Backing layers on electroacoustic properties of the acoustic emission sensors

被引：22

作者：

Zhang, Wenkang ^{[1
]}

Jia, Hongyu ^{[1
]}

Gao, Guangpeng ^{[1
]}

Cheng, Xin ^{[1
]}

Du, Peng ^{[1
]}

Xu, Dongyu ^{[1
]}

机构：

[1] Univ Jinan, Shandong Prov Key Lab Preparat & Measurement Bldg, Jinan 250022, Shandong, Peoples R China

来源：

APPLIED ACOUSTICS | 2019年 / 156卷

基金：

中国国家自然科学基金;

关键词：

Acoustic emission; Sensor; Acoustic impedance; Backing layer; Bandwidth;

D O I：

10.1016/j.apacoust.2019.07.038

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The acoustic emission sensors were tailored by using Piezoelectric Lead Zirconate Titanate (PZT) ceramic as sensing element and different materials as backing layers. The influences of backing layers on electroacoustic properties of the sensors were investigated based on the pencil lead break test and simulated noise experiments. The results show that compared with PZT ceramic, the resonant frequency of the acoustic emission sensors decreases due to damping effects from backing layer and the metal shell. The backing layer of air has the largest acoustic reflection coefficient, and epoxy resin/tungsten powder has the largest acoustic attenuation performance, which is benefit to improve the bandwidth of the acoustic emission sensor. The acoustic emission sensors made of different backing layers own good reception ability to acoustic emission signals, and the characteristic parameters analysis results prove their good identifying ability to effective acoustic emission signals and noise signals. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页码：387 / 393

页数：7

共 21 条

[1] Acoustic emission sensor properties of active fibre composite elements compared with commercial acoustic emission sensors [J].

Barbezat, M ;

Brunner, AJ ;

Flüeler, P ;

Huber, C ;

Kornmann, X .

SENSORS AND ACTUATORS A-PHYSICAL, 2004, 114 (01) :13-20

[2] ACOUSTIC EMISSION - A NEW NONDESTRUCTIVE TESTING TOOL [J].

DUNEGAN, H ;

HARRIS, D .

ULTRASONICS, 1969, 7 (03) :160-&

[3]

Dunegan H.L., 1968, ENG FRACT MECH, V1, P105, DOI [10.1016/0013-7944(68)90018-0, DOI 10.1016/0013-7944(68)90018-0]

[4] Acoustic emission source localization in thin metallic plates: A single-sensor approach based on multimodal edge reflections [J].

Ebrahimkhanlou, A. ;

Salamone, S. .

ULTRASONICS, 2017, 78 :134-145

[5] Single-Sensor Acoustic Emission Source Localization in Plate-Like Structures Using Deep Learning [J].

Ebrahimkhanlou, Arvin ;

Salamone, Salvatore .

AEROSPACE, 2018, 5 (02)

[6] A probabilistic framework for single-sensor acoustic emission source localization in thin metallic plates [J].

Ebrahimkhanlou, Arvin ;

Salamone, Salvatore .

SMART MATERIALS AND STRUCTURES, 2017, 26 (09)

[7] PLATE WAVE ACOUSTIC-EMISSION [J].

GORMAN, MR .

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1991, 90 (01) :358-364

[8] ACOUSTIC-EMISSION MECHANISMS DURING HIGH-CYCLE FATIGUE [J].

HAMEL, F ;

BAILON, JP ;

BASSIM, MN .

ENGINEERING FRACTURE MECHANICS, 1981, 14 (04) :853-860

[9] Investigation of the influence of oil film thickness on helical gear defect detection using Acoustic Emission [J].

Hamel, Mhmod ;

Addali, Abdulmajid ;

Mba, David .

APPLIED ACOUSTICS, 2014, 79 :42-46

[10] CONTINUOUS MONITORING OF FATIGUE-CRACK GROWTH BY ACOUSTIC-EMISSION TECHNIQUES [J].

HARRIS, DO ;

DUNEGAN, HL .

EXPERIMENTAL MECHANICS, 1974, 14 (02) :71-81

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