Using the Specular Component of Sphere Backscattering for Broadband Transceiver Calibration
Abstract:Transducers are generally calibrated using triple reciprocity or by reference to a standard. In the case where the transducer is acting as a transceiver, backscattering measurements from tragets with known scattering characteristics can be employed. In the present study the reflected component of the band limited impulse response of a sphere is used to calibrate a broadband transceiver, and comparisons are made with self reciprocity measurements using the reflection from an air – water interface. Both these results are compared with a calibration curve for the transducer obtained using the reference method. The advantage of using a target of known scattering properties is the transceiver calibration can be readily and repeatedly checked, and any changes can be accommodated into the measurement program.
Document Type: Letter Section
Publication date: July 1, 1996
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- Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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