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A simple non-linear technique for secondary calibration of ultrasonic probes

AuthorsGaete Garretón, Luis; Vargas Hernández, Yolanda; Montoya Vitini, Fausto; Gallego Juárez, Juan Antonio
KeywordsAcoustic waves
Frequency response
Ultrasonic probes
Issue Date1998
CitationSensors and Actuators A: Physical 69 : 68-71 (1998)
AbstractThis paper presents a method for frequency-response evaluation of ultrasonic probes in air. It mainly consists of propagating a non-linear plane acoustic wave in a waveguide and in measuring its harmonics content by alternately usinga referencep robe and the probe to be calibrated. From the comparison between both measurements, the sensitivity of the unknown probe can be determined over a wide frequency band. The principal advantages of this method are the simplicity of the experimental set-up and the rapidity in the determination of the probe sensitivityf or a certainn umbero f frequenciesT. he methodh asb eeni mplementefdo r the frequencyr angeo f approximately 20 to 190 kHz in an air-filled tube.
Description4 páginas, 7 figuras
Publisher version (URL)http://dx.doi.org/10.1016/S0924-4247(97)01757-3
Appears in Collections:(IA) Artículos
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