Apparatus for measuring the speed of sound and Methode of measuring delayed time in ultrasonic flowmeter by using the apparatus and Methode of measuring distance between ultrasonic transducers in fluid by using the apparatus

摘要

PURPOSE: An apparatus for measuring a sound speed of an ultrasonic, a method for measuring delay time in an ultrasonic flowmeter, and a method for measuring a distance between ultrasonic transducers are provided to precisely measure the delay time and the distance between ultrasonic transducers in fluid by using the ultrasonic flowmeter. CONSTITUTION: An apparatus for measuring a sound speed includes a pair of ultrasonic transducers(11) positioned in opposition to each other in order to receive and transmit an ultrasonic wave. A supporting member(20) includes a pair of walls(211,212), a connector(22), and an ultrasonic transducer coupling part for a flowmeter. The pair of walls(211,212) are positioned in opposition to each other so as to support the pair of ultrasonic transducers. The connector(22) connects the walls(211,212) with each other. A cover member(30) covers the supporting member(20) and forms a fluid receiving space filled with fluid.