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Class Information
Number: 73/659
Name: Measuring and testing > Vibration > Sensing apparatus > With electrically controlled indicator > Spectrum analysis
Description: subject matter relating to the analysis of vibrations by measuring the amplitudes of the frequency components of the vibrations.

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8712704 Defect detection system and method Apr. 29, 2014
8677823 Acoustic thickness measurements using gas as a coupling medium Mar. 25, 2014
8671758 System and method for measuring the frequency of a vibrating object Mar. 18, 2014
8544331 Parameter independent detection of rotating machinery faults Oct. 1, 2013
8534128 Method and system for abnormality diagnosis of very low speed rotating machine Sep. 17, 2013
8515685 Method of mass spectrometry, a mass spectrometer, and probabilistic method of clustering data Aug. 20, 2013
8322223 Axial vibration monitoring for detecting shaft misalignments in turbomachinary trains Dec. 4, 2012
8297123 Detection of anomalous movement in a reciprocating device Oct. 30, 2012
8234925 Device and method for monitoring the vibratory condition of a rotating machine Aug. 7, 2012
8146433 Failure detect device and failure detect method Apr. 3, 2012
8146434 Apparatus for measuring vibration characteristics of head gimbal assembly Apr. 3, 2012
8136405 Method and device for monitoring the dynamic behavior of a rotating shaft, in particular of a gas or steam turbine Mar. 20, 2012
8061205 Acoustic method and apparatus for detection and characterization of a medium Nov. 22, 2011
8028583 Method and device for identifying squeaking noises Oct. 4, 2011
8014903 Method for suppressing vibration and device therefor Sep. 6, 2011
8005574 Vibration suppressing method and device Aug. 23, 2011
7997140 Method and apparatus for troubleshooting noise/vibration issues of rotating components Aug. 16, 2011
7975548 Acoustic thickness measurements using gas as a coupling medium Jul. 12, 2011
7933691 System for and method of monitoring free play of aircraft control surfaces Apr. 26, 2011
RE42197 Method for compensation for mechanical oscillations in machines Mar. 8, 2011
7866213 Method of analyzing non-synchronous vibrations using a dispersed array multi-probe machine Jan. 11, 2011
7860663 Abnormality diagnosing apparatus and abnormality diagnosing method Dec. 28, 2010
7845231 Shear measuring method and its device Dec. 7, 2010
7779690 Vibrating wire sensor using spectral analysis Aug. 24, 2010
7770458 Method of detecting damage to an engine bearing Aug. 10, 2010
7690258 Buried pipe examining method Apr. 6, 2010
7640139 Abnormality diagnosing system for mechanical equipment Dec. 29, 2009
7559240 Method and device for assessing residual service life of rolling bearing Jul. 14, 2009
7555951 Determination of remaining useful life of gas turbine blade Jul. 7, 2009
7549340 Apparatus for measuring vibration characteristic of head gimbal assembly Jun. 23, 2009
7509861 Method and device for local spectral analysis of an ultrasonic signal Mar. 31, 2009
7487679 Vehicle vibration analyzer Feb. 10, 2009
7437935 Continuous chatter boundary criteria for manufactured parts Oct. 21, 2008
7430483 Method and apparatus for diagnosing a mechanism Sep. 30, 2008
7317994 Method and apparatus for signal signature analysis for event detection in rotating machinery Jan. 8, 2008
7296472 Method and apparatus for acoustic sensing of structures Nov. 20, 2007
7204146 Device and method for measuring thickness Apr. 17, 2007
7174786 Quality testing process Feb. 13, 2007
7131332 Vibroguard for machine elements Nov. 7, 2006
7124637 Determining amplitude limits for vibration spectra Oct. 24, 2006
7102795 Method for engraving printing cylinders Sep. 5, 2006
7102794 Method for engraving printing cylinders Sep. 5, 2006
7093492 Configurable vibration sensor Aug. 22, 2006
7059191 Determining defective devices which generate sound during operation Jun. 13, 2006
7036378 High and low frequency band dual output transducer May. 2, 2006
7026943 Acoustic wave ice and water detector Apr. 11, 2006
7027940 Stepped sine wave frequency response measurement system Apr. 11, 2006
6954146 Method for determining a state of a road during the driving mode of a motor vehicle Oct. 11, 2005
6951132 Rail and train monitoring system and method Oct. 4, 2005
6925879 Vibration analyzer and method Aug. 9, 2005

1 2 3 4

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