Patent ID: 9551688
Date: 2017-01-24
CPC Classifications: G01N

Claim:
1. A property measuring device for measuring a measurement object, the device comprising: an acoustic wave emitting portion, which in operation, emits an amplitude-modulated or frequency-modulated acoustic wave modulated by a modulated frequency (f mod) satisfying the formula: where v is a sound speed in a medium between the acoustic wave emitting portion and the measurement object and d is a distance between the acoustic wave emitting portion and the measurement object; a receiver for receiving an electromagnetic field generated by the measurement object when the measurement object is irradiated by the acoustic wave; and a measuring portion for extracting at least one type of property selected from a group consisting of an electric property, a magnetic property, an electromechanical property, and a magnetomechanical property of the measurement object, based on at least one measurement selected from a group consisting of measurements of a strength, a phase, and a frequency of the electromagnetic field.