| Patents for G01P 21 - Testing or calibrating of apparatus or devices covered by the other groups of this subclass (4,237) |
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| 02/23/1995 | WO1995005608A1 Interface circuit for compensation of sensor output variations |
| 02/23/1995 | WO1995005607A2 Transducer testing system for low frequency vibrations |
| 02/23/1995 | DE4344295C1 Calibration device for a contactless optical device for measuring speed and/or distance travelled |
| 02/23/1995 | CA2169534A1 Transducer testing system for low frequency vibrations |
| 02/22/1995 | EP0639262A1 Device for testing the operability of a system for detecting heat-radiating particles carried in a particle stream. |
| 02/21/1995 | US5391283 Output signal indicative of measured electrode displacement; comparing exciting voltage signal and output signal as indication of a characterisitic of acceleration sensor |
| 02/21/1995 | US5390367 Helmet and shoulder pads having inflatable protective means to protect cervical spine |
| 02/16/1995 | WO1995004879A1 Method for error correction in measurement of engine speed |
| 02/15/1995 | EP0638782A1 Rotation rate sensor with built in test circuit |
| 02/15/1995 | EP0638194A1 Device for testing the operatability of speed-measurement devices used in traffic control |
| 02/14/1995 | US5390019 Laser gyro built in test method and apparatus |
| 02/09/1995 | WO1995004285A1 Dynamic air gap detector |
| 02/07/1995 | US5387819 Crash detection apparatus of air bag system |
| 02/02/1995 | WO1995003597A1 Method and apparatus for calibrating three-dimensional space for machine vision applications |
| 02/02/1995 | CA2165664A1 Method and apparatus for calibrating three-dimensional space for machine vision applications |
| 01/31/1995 | US5385047 Angular speed measuring device |
| 01/26/1995 | WO1995002828A1 Impact sensing system |
| 01/26/1995 | WO1995002827A1 Automatic test parameters compensation of a real time fluid analysis sensing device |
| 01/18/1995 | EP0634661A1 Method for calibrating a single point impact sensor |
| 01/11/1995 | EP0633474A1 Short circuit detector for sensors |
| 01/10/1995 | US5381334 Fault diagnosis apparatus for crew protecting apparatus in vehicle |
| 01/03/1995 | US5377523 Acceleration sensor suitable for self-checking and a self-checking circuit therefore |
| 12/28/1994 | EP0631142A1 Acceleration detector |
| 12/27/1994 | US5377127 Software calibration of speed sensors |
| 12/27/1994 | US5375468 Acceleration sensor unit having self-checking function |
| 12/22/1994 | WO1994029814A1 Vehicle crash simulator system for testing crash sensors |
| 12/20/1994 | US5374793 Acceleration sensor |
| 12/20/1994 | US5373722 Apparatus for performance testing acceleration sensors |
| 12/01/1994 | DE4317240A1 Device for measuring an acceleration |
| 11/29/1994 | US5369580 Yawing-momentum detecting apparatus for a vehicle, a detecting method thereof, and motion controlling apparatus for a vehicle, utilizing the detecting apparatus |
| 11/29/1994 | US5369231 Quick-response accelerometer with increased contact dwell time |
| 11/22/1994 | US5365768 Sensor |
| 11/15/1994 | US5365114 Vehicle passenger restraint device for use in automotive vehicle or the like |
| 11/15/1994 | US5363688 Method of calibrating motion detectors within a scaled environment |
| 11/09/1994 | EP0623825A1 Accelerometer sense element |
| 11/08/1994 | US5363303 Control system for vehicle safety device |
| 11/03/1994 | DE4414952A1 Accelerometer and airbag system using the latter |
| 11/03/1994 | DE4413194A1 Fault diagnostic unit for a control circuit of a device for protecting the passengers of vehicles |
| 10/27/1994 | WO1994024571A1 Controlled acceleration platform |
| 10/18/1994 | US5357392 Motor drive device comprising a tacho-generator that can be configured as a back-up motor |
| 10/18/1994 | US5357196 Circuit for converting a frequency of an input signal so a signal having a digital value corresponding to the frequency |
| 10/18/1994 | US5355716 Generalized rotary shock and impact testing machine |
| 10/18/1994 | US5355712 Method and apparatus for thermally actuated self testing of silicon structures |
| 10/18/1994 | CA2032340C Acceleration detecting system |
| 10/11/1994 | US5353642 Centrifugal type acceleration measuring device |
| 10/04/1994 | US5351519 Circuit arrangement for evaluating and testing a capacitive sensor |
| 10/04/1994 | CA1332203C Method of calibrating vehicle speed signals |
| 09/27/1994 | US5351185 Malfunction checking control system which checks identification data stored in RAM |
| 09/20/1994 | US5349347 Method and apparatus for correcting dynamically induced errors in static pressure, airspeed and airspeed rate |
| 09/20/1994 | US5347841 Self-testing transducer curcuit |
| 09/06/1994 | US5345402 Vehicle crash simulator system for testing crash sensors |
| 09/06/1994 | US5343748 Accelerometer with strain isolated sensor |
| 09/06/1994 | US5343731 Semiconductor accelerometer |
| 08/31/1994 | EP0613012A1 Capacitive accelerometer with circuit for correcting the disturbing effects of parasitic capacitances |
| 08/24/1994 | EP0611348A1 Process for cornering identification. |
| 08/09/1994 | US5337260 Method for calibrating a single point impact sensor |
| 08/04/1994 | WO1994017368A1 Method and device for measuring the discharge in partly filled or completely filled ducts and in open channels |
| 08/04/1994 | DE4302426A1 Positioning and=or speed measurement of bodies producing signature signal |
| 08/02/1994 | CA2013700C Air bag firing circuit |
| 07/13/1994 | EP0606115A1 Detector having self-calibration function |
| 07/07/1994 | DE4244560A1 Acceleration detection method providing 2-dimensional acceleration measurements |
| 06/23/1994 | WO1994013976A1 Mechanical linear guide |
| 06/21/1994 | CA1330265C Self-calibrating accelerometer |
| 06/16/1994 | DE4241822A1 Error detection circuit for evaluation of sensor signals - detects when sensor signal enters one of two defined error regions using bridge circuit, and receives signals via A=D converter |
| 06/15/1994 | EP0602013A2 Calibration apparatus of angular velocity sensor in self-contained navigational system |
| 06/14/1994 | US5321638 Calibrated sensor systems and methods of manufacturing same |
| 06/01/1994 | EP0598919A1 Shock sensor |
| 05/26/1994 | WO1994011742A1 Regulated negative calibration pulse generator |
| 05/25/1994 | EP0597879A1 Acceleration sensor and process for its production |
| 05/04/1994 | EP0594802A1 Method and device in acoustic flow measurement for ensuring the operability of said measurement |
| 04/27/1994 | EP0594501A1 Helmet |
| 04/26/1994 | US5307274 Zero-point correction device for a gravity-type accelerometer |
| 04/26/1994 | US5305629 Regulated negative calibration pulse generator |
| 04/23/1994 | CA2108721A1 Helmet |
| 04/13/1994 | EP0592205A1 Semiconductor sensor with fault detecting circuit |
| 04/06/1994 | EP0590448A1 Method for calibrating a calorimetric fluid flow monitor |
| 03/31/1994 | WO1994007253A1 Quick-response accelerometer with increased contact dwell time |
| 03/31/1994 | WO1994006657A1 Process for cornering identification |
| 03/31/1994 | DE4302399A1 Electronic passenger restraint device testing system - evaluates signals provided by acceleration sensors during normal operation of vehicle |
| 03/30/1994 | EP0589799A1 Incremental sensor with failure detection |
| 03/30/1994 | EP0589466A1 Impact sensor for vehicle safety restraint system |
| 03/29/1994 | US5299131 Method of correcting the rotating speed of vehicle wheels sensed by wheel sensors |
| 03/22/1994 | US5295387 Active resistor trimming of accelerometer circuit |
| 03/22/1994 | US5295386 Apparatus for detecting acceleration and method for testing this apparatus |
| 03/17/1994 | WO1994006100A1 Process and device for detecting, recording and evaluating from case to case operational and/or driving data of a vehicle |
| 03/17/1994 | DE4230481A1 Verfahren zur Kurvenfahrterkennung A method for cornering detection |
| 03/16/1994 | EP0586942A1 A wheel speed sensor input circuit with sensor status detection |
| 03/11/1994 | CA2105638A1 A wheel speed sensor input circuit with sensor status detection |
| 03/08/1994 | US5293125 Self-aligning tachometer with interchangeable elements for different resolution outputs |
| 03/03/1994 | WO1994004890A1 Flow meter |
| 03/02/1994 | EP0584566A2 Method for fault detection in the analysis of output signals of an r.p.m. sensor |
| 02/22/1994 | US5287724 Method for calibrating an accelerometer |
| 02/22/1994 | US5287562 Helmet to protect cervical spine against axial impact forces |
| 02/15/1994 | CA1326964C Wheel diameter calibration for a railway vehicle |
| 02/10/1994 | DE4226224A1 Monocrystalline silicon@ force sensor - connects central deformable section to outer base by carriers which support piezo-resistances, and has meandering tortuous path conductive tracks on deformable section for passage of test current |
| 02/10/1994 | DE4226082A1 Monitoring sensors which produce electrical analog signals - comparing fluctuations of sensor signals with plausible fluctuations due to observes process |
| 02/09/1994 | EP0582512A1 Device for displaying a parameter value |
| 02/01/1994 | US5282387 Shock sensor |
| 02/01/1994 | CA1326712C Gas rate sensor |
| 01/20/1994 | DE4223349A1 Angular speed sensor e.g. for vehicle - has sensors of partial silicon structure, arranged on rotating plate, for measuring forces occurring in two further orthogonal axes |