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

fYear

2012

fDate

5-8 Aug. 2012

Firstpage

641

Lastpage

646

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechatronics and Automation (ICMA), 2012 International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4673-1275-2

Type

conf

DOI

10.1109/ICMA.2012.6283217

Filename

6283217