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| Number | Title | Issue Date |
| 8042398 | Ultrasonic receiver An ultrasonic receiver according to the present invention includes: a wave propagating portion 6, which defines a first opening 63 and a waveguide 60 that makes an ultrasonic wave, coming through the first opening 63, propagate in a prede... | 10/25/2011 |
| 7681451 | Passage detection apparatus of object Disclosed herein is a passage detection apparatus capable of detecting a passage of an object in a specific space. The passage detection apparatus includes a transmitting device, a receiving device, and a shielding member. The transmitting device is provided with a ... | 03/23/2010 |
| 7565842 | Ultrasonic receiver An ultrasonic receiver according to the present invention includes a first horn having a first large opening and a first small opening which are an incidence end and an outgoing end of an ultrasonic wave; a second horn having a second small opening and a second larg... | 07/28/2009 |
| 7308828 | Ultrasonic probe An ultrasonic probe has a probe proper, a connector and a cable for electrically connecting between the probe proper and the connector. The probe proper includes a transducer that converts between ultrasonic wave and electricity, and a phase change member having a p... | 12/18/2007 |
| 7275438 | Method and device for recognition of a tear-off strip on a material web In order to check a material web (12), in particular a film web, with regard to the correct arrangement of a tear-off strip (11) extending in the longitudinal direction of the material web (12), ultrasonic transmitters are used, specifically an ... | 10/02/2007 |
| 6431001 | Obstacle detecting system having snow detecting function An obstacle detecting system for vehicles has an ultrasonic vibrator having a vibration plate and mounted on a vehicle to transmit and receive an ultrasonic wave. An obstacle is detected in response to an output signal of the ultrasonic vibrator. When the... | 08/13/2002 |
| 5992235 | Ultrasonic test head and method for its operation An ultrasonic test head for ultrasonically testing flaws in a workpiece includes a common housing. An ultrasonic transducer configuration is disposed in the common housing. At least one ultrasonic transducer array is disposed in the common housing for ope... | 11/30/1999 |
| 5804729 | Apparatus and associated method for measuring differences in delay measurements A sensing apparatus includes a pulse recirculating circuit operatively connected to at least one ultrasonic delay sensor or other device for recirculating pulses therethrough, and a measurement difference output circuit for generating an output signal bas... | 09/08/1998 |
| 5763785 | Integrated beam forming and focusing processing circuit for use in an ultrasound imaging system A beam forming and focusing processing circuit for use in an ultrasound imaging system. The system incorporates a plurality of the processing circuits which differentially delay imaging signals in order to generate an output in which the imaging signals f... | 06/09/1998 |
| 5698786 | Differential phase velocity determining delay measurement apparatus and associated method An apparatus includes an ultrasonic delay sensor or device having a delay related to the sensed quantity; a pulse recirculating circuit for recirculating pulses through the ultrasonic delay sensor for generating a pulse repetition signal having a frequenc... | 12/16/1997 |
| 5589636 | Method of and apparatus for the detection of an ultrasonic field The number of transducers in the scanning of an ultrasonic field from an object is reduced by providing ultrasonic collectors at spaced apart locations in the medium and transmitting the ultrasonic waves which are collected to a transducer through wavegui... | 12/31/1996 |
| 5585563 | Non-contact thickness measurement using UTG A measurement structure for determining the thickness of a specimen without mechanical contact but instead employing ultrasonic waves including an ultrasonic transducer and an ultrasonic delay line connected to the transducer by a retainer or collar. The ... | 12/17/1996 |
| 5507183 | Ultrasonic method and apparatus for detecting and identifying contamination such as ice on the surface of a structure A method and an apparatus for detecting and identifying a contaminant, such as ice, on the surface of a structure, such as a wing, are disclosed. The apparatus has a probe having a delay block with an interface apt to be placed flush with the surface of t... | 04/16/1996 |
| 5479825 | Transducers for transmitting and/or receiving ultrasonic energy Improved ultrasonic energy transducers each include a material contacting member secured to a piezoelectric element at an interface region between oppositely operated first and second regions of the piezoelectric element. The material contacting member in... | 01/02/1996 |
| 4833660 | Device for detecting the presence of frost and/or for measuring the thickness of frost by ultrasound and frost probe usable in such a device In a detection device of the presence of frost and/or measuring the thickness of the frost by ultrasound, a probe with a piezoelectric ultrasonic transducer generates an ultra-sonic acoustic emission wave and detects ultrasonic acoustic echo waves reflect... | 05/23/1989 |
| 4567770 | Ultrasonic transducer apparatus and method for high temperature measurements A non-destructive method and apparatus for inspecting materials in excess of 500° C. includes a dual transducer disposed upon a delay line suitable for operation at the elevated temperatures. The delay line is divided into two parts acoustically isolated... | 02/04/1986 |
| 4552021 | Electro-sound transducer eliminating acoustic multi-reflection, and ultrasonic diagnostic apparatus applying it An ultrasonic diagnostic apparatus protected from multi-reflection of sound echoes. Multi-reflection is avoided by eliminating the reflection from the surface of an electro-sound transducer. This invention eliminates the surface reflection of the transduc... | 11/12/1985 |
| 4481821 | Electro-elastic self-scanning crack detector A contactless self-scanning electro-elastic nondestructive testing technique is described for determining in real time the presence, location, number and size of defects present on the surface of a material under test. In one embodiment the apparatus incl... | 11/13/1984 |
| 4170142 | Linear transducer array and method for both pulse-echo and holographic acoustic imaging A linear transducer array for transmitting and receiving acoustic waves in both pulse-echo and holographic modes of operation. For pulse-echo acoustic imaging the array includes a linear subarray of transmitting transducer elements disposed in a plane alo... | 10/09/1979 |
| 4080839 | Testing method using ultrasonic energy A convergent ultrasonic beam is formed by an emitter made as a sphere and directed to a piece under test. Having been reflected from the surface of the piece and from the defect, the ultrasonic beams are separated in space. The ultrasonic beam carrying in... | 03/28/1978 |
| 4058003 | Ultrasonic electronic lens with reduced delay range Ultrasonic reflections are received by a transducer array whose resultant signals are passed through an array of time-varying delay lines to provide focusing at all depths. The delay lines are made up of a combination of two components, one increasing and... | 11/15/1977 |
| 3986160 | Visualization by ultrasonic detection A system for sensing by ultrasonic vibrational energy the shape and character of objects immersed in a visually opaque transmission medium is disclosed. Frequency modulated ultrasonic waves are projected to irradiate an object, with reflected energy from ... | 10/12/1976 |
| 3974682 | Ultra sound examining device An ultra sound examining device operating according to the impulse echo process and used for medical purposes comprises an ultra sound sending-receiving system the sender of which transmits ultra sound impulses in predetermined time intervals into the obj... | 08/17/1976 |
