Design of Pulse Excitation Source for Electromagnetic Acoustic Emission

Chuang Zhang; Chengfeng Li; Suzhen Liu; Yang Xiao; Qingxin Yang

doi:10.19595/j.cnki.1000-6753.tces.170205

Design of Pulse Excitation Source for Electromagnetic Acoustic Emission

Chuang Zhang
, Chengfeng Li^*
, Suzhen Liu
, Yang Xiao
, Qingxin Yang

^*Corresponding author for this work

Hebei University of Technology
Tiangong University

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Electromagnetic loads of metal structures will produce stress wave signal at the crack, this phenomenon can be used to non-destructive testing of metal defects,which is electromagnetic acoustic emission. Pulse excitation as the core of electromagnetic loading, the frequency and amplitude of its output current have significant effects on loading effect. In order to meet the requirements of impulse excitation for electromagnetic loading experiment, an adjustable regulated power supply based on half bridge switching circuit principle and a charge and discharge circuit with capacitor as energy storage were designed. Pulse current with adjustable frequency and amplitude was produced by controlling charge and discharge process of capacitor through MCU system. The result of the electromagnetic loading experiment shows that the excitation source meets design requirements.

Original language	English
Pages (from-to)	203-208
Number of pages	6
Journal	Diangong Jishu Xuebao/Transactions of China Electrotechnical Society
Volume	32
DOIs	https://doi.org/10.19595/j.cnki.1000-6753.tces.170205
State	Published - 30 Jul 2017
Externally published	Yes

Keywords

Adjustable voltage source
Charge and discharge circuit
Electromagnetic load
Pulse excitation source

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10.19595/j.cnki.1000-6753.tces.170205

Cite this

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title = "Design of Pulse Excitation Source for Electromagnetic Acoustic Emission",

abstract = "Electromagnetic loads of metal structures will produce stress wave signal at the crack, this phenomenon can be used to non-destructive testing of metal defects,which is electromagnetic acoustic emission. Pulse excitation as the core of electromagnetic loading, the frequency and amplitude of its output current have significant effects on loading effect. In order to meet the requirements of impulse excitation for electromagnetic loading experiment, an adjustable regulated power supply based on half bridge switching circuit principle and a charge and discharge circuit with capacitor as energy storage were designed. Pulse current with adjustable frequency and amplitude was produced by controlling charge and discharge process of capacitor through MCU system. The result of the electromagnetic loading experiment shows that the excitation source meets design requirements.",

keywords = "Adjustable voltage source, Charge and discharge circuit, Electromagnetic load, Pulse excitation source",

author = "Chuang Zhang and Chengfeng Li and Suzhen Liu and Yang Xiao and Qingxin Yang",

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doi = "10.19595/j.cnki.1000-6753.tces.170205",

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journal = "Diangong Jishu Xuebao/Transactions of China Electrotechnical Society",

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TY - JOUR

T1 - Design of Pulse Excitation Source for Electromagnetic Acoustic Emission

AU - Zhang, Chuang

AU - Li, Chengfeng

AU - Liu, Suzhen

AU - Xiao, Yang

AU - Yang, Qingxin

PY - 2017/7/30

Y1 - 2017/7/30

N2 - Electromagnetic loads of metal structures will produce stress wave signal at the crack, this phenomenon can be used to non-destructive testing of metal defects,which is electromagnetic acoustic emission. Pulse excitation as the core of electromagnetic loading, the frequency and amplitude of its output current have significant effects on loading effect. In order to meet the requirements of impulse excitation for electromagnetic loading experiment, an adjustable regulated power supply based on half bridge switching circuit principle and a charge and discharge circuit with capacitor as energy storage were designed. Pulse current with adjustable frequency and amplitude was produced by controlling charge and discharge process of capacitor through MCU system. The result of the electromagnetic loading experiment shows that the excitation source meets design requirements.

AB - Electromagnetic loads of metal structures will produce stress wave signal at the crack, this phenomenon can be used to non-destructive testing of metal defects,which is electromagnetic acoustic emission. Pulse excitation as the core of electromagnetic loading, the frequency and amplitude of its output current have significant effects on loading effect. In order to meet the requirements of impulse excitation for electromagnetic loading experiment, an adjustable regulated power supply based on half bridge switching circuit principle and a charge and discharge circuit with capacitor as energy storage were designed. Pulse current with adjustable frequency and amplitude was produced by controlling charge and discharge process of capacitor through MCU system. The result of the electromagnetic loading experiment shows that the excitation source meets design requirements.

KW - Adjustable voltage source

KW - Charge and discharge circuit

KW - Electromagnetic load

KW - Pulse excitation source

UR - https://www.scopus.com/pages/publications/85029695366

U2 - 10.19595/j.cnki.1000-6753.tces.170205

DO - 10.19595/j.cnki.1000-6753.tces.170205

M3 - 文章

AN - SCOPUS:85029695366

SN - 1000-6753

VL - 32

SP - 203

EP - 208

JO - Diangong Jishu Xuebao/Transactions of China Electrotechnical Society

JF - Diangong Jishu Xuebao/Transactions of China Electrotechnical Society

ER -

Design of Pulse Excitation Source for Electromagnetic Acoustic Emission

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Keywords

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