| Patents for G01H 13 - Measuring resonant frequency (1,015) |
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| 09/03/2009 | US20090217759 Method of Determining Sublimate in Thermoset Film with Qcm Sensor |
| 09/02/2009 | EP2096652A1 Method and device for detecting the natural frequencies of vibration of a turbine blade |
| 08/20/2009 | WO2009022245A3 Mechanical resonance detection system |
| 07/15/2009 | CN101482430A Method for measuring natural frequency of wheel |
| 07/14/2009 | US7561976 Method and system for monitoring the performance of a pipe containing a pressurised fluid |
| 07/08/2009 | CN100510677C Device amd method for evaluating rigidity of bearing device, device and method for manufacturing bearing device, and bearing device |
| 06/23/2009 | US7551285 Methods and apparatus for spectroscopic imaging of materials in an array |
| 06/11/2009 | US20090145231 Shear measuring method and its device |
| 06/04/2009 | US20090139333 Ultrasonic Probing Method and Apparatus Therefor Utilizing Resonance Phenomenon |
| 05/12/2009 | US7530272 Multiple frequency ultrasound apparatus |
| 05/06/2009 | CN101424665A Panel inspection apparatus and inspection method |
| 04/29/2009 | EP2051628A2 Resonant coil for measuring specimen condition |
| 04/08/2009 | CN101403841A Automatic chucking frequency measurement apparatus of crystal frequency modulation machine |
| 04/07/2009 | US7513752 Beam pump dynamic load monitoring and methods |
| 03/31/2009 | US7509860 System for measuring resonant frequency and delay time of quartz crystal microbalance |
| 03/18/2009 | CN201210107Y Golf club characteristic measurement device |
| 03/17/2009 | US7503216 Device and method for evaluating rigidity of bearing device, device and method for manufacturing bearing device, and bearing device |
| 02/19/2009 | WO2009022245A2 Mechanical resonance detection system |
| 02/19/2009 | US20090045341 Systems for observing reactions using infrared imaging |
| 01/28/2009 | CN101354304A Method and apparatus for acquiring noise excitation load in railway carriage |
| 01/28/2009 | CN101354284A Method for testing resonance frequency of high range piezoresistance acceleration sensor |
| 01/22/2009 | US20090019934 Micro-sensor for sensing chemical substance |
| 01/02/2009 | DE19917372B4 Meßgerät zum Erfassen der Temperatur und der Schwingungen einer Oberfläche Measuring instrument for detecting the temperature and the vibration of a surface |
| 01/01/2009 | US20090002708 Methods and apparatus for spectroscopic imaging of materials in an array |
| 12/04/2008 | WO2008113586A3 Method and device for operating an ultrasonic tool |
| 12/02/2008 | CA2334537C Method and apparatus for determining a frequency at which a resonator resonates |
| 11/27/2008 | US20080294354 System and method for detecting structural damage |
| 11/27/2008 | US20080289419 System for analysing the frequency of resonating devices |
| 11/26/2008 | EP1995575A2 System for analysing the frequency of resonant devices |
| 11/06/2008 | DE102004036359B4 Verfahren zur Ermittlung einer Aussage über die Sicherheit einer mit einer Schwingsonde in einem Behälter durchgeführten Flüssigkeits-Füllstandsmessung Method for determining a statement about the safety of a study carried out with a vibrating probe in a tank liquid level measurement |
| 11/04/2008 | US7444874 Method of determining damping of an article of manufacture and system for determining damping performance |
| 10/15/2008 | CN100425307C Method and apparatus for measuring and orienting golf club shaft |
| 10/08/2008 | EP1977236A2 Hemostasis analyzer and method |
| 09/25/2008 | WO2008113586A2 Method and device for operating an ultrasonic tool |
| 09/25/2008 | US20080229828 Establishing reputation factors for publishing entities |
| 09/25/2008 | DE102007013055A1 Verfahren und Vorrichtung zum Bestimmen der Frequenzkennlinie und zum Betreiben eines Ultraschallwerkzeugs Method and apparatus for determining the frequency characteristic, and for operating an ultrasound tool |
| 09/24/2008 | CN101270991A System for measuring interfere type optic fiber gyroscope eigenfrequency and half-wave voltage adopting square wave modulation |
| 09/23/2008 | CA2427213C Method for determining a vibratory excitation spectrum tailored to physical characteristics of a structure |
| 09/16/2008 | US7424827 Inspecting method of elastic body, inspecting apparatus thereof, and dimension predicting program thereof |
| 09/09/2008 | US7421899 Resonance method for determining the spring constant of scanning probe microscope cantilevers using MEMS actuators |
| 08/27/2008 | CN101251411A Apparatus for measuring impeller blade |
| 08/27/2008 | CN101251410A Method for failure analysis of turbine rotary clapboard post-moving blade |
| 08/20/2008 | CN201104240Y Semiconductor laser single light source shock excitation measuring device |
| 08/07/2008 | US20080184801 System for measuring resonant frequency and delay time of quartz crystal microbalance |
| 08/07/2008 | US20080184800 Vibrating Wire Sensor Using Spectral Analysis |
| 07/31/2008 | US20080183308 Resonant frequency identification |
| 07/15/2008 | US7398671 Micromechanical sensor element |
| 07/10/2008 | DE102007001201A1 Verfahren zur Ermittlung von Resonanzfrequenzen eines magnetgelagerten Rotors Procedure for the determination of resonant frequencies of a magnetically levitated rotor |
| 07/03/2008 | US20080156099 Sensing device |
| 07/03/2008 | US20080156098 Monolithic antenna excited acoustic transduction device |
| 07/03/2008 | US20080156097 Sensing Device |
| 06/18/2008 | CN101201290A Method and system for identifying test frequency in conductor vibration test |
| 06/17/2008 | US7387033 Single-wire sensor/actuator network for structure health monitoring |
| 06/11/2008 | EP1617752A4 Methods and devices for mechanical resonator evaluation |
| 05/29/2008 | WO2008061319A1 Micromechanical resonant arrays and methods of making |
| 05/29/2008 | WO2008020351A3 Resonant coil for measuring specimen condition |
| 05/29/2008 | US20080122455 Passage detection apparatus of object |
| 05/28/2008 | CN101187575A Multi-path distributed information detection and processing device |
| 05/22/2008 | US20080118759 Mechanical resonators fabricated out of bulk-solidifying amorphous metal alloys |
| 04/29/2008 | US7364697 Apparatus comprising infrared camera for rapidly screening arrays of diverse materials on single substrate surfaces; combinatorial synthesis and characterization of libraries of diverse materials |
| 04/09/2008 | EP1909079A1 Oscillatory wave detecting apparatus |
| 04/03/2008 | US20080078233 Apparatus and method for measuring an environmental condition |
| 03/26/2008 | CN101149275A Single light source resonance sensor for excitation and vibration testing |
| 03/13/2008 | WO2008001798B1 Oscillating wave detection method and device |
| 03/12/2008 | EP1092133B1 Method and apparatus for determining a resonant frequency of a resonator containing a gas composition |
| 02/28/2008 | US20080047346 Nonlinear micromechanical resonator |
| 02/27/2008 | EP1891405A2 Method and apparatus for measuring film thickness and film thickness growth |
| 02/26/2008 | US7334452 Method for characterizing materials by using a mechanical resonator |
| 02/07/2008 | US20080030714 High power acoustic resonator with integrated optical interfacial elements |
| 01/29/2008 | US7322243 Acoustic wave etch rate sensor system |
| 01/29/2008 | CA2446633C Diagnostic for poorly tuned control loops |
| 01/17/2008 | US20080011083 Resonance Method for Determining the Spring Constant of Scanning Probe Microscope Cantilevers using MEMS Actuators |
| 01/03/2008 | WO2008001798A1 Oscillating wave detection method and device |
| 12/26/2007 | CN101094743A Method and system for determining a gap between a vibrational body and fixed point by monitoring the resonant frequency of the vibrational body |
| 12/20/2007 | US20070294042 Cantilever Control Device |
| 11/29/2007 | US20070272018 Determination of remaining useful life of gas turbine blade |
| 11/15/2007 | DE102006021492A1 Verfahren zum Einstellen der Resonanzfrequenz eines Schwingungsabschnitts für einen Sensor A method of adjusting the resonant frequency of a vibrating portion for a sensor |
| 11/14/2007 | EP1855093A1 Method for adjusting the resonance frequency of an oscillation section for a sensor |
| 11/08/2007 | US20070256499 Machine and operating environment diagnostics, detection and profiling using sound |
| 11/01/2007 | US20070251322 Sensing Apparatus |
| 10/17/2007 | CN100343661C Method for measuring complex Young's modulus in fluid dynamic spectrum |
| 10/10/2007 | EP1841560A1 Method and system for determining a gap between a vibrational body and fixed point by monitoring the resonant frequency of the vibrational body |
| 10/02/2007 | US7275436 Method and apparatus for measuring film thickness and film thickness growth |
| 09/26/2007 | EP1339465A4 Method and apparatus for measuring and orienting golf club shaft |
| 09/25/2007 | CA2289893C Apparatus and method for monitoring shaft cracking or incipient pinion slip in a geared system |
| 09/19/2007 | CN100337707C Method and apparatus for measuring and orienting golf club shaft |
| 09/18/2007 | US7272525 Portable fluid sensing device and method |
| 09/18/2007 | US7270005 Transducer-based sensor system |
| 09/12/2007 | CN101034116A Resonant cavity special for testing decimeter wave dielectric medium capable of adding DC bias and testing method thereof |
| 08/30/2007 | US20070199379 Metal loss rate sensor and measurement using a mechanical oscillator |
| 08/30/2007 | US20070199378 System and method for monitoring a filter |
| 08/29/2007 | EP1825230A1 Vibratory measuring sensor |
| 08/21/2007 | US7259574 Sensor device for measuring frequency and amplitude of varying force signals |
| 08/15/2007 | CN1332187C Method and apparatus for model based shrouded bellows stiffness determination |
| 08/09/2007 | WO2007004665B1 Oscillatory wave detecting apparatus |
| 08/09/2007 | US20070180913 Resonance frequency determining method, resonance frequency selecting method, and resonance frequency determining apparatus |
| 07/31/2007 | US7249511 Method of detecting resonant frequency, method of selecting resonance frequency, and device for detecting resonant frequency sensor |
| 07/26/2007 | US20070169553 Self-exciting, self-sensing piezoelectric cantilever sensor |
| 07/12/2007 | US20070157728 Ultrasonic sensor transmitting and receiving ultrasonic frequencies adjusted according to temperature |
| 07/05/2007 | WO2007047961A3 Hemostasis analyzer and method |