Re: Can US propagate through agricultural products?

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Re: Can US propagate through agricultural products?
Posted by: Tom Nelligan , E-mail: nelligant@panametrics.com, on June 03, 1997 at 15:14:38:
In Reply to: Can US propagate through agricultural products? posted by : Liviu Singher on June 01, 1997 at 22:20:05:

: Since an agricultural product (mainly fruits and vegetables) is a
: complex biological structure, it seems to me that it may be quite
: difficult to evaluate using ultrasound. Is anybody familiar with
: work performed for the evaluation of the quality of agricultural
: products? What is the conclusion?
: Liviu Singher
It's certainly not a major application, but it can be done. We recently supplied equipment to a customer who is evaluating the freshness of watermelons by looking at longitudinal wave transit time in a low frequency (100 KHz) through transmission mode.
I am also aware of similar testing involving potatoes, and I suspect that with sufficient "calibration" research the principle could be applied to many fruits and vegetables that get softer and/or change water content as they ripen. Bon appetite!
--Tom Nelligan
Panametrics, Inc.

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: : : Since an agricultural product (mainly fruits and vegetables) is a : : complex biological structure, it seems to me that it may be quite : : difficult to evaluate using ultrasound. Is anybody familiar with : : work performed for the evaluation of the quality of agricultural : : products? What is the conclusion? : : Liviu Singher : It's certainly not a major application, but it can be done. We recently supplied equipment to a customer who is evaluating the freshness of watermelons by looking at longitudinal wave transit time in a low frequency (100 KHz) through transmission mode. : I am also aware of similar testing involving potatoes, and I suspect that with sufficient "calibration" research the principle could be applied to many fruits and vegetables that get softer and/or change water content as they ripen. Bon appetite! : --Tom Nelligan : Panametrics, Inc.

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