A method for the calibration of wideband ultrasonic sensors for optoacoustics

dc.creatorHass, Ken
dc.creatorInsabella, Roberto Mariano
dc.creatorGonzález, Martín Germán
dc.creatorRiobó, Lucas Matías
dc.creatorVeiras, Francisco Ezequiel
dc.date.accessioned2022-02-04T16:18:05Z
dc.date.accessioned2022-10-15T00:25:03Z
dc.date.available2022-02-04T16:18:05Z
dc.date.available2022-10-15T00:25:03Z
dc.date.created2022-02-04T16:18:05Z
dc.date.issued2021-06-16
dc.identifierHass, Ken; Insabella, Roberto Mariano; González, Martín Germán; Riobó, Lucas Matías; Veiras, Francisco Ezequiel; A method for the calibration of wideband ultrasonic sensors for optoacoustics; American Institute of Physics; Review of Scientific Instruments; 92; 6; 16-6-2021; 1-6
dc.identifier0034-6748
dc.identifierhttp://hdl.handle.net/11336/151364
dc.identifier1089-7623
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4324525
dc.description.abstractA method for calibration of ultrasonic sensors for optoacoustics that provides both frequency response and sensitivity is presented. In order to obtain the bandwidth and the frequency response of an uncalibrated sensor, a point source with broadband spectra generated by a laser-induced bubble on a copper wire submerged in water is employed. On the other hand, the sensitivity measurement relies on the spatial symmetry of the pressure pulse and on a calibrated transducer. Therefore, two sensors are employed to detect the pressure pulse at the same distance from the source. The symmetry of the acoustic field that arrives at both transducers is adjusted and verified by means of an optical interferometer that provides a null signal when the copper wire is placed at the right position. The method is tested on the characterization of a thin-film polymeric piezoelectric transducer with a cylindrical focused shape.
dc.languageeng
dc.publisherAmerican Institute of Physics
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/10.1063/5.0041613
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1063/5.0041613
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectOptoacoustics
dc.subjectSensors
dc.subjectUltrasound
dc.subjectOptoacoustic tomography
dc.titleA method for the calibration of wideband ultrasonic sensors for optoacoustics
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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