Publication detail

New Design of the Wideband High Sensitive Acoustic Emmision Sensors

FIALKA, J. KREJČÍ, J. BENEŠ, P. HAVRÁNEK, Z.

Original Title

New Design of the Wideband High Sensitive Acoustic Emmision Sensors

English Title

New Design of the Wideband High Sensitive Acoustic Emmision Sensors

Type

abstract

Language

en

Original Abstract

The paper describes the construction of a wideband sensor to calibrate acoustic emission sensors via the reciprocal method according to NDIS 2109. The discussion is focused on the results obtained from the calibration of both a set of wideband sensors having a conical active element recommended by NIST and PINDUCER sensors with long damping rods and thin discs. Our special embodiment modifies the solution originally presented by [1], with various dimensions of the conical elements and the thin disc from piezoelectric ceramics. We analyze the impact exerted by the shape of the active element on the final parameters of the reference sensor. The sensors are tested by means of longitudinal and transverse calibration in a dedicated laboratory [2] and using a aluminium hemisphere [3] to enable the transverse calibration. The outcome of the research consists in a compact approach to yield the design and technological procedures for the manufacturing and measurement of acoustic emission sensors; the actual output of the calibration consists in the frequency characteristics of the sensor. The measured results are compared with those acquired via simulation based on the finite element method. [1] Y.–Ch. Lee, Z. Lin, Miniature piezoelectric conical transducer: Fabrication, evaluation and application, Ultrasonics, vol. 44, no. 1, 2006, DOI 10.1016/j.ultras.2006.05.197. [2] P. Benes, J. Fialka, Comparison of methods for absolute calibration of broadband AE sensors, EWGAE-ICAE2012, Granada, 2012. [3] P. Theobald, R. Pocklington, Velocity sensitivity calibration of AE sensors using the through wave method and laser interferometry, EWGAE 2010, Vienna, 2010.

English abstract

The paper describes the construction of a wideband sensor to calibrate acoustic emission sensors via the reciprocal method according to NDIS 2109. The discussion is focused on the results obtained from the calibration of both a set of wideband sensors having a conical active element recommended by NIST and PINDUCER sensors with long damping rods and thin discs. Our special embodiment modifies the solution originally presented by [1], with various dimensions of the conical elements and the thin disc from piezoelectric ceramics. We analyze the impact exerted by the shape of the active element on the final parameters of the reference sensor. The sensors are tested by means of longitudinal and transverse calibration in a dedicated laboratory [2] and using a aluminium hemisphere [3] to enable the transverse calibration. The outcome of the research consists in a compact approach to yield the design and technological procedures for the manufacturing and measurement of acoustic emission sensors; the actual output of the calibration consists in the frequency characteristics of the sensor. The measured results are compared with those acquired via simulation based on the finite element method. [1] Y.–Ch. Lee, Z. Lin, Miniature piezoelectric conical transducer: Fabrication, evaluation and application, Ultrasonics, vol. 44, no. 1, 2006, DOI 10.1016/j.ultras.2006.05.197. [2] P. Benes, J. Fialka, Comparison of methods for absolute calibration of broadband AE sensors, EWGAE-ICAE2012, Granada, 2012. [3] P. Theobald, R. Pocklington, Velocity sensitivity calibration of AE sensors using the through wave method and laser interferometry, EWGAE 2010, Vienna, 2010.

Keywords

acoustic emmision, sensor, wideband, calibration

Released

29.01.2019

Publisher

Fyzikální ústav AV ČR, v. v. i.

Pages from

55

Pages to

55

Pages count

1

Documents

BibTex


@misc{BUT155350,
  author="Jiří {Fialka} and Jakub {Krejčí} and Petr {Beneš} and Zdeněk {Havránek}",
  title="New Design of the Wideband High Sensitive Acoustic Emmision Sensors",
  annote="The paper describes the construction of a wideband sensor to calibrate acoustic emission sensors via the reciprocal method according to NDIS 2109. The discussion is focused on the results obtained from the calibration of both a set of wideband sensors having a conical active element recommended by NIST and PINDUCER sensors with long damping rods and thin discs. Our special embodiment modifies the solution originally presented by [1], with various dimensions of the conical elements and the thin disc from piezoelectric ceramics. We analyze the impact exerted by the shape of the active element on the final parameters of the reference sensor.
The sensors are tested by means of longitudinal and transverse calibration in a dedicated laboratory [2] and using a aluminium hemisphere [3] to enable the transverse calibration. The outcome of the research consists in a compact approach to yield the design and technological procedures for the manufacturing and measurement of acoustic emission sensors; the actual output of the calibration consists in the frequency characteristics of the sensor. The measured results are compared with those acquired via simulation based on the finite element method.

[1] Y.–Ch. Lee, Z. Lin, Miniature piezoelectric conical transducer: Fabrication, evaluation and application, Ultrasonics, vol. 44, no. 1, 2006, DOI 10.1016/j.ultras.2006.05.197.
[2] P. Benes, J. Fialka, Comparison of methods for absolute calibration of broadband AE sensors, EWGAE-ICAE2012, Granada, 2012.
[3] P. Theobald, R. Pocklington, Velocity sensitivity calibration of AE sensors using the through wave method and laser interferometry, EWGAE 2010, Vienna, 2010.
",
  address="Fyzikální ústav AV ČR, v. v. i.",
  booktitle="Piezo 2019: Electroceramics for End Users X - Book of Abstracts",
  chapter="155350",
  howpublished="print",
  institution="Fyzikální ústav AV ČR, v. v. i.",
  year="2019",
  month="january",
  pages="55--55",
  publisher="Fyzikální ústav AV ČR, v. v. i.",
  type="abstract"
}