Method and means for measuring acoustic emissions

Title: Method and means for measuring acoustic emissions

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Abstract

The detection of acoustic emissions emanating from an object is achieved with a capacitive transducer coupled to the object. The capacitive transducer is charged and then allowed to discharge with the rate of discharge being monitored. Oscillations in the rate of discharge about the normally exponential discharge curve for the capacitive transducer indicate the presence of acoustic emissions.

Inventors:

Renken, Jr., Claus J. ^[1]

(Holts Summit, MO)

Issue Date:: 1976-01-06

Research Org.:: Argonne National Laboratory (ANL), Argonne, IL

OSTI Identifier:: 862436

Patent Number(s):: 3930405

Application Number:: 05/506,819

Assignee:: United States of America as represented by United States Energy (Washington, DC)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01H - MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

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G - PHYSICS G01 - MEASURING G01H - MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
G01H11/06 - by electric means

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N2291/02827 - Elastic parameters, strength or force

G - PHYSICS G01 - MEASURING G01L - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
G01L1/255 - {using acoustic waves, or acoustic emission

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N29/14 - using acoustic emission techniques {

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DOE Contract Number:: W-31109-ENG-38

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; means; measuring; acoustic; emissions; detection; emanating; achieved; capacitive; transducer; coupled; charged; allowed; discharge; rate; monitored; oscillations; normally; exponential; curve; indicate; presence; acoustic emission; acoustic emissions; capacitive transducer; transducer coupled; /73/

Citation Formats


                    Renken, Jr., Claus J. Method and means for measuring acoustic emissions.  United States: N. p., 1976. 
        Web.

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                    Renken, Jr., Claus J. Method and means for measuring acoustic emissions.  United States.

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                    Renken, Jr., Claus J. Tue .  
        "Method and means for measuring acoustic emissions".  United States.  https://www.osti.gov/servlets/purl/862436.

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@article{osti_862436,

  title        = {Method and means for measuring acoustic emissions},

  author       = {Renken, Jr., Claus J.},

  abstractNote = {The detection of acoustic emissions emanating from an object is achieved with a capacitive transducer coupled to the object. The capacitive transducer is charged and then allowed to discharge with the rate of discharge being monitored. Oscillations in the rate of discharge about the normally exponential discharge curve for the capacitive transducer indicate the presence of acoustic emissions.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1976},

  month        = {1}

}

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