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