| 释义 |
tensiometer|tɛnsɪˈɒmɪtə(r)|
[f. tension n. + -ometer.]
1. a. An instrument for measuring the surface tension of a liquid. b. One for measuring the tension of soil water.
1922Jrnl. Exper. Med. XXXV. 576 The tensiometer was used with an accurately calibrated platinum-iridium ring..and is reliable to {pm}0·1 dyne. 1936Richards & 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. 1973McGraw-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]. 1975Yong & 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.
1947Textile 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. 1952Electronic Engin. XXIV. 531 The most common instrument for measuring yarn tension is the pocket-size dial tensiometer. 1978A. 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.
Hence tensioˈmetric a., tensiˈometry.
1965New 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. 1968McGraw-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. 1979Acta Protozoologica XVIII. 64 Two radial measurements by tensiometry. |