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Automatic optical activity measurement system

โœ Scribed by R.M Ribeiro; A.B.A Fiasca; P.A.M dos Santos

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
179 KB
Volume
30
Category
Article
ISSN
0030-3992

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Automatic soil-frost measuring system
Automatic soil-frost measuring system
โœ M.D. Burgess; C.L. Hanson ๐Ÿ“‚ Article ๐Ÿ“… 1979 ๐Ÿ› Elsevier Science โš– 295 KB

Recent advances in integrated circuit technology made it possible to develop the lowcost, battery-operated, recording, soil-frost measurement system described in this paper. This system utilizes the abrupt conductivity changes within gypsum soil-moisture blocks to indicate if soil is frozen or thawe