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This article in SSSAJ

  1. Vol. 53 No. 1, p. 299-302
    Received: Feb 22, 1988

    * Corresponding author(s):
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Automated Regulating and Recording System for Cylinder Infiltrometers

  1. S. Matula and
  2. C. Dirksen 
  1. Czech Technical Univ. (CTU), Faculty of Civil Engineering, Thakurova 7, 166 29 Prague 6, Czechoslovakia
    Wageningen Agricultural Univ. (WAU), Dep. of Soil Science and Plant Nutrition, Dreijenplein 10, 6703 HB Wageningen, The Netherlands



This paper describes a new system that regulates water applications to ring infiltrometers within ± 1 mL. Water application is triggered when free water on the soil surface reaches a preset lowest level, with a sensitivity of about 0.1 mm. By recording the times of the water application events, either automatically or manually, the maximum infiltration rate as function of time can be determined with high accuracy and minimum effort.

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