Tensiometer (soil science)

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Not to be confused with Extensometer, Tension meter, or Tensometer.
For the article with regards to surface tension, see Tensiometer (surface tension).
Electronic tensiometer probe: (1) porous cup; (2) water-filled tube; (3) sensor-head; (4) pressure sensor

A tensiometer in soil science is a measuring instrument used to determine the matric water potential (\Psi_m) (soil moisture tension) in the vadose zone.


  • Rawls, W.J., Ahuja, L.R., Brakensiek, D.L., and Shirmohammadi, A. 1993. Infiltration and soil water movement, in Maidment, D.R., Ed., Handbook of hydrology, New York, NY, USA, McGraw-Hill, p. 5.1–5.51.

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