Title :
A voltage-current method of measuring ultrasonic transducer impedance
Author :
Qinxue Pan ; Dingguo Xiao ; Mingkai Deng ; Huiling Ren ; Yao Xu ; Chunguang Xu
Author_Institution :
Key Lab. of Fundamental Sci. for Adv. Machining, Beijing Inst. of Technol., Beijing, China
Abstract :
Impedance is one of the most important characteristics of ultrasonic transducer. This paper focuses on the measurement method of ultrasonic transducer impedance, studying many methods mentioned in domestic and international standard. The voltage-current method is proposed in this paper. What´s more, a measurement system based on this method is constructed. Then lots of experiments are performed to prove this method. The result is compared with that measured by using the impedance analyzer, which proves that the voltage-current method can measure the transducer impedance correctly.
Keywords :
acoustic impedance; measurement standards; ultrasonic transducers; ultrasonic variables measurement; measurement standard; ultrasonic transducer impedance; voltage-current method; Current measurement; Frequency measurement; Impedance; Impedance measurement; Measurement uncertainty; Transducers; Voltage measurement; impedance; ultrasonic transducer; voltage-current method;
Conference_Titel :
Nondestructive Evaluation/Testing: New Technology & Application (FENDT), 2013 Far East Forum on
Conference_Location :
Jinan
Print_ISBN :
978-1-4673-6018-0
DOI :
10.1109/FENDT.2013.6635541
