English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/5626
Title: Radiating Wideband Sonar Pulses with Resonant Sandwich Transducers by Designing the Driving Voltage Waveform
Authors: Cobo, Pedro; Ranz Guerra, Carlos; Siguero Guerra, Manuel
Keywords: Pulse radiation
Sandwich Transducers
Piezoelectric Transducers
Driving Voltage Waveform
Resolving Power
Issue Date: Sep-2001
Publisher: Acoustical Society of Italy
Citation: 17th International Congress on Acoustics, Underwater Acoustics, Ocean Acoustic Tomography, 6C.06.01
Abstract: A technique to radiate short length, high resolution, pulses with conventional piezoelectric transducers is described. It consists on designing the driving voltage waveform so that the radiated pulse has a zero-phase cosine-magnitude spectrum compatible with the natural frequency response of the transducer. According to Berkhout [1], zero-phase cosine-magnitude pulses have the minimum length, maximum resolution, within a prescribed frequency band. When applied to a 9 kHz sandwich transducer, this technique decreases the pulse length from 1 ms to 0.13 ms, increases the bandwidth from 1.4 kHz to 11.25 kHz, and lowers the Q factor from 6.2 to 1.23, at the cost of 33% of amplitude loss.
Description: Communication presented at the 17th International Congress on Acoustics, Rome, 2-7 September 2001.
URI: http://hdl.handle.net/10261/5626
ISBN: 88-88387-01-3
Appears in Collections:(IFA) Comunicaciones congresos
Files in This Item:
File Description SizeFormat 
Cobo_ICA17.pdf172,83 kBAdobe PDFThumbnail
Show full item record

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.