|
Match
|
Document |
Document Title |
|
|
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...
|
|
|
4016751 |
Ultrasonic beam forming technique
Apparatus for ultrasonic examination of objects, particularly in medical gnostic examination, incorporates means for focusing portions of the beam of ultrasonic pulses generated by a transducer at...
|
|
|
4011748 |
Method and apparatus for acoustic and optical scanning of an object
A microscope for scanning an object with light and acoustic waves and producing both acoustic and optical images thereof. The microscope includes optical and acoustic lenses that focus both the...
|
|
|
4011747 |
Method and apparatus for acoustic scanning using waves scattered by an acoustic grating
An acoustic scanning apparatus is described having an acoustic grating for scattering waves into a focused beam. Surface acoustic waves are generated by a chirp signal generator and are introduced...
|
|
|
4001766 |
Acoustic lens system
An acoustic imaging system utilizing an acoustic lens and a transducer array. A corrector device is placed in front of the transducer array to flatten the image field so as to conform to the...
|
|
|
3995179 |
Damping structure for ultrasonic piezoelectric transducer
An ultrasonic transducer that employs a piezoelectric crystal which is made of lead metaniobate so that it has good sensitivity while also having a low Q. The transducer includes a backing support...
|
|
|
3974684 |
Ultrasonic system for focusing at an oblique angle of incidence
In a focusing ultrasonic system for detecting flaws in a part and obtaining a single focal point in the ambient medium, the ratio of the distances between the points of impact of the different rays...
|
|
|
3974475 |
Method of and apparatus for focusing ultrasonic waves in a focal line
An apparatus for focusing ultrasonic waves in a focal line by an ultrasonic optical system having at least one rotation-symmetrical, non-spherical acoustical reflection surface which together with...
|
|
|
3971962 |
Linear transducer array for ultrasonic image conversion
An ultrasonic transducer comprising a linear array of piezoelectric elements for converting a single line from a compressional acoustic image field to electrical impulses which, in turn, provide a...
|
|
|
3968680 |
Wide-band ultrasonic transducer and its uses
A wide-band ultrasonic transducer comprising: a body of revolution; at least two electrodes connected to the body of revolution; the body of revolution being made of a material having piezoelectric...
|
|
|
3958559 |
Ultrasonic transducer
For use in ultrasound pulse-echo imaging and neurosurgery systems, a plano-concave lens of elliptical shape is positioned in front of a transducer for producing an extremely narrow ultrasonic beam,...
|
|
|
3934460 |
Apparatus for focusing and collimating ultrasonic waves
An apparatus employing ultrasonic waves includes an ultrasonic transducer to which a solid buffer rod is attached. The ultrasonic waves are focused by liquid-filled lenses placed between the...
|
|
|
3927662 |
Ultrasonic transducer assembly
A series of ultrasonic multi-element transducer assemblies is disclosed for patient monitoring use and particularly fetal monitoring prior to and during delivery. Each assembly is comprised of a...
|
|
|
3924454 |
Multi-frequency ultrasonic testing system
An ultrasonic nondestructive testing system is provided for accurately inspecting workpieces having a large amount of acoustical attenuation. The system is adapted to simultaneusly resolve with a...
|
|
|
3924453 |
Ultrasonic testing of tubing employing a spiral wave generator
Ultrasonic testing of tubing for spirally oriented planar discontinuities in the wall of a tube uses a divergent spiral wave generator. A divergent beam of ultrasonic energy is directed into the...
|
|
|
3922907 |
In-bore turbine inspection device
An inspection device for detecting cracks or fissures within a rotor member. The device has a transducer element and a lens for focusing acoustic waves produced by the transducer in a predetermined...
|
|
|
3916675 |
Deflector for converting a beam of parallel rays into a beam of rays having constant incidence on cylindrical part
A deflector for exciting Lamb waves at the surface of a cylindrical part having a polygonal or circular directrix converts a beam of rays parallel to the generating-lines of the part into a beam of...
|
|
|
3913386 |
Method of compensation for the angle of refraction of an ultrasonic beam and a device for the application of said method
The angle of refraction of an ultrasonic beam in a test-piece is compensated as a function of temperature by interposing a wedge consisting of at least two refractive media between the ultrasonic...
|
|
|
3908446 |
Ultrasonic apparatus for wall thickness measurement
Moving glass tube wall thickness is measured by apparatus in which ultrasonic pulses are applied to the tubing and the time taken for a pulse to traverse the wall thickness is measured. The...
|
|
|
3903990 |
Acoustic lens
In order to improve the F-value, a solid acoustic lens is constructed by arranging a plurality of lens blocks adjacent one another in the form of a plane. In the lens block at the center, an...
|
|
|
3898840 |
Multi-frequency ultrasonic search unit
A multi-frequency ultrasonic nondestructive testing system and a multi-frequency search unit for use in such a system are disclosed herein. The search unit includes a plurality of piezoelectric...
|
|
|
3881164 |
Cross array ultrasonic transducer
Apparatus for ultrasonic examination of objects, particularly in medical diagnostic examination, is comprised of a first phased array transducer capable of focusing the beam of pulses of ultrasonic...
|
|
|
3859984 |
ULTRASONIC TRANSDUCER FOR FETAL MONITORING
This disclosure relates to an ultrasonic transducer for monitoring fetal heartbeat using two sets of transmitting and receiving crystals each set having a different focal point to establish a zone...
|
|
|
3832889 |
ULTRA-SONIC WELD INSPECTION DEVICE
This invention relates to an improved transducer for an ultrasonic weld iection system of the type wherein the system utilizes a reflectoscope for electronically generating and detecting ultrasonic...
|
|
|
3815409 |
FOCUSED SONIC IMAGING SYSTEM
A chirped or frequency modulated sonic wave is passed through a dispersive lens whose focal length varies with frequency. Thus the different frequencies in the sonic wave focus at different depths...
|
|
|
3810384 |
ULTRASONIC PIPELINE INSPECTION DEVICE
Ultrasonic instrumentation is incorporated into a self-contained and self-propelled unit capable of traversing through generally inaccessible pipe such as a buried pipeline to provide a record of...
|
|
|
3745813 |
ULTRASONIC INSPECTION ROLL SYSTEM
In a roll system for ultrasonic inspection of steel plates or other materials using a double temperature gradient delay line, a predetermined safety zone is provided against possible wear of the...
|
|
|
3709029 |
ULTRASONIC INSPECTION APAPRATUS
A multiple transducer probe for pulse-echo ultrasonic testing, and especially for image-forming at depth within objects, comprising a transducer system focused along a line and having its component...
|
|
|
3663842 |
ELASTOMERIC GRADED ACOUSTIC IMPEDANCE COUPLING DEVICE
An ultrasonic probe has a solid, flexible, elastic, graded acoustical impedance coupling device having fine geometrical and naturally shaped, metal and glass component powders, with their...
|
|
|
3636756 |
ULTRASONIC SEARCH UNIT WITH ROLLING CONTACT
An ultrasonic wheel search unit for testing elongated bodies wherein a fluid impervious, flexible, ultrasonically transparent diaphragm defines a fluid-filled wheel chamber and a separate...
|
|
|
3618696 |
ACOUSTIC LENS SYSTEM
An acoustic lens system having a plurality of acoustic lens elements with the lens elements having respective thermal dispersion factors. The acoustic lens elements are fabricated in accordance...
|
|
|
3550436 |
METHOD AND APPARATUS FOR ULTRASONIC THICKNESS GAGING OF OBJECTS IN NONNORMAL ALIGNMENT
|
|
|
3550438 |
ULTRASONIC TESTING SYSTEM FOR HOT OBJECTS
|
|
|
3548642 |
SYNTHETIC APERTURE ULTRASONIC IMAGING SYSTEMS
|
|
|
3546927 |
ULTRASONIC TESTING APPARATUS
|
|
|
3472065 |
ADJUSTABLE TRANSDUCER MOUNTING
|
|
|
3451260 |
APPARATUS FOR ULTRASONIC SCANNING USING AN ELLIPTIC REFLECTING SYSTEM
|
|
|
3417609 |
Ultrasonic inspection transducer
|
|
|
3416366 |
Variable size ultrasonic beam producing transducer
|
|
|
3402598 |
Nondestructive measurment of material strength
|
|
|
3387604 |
Focused contact transducer
|
|
|
3379051 |
Multiple beam ultrasonic nondestructive testing device
|
|
|
3379902 |
Ultrasonic testing apparatus
|
|
|
3310977 |
Ultrasonic inspection apparatus using variable focus and gate
|
|
|
3308651 |
Ultrasonic testing apparatus for determining the presence or absence of material within a tubular member
|
|
|
3269173 |
Apparatus for ultrasonic diagnosis
|
|
|
3262307 |
Omnidirectional ultrasonic search system
|
|
|
3251219 |
Transceiving ultrasonic impulses in medical diagnostics
|
|
|
3245251 |
Ultrasonic diagnostic testing apparatus
|
|
|
3242552 |
Electro-mechanical transducers and the fabrication thereof
|