Patents
Sitemap › G01 - Measuring; Testing › G01H - Measurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves › G01H 11 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
Patents for G01H 11 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties (3,253)
12/2003
12/24/2003CN1132005C Vibration detector and its method
12/17/2003EP1370877A1 Vibration measurement apparatus
12/02/2003US6655214 Ultrasonic sensor having enhanced dynamic range
11/2003
11/25/2003US6651504 Acoustic sensors using microstructures tunable with energy other than acoustic energy
11/19/2003CN1128040C Intelligent in-situ machine tool cutting flutter controlling method
11/18/2003US6647760 Vibration pickup with pressure sleeve
11/13/2003US20030209094 Mass sensor and mass sensing method
11/05/2003CN1126944C Seal sensor process
11/04/2003US6640637 Vibration detecting apparatus and method thereof
10/2003
10/29/2003CN1126430C Acoustic transducer
10/28/2003US6639339 Capacitive ultrasound transducer
10/23/2003WO2003087737A1 Piezoelectric vibration sensor
10/23/2003CA2482007A1 Piezoelectric vibration sensor
10/22/2003CN1451098A Geophone and method of manufacturing a geophone
10/14/2003US6631641 Device and method for determining frequency and amplitude of an oscillating structure, especially for measuring acceleration or rotational rates
10/08/2003CN1123762C Method for analyzing surficial acoustic field of high speed moving object
09/2003
09/25/2003US20030179103 Geophone and method of manufacturing a geophone
09/25/2003US20030177835 Ball type vibration sensor
09/23/2003US6624551 Two-way mechano-electric transducer
09/17/2003EP1344069A2 Impact transmitter for reciprocating machines
09/16/2003US6619126 Mechano-electrical sensor
09/04/2003WO2003073051A1 Acoustic sensor for monitoring machining processes in machining tolls
09/04/2003US20030164761 High and low frequency band dual output transducer
09/04/2003US20030164046 Piezoelectric sensor
09/02/2003US6613601 Ultrananocrystalline diamond cantilever wide dynamic range acceleration/vibration/pressure sensor
09/02/2003US6612190 Mass sensor and mass sensing method
08/2003
08/27/2003CN1119628C Mass sensor and mass detection method
08/21/2003US20030158694 Inferential signal generator for instrumented equipment and processes
08/21/2003US20030154765 Vibration pickup comprising a pressure sleeve
08/20/2003EP1336081A2 Inferential signal generator for instrumented equipment and processes
08/20/2003CN1437701A A mechano-electrical sensor for sensing force or vibration
08/20/2003CN1437456A Two-Way Mechano-electrical transducer
08/19/2003US6608427 High-sensitivity flexible ceramic sensor
08/12/2003US6604433 Ultrasonic transducer and ultrasonic flowmeter
08/05/2003US6603242 Piezoelectric transducer apparatus having independent gain and phase characteristics functions of the fourth-order partial differential equations
07/2003
07/29/2003US6598479 Integral magnet vibration sensor
07/23/2003EP0935741B1 Surface micro-mechanic ultrasonic transducer with integrated control circuit, and array
07/23/2003CN1115661C Supersonic Sensor and its mfg. method
07/15/2003US6592525 Micro-machined ultrasonic transducer (MUT) having improved sensitivity
07/08/2003US6588279 Impact transmitter for reciprocating machines
07/02/2003EP1322928A1 Vibration sensor for fixing directly or indirectly to a vibrating component
07/02/2003CN1427949A Turbine engine foreign object damage detection system
07/02/2003CN1427248A Sound wave sensor
06/2003
06/18/2003DE20219417U1 Acoustic sensor registering screws and rivets on rebound onto sensor plate
06/10/2003US6577559 Electronic converter for converting an acoustic signal into a pseudo-digital signal, timepiece including such a converter and two-directional communication method via acoustic waves
06/04/2003CN1110695C 压力套筒 Pressure sleeve
06/03/2003US6571445 Method for making acoustic transducer
05/2003
05/28/2003EP1314052A1 Geophone and method of manufacturing a geophone
05/22/2003WO2003042687A1 Ultrasonic probe
05/22/2003WO2003042685A1 Ultrasonic sensor having enhanced dynamic range
05/21/2003EP1313089A2 Measurement device for acquisition of vibration signals, especially pressure pulses in a fluid
05/21/2003EP1311811A1 A mechano-electrical sensor for sensing force or vibration
05/20/2003CA2187486C Differential charge amplifier for a piezoelectric sensor
05/15/2003US20030089173 Ultrasonic sensor having enhanced dynamic range
05/13/2003US6561034 Ultrasonic sparse imaging array
05/02/2003EP1306659A2 Single tube downhole densitometer
04/2003
04/29/2003US6556939 Inferential signal generator for instrumented equipment and processes
04/29/2003CA2409884A1 Single tube downhole densitometer
04/16/2003EP1301762A1 Piezoelectric sensor
04/10/2003US20030069713 Measuring arrangement with sensor having identification unit
04/09/2003EP1300657A2 Sensor with an external memory unit
04/08/2003US6543281 Downhole densitometer
04/03/2003US20030061882 Ultrasonic sparse imaging array
03/2003
03/27/2003US20030056594 Vibration sensor for fixing directly or indirectly to a vibrating component
03/27/2003US20030056593 Multi-level machine vibration tester marker pen
03/20/2003WO2003022156A1 Cylindrical ultrasound receivers and transceivers formed from piezoelectric film
03/19/2003EP1292228A1 Two-way mechano-electrical transducer
03/18/2003US6532795 Vibration pickup with a pressure sleeve
02/2003
02/25/2003CA2238205C Vibration wave detecting method and vibration wave detector
02/18/2003US6520019 Ultrasound sensor
02/13/2003WO2003011481A2 Micro-machined ultrasonic transducer (mut) having improved sensitivity
02/13/2003US20030029028 Method and apparatus of manufacturing non-resonance knock sensor
02/13/2003DE10138434C1 Fokussierender elektroakustischer Wandler und Verfahren zum Test seiner Ausgangsleistung The focusing electroacoustic transducer and method for testing of its output
02/12/2003EP1283517A2 Focussed electro-acoustic transducer and method for testing its output power
02/06/2003US20030028103 Micro-machined ultrasonic transducer (MUT) having improved sensitivity
02/06/2003US20030026435 Focussing electroacoustic transducer and method for testing its output power
02/05/2003CN1395085A Extraction and monitoring method of half-speed vortex on-line stability characteristics of high-speed rotating machine
01/2003
01/30/2003WO2002050554A3 Impact transmitter for reciprocating machines
01/28/2003US6510738 Device and method for measuring vibration
01/23/2003US20030015039 Vibration detecting apparatus and method thereof
01/16/2003US20030011283 Piezoelectric/electrostrictive device
01/09/2003US20030006678 High-sensitivity flexible ceramic sensor
01/08/2003EP1273203A1 Method of manufacturing a membrane sensor
01/08/2003EP1272736A2 Turbine engine foreign object damage detection system
01/02/2003EP1271155A1 Micromechanical component comprising a diamond layer, and production process
01/02/2003EP1270090A1 Improved vibration monitoring system and method
12/2002
12/31/2002WO2002003042A1 Piezoelectric sensor
12/31/2002US6499350 Turbine engine foreign object damage detection system
12/27/2002WO2001077694A9 Ultrananocrystalline diamond cantilever wide dynamic range acceleration/vibration/pressure sensor
12/24/2002US6498501 Measuring circuit
12/24/2002US6497140 Cavitation sensor
12/19/2002US20020192637 Biological Sensor
12/18/2002EP1266539A1 Acoustic transducer panel
12/12/2002US20020184940 Single tube downhole densitometer
12/11/2002EP1263616A1 System, tyre and method for determining the behaviour of a tyre in motion
12/10/2002US6493288 Wide frequency band micromachined capacitive microphone/hydrophone and method
12/10/2002US6490929 Vibration dosimeter worn by an operator
12/05/2002US20020178831 Force sensing device
12/05/2002US20020178803 Downhole densitometer
11/2002
11/27/2002EP0998661B1 Vibration monitoring system
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