Non-bonded ultrasonic transducer

Title: Non-bonded ultrasonic transducer

Full Record
Other Related Research

Abstract

A mechanically assembled non-bonded ultrasonic transducer includes a substrate, a piezoelectric film, a wetting agent, a thin metal electrode, and a lens held in intimate contact by a mechanical clamp. No epoxy or glue is used in the assembly of this device.

Inventors:: Eoff, J M

Issue Date:: 1984-07-06

Research Org.:: Rockwell International Corp., Golden, CO (United States)

OSTI Identifier:: 5714270

Application Number:: ON: DE85011006

Assignee:: Dept. of Energy

DOE Contract Number:: AC04-76DP03533

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING; TRANSDUCERS; DESIGN; PIEZOELECTRICITY; ULTRASONIC TESTING; ACOUSTIC TESTING; ELECTRICITY; MATERIALS TESTING; NONDESTRUCTIVE TESTING; TESTING; 420500* - Engineering- Materials Testing

Citation Formats


                    Eoff, J M. Non-bonded ultrasonic transducer.  United States: N. p., 1984. 
        Web.

Copy to clipboard


                    Eoff, J M. Non-bonded ultrasonic transducer.  United States.

Copy to clipboard


                    Eoff, J M. Fri .  
        "Non-bonded ultrasonic transducer".  United States.

Copy to clipboard


                    
@article{osti_5714270,

  title        = {Non-bonded ultrasonic transducer},

  author       = {Eoff, J M},

  abstractNote = {A mechanically assembled non-bonded ultrasonic transducer includes a substrate, a piezoelectric film, a wetting agent, a thin metal electrode, and a lens held in intimate contact by a mechanical clamp. No epoxy or glue is used in the assembly of this device.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1984},

  month        = {7}

}

Copy to clipboard

Patent:

Search for the full text at the U.S. Patent and Trademark Office

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Non-bonded piezoelectric ultrasonic transducer

Patent Eoff, James M [Arvada, CO]

A mechanically assembled non-bonded ultrasonic transducer includes a substrate, a piezoelectric film, a wetting agent, a thin metal electrode, and a lens held in intimate contact by a mechanical clamp. No epoxy or glue is used in the assembly of this device.
Full Text Available
Bonded ultrasonic transducer and method for making

Patent Dixon, R D; Roe, L H; Migliori, A

An ultrasonic transducer is formed as a diffusion bonded assembly of piezoelectric crystal, backing material, and, optionally, a ceramic wear surface. The mating surfaces of each component are silver films that are diffusion bonded together under the application of pressure and heat. Each mating surface may also be coated with a reactive metal, such as hafnium, to increase the adhesion of the silver films to the component surfaces. Only thin silver films are deposited, e.g., a thickness of about 0.00635 mm, to form a substantially non-compliant bond between surfaces. The resulting transducer assembly is substantially free of self-resonances over normalmore »« less
Bonded ultrasonic transducer and method for making

Patent Dixon, Raymond D [Los Alamos, NM]; Roe, Lawrence H [Los Alamos, NM]; Migliori, Albert [Santa Fe, NM]

An ultrasonic transducer is formed as a diffusion bonded assembly of piezoelectric crystal, backing material, and, optionally, a ceramic wear surface. The mating surfaces of each component are silver films that are diffusion bonded together under the application of pressure and heat. Each mating surface may also be coated with a reactive metal, such as hafnium, to increase the adhesion of the silver films to the component surfaces. Only thin silver films are deposited, e.g., a thickness of about 0.00635 mm, to form a substantially non-compliant bond between surfaces. The resulting transducer assembly is substantially free of self-resonances over normalmore »« less
Full Text Available
Non-destructive evaluation means and method of flaw reconstruction utilizing an ultrasonic multi-viewing transducer data acquistion system

Patent Thompson, Donald O [Ames, IA]; Wormley, Samuel J [Ames, IA]

A multi-viewing ultrasound transducer acquisition system for non-destructive evaluation, flaw detection and flaw reconstruction in materials. A multiple transducer assembly includes a central transducer surrounded by a plurality of perimeter transducers, each perimeter transducer having an axis of transmission which can be angularly oriented with respect to the axis of transmission of the central transducer to intersect the axis of transmission of the central transducer. A control apparatus automatically and remotely positions the transducer assembly with respect to the material by a positioning apparatus and adjusts the pe GRANT REFERENCE This invention was conceived and reduced to practice at leastmore »« less
Full Text Available
In-plane ultrasonic velocity measurement of longitudinal and shear waves in the machine direction with transducers in rotating wheels

Patent Hall, M S; Jackson, T G; Knerr, C

An improved system for measuring the velocity of ultrasonic signals within the plane of moving web-like materials, such as paper, paperboard and the like. In addition to velocity measurements of ultrasonic signals in the plane of the web in the MD and CD, one embodiment of the system in accordance with the present invention is also adapted to provide on-line indication of the polar specific stiffness of the moving web. In another embodiment of the invention, the velocity of ultrasonic signals in the plane of the web are measured by way of a plurality of ultrasonic transducers carried by synchronouslymore »« less

Similar Records