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Soil Science Society of America Journal Abstract -

Temperature Effects in a Tensiometer-Pressure Transducer System1


This article in SSSAJ

  1. Vol. 31 No. 2, p. 156-160
    Received: Sept 26, 1966
    Accepted: Dec 14, 1966

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  1. K. K. Watson and
  2. R. D. Jackson2



A tensiometer-pressure transducer system using nylon hydraulic leads was found to be sensitive to small temperature fluctuations. A suitable model to describe the effect was developed, and the appropriate differential equation was solved in terms of the pressure variation occurring in the system for a sinusoidal pattern of temperature change. Experiments are described in which the measuring system is subjected to a sinusoidal temperature variation and the induced pressure changes recorded. From such records the amplitude and phase shift of the pressure are determined and compared with those obtained from the model solution.

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