Title :
Measurement of characteristic parameters of ultrasonic flaw detectors
Author :
Xiao, Dingguo ; Yang, Bo ; Pan, Qinxue ; Zhang, Kai ; Deng, Mingkai
Author_Institution :
Sch. of Mech. Eng., Beijing Inst. of Technol., Beijing, China
Abstract :
In order to guarantee the liability and accuracy of ultrasonic flaw detectors, a system is developed for measuring the characteristics of ultrasonic flaw detectors. The parameters which evaluate the characteristics of the pulse excitation circuit include pulse amplitude voltage, pulse rise time, pulse duration, pulse repetition frequency, peak frequency, bandwidth and output impedance. The parameters which evaluate the characteristics of the amplifier circuit include cut-off frequency, pass band, dynamic range, input impedance and equivalent input noise. The parameters which evaluate the coupling characteristics of these two circuits include crosstalk and blocking time during transmission.
Keywords :
flaw detection; parametric amplifiers; pulse amplifiers; test equipment; ultrasonic devices; ultrasonic materials testing; ultrasonic measurement; amplifier circuit; bandwidth; blocking time; characteristic parameter measurement; cut-off frequency; dynamic range; equivalent input noise; input impedance; output impedance; pass band; peak frequency; pulse amplitude voltage; pulse duration; pulse excitation circuit; pulse repetition frequency; pulse rise time; ultrasonic flaw detectors; Acoustics; Detectors; Frequency measurement; Impedance; Pulse measurements; Time measurement; Voltage measurement; characteristic; measure; measuring system; ultrasonic flaw detector;
Conference_Titel :
Mechatronics and Automation (ICMA), 2012 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4673-1275-2
DOI :
10.1109/ICMA.2012.6283217
