tensiometern.
/tɛnsɪˈɒmɪtə/ 1.
a. An instrument for measuring the surface tension of a liquid.
ΘΚΠ
the world > matter > liquid > [noun] > surface-tension > instrument to measure surface tension
tensiometer1922
tensometer1941
1922 Jrnl. Exper. Med. 35 576 The tensiometer was used with an accurately calibrated platinum-iridium ring..and is reliable to ±0·1 dyne.
b. One for measuring the tension of soil water.
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1936 Richards & Gardner in Jrnl. Amer. Soc. Agronomy XXVIII. 352 Rogers.., lacking a more suitable name, has called the combination a soil moisture meter. In the interest of brevity and unambiguity, the name tensiometer is here used.
1973 McGraw-Hill Yearbk. Sci. & Technol. 382/1 Tensiometers placed in the active root zone and near the bottom of the root zone..provide information that permits control of deep percolation [in irrigated soil].
1975 Yong & Warkentin Soil Properties & Behaviour iv. 129 Tensiometers are widely used to indicate when irrigation is required.
2. An instrument for measuring the tension in yarn, a rope, etc.
ΘΚΠ
the world > matter > physics > mechanics > force > [noun] > tension > instrument for measuring
tensiometer1947
tensometer1953
the world > matter > constitution of matter > hardness > types of hardness > [noun] > tautness > degree of or tension > instrument for measuring
tensiometer1947
1947 Textile Research Jrnl. Jan. 27/1 The thread then passes to a tensiometer,..which instrument feeds voltage proportional to the thread tension into a..chart recorder.
1952 Electronic Engin. 24 531 The most common instrument for measuring yarn tension is the pocket-size dial tensiometer.
1978 A. Welch Bk. of Airsports vi. 98/2 The tensiometer is important, so that the canopy will never be overloaded by the car being driven too fast in strong winds.
Derivatives
tensioˈmetric adj.
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1968 McGraw-Hill Yearbk. Sci. & Technol. 351/1 A tensiometric method utilizes a porous cup filled with water connected by a tube to a vacuum indicator. This approach measures the capillary potential or suction of soil water.
tensiˈometry n.
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1965 New Scientist 18 Nov. 497/1 The rocks are simulated by microscopic glass balls and polymers... They claim that these models enable reliable forecasts of what will happen to the springs if this or that method of mining is adopted. Tensiometry..and ultrasound measurements play an important role in this work.
1979 Acta Protozoologica XVIII. 64 Two radial measurements by tensiometry.
This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2021).
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n.1922