Patents for G01H 15 - Measuring mechanical or acoustic impedance (236)
10/2014
10/01/2014EP2783522A1 A method of processing a signal in a hearing instrument, and hearing instrument
08/2014
08/07/2014DE102013101213A1 Verfahren zur Messung einer akustischen Übertragungsimpedanz in einem Raum und Messanordnung sowie Messkopf hierfür Method for measuring acoustic transfer impedance in a room and measuring arrangement and measuring head for this
08/06/2014CN203758612U 一种测量结构阻尼的牵引释放试验装置 A measure of structural damping traction release test device
07/2014
07/23/2014CN103940503A 一种精确诊断曲轴阻尼变化的方法 An accurate method of diagnosis crankshaft damping changes
07/09/2014CN103913221A 覆冰输电线脱冰跳跃阻尼系数测量方法 Icing transmission line damping measurements jump off the ice
04/2014
04/16/2014CN101970339B Device for measuring pressure, variation in acoustic pressure, a magnetic field, acceleration, vibration, or the composition of a gas
03/2014
03/26/2014CN103675097A Measuring system for material normal direction incidence acoustical absorption coefficient and acoustic impedance
03/19/2014CN103644965A Acoustic liner acoustic impedance measurement method under condition of acoustic wave grazing incidence
01/2014
01/22/2014CN103528901A Device and method for testing non-linear rigidity and damping of hard coating composite structure
11/2013
11/14/2013US20130298679 Acoustic Coin Sensor
10/2013
10/30/2013EP2656506A1 Sensor and a sensor system
10/09/2013CN103344322A Phase calibration and correction method for mechanical impedance measurement
10/01/2013US8544327 Acoustic impedance sensor designed to measure the input acoustic impedance of a waveguide
09/2013
09/19/2013US20130239687 Acoustical wave measuring apparatus
08/2013
08/29/2013DE102013000380A1 Verfahren und Sensorsystem zur akustischen Vermessung der Eigenschaften einer Übertragungsstrecke eines Messsystems zwischen Lautsprecher und Mikrofon Method and sensor system for measuring the acoustic properties of a transmission path of a measuring system between the speaker and microphone
07/2013
07/24/2013CN103217212A Soft measurement method and system of tool nose point displacement mobility of machining center
07/03/2013CN203037437U A joint surface normal-direction dynamic characteristic parameter testing device
06/2013
06/20/2013WO2013089701A1 Multiple barrier test fixture and method of testing using the same
06/18/2013US8465427 Combined diagnostic confocal scanning and low intensity ultrasound treatment
06/12/2013CN103149002A Testing device and method of normal dynamic characteristic parameter of combination face
05/2013
05/30/2013WO2013075255A1 A method of processing a signal in a hearing instrument, and hearing instrument
04/2013
04/03/2013CN103017892A Earth surface specific acoustic impedance non-contact measurement device and method
02/2013
02/20/2013DE202012011083U1 Vorrichtung zur schalltechnischen Prüfung von Bauteilen Apparatus for acoustic testing of components
02/19/2013CA2529747C Sound focusing mechanism and method of estimating acoustic leakage of an object and method of estimating transmission loss of an object
11/2012
11/21/2012CN202547769U Apparatus for testing bellows vibration isolation performance under free condition
09/2012
09/19/2012CN102680075A Device and method for testing vibration isolation performance of corrugated pipe under free work condition
08/2012
08/15/2012CN102636253A Method for representing mechanical admittance characteristics of structure under complicated excitation
07/2012
07/25/2012CN202350913U Probe capable of simultaneously measuring multiple parameters of colloid
06/2012
06/28/2012WO2012085333A1 Sensor and a sensor system
05/2012
05/02/2012CN102435298A Ground surface sound impedence rate measuring device and method
04/2012
04/11/2012CN102410873A 一种同时测量胶体多项参数的探针 A simultaneous measurement of various parameters of the colloidal probe
03/2012
03/08/2012WO2012031290A2 Method and apparatus for the control of a flotation separation process, including parameters of the flotation process and reagent addition to optimize mineral recovery
03/08/2012WO2011142633A3 Single chip for making products of sound visualization
03/08/2012CA2810025A1 Method and apparatus for the control of a flotation separation process, including parameters of the flotation process and reagent addition to optimize mineral recovery
01/2012
01/18/2012EP1040251B1 Method to determine self-calibrated circumferential cased bond impedance
11/2011
11/17/2011WO2011142633A2 Single chip for making products of sound visualization
08/2011
08/11/2011US20110192231 Acoustic impedance sensor designed to measure the input acoustic impedance of a waveguide
04/2011
04/20/2011EP2310815A2 Acoustic impedance sensor designed to measure the input acoustic impedance of a waveguide
03/2011
03/22/2011US7908924 Sound focusing mechanism and method of estimating acoustic leakage of an object and method of estimating transmission loss of an object
02/2011
02/09/2011CN101970339A Device for measuring pressure, variation in acoustic pressure, a magnetic field, acceleration, vibration, or the composition of a gas
02/09/2011CN101210843B Thermo-acoustic heat engine acoustic field monitoring method and monitoring system
12/2010
12/15/2010CN101915608A Device and method for extracting acoustic signals by pressure sensor
12/08/2010CN101208044B A method of measuring an acoustic impedance of a respiratory system
11/2010
11/25/2010WO2010003840A3 Acoustic impedance sensor designed to measure the input acoustic impedance of a waveguide
11/10/2010CN201628578U Metal rubber vibration isolation performance testing device
10/2010
10/12/2010CA2359400C Method for detecting transverse vibrations in an ultrasonic hand piece
09/2010
09/28/2010CA2359142C Method for differentiating between burdened and cracked ultrasonically tuned blades
09/10/2010WO2010100304A1 Method and device for measuring sound insulation between enclosed spaces
08/2010
08/11/2010EP2215005A1 Device for measuring pressure, variation in acoustic pressure, a magnetic field, acceleration, vibration, or the composition of a gas
06/2010
06/01/2010US7727152 Method and apparatus for scanning confocal acoustic diagnostic for bone quality
01/2010
01/14/2010WO2010003840A2 Acoustic impedance sensor designed to measure the input acoustic impedance of a waveguide
01/14/2010CA2729312A1 Acoustic impedance sensor designed to measure the input acoustic impedance of a waveguide
11/2009
11/26/2009WO2009102141A3 Apparatus and method for detecting impact sound and rhythm of impact sound
10/2009
10/21/2009CN201331377Y Mechanical impedance testboard for vibration isolator
08/2009
08/20/2009WO2009102141A2 Apparatus and method for detecting impact sound and rhythm of impact sound
06/2009
06/11/2009WO2009071746A1 Device for measuring pressure, variation in acoustic pressure, a magnetic field, acceleration, vibration, or the composition of a gas
03/2009
03/10/2009CA2312480C Method to determine self-calibrated circumferential cased bond impedance
01/2009
01/22/2009DE102006010500B4 Konfigurationseinrichtung zum Erzeugen von Informationen zur Modernisierung einer Anlage Configuration means for generating information on the modernization of a plant
09/2008
09/04/2008WO2008105947A2 Ultrasonic through-wall communication (utwc) system
07/2008
07/08/2008US7398166 Method and apparatus for the measurement of the acoustic impedance
07/02/2008CN101210843A Thermo-acoustic heat engine acoustic field monitoring method monitoring system
06/2008
06/25/2008CN101208044A A method of measuring an acoustic impedance of a respiratory system and diagnosing a respiratory disease or disorder or monitoring treatment of same
04/2008
04/22/2008CA2239583C System and method for measuring acoustic reflectance
03/2008
03/27/2008WO2008036818A1 Sound meter for portable audio headphones
03/12/2008EP1895908A1 A method of measuring an acoustic impedance of a respiratory system and diagnosing a respiratory disease or disorder or monitoring treatment of same
09/2007
09/13/2007DE102006010500A1 Configuration device for e.g. drives of vehicle, has memory with program provided to assign modernization components of system under parameter of system components, where modernization components fulfill performance of system components
01/2007
01/25/2007WO2004113852A3 Sound focusing mechanism and method of estimating acoustic leakage
12/2006
12/14/2006WO2006130922A1 A method of measuring an acoustic impedance of a respiratory system and diagnosing a respiratory disease or disorder or monitoring treatment of same
12/14/2006CA2610845A1 A method of measuring an acoustic impedance of a respiratory system and diagnosing a respiratory disease or disorder or monitoring treatment of same
11/2006
11/28/2006US7140254 Apparatus for generating and measuring bending vibration in a non-ferromagnetic pipe without physical contact
06/2006
06/27/2006CA2397171C Self-calibrated ultrasonic method of in-situ measurement of borehole fluid acoustic properties
04/2006
04/06/2006US20060070445 Mobile test stand for determining the sound insulation or insertion loss of a test object
04/05/2006EP1040251A4 Method to determine self-calibrated circumferential cased bond impedance
10/2005
10/25/2005US6957700 Self-calibrated ultrasonic method of in-situ measurement of borehole fluid acoustic properties
10/13/2005US20050223801 Apparatus for generating and measuring bending vibration in a non-ferromagnetic pipe without physical contact
07/2005
07/05/2005US6912903 Soil compaction measurement
06/2005
06/15/2005EP0877921B1 Measurement of shear modulus of soil
12/2004
12/29/2004WO2004113852A2 Sound focusing mechanism and method of estimating acoustic leakage
12/29/2004CA2803911A1 Methods of estimating sound transmission and acoustic leakage of an object
12/29/2004CA2529747A1 Sound focusing mechanism and method of estimating acoustic leakage of an object and method of estimating transmission loss of an object
12/23/2004US20040258248 Sound focusing mechanism and method of estimating acoustic leakage of an object and method of estimating transmission loss of an object
12/08/2004CN2662214Y Wideband acoustic impedance measuring device
09/2004
09/09/2004US20040176702 Method and apparatus for the measurement of the acoustic impedance
07/2004
07/01/2004US20040128072 Self-calibrated ultrasonic method of in-situ measurement of borehole fluid acoustic
07/01/2004US20040123665 Nondestructive detection of reinforcing member degradation
05/2004
05/06/2004EP1415592A1 System and method for measuring acoustic reflectance
03/2004
03/30/2004US6712138 Self-calibrated ultrasonic method of in-situ measurement of borehole fluid acoustic properties
02/2004
02/26/2004US20040035207 Soil compaction measurement
08/2003
08/12/2003US6604432 Soil compaction measurement
06/2003
06/04/2003EP1316783A2 Method and device for measuring the acoustical impedance
04/2003
04/09/2003EP1301060A1 Method and apparatus for determination of acoustic parameters for fitting hearing aids
03/2003
03/04/2003US6526840 Method for measuring sound absorption power of a theater chair with a human being seated thereon and a dummy sound absorber
02/2003
02/13/2003US20030029241 Self-calibrated ultrasonic method of in-situ measurement of borehole fluid acoustic properties
01/2003
01/14/2003US6506608 Method and system which determines the oxygen and/or carbon dioxide content of the expired gas using measurements of mass and volume of expired gas and inspired gas as measured by transit time of ultrasonic pulses
01/07/2003US6502471 Electrical circuit for testing a transducer horn assembly
12/2002
12/24/2002CA2245007C Soil compaction measurement
12/04/2002EP0871850B1 A device and process for generating and measuring the shape of an acoustic reflectance curve of an ear
10/2002
10/15/2002US6463817 Dummy sound absorber representing a seated human for measuring sound absorption power of a theater chair
09/2002
09/18/2002EP0836670B1 Method and system for logging mechanical parameters of formations crossed through by a borehole
08/2002
08/28/2002CN1089893C Device and process for generating and measuring shape of acoustic reflectance curve of ear
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