electron-acoustic microscopy

electron-acoustic microscopy

[i′lek‚trän ə′küs·tik mī′kräs·kə·pē]
(physics)
A technique for producing images that show variations in an object's thermal and elastic properties; an electron beam generates ultrasonic waves in the specimen which are detected by a piezoelectric transducer whose output controls the brightness of a spot sweeping a cathode-ray tube in synchronism with the electron beam.