Capacitive ultrasonic transducer with net backplate

Pentti Mattila, Jyrki Stor-Pellinen, Janne Ignatius, Jarmo Hietanen, Mauri Luukkala

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

Abstract

A study is presented of the function of an air-coupled capacitive ultrasonic transducer with uniform net backplate. Net backplates are an easy, fast-to-assemble alternative to grooved backplates. The frequency responses of the transducers were measured and the resonance frequencies were estimated. A procedure to study the electrostatics of the transducer with net backplate geometry is described with calculations of surface charge density distribution, capacitance and sensitivity.

Original languageEnglish
Pages (from-to)1119 - 1125
Number of pages7
JournalMeasurement Science and Technology
Volume11
Issue number8
DOIs
Publication statusPublished - 2000
MoE publication typeA1 Journal article-refereed

Fingerprint

Ultrasonic transducers
Transducer
Transducers
transducers
ultrasonics
Surface charge
Charge density
Frequency response
Electrostatics
Capacitance
Resonance Frequency
Frequency Response
frequency response
density distribution
Geometry
Air
capacitance
Charge
electrostatics
sensitivity

Keywords

  • capacitance
  • ultrasonic transmitting response
  • ultrasonic transducer
  • capacitive transducer
  • net backplate
  • air-borne ultrasound

Cite this

Mattila, P., Stor-Pellinen, J., Ignatius, J., Hietanen, J., & Luukkala, M. (2000). Capacitive ultrasonic transducer with net backplate. Measurement Science and Technology, 11(8), 1119 - 1125. https://doi.org/10.1088/0957-0233/11/8/304
Mattila, Pentti ; Stor-Pellinen, Jyrki ; Ignatius, Janne ; Hietanen, Jarmo ; Luukkala, Mauri. / Capacitive ultrasonic transducer with net backplate. In: Measurement Science and Technology. 2000 ; Vol. 11, No. 8. pp. 1119 - 1125.
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Mattila, P, Stor-Pellinen, J, Ignatius, J, Hietanen, J & Luukkala, M 2000, 'Capacitive ultrasonic transducer with net backplate', Measurement Science and Technology, vol. 11, no. 8, pp. 1119 - 1125. https://doi.org/10.1088/0957-0233/11/8/304

Capacitive ultrasonic transducer with net backplate. / Mattila, Pentti; Stor-Pellinen, Jyrki; Ignatius, Janne; Hietanen, Jarmo; Luukkala, Mauri.

In: Measurement Science and Technology, Vol. 11, No. 8, 2000, p. 1119 - 1125.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Capacitive ultrasonic transducer with net backplate

AU - Mattila, Pentti

AU - Stor-Pellinen, Jyrki

AU - Ignatius, Janne

AU - Hietanen, Jarmo

AU - Luukkala, Mauri

PY - 2000

Y1 - 2000

N2 - A study is presented of the function of an air-coupled capacitive ultrasonic transducer with uniform net backplate. Net backplates are an easy, fast-to-assemble alternative to grooved backplates. The frequency responses of the transducers were measured and the resonance frequencies were estimated. A procedure to study the electrostatics of the transducer with net backplate geometry is described with calculations of surface charge density distribution, capacitance and sensitivity.

AB - A study is presented of the function of an air-coupled capacitive ultrasonic transducer with uniform net backplate. Net backplates are an easy, fast-to-assemble alternative to grooved backplates. The frequency responses of the transducers were measured and the resonance frequencies were estimated. A procedure to study the electrostatics of the transducer with net backplate geometry is described with calculations of surface charge density distribution, capacitance and sensitivity.

KW - capacitance

KW - ultrasonic transmitting response

KW - ultrasonic transducer

KW - capacitive transducer

KW - net backplate

KW - air-borne ultrasound

U2 - 10.1088/0957-0233/11/8/304

DO - 10.1088/0957-0233/11/8/304

M3 - Article

VL - 11

SP - 1119

EP - 1125

JO - Measurement Science and Technology

JF - Measurement Science and Technology

SN - 0957-0233

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Mattila P, Stor-Pellinen J, Ignatius J, Hietanen J, Luukkala M. Capacitive ultrasonic transducer with net backplate. Measurement Science and Technology. 2000;11(8):1119 - 1125. https://doi.org/10.1088/0957-0233/11/8/304