Patents
Patents for G01H 3 - Measuring vibrations by using a detector in a fluid (2,243)
03/1987
03/04/1987EP0212060A2 Calibration method for electro-acoustic measuring apparatuses
03/03/1987US4646573 Scanning acoustic microscope
02/1987
02/25/1987EP0211680A1 Method of calibrating a kidney lithotripter
02/25/1987EP0211488A2 Tuning apparatus
02/24/1987US4644794 Acoustic guide for noise-transmission testing of aircraft
02/12/1987DE3528705A1 Device for measuring the ultrasonic field produced by an ultrasonic transmitter
02/10/1987US4641668 Ultrasonic blood flow imaging method and apparatus
02/10/1987US4641530 Acoustic microscope for analyzing an object in depth having aspherical lenses
02/03/1987US4640134 Apparatus and method for analyzing acoustical signals
01/1987
01/13/1987CA1216654A1 Audio dosimeter
01/06/1987US4634966 Binary processing of sound spectrum
01/06/1987US4633883 Ultrasonic diagnostic equipment
12/1986
12/09/1986US4628255 AGC technique for spectrum analyzers
12/02/1986US4627092 Sound display systems
12/02/1986US4625828 Acoustic reflector for ground plane microphone
12/02/1986US4625542 Radiation power measuring apparatus
11/1986
11/11/1986US4621645 Method of estimating tissue attenuation using wideband ultrasonic pulse and apparatus for use therein
11/04/1986US4620445 Portable acoustic intensity measuring device
10/1986
10/29/1986EP0198944A1 Scanning acoustic microscope
10/01/1986EP0195800A1 Radiation power measuring apparatus
09/1986
09/30/1986US4614410 Ultrasonic microscope with optical microscope incorporated therein
09/16/1986US4612665 Graphic equalizer with spectrum analyzer and system thereof
09/09/1986US4611343 Audio spectrum analyzer operable in a difference mode
09/09/1986US4610255 Ultrasonic non-linear parameter measuring system
08/1986
08/26/1986US4607528 Method of determining a clean propeller pressure signal from a propeller/engine exhaust combined signal measured in flight with a microphone arranged on a propeller-driven aircraft
08/13/1986EP0190601A1 Safety device for a shock wave discharge tube
08/12/1986US4604896 For the Jj-69 engine
08/05/1986US4604719 Oscillator having a sixteen bit signal generation utilizing an eight bit processor
08/05/1986CA1209240A1 Ultrasound measuring instrument
07/1986
07/22/1986US4601200 Measuring apparatus
07/08/1986US4599567 Signal representation generator
06/1986
06/24/1986CA1206587A1 Ultrasonic examination device
06/24/1986CA1206585A1 Acoustic microscope
05/1986
05/14/1986EP0181126A1 Signal synthesiser
05/13/1986CA1204496A1 Acoustic power meter
04/1986
04/22/1986US4583405 Testing device
04/15/1986US4581936 Ultrasonic camera
04/08/1986US4581727 Finding the direction of a sound
04/02/1986EP0176415A1 Acoustic microscope with aspherical lenses for the subsurface analysis of an object
03/1986
03/27/1986WO1986001889A1 Radiation power measuring apparatus
03/25/1986US4577504 Acoustic microscope
03/25/1986US4577503 Method and device for detecting a specific acoustic spectral feature
03/12/1986EP0173955A2 A method and device for detecting a specific acoustic spectral feature
03/11/1986US4575829 Method and apparatus for sound level determination
02/1986
02/10/1986CN85100620A Meter and measurement of harmonic distortion under great power of iouderspeaker
02/04/1986US4567767 Method and apparatus for very low temperature acoustic microscopy
01/1986
01/28/1986US4566460 Measuring method and apparatus for non-linear parameter of acoustic medium and its application
01/21/1986CA1199589A1 Sound display systems
01/14/1986US4563900 Acoustic microscope
01/14/1986US4563898 Acoustic microscope
01/07/1986US4563756 Pseudo-random noise generator calibration for acoustic hydrophones
12/1985
12/31/1985CA1198805A1 Determination of system response
11/1985
11/27/1985EP0162638A1 Method of and apparatus for acoustic imaging
11/19/1985US4554639 For measuring exposure to sound
11/19/1985CA1197002A1 Finding the direction of a sound
11/13/1985EP0161040A1 Surface acoustic wave spectrum analyzer
11/12/1985US4552022 Sound discriminator tester
11/05/1985US4550604 Abnormal noise detector for inspecting gear units
11/05/1985US4550603 Abnormal noise detector for use in the inspection of gear units
10/1985
10/10/1985WO1985004490A1 Finding the direction of a sound
10/09/1985EP0157154A1 Acoustic lens arrangement
10/09/1985EP0157127A1 Circuit for separating high-frequency pulses at a reflecting acoustic lens system
10/08/1985CA1194977A1 Process for detecting an acoustic source and an acoustic emission monitoring apparatus
10/01/1985US4543830 Gas turbine rub detector
09/1985
09/17/1985US4541281 Ultrasonic microscope system
09/03/1985US4538464 Method of measuring reactive acoustic power density in a fluid
08/1985
08/21/1985EP0152113A1 Ultrasonic diagnostic equipment
08/07/1985EP0150843A2 Apparatus using focalized acoustic waves for studying the structure of an object
08/06/1985US4532807 Method and apparatus for detecting sound source
07/1985
07/16/1985US4529973 School cafeteria sound level monitor
07/10/1985EP0147955A2 Ultrasonic non-linear parameter measuring system
07/09/1985US4528689 Sound monitoring apparatus
07/02/1985CA1189945A1 Device for the activation of an apparatus for measuring acoustic emission by detection of background noise
06/1985
06/18/1985US4523466 Acoustic monitoring of tube vibration
05/1985
05/28/1985US4520503 Tone discrimination circuit
05/08/1985EP0029451B1 Passive remote temperature sensor system
05/07/1985US4515163 Method and a means for determining ultrasonic wave attenuation in tissue using zero crossing detector functioning within a specified frequency band
04/1985
04/30/1985US4514621 Firing range
04/16/1985US4511998 Multielement acoustic transducer as well as a method of manufacturing the same and an acoustic imaging instrument
04/16/1985US4510810 Ultrasonic microscope
04/10/1985EP0136857A2 Apparatus for observing sound field of ultrasonic wave
04/02/1985US4509189 Sound level indicating devices
04/02/1985US4509061 Method and apparatus for forming photographic record of sound field
02/1985
02/26/1985US4501151 Ultrasonic therapy applicator that measures dosage
02/19/1985CA1182898A1 Chamber for testing acoustical transmission loss characteristics of sheet materials
02/13/1985EP0132807A2 Signal representation generator
02/12/1985US4499393 Surface acoustic wave spectrum analyzer
01/1985
01/08/1985US4492917 Display device for displaying audio signal levels and characters
01/08/1985US4492117 Ultrasonic nondestructive test apparatus
01/08/1985US4492107 Acoustic power meter
01/01/1985US4491020 Ultrasonic microscope
12/1984
12/19/1984EP0128635A2 Measuring non-linear parameter of acoustic medium
12/04/1984US4486862 Determination of system response
11/1984
11/27/1984US4484476 Acoustic microscope device
11/13/1984US4481811 Measurement of fluid oscillation amplitude
11/06/1984US4481504 Sound level alarm which ignores transient sounds
10/1984
10/23/1984US4478072 Apparatus for determining the concentration of solids dispersed in a liquid
10/17/1984EP0122074A2 Audio dosimeter
10/17/1984EP0121890A2 Ultrasonic microscope system
10/17/1984EP0121690A2 Acoustic microscope
1 ... 10 11 12 13 14 15 16 17 18 19 20 21 22 23