The impulse response of a piezoelectric transducer can be calculated using the electrical equivalent circuit model with the Manson method for a bandwidth in far field. Nevertheless, these approaches are not sufficiently precise because the importance of homogeneous structure medium where the transducer emit the signal in part determine the bandwidth in which it acts due to the interactions of this with the environment. This paper describes preliminary research results on piezoelectric impulse response measurement in small space, making use of the procedure presented by Angelo Farina for transducers emitting in reverberant spaces. Combination the Basics of Exponential Sine Sweep (ESS) method, techniques of arrival detection and signal processing it is possible to obtain the impulse response in piezoelectric transducer emitting in a homogeneous medium. The propose of this technique is the characterization of the signal produced by a hadron beam in cancer treatments or hadrontherapy, for its corresponding analysis in homogeneous mediums whose characteristics are similar to human tissue.
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Measurement transducer impulse response using an exponential Sine Sweep method
Published: 14 November 2018 by MDPI in 5th International Electronic Conference on Sensors and Applications session Applications
Keywords: Impulse response; piezoelectric ceramics; Sine Sweep; medical applications