| Patents for G01H 13 - Measuring resonant frequency (1,015) |
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| 07/05/2007 | US20070151341 Device and method for measuring flexural damping of fibres |
| 06/27/2007 | EP1799473A1 Microwave sensor for high-precision level measurement in a pneumatic spring |
| 06/12/2007 | US7231094 Low-power signal processing using MEMS |
| 06/12/2007 | US7228740 Noninvasive characterization of a flowing multiphase fluid using ultrasonic interferometry |
| 06/07/2007 | US20070125176 Energy harvesting device and methods |
| 06/07/2007 | US20070125174 Ultrasonic inspection system and method |
| 06/06/2007 | EP1792693A2 Device for moving the end effector of a measuring or manipulating arrangement and method for determining the contact force or the position of an end effector |
| 05/23/2007 | CN1967176A Piezoelectric resonant diaphragm type sensor |
| 05/23/2007 | CN1967146A Measurement for eigenfrequency of interferometric type fiber-optic gyroscope by using asymmetrical square wave modulation method |
| 05/17/2007 | US20070107516 Surface acoustic wave sensor |
| 05/03/2007 | WO2007048821A2 Fitting for holding a probe |
| 05/02/2007 | CN1957252A Multiple modes acoustic wave sensor |
| 04/26/2007 | WO2007047961A2 Hemostasis analyzer and method |
| 04/26/2007 | US20070093976 Repair announcement method and apparatus for electric injection molding machine |
| 04/26/2007 | US20070089516 Chemical micromachined microsensors |
| 04/26/2007 | US20070089515 Piezoelectric cantilever sensors |
| 04/19/2007 | WO2007044482A2 Chemical micromachined microsensors |
| 04/12/2007 | DE10106801B4 Schwingungsmessverfahren und Frequenzmessvorrichtung Vibration measurement methods and frequency measuring device |
| 04/03/2007 | US7199367 System and method for defect detection by inducing acoustic chaos |
| 03/29/2007 | US20070068257 Method of measuring the thickness of layers by surface waves |
| 03/29/2007 | US20070068256 Estimating propagation velocity through a surface acoustic wave sensor |
| 03/22/2007 | US20070062287 Rupture event sensors |
| 03/20/2007 | US7191656 Substrate crack inspecting method, substrate crack inspection apparatus, and solar battery module manufacturing method |
| 03/01/2007 | US20070045544 System and method for defect detection by inducing acoustic chaos |
| 02/13/2007 | US7174786 Quality testing process |
| 02/08/2007 | WO2006138678A3 Method and apparatus for measuring film thickness and film thickness growth |
| 01/25/2007 | US20070017293 Soft support systems and methods for dynamically testing structures |
| 01/23/2007 | US7165452 Measuring method, measurement-signal output circuit, and measuring apparatus |
| 01/17/2007 | EP1744379A1 Elastic body inspection method, inspection device, and dimension prediction program |
| 01/11/2007 | WO2007004665A1 Oscillatory wave detecting apparatus |
| 01/11/2007 | US20070006652 Load measuring sensor and method |
| 01/11/2007 | CA2614135A1 Vibration-wave detector |
| 12/28/2006 | US20060288782 Method and apparatus for measuring grammage |
| 12/21/2006 | WO2006135067A1 Transducer and measuring instrument comprising the same |
| 12/21/2006 | US20060283249 Acoustic wave etch rate sensor system |
| 12/14/2006 | US20060277998 Method and device for local spectral analysis of an ultrasonic signal |
| 12/13/2006 | EP1730512A2 Multiple modes acoustic wave sensor |
| 12/06/2006 | EP1729124A2 Apparatus and method for detection of the flight state of a micro object |
| 11/28/2006 | US7140254 Apparatus for generating and measuring bending vibration in a non-ferromagnetic pipe without physical contact |
| 11/23/2006 | WO2006084263A3 Multi-position fluid resonator sensors and methods |
| 11/16/2006 | US20060254355 Electrical switching apparatus and method employing active acoustic sensing to detect an electrical conductivity fault of a power circuit |
| 11/14/2006 | US7134341 Methods and devices for determining the resonance frequency of passive mechanical resonators |
| 11/09/2006 | US20060251264 Dip filter frequency characteristic decision method |
| 11/02/2006 | DE102004045528B4 Vibrationssensor Vibration sensor |
| 10/26/2006 | US20060236765 Method for the mechanical characterization of a metallic material |
| 10/17/2006 | US7122801 System and method for generating chaotic sound for sonic infrared imaging of defects in materials |
| 09/28/2006 | US20060217902 Method and system for monitoring the performance of a pipe containing a pressurised fluid |
| 09/07/2006 | US20060196271 Acoustic array analytical system |
| 08/31/2006 | WO2005106452A3 Multiple modes acoustic wave sensor |
| 08/29/2006 | US7096735 System for forecasting slope failure based on sounds from the earth |
| 08/17/2006 | US20060179947 Determining the extent of a lateral shadow zone in an ultrasound inspection method |
| 08/10/2006 | WO2006084263A2 Multi-position fluid resonator sensors and methods |
| 08/10/2006 | DE102005012916B3 Cylinder resonant frequency determining method for rotary printing press, involves determining resonant frequency by generating products in number of periods with set rotation speed |
| 07/27/2006 | US20060162455 Method and device for measuring vibration frequency of multi-cantilever |
| 07/13/2006 | WO2006074101A1 Method and system for determining a gap between a vibrational body and fixed point by monitoring the resonant frequency of the vibrational body |
| 07/13/2006 | US20060150736 Apparatus and method for analyzing semiconductor device |
| 07/11/2006 | US7073370 Method and apparatus for characterizing materials by using a mechanical resonator |
| 06/29/2006 | US20060137454 Resonance frequency sensing method, resonance frequncy selecting method, and resonance frequency sensor |
| 06/29/2006 | US20060137453 Sensing apparatus |
| 06/29/2006 | US20060137452 Method and apparatus for measuring film thickness and film thickness growth |
| 06/20/2006 | US7065474 Frequency rectification system: apparatus and method |
| 06/14/2006 | EP1669738A2 Infrared spectroscopy and imaging of libraries |
| 06/13/2006 | CA2325139C System and method for monitoring vehicle conditions affecting tires |
| 06/08/2006 | US20060117854 Active scan velocity control for torsional hinged MEMS scanner |
| 06/07/2006 | CN1784589A Method and system for monitoring the performance of a pipe containing a pressurised fluid |
| 06/06/2006 | US7057176 System and method for multiple mode flexible excitation in sonic infrared imaging |
| 06/01/2006 | WO2006057566A1 Tree stem or log appraising apparatus |
| 06/01/2006 | WO2005103674A3 Portable fluid sensing system and sensing method using a flexural resonator |
| 05/10/2006 | CN1768881A Method and apparatus for measuring and orienting golf club shaft |
| 05/02/2006 | US7036375 QCM sensor and QCM sensor device |
| 04/18/2006 | US7031094 Apparatus and method for detecting and compensating for resonance frequency in data storage system |
| 04/12/2006 | CN1251402C Oscillator characteristics testing method |
| 03/30/2006 | DE102004045528A1 Vibration sensor for use in vibration analysis system, has sensor structure arranged such that input signal parts of sensor signal having natural frequency is strengthened and signals parts with other frequencies are suppressed |
| 03/16/2006 | WO2006027267A1 Microwave sensor for high-precision level measurement in a pneumatic spring |
| 03/08/2006 | EP0934515B1 Infrared spectroscopy and imaging of libraries |
| 03/08/2006 | CN1744435A Frequency rectification system, apparatus and method |
| 03/07/2006 | US7010376 Diagnostic for poorly tuned control loops |
| 02/23/2006 | US20060037399 Fouling and corrosion detector for process control industries |
| 02/14/2006 | US6998616 System and method for acoustic chaos and sonic infrared imaging |
| 02/14/2006 | US6997056 Method and apparatus for measuring and orienting golf club shaft |
| 02/14/2006 | US6997039 Carbon nanotube based resonant-circuit sensor |
| 02/09/2006 | US20060031030 Portable fluid sensing device and method |
| 02/09/2006 | DE29825207U1 Vorrichtung zur Charakterisierung von Materialien mittels eines mechanischen Resonators A device for the characterization of materials by means of a mechanical resonator |
| 02/07/2006 | US6993970 Method and apparatus for measuring and orienting golf club shaft |
| 01/31/2006 | US6990865 Method and apparatus for measuring and orienting golf club shaft |
| 01/25/2006 | EP1617752A2 Methods and devices for determining the resonance frequency of passive mechanical resonators |
| 01/12/2006 | US20060009930 Monitoring and correcting for non-translational motion in a resonance measurement apparatus |
| 12/29/2005 | US20050284224 Inspecting method of elastic body, inspecting apparatus thereof, and dimension predicting program thereof |
| 12/27/2005 | US6978656 Transducer-based sensor system and method |
| 12/14/2005 | EP1604170A2 Method and system for monitoring the performance of a pipe containing a pressurised fluid |
| 12/08/2005 | WO2004096007A3 Methods and devices for mechanical resonator evaluation |
| 12/06/2005 | US6972553 Sensor readout circuit |
| 12/06/2005 | CA2267897C Infrared spectroscopy and imaging of libraries |
| 11/30/2005 | EP1600941A1 Dip filter frequency characteristic decision method |
| 11/30/2005 | CN2743808Y Steel string type sensor intelligent frequency measurer |
| 11/17/2005 | US20050256656 Frequency rectification system: apparatus and method |
| 11/16/2005 | EP1596207A2 Frequency rectification system: apparatus and method |
| 11/16/2005 | EP1595117A2 Acoustic array analytical system |
| 11/10/2005 | WO2005106452A2 Multiple modes acoustic wave sensor |
| 11/03/2005 | WO2005104258A1 Elastic body inspection method, inspection device, and dimension prediction program |