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MODIFICATION OF OLDER NEUTRON PROBES TO ENABLE EXTERNAL DATA PROCESSING AND CONTROL

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Transactions of the ASAE.  VOL. 43(6): 1477-1481 . (doi: 10.13031/2013.3046) @2000
Authors:   G. O. Brown, D. Needham, M. L. Stone
Keywords:   Neutron probe, Filter circuits

Troxler Models 3223 and 3333 depth-moisture neutron probes were modified to allow external control and data recording. Complete procedures are presented including a materials list, step-by-step instructions, and a circuit design. The procedure taken is low cost, effective, easy to complete, and greatly increases the functionality of older neutron probes. This modification provides a good option for researchers wishing to upgrade existing instruments or in some cases, return an out-of-order meter to service.

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