Patents
Patents for G01H 3 - Measuring vibrations by using a detector in a fluid (2,243)
10/1984
10/09/1984US4476550 Determination of far field signatures, for instance of seismic sources
10/09/1984US4476549 Calibration method for acoustic scattering measurements using a spherical target
10/09/1984US4475397 Method and means for attaining ultrasonic attenuation by vector sample averaging
10/09/1984US4475396 Method of determining ultrasonic attenuation of tissue using reflective tomographic reconstruction
10/09/1984US4475395 Method for recognizing different frequency dependent scatter mechanisms in non-homogeneous tissues
10/09/1984US4475376 Apparatus for testing ultrasonic transducers
08/1984
08/08/1984EP0028103B1 A spectrum analyzer
08/07/1984US4463608 Ultrasound imaging system
07/1984
07/31/1984US4463453 Acoustic intensity measurement apparatus and method including probe having ambient noise shield
07/17/1984US4459852 Acoustic microscope using line-focus acoustic beam
07/11/1984EP0113275A2 Spectrum display device for audio signals
06/1984
06/12/1984US4453408 Device for testing ultrasonic beam profiles
06/05/1984US4453238 Apparatus and method for determining the phase sensitivity of hydrophones
06/05/1984US4452085 Method and means for generating time gain compensation control signal for use in ultrasonic scanner and the like
06/05/1984US4452083 Ultrasonic diagnosis device
05/1984
05/22/1984CA1167958A1 Acoustic microscope with a variable rf pulse for causing interference
05/08/1984US4446738 Acoustic scanning microscope
05/01/1984US4445361 System for detection of transducer defects
04/1984
04/17/1984US4442714 Microscope and method of use
04/17/1984CA1165855A1 Ultrasonic measuring device
04/10/1984US4441368 Method and means for determining ultrasonic wave attenuation in tissue
04/03/1984US4441173 Very low frequency hydrophone calibration
03/1984
03/06/1984US4434799 Ultrasound apparatus for medical examinations
03/06/1984US4434648 Electroacoustic transducer calibration method and apparatus
02/1984
02/14/1984US4430897 Acoustic microscope and method
02/14/1984US4430883 Device for the calibration of an ultrasonic transducer
02/08/1984EP0100094A2 Ultrasonic blood flow imaging method and apparatus
01/1984
01/31/1984CA1161542A1 Method and device for processing wide-band signals having a large dynamic range
01/17/1984CA1160728A1 Ultrasonic diagnostic apparatus
01/10/1984US4425500 Firing range
01/10/1984US4424715 Ultrasonic measuring device
01/04/1984EP0097385A1 Measuring apparatus
01/03/1984US4424511 Noise monitor
01/03/1984US4423634 Device for the activation of an apparatus for measuring acoustic emission by detection of background noise
11/1983
11/29/1983US4417582 Resolution measuring device for acoustical imaging systems and method of use
11/29/1983CA1157934A1 Determination of far fields signatures, for instance of seismic sources
11/22/1983US4416155 Electronic noise detectors
11/15/1983US4415996 Nonwavelength-limited holographic sound field reconstruction
11/09/1983EP0093505A1 Method of measuring fluid oscillation amplitude
11/08/1983US4413522 Ride quality meter
10/1983
10/26/1983EP0092191A2 Method and means for determining ultrasonic wave attenuation in tissue
10/11/1983US4408494 Ultrasound measuring instrument
09/1983
09/28/1983EP0089841A1 Method and apparatus for measuring the intensity of an acoustic field
09/27/1983US4406153 Ultrasonic beam characterization device
09/20/1983CA1154139A1 Electro-acoustic device for the underwater signalling and identification of vessel
09/14/1983EP0088521A2 Improvements in sound display systems
09/06/1983CA1153459A1 Sensor for detecting particles in a fluid flow
08/1983
08/24/1983EP0086531A1 Apparatus for ultrasonic investigation
08/09/1983US4397187 Chamber for tesing acoustical transmission loss characteristics of sheet materials
07/1983
07/27/1983EP0084174A2 Ultrasonic microscope
07/26/1983US4394824 Acoustic microscope
07/05/1983US4391124 Electroacoustic transducer calibration method and apparatus
06/1983
06/28/1983US4390026 Ultrasonic therapy applicator that measures dosage
06/07/1983US4386530 Ultrasonic imaging equipment
05/1983
05/17/1983US4384335 Method of and system for determining the pitch in human speech
05/03/1983US4381675 Ultrasound visualization systems
04/1983
04/19/1983US4380732 Signal spectrum display apparatus
04/19/1983CA1144806A1 Ultrasonographic elements containing diffusable ion layer, barrier layer and layer for immobilizing diffusible ion
03/1983
03/16/1983EP0074204A1 Determination of system response
03/01/1983US4375679 Hydrophone acoustic response chamber
02/1983
02/22/1983US4374477 Ultrasonic measuring device
02/01/1983US4370884 Operational testing device for inlet valves and outlet valves of reciprocating engines
01/1983
01/11/1983US4367648 Dark field viewing apparatus
12/1982
12/08/1982EP0066515A1 Apparatus to generate noise and device to control the acoustic insulation in buildings
12/07/1982US4362058 Ultrasonic diagnostic apparatus
11/1982
11/30/1982CA1136468A1 Ultrasonic imaging by contacting a catalytic element containing barrier means with a catalyst poison
11/09/1982US4358733 Spectrum analyzer without distinct band-pass filter components
10/1982
10/20/1982EP0062629A1 A method and apparatus for registering a time-dependent quantity to be asured
10/05/1982US4352293 Method of diagnosing vibration of rotary machine
09/1982
09/21/1982US4350045 Apparatus and method for characterizing an acoustic field
09/21/1982CA1131973A1 Ultrasound imaging of internally fogged silver halide elements
09/21/1982CA1131972A1 Ultrasonographic exposure apparatus
09/14/1982US4349796 Devices incorporating phonon filters
08/1982
08/17/1982US4345247 Display system for steady state waves
08/03/1982CA1129063A1 Passive remote temperature sensor system
07/1982
07/28/1982EP0056553A1 Procedure for the detection of acoustic sources and apparatus for surveillance by acoustic emissions
06/1982
06/29/1982CA1126850A1 Method of and device for determining the internal structure of a body by means of acoustic beams
06/15/1982US4335452 Electro-acoustic device for the underwater signalling and identification of a vessel
06/08/1982US4333474 Ultrasonic imaging system
05/1982
05/25/1982US4331021 Contrast resolution tissue equivalent ultrasound test object
04/1982
04/13/1982US4324849 Imagewise accelerating equilibration in ultrasonographic recording
04/06/1982US4323077 Acoustic intensity monitor
04/06/1982US4322976 Mechanical vibration analyzer
04/06/1982CA1121499A1 Method and apparatus for reflective ultrasonic imaging utilizing reconstruction of acoustic impedance projections
04/06/1982CA1121498A1 Acoustic imaging system
03/1982
03/10/1982EP0047100A2 Improvements in or relating to determination of far field signatures, for instance of seismic sources
03/09/1982US4319081 Sound level monitoring apparatus
02/1982
02/16/1982US4315428 Sensor for detecting particles in a fluid flow
01/1982
01/26/1982US4312232 Vibration analyzer with digital readout
01/19/1982CA1116740A1 Acoustic insulation measurement apparatus
01/13/1982EP0043746A1 Actuation device for an acoustic emission measuring system using the detection of the background noise
01/07/1982WO1982000055A1 A method and apparatus for registering a time-dependent quantity to be measured
01/06/1982EP0043293A1 Digital phase detector
01/06/1982EP0042945A1 Apparatus for and method of storing characteristics of an acoustic field
12/1981
12/22/1981US4307385 Noise monitoring apparatus
12/22/1981US4307340 Spectrum display apparatus
11/1981
11/11/1981EP0039457A1 Acoustic microscope
11/10/1981CA1112352A1 Test head for ultrasonic testing of structural material
09/1981
09/29/1981US4292471 Method of verifying a speaker
09/15/1981US4290123 Towed array condition appraisal system
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