Physical property value detection method for measurement object and physical property value detection system for measurement object

摘要

PPROBLEM TO BE SOLVED: To provide a method and system for detecting a property value of an object to be measured, capable of detecting the property value using ultrasonic beams with high accuracy. PSOLUTION: A property value detection method of the object to be measured includes causing an ultrasonic beam US radiated in air to pass through the object to be measured 30, and subsequently to be received, and detecting a property value AP of the object to be measured from an intensity UC of the received ultrasonic beam, then obtaining property values by frequency AP1, AP2, AP3 of the objects to be measured from intensities UC1, UC2, UC3, respectively, with regard to ultrasonic beams with respective frequencies f1, f2, f3, based on correlations G1, G2, G3 between intensities and property values of the objects to be measured, with regard to ultrasonic beams with mutually differing frequencies, and identifying a property value of the object to be measured, based on each of property values by frequency. PCOPYRIGHT: (C)2011,JPO&INPIT