |
A transducer testing system for low frequency vibrations incorporates an electric motor/gearbox assembly (16) with an output shaft (18) and mechanical means for converting low frequency shaft rotation of the output shaft (18) to uniform ...
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WO/1995/004879A1 |
A fuel system for an engine (10) includes a fuel pump (13), a controller (14) which controls the operation of the fuel pump so that fuel is delivered to the engine at the required time and in the desired quantity, and a transducer (15) f...
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WO/1995/004285A1 |
An air gap detector for use in antilocking brake systems includes an active integrator that integrates an output signal from a wheel speed sensor, that depends in part on the relative spacing between the wheel axle and its associated bea...
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WO/1995/003597A1 |
A calibration apparatus for calibrating three-dimensional space for a machine vision system and a method for using the calibration apparatus for calibrating the machine vision system are disclosed. The calibration apparatus comprises pai...
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WO/1995/002827A1 |
A method for automatic fluid flow compensation in disposable fluid analysis sensing devices (10) is disclosed. The method is designed to keep the test conditions from sample to sample substantially unchanged. This is accomplished by usin...
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WO/1995/002828A1 |
A method and apparatus for detecting faults in a single-point impact sensing system having electrically conductive self-test plates within the sensor to electrostatically deflect the sense element during self-test sequence. The deflectio...
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WO/1994/029278A1 |
The invention pertains to compounds that can be reacted with a carboxyl function to form an ester bond, with a protective group and in particular an anchor group provided for the carboxyl function. The invention also pertains to esters o...
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WO/1994/029814A1 |
A system (10) for simulating vehicle crashes for testing or evaluating the reliability of a vehicle crash sensor (20) includes a model waveform generator (16) which provides modeling of an actual vehicle crash waveform to generate an inf...
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WO/1994/024571A1 |
A controlled acceleration platform (32) which provides a horizontally quiet platform capable of accurate acceleration and angular control. An object at or near the center of percussion of the pendulum assembly experiences reduced seismic...
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WO/1994/017368A1 |
The invention relates to a device for measuring discharges in partly or completely filled ducts or open channels, utilizing measuring sensors. The device comprises a central simulation system (CS), comprising a numerical model and a high...
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WO/1994/013976A1 |
Mechanical linear guide for making a body move in an axial direction, comprising a system which is preferably made up of reinforced leaf springs and/or hole-type hinges, and which is rotationally symmetrical about an axial direction and ...
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WO/1994/011742A1 |
A circuit (10) for generating a regulated negative voltage output pulse for use in calibrating a transducer, such as used in sensing an acceleration profile of a moving object, utilizes a control pulse (Vc) to reverse the polarity charge...
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WO/1994/007253A1 |
An acceleration sensor (10) includes a nonmagnetic tube (14); an iron washer (18) encircling a longitudinal portion of the tube (14); a magnetic sensing mass (30) located in the tube (14) and magnetically biased by the washer (18) toward...
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WO/1994/006657A1 |
In a process for cornering identification, in particular for motor vehicles with ABS or ASR, the speeds of rotation of both wheels of a (non driven) axle are measured and a correction value for the difference between the tyre rolling cir...
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WO/1994/006100A1 |
In order to detect, record and evaluate from case to case operational and/or driving data of a vehicle, at least a first detection unit (2), a data processing computer unit (24), a storage (54), in particular for the time-dependent stora...
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WO/1994/004890A1 |
In order to improve the accuracy of the measuring results of ultrasonic flow meters each individual flow meter is tested and adjusted prior to taking the flow meter in use. The adjustment of the flow meter comprises providing through the...
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WO/1994/000322A1 |
The invention concerns circuitry designed to recognize a short-circuit (or a line break) in an inductive circuit (1) connected via a high-resistance filter circuit (3) to a signal-processing circuit (2). The circuitry includes a monitori...
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WO/1993/026026A1 |
A shock sensor (300) comprises: a lead switch (310) fixed in the sensor case, and having a lead contact which changes from a first state to a second state by a magnetic force; a magnet (315) fixed apart from the lead switch by a given di...
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WO/1993/022756A1 |
Stationary speed-measurement devices used in traffic control have sensors laid in the road surface which react to vehicles that pass over them and which generate speed measurement values; when an admissible speed limit is exceeded by a v...
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WO/1993/022630A2 |
The invention concerns a device for testing the operability of a system for detecting heat-radiating, e.g. glowing or red-hot, particles carried in a particle stream, the device having at least two detectors (5) spaced a certain distance...
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WO/1993/021500A1 |
Method and device for acoustic flow measurement for measurement of the flow velocity (v) of gases and/or of quantities derived from same. A long-wave sound is transmitted into the measurement pipe (10) and, by means of two sound detector...
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WO/1993/020452A1 |
Described is a method of monitoring inductive rpm sensors. The invention is based on a prior art method in which line break and short circuit are detected with respect to the supply line. This prior art method is slightly improved so tha...
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WO/1993/007497A1 |
The description relates to a process with the aid of which the inaccuracies in the individual segments occurring during the manufacture of a pick-up wheel can be electronically corrected. To this end, in the recognised decelaration runni...
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WO/1993/006613A1 |
A crash sensor (10) for automobiles of the type having a movable mass (20) damped by air viscosity has switch contacts (32, 80, 90) that compensate for changes of air viscosity with temperature, a venting valve (22, 36, 38) that provides...
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WO/1993/003385A1 |
The proposal is for an acceleration sensor intended in particular to detect a motor vehicle collision. The sensor has a spring-mass system (1) with a stable initial position (4) and a stable deflection position (5). On acceleration in th...
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WO/1993/001074A1 |
A circuit for detecting defects in wheel sensors contains circuits which process and evaluate the sensor signals (s¿1?-s¿4?), determine the speed (v¿Rmax?, v¿Rmin?), deceleration and acceleration (a¿R?) of the individual wheels, and...
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WO/1992/017759A1 |
A fixed base plate (10) having a rigidity and a flexible base plate (20) are so provided as to face each other. The peripheries of both the base plates are fixed on a casing (40) of a device. An acting body (30) is bonded to the lower su...
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WO/1991/019200A1 |
Apparatus (100) for subjecting a test object (110), such as a motor vehicle crash sensor, to an acceleration pulse of a prescribed amplitude and shape, such as a half sine or haversine. A stationary support (101) providing a pivot point ...
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WO/1991/011757A1 |
A control system comprising a device to be controlled, a sensor to provide a signal indicative of a predetermined parameter, an electrical circuit to supply said signal to a managing means responsive to said signal to control said device...
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WO/1991/011722A1 |
An arrangement in a semiconductor accelerometer (1), e.g. consisting of etched silicon spring (2) comprising a resistance bridge (3), as well as a weight at the free end portion (2') of the spring, and in which a spring rupture indicator...
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WO/1991/010118A1 |
A sensor comprises a semiconductor pellet (10) having member (11) which receives the action of a force, a stationary member (13) fixed to the sensor body and a flexible portion (12) formed between the two members (11) and (13); a member ...
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WO/1991/009315A1 |
A system for a piezo electric transducer assembly including a transducer (2) and a signal processing circuit (20, 21, 22), characterised in that means are provided for enabling injection by way of a capacitor (18) test signals into the a...
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WO/1991/005266A1 |
This invention relates to an impact sensor which does not have any electric contacts exposed to the open air and any moving portions but has high durability and high reliability and can reliably detect collision of a car for a long perio...
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WO/1990/015337A1 |
A method of determining a calibration factor used to calibrate vehicle speed signals includes the steps of driving the vehicle over a measured distance, counting the pulses generated while driving the vehicle over the measured distance, ...
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WO/1990/000482A1 |
A crash sensor (12) for automobiles of the type including a ball (20) moving against viscous damping in a closed tube (24, 124, 224) has a power transistor (150) to switch power in the firing circuit (14, 19, 219). A resistance sensing c...
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WO/1989/011658A1 |
A sensor for measuring the motional parameter of an object in the event of an accident includes a support (H), by which it is attached to the object, a sensor element (M/K/C), which emits an electrical sensor signal in the event of a rel...
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