Is Calibration Necessary?
Robert A. Day examines the wisdom of neglecting periodic calibration and maintenance for periods of years as has occurred at some institutions.
http://www.xdcr.com/calibration.html
Surface-Acoustic Waves
Theory and Modeling (J. Fagerholm, A. T. Friberg, J. Koskela, T. Makkonen and M. M. Salomaa)
http://waist.hut.fi/annrep/1996/node32.html#SECTION00641000000000000000
Acoustoelastic Phenomena of Wood
Yasutoshi Sasaki and Kosei Ando Faculty of Agricultural Sciences, Nagoya University Nagoya 464-8601, Japan (NDT-net)
http://www.ndt.net/article/v04n11/sasaki/sasaki.htm
Advances in Ultrasonic transducer Development
H.H.J. Huynen, F.H. Dijkstra, T. Bouma, Röntgen Technische Dienst bv, Rotterdam, The Netherlands H. Wüstenberg
http://www.ndt.net/article/wcndt00/papers/idn048/idn048.htm
Material Characterisation Probe
Harri Jeskanen, Pentti Kauppinen, Jorma Pitkänen and Seppo Tähtinen VTT Manufacturing Technology FINLAND (NDT-net
http://www.ndt.net/article/wcndt00/papers/idn628/idn628.htm
Interfacing Piezo Film to Electronics
A properly designed interface circuit plays a key role in various piezo film applications. As the applications of piezo film spans from toys to military sensors, interfacing to electronics is application dependent. (AMP)
http://www.amp.com/products/technology/articles/interface.stm