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Gordon Couger writes to the sowacs list: ===8<============== Congratulations Jason, you have entered the arena of difficult problems. You have a difficult time even defining moisture of shredded fruit. As it dries it shrinks making the usual methods of measuring the water in a given volume that most instruments depend on impossible until the fruit stops shrinking. Then you have to assure or assume even packing to use any non destructive I can think of. The only way I know that will work for sure is oven drying. You can speed it with a microwave oven but you need to carefully test your methods against standard oven drying to make sure you aren't burning the fruit. If the relative humidity of a block of plaster with fruit around it will work for you there are many ways to measure that. Good Luck Gordon Please update your address book to gcc@couger.com or gordon.couger@cox.net Gordon Couger Stillwater, OK www.couger.com/gcouger ----- Original Message ----- From: "Bruce -owner of sowacs" <bruce@sowacs.com> To: "Bruce Metelerkamp" <bruce@sowacs.com> Sent: Friday, November 14, 2003 3:19 AM Subject: Fwd: Soil Moisture Meters suitable for use in dried fruit? : : Jason D. Emiliusen writes to the sowacs list: : ===8<============== : : I am involved in a design project where we are drying fruits(like : apples) and we need to know the moisture content of the shredded fruit : throughtout the drying process. I was wondering if a soil moisture : meter would work for this application or if anyone knew of something : that would work. : Thanks. : : [Bruce comments : I will be interested to hear of other users' replies to this, as it : may well be possible that some of the simpler ready-to-use sensors could : be put to this use. : However, there are two more suitable products listed on my new website under the categories : Moisture Content : hay : Moisture Content : grain/seed : : Environmental Sensors Inc. (ESI) supplies the GroáPointT which is : designed for just this function. : : Measure Instruments: : MI-7 - Moisture analyser with interchangeable sensors and programmable. : SH-7 - Moisture, temperature and weight sensor for grains, powders, granules and triturated product. : SH-6 - Moisture sensor for bales of hay cubes, silopack, soils, cotton cubes and grains. : SH-5 - Moisture sensor for hay row, woods, paper, cheeses, granules and powders. : SH-3 - Moisture and temperature sensor for soils and grounds. : ST-2 - Temperature sensor for soils, liquids, hay cubes and grains. : : Admittedly these are unusual requirements (from a soil point of view:), : and there are not many suppliers yet listed on these pages... : : Bruce] : : ===8<============== : NOTE: To get off this list, send an email to list@sowacs.com : with the subject line: : unsubscribe_sowacs : : For full instructions see this page: : <http://www.sowacs.com/subscribe/index.html> ===8<============== NOTE: To get off this list, send an email to list@sowacs.com with the subject line: unsubscribe_sowacs For full instructions see this page: <http://www.sowacs.com/subscribe/index.html>