resonance method

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(′rez·ən·əns ′meth·əd)

(electricity) A method of determining the impedance of a circuit element, in which resonance frequency of a resonant circuit containing the element is measured.
(engineering) In ultrasonic testing, a method of measuring the thickness of a metal by varying the frequency of the beam transmitted to excite a maximum amplitude of vibration.


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valence-bond method (physical chemistry)
Isidor Isaac Rabi (Austrian–American physicist)
Edward Mills Purcell (American physicist)
Year 1937 (in Science & Technology)