Measuring and testing – Vibration – By mechanical waves
Patent
1979-06-01
1981-01-27
Kreitman, Stephen A.
Measuring and testing
Vibration
By mechanical waves
G01N 2900
Patent
active
042467926
ABSTRACT:
Self-contained ultrasonic scanning apparatus for insonifying a specimen including a housing, an ultrasonic transducer disposed within the housing and mounted for movement therewithin. Magnetic apparatus may be provided for effecting movement of the transducer and the magnetic apparatus may include a permanent magnet and an electromagnet. Apparatus is provided for electrically energizing the electromagnet. A cathode-ray tube is disposed within the housing with the screen visible from the exterior of the housing. Signal processing apparatus is provided for receiving signals from the transducer and suitably providing corresponding signals to the cathode-ray tube. The housing is preferably of such size and the apparatus of such weight as to be readily portable by an individual using a single hand.
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W. H. Schuette et al., "Real Time Two Dimensional Mechanical Ultrasonic Sector Scanner with Electronic Control of Sector Width", Jul. 1976.
Kreitman Stephen A.
Silverman Arnold B.
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