| Patents for G01H 11 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties (3,253) |
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| 10/17/2000 | US6131267 Method of manufacture of an encapsulated transducer |
| 10/04/2000 | EP1041537A2 Pressure tolerant transducer |
| 10/03/2000 | US6127767 Complementary electrostatic driving apparatus for microactuator with parasitic capacitances offset |
| 09/27/2000 | EP1039278A2 Strain gage vibration sensor |
| 09/21/2000 | CA2596275A1 Low profile acoustic sensor array and sensors with pleated transmission lines and related methods |
| 09/13/2000 | CN1056356C Device for detecting rock of car of elevator |
| 09/12/2000 | US6118208 Film tensioning apparatus |
| 08/30/2000 | CN1264828A Vibration detector and its method |
| 08/29/2000 | US6109110 Low frequency vibration sensor |
| 07/26/2000 | EP1022702A2 Self-powered wireless tranducer |
| 07/25/2000 | US6092422 Mechanical signal producer based on micromechanical oscillators and intelligent acoustic detectors and systems based thereon |
| 07/20/2000 | DE19963608A1 Broad band vibration sensor for machinery and machine tools includes two sensors and amplifiers and can be used conveniently with long lead and bandpass filters |
| 07/19/2000 | EP1020984A2 A 3-dimensional comb structure |
| 07/19/2000 | EP0824381B1 Elastomeric micro electromechanical systems |
| 07/11/2000 | US6087936 Vibration sensor |
| 06/28/2000 | EP1012547A1 Miniature silicon condenser microphone |
| 06/27/2000 | US6079274 Vibration wave detecting method and vibration wave detector |
| 06/21/2000 | CN1257206A Apparatus and method for mornitoring axle fracture or early gear slippage in gear system |
| 06/20/2000 | US6076405 Remote self-powered structure monitor |
| 06/20/2000 | US6076404 Micromechanical sensor including a single-crystal silicon support |
| 06/14/2000 | CN1256757A Capacitance detection system and method |
| 06/14/2000 | CN1256756A Impedance detection apparatus and method |
| 05/31/2000 | EP1004867A2 Apparatus and method for monitoring shaft cracking or incipient pinion slip in a geared system |
| 05/31/2000 | EP1003614A1 Monitor head for ultrasound control by pulse echo process |
| 05/30/2000 | US6069560 Detector for detecting vibrations |
| 05/10/2000 | EP0998661A2 Vibration monitoring system |
| 05/03/2000 | EP0997714A2 Remote self-powered structure monitor |
| 04/26/2000 | EP0783670B1 Electromechanical transducer |
| 04/26/2000 | CN2375954Y Piezoelectric sensor for burgler alarm |
| 04/06/2000 | WO2000019243A1 Ultrasound probes implementing waveguide shielding and active compensation of noise |
| 03/28/2000 | US6041657 Outdoor noise testing system |
| 03/22/2000 | EP0987554A1 Measuring circuit |
| 03/15/2000 | CN2369230Y Pen style vibration tester |
| 03/07/2000 | US6032533 Absolute amplitude sensor device |
| 02/23/2000 | CN1049731C 绝对式振幅传感器装置 Absolute amplitude of the sensor device |
| 02/22/2000 | US6026690 Vibration sensor using the capacitance between a substrate and a flexible diaphragm |
| 02/03/2000 | WO2000005001A1 Method of manufacturing a capacitive ultrasound transducer |
| 02/02/2000 | EP0975983A2 Capacitance detection system and method |
| 02/02/2000 | EP0975982A1 Impedance detection apparatus and method |
| 02/02/2000 | CN1243604A Piezoelectric/electrostretch device |
| 02/02/2000 | CN1243573A Mass sensor and mass detection method |
| 02/02/2000 | CN1243461A Method for making a sonoprobe |
| 01/18/2000 | US6014896 Remote self-powered structure monitor |
| 01/13/2000 | DE19829409A1 Oscillation detector using pressure sleeve e.g. knock sensor for car IC engine |
| 01/13/2000 | DE19829407A1 Oscillation detector with pressure sleeve e.g. knock sensor for car IC engine |
| 01/13/2000 | DE19829379A1 Oscillation detector using pressure sleeve e.g. knock sensor for car IC engine |
| 01/11/2000 | US6012334 Vibration wave detecting method and vibration wave detector |
| 01/04/2000 | CA2196256C Fastener characterization with an electromagnetic acoustic transducer |
| 12/21/1999 | US6006163 Active damage interrogation method for structural health monitoring |
| 12/08/1999 | CN1047107C Elastmeric micro electromechanical system |
| 12/07/1999 | CA2218876C Elastomeric micro electro mechanical systems |
| 11/25/1999 | WO1999042848A3 Capacitance detection system and method |
| 11/24/1999 | EP0959333A2 Vibration wave detecting method and vibration wave detector |
| 11/24/1999 | EP0959332A2 Vibration wave detecting method and vibration wave detector |
| 11/17/1999 | CN2349583Y Magnetic assembly for shock-sensor |
| 11/10/1999 | CN2348396Y Thermal stress washer for high-temp. (400 deg.C) piezoelectric accelerometer |
| 11/09/1999 | US5982054 Magnetostrictive device |
| 11/04/1999 | DE19917862A1 Ultrasound sensor for object detection, e.g. for automobile driving aid |
| 11/03/1999 | EP0953829A2 A method of and a device for acoustically monitoring the course of a process, such as a milking process |
| 11/03/1999 | CN1233757A Ultrasonic sensor |
| 11/02/1999 | US5977767 Nulling loop configuration for an electrically insulating cantilever magnetometer |
| 10/27/1999 | EP0951366A1 Method for making a sonoprobe |
| 10/27/1999 | CN1046028C Monitoring system for displaying the states of vibration of rotating wheel blades for turbine |
| 10/21/1999 | WO1999053475A1 Contact element for an ultrasound sensor |
| 10/21/1999 | WO1999053277A1 Sensor for body sounds |
| 10/06/1999 | CN1230693A Vibration sensor |
| 10/05/1999 | US5962787 Acceleration sensor |
| 09/28/1999 | US5959210 Vibration detecting apparatus and noise absorbent member |
| 09/22/1999 | EP0943903A1 Mass sensor and mass detection method |
| 09/15/1999 | EP0941457A1 Sensor for measuring acceleration and sound pressure |
| 09/07/1999 | US5948993 Amplified shear transducer |
| 09/02/1999 | WO1999044069A1 Knock sensor with low sensitivity dispersion |
| 08/26/1999 | WO1999042848A2 Capacitance detection system and method |
| 08/26/1999 | WO1999042847A1 Impedance detection apparatus and method |
| 08/25/1999 | EP0938143A1 Piezoelectric/electrostriction device |
| 08/24/1999 | US5943555 Micro mechanical component and production process thereof |
| 08/18/1999 | EP0935741A2 Surface micro-mechanic ultrasonic transducer |
| 08/17/1999 | US5939616 Knocking detecting sensor |
| 08/04/1999 | EP0707781B1 Solid state condenser and microphone devices |
| 07/28/1999 | EP0932044A1 Bimorph piezoelectric device for acceleration sensor and method of its manufacture |
| 07/20/1999 | US5925822 Microelectromechanical cantilever acoustic sensor |
| 07/20/1999 | US5925821 Device for measuring noise in a pipe traversed by a fluid |
| 07/13/1999 | US5923166 Electrically insulating cantilever magnetometer with mutually isolated and integrated thermometry, background elimination and null detection |
| 06/30/1999 | CA2255225A1 Capacitance measuring circuit for a capacitive sensor |
| 06/24/1999 | WO1999005486A3 Vibration monitoring system |
| 06/22/1999 | US5913829 Sensing device for acoustic energy |
| 06/17/1999 | DE19816456C1 Ultrasound sensor used in automobile |
| 06/09/1999 | EP0874978B1 Pressure wave sensor |
| 06/01/1999 | US5908987 Sensor employing a sliding ferrofluid mass in a coated, non-wetting, housing |
| 05/20/1999 | WO1999024175A1 Method for making a sonoprobe |
| 05/18/1999 | US5905044 Mass manufacturing method of semiconductor acceleration and vibration sensors |
| 04/27/1999 | US5897606 Shock vibration storing method |
| 04/20/1999 | US5895840 Vibration sensing device having slidable conductive member |
| 03/30/1999 | US5889731 Vibration detector |
| 03/23/1999 | US5885471 Shock resistant accelerometer for implantable medical device |
| 03/23/1999 | US5885222 Disposable acoustic pad sensors |
| 03/18/1999 | WO1999013518A1 Piezoelectric/electrostriction device |
| 03/18/1999 | WO1999013300A1 Mass sensor and mass detection method |
| 03/09/1999 | US5880351 Vibration sensing element and vibration sensor |
| 03/03/1999 | EP0671612B1 Knock sensor with beam accelerometer |