Examples of ultrasonic measurements on a wide range of fruit
and vegetables can be found in Watts and Russell (1985), Povey
(1998), Mizrach et al. (1989), Mizrach et al. (2000), Camarenta
and Martinez-Mora (2006) and Mizrach (2008). It has so far proven
impossible to perform ultrasonic transmission through entire fruit
or vegetables due to the high levels of attenuation. Methods which
have been successful in performing ultrasonic measurements on
fruit have been generally limited to using cumbersome lab-based
devices, with experiments performed destructively on segments
of fruit, rather than the whole. Few methods have proven successful
in determining fruit and vegetable quality using ultrasonic
techniques.