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  • Quantitative information on damage processes obtained in acoustic-emission measurements
    ...s/E ~ 10 – 3 (comparable with the yield point) and releases energy U ~ s2d 3/2E; for a ball to simulate this crack... ...s/E ), i.e., the calibrator should fire the ball... ...a height of free fall of tens of meters). Acoustic equipment records events during failure, from which one reckons the number of pulses and draws certain...
    Indeed, from personal experience, in some countries the use of acoustic calibrators was not introduced until the 1990s. Early calibrators were simply a box with a diaphragm onto which tiny ball -bearings were dropped from... Falling ball calibrator, Courtesy Cirrus Research.
  • Particle Detection in Oil Using Acoustic and Electrical Based Techniques in Correlation with an Inference Method
    A calibrator of specific output charge values (5, 20, 100, 500pC) is directly connected to the terminals... First acoustic signal Thus, the produced value on the DSO in volts can be transferred to impact momentum in kg.m/s. To accomplish this, two balls made of steel with diameters 2.3 and 1.5 mm are left to fall freely from the oil...
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    ...acknowledgedly acknowledger acknowledgers acknowledges acknowledging acme acne acned acolyte acolytes acorn acorn's acorns acoustic acoustical acoustically acoustician... ...balefulness baler balers bales baling balk balked balker balkier balkiness balking balks balky ball ballad ballad's ballads... ...calendar's calendared calendaring calendars calf calfs calibrate calibrated calibrater calibrates calibrating calibration calibrations calibrator calibrators calico caliph... ...feelingly feelingness feelings feels fees feet feign feigned feigner feigning feigns felicities felicity fell felled feller fellers...
  • Progress Towards an Acoustic Measurement of the Molar Gas Constant at INRIM
    ...from nine to five, the number of precisely-measurable, triply-degenerate modes that fell within the frequency... To reduce the perturbations of the acoustic modes caused by the coils, we embedded them in an... Two steel balls were glued to the exterior of the equatorial collars, to mark their relative azimuthal... ...the ASL F18 resistance bridge used for the present measurements was evaluated with a resistance bridge calibrator .

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Martel Electronics Corporation
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Ametek Test & Calibration Instruments