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单词 resistivity
释义

resistivityn.

Brit. /ˌriːzᵻˈstɪvᵻti/, /ˌrɛzᵻˈstɪvᵻti/, /rᵻˌzɪsˈtɪvᵻti/, U.S. /rəˌzɪsˈtɪvᵻdi/, /riˌzɪsˈtɪvᵻdi/, /ˌrɛzᵻˈstɪvᵻdi/, /ˌrizᵻˈstɪvᵻdi/
Origin: Formed within English, by derivation. Etymons: resistive adj., -ity suffix.
Etymology: < resistive adj. + -ity suffix. Compare French résistivité (1896; after English).
Physics. The specific (electrical or thermal) resistance of a substance; spec. the resistance of a conductor of unit length and unit cross-sectional area.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > electricity > resistance > [noun]
resistance1746
R1842
water resistance1859
resistivity1885
skin effect1890
high-frequency resistance1892
leak1896
negative resistance1896
photoresistance1925
piezoresistance1954
piezoresistivity1958
the world > matter > physics > electromagnetic radiation > electricity > resistance > [noun] > specific resistance
resistivity1885
skin resistance1891
specific resistance1899
skin resistance1900
specific resistivity1958
the world > matter > physics > electromagnetic radiation > electricity > electrically induced magnetism > electromagnetic induction > [noun] > resistance to conduction
resistivity1885
reluctance1888
reluctancy1888
resistance1888
reluctivity1892
1885 O. Heaviside in Electrician 4 Sept. 311/1 ‘Specific resistance’ may well be called ‘resistivity’.
1902 Encycl. Brit. XXVIII. 5/1 We may express the resistivity [of a metal] by stating the resistance in ohms offered by a wire of the material in uniform cross-section, one metre in length, and one gramme in weight.
1906 J. W. Richards Metall. Calculations I. viii. 177 The thermal resistivity is the reciprocal of the thermal conductivity.
1943 C. L. Boltz Basic Radio i. 26 Anyone capable of working out a formula can therefore find the resistance of any conductor by looking up the tables for specific resistance or resistivity.
1962 Newnes Conc. Encycl. Electr. Engin. 658/1 Copper of the highest purity has a resistivity lower than that of any other known material except silver.
1991 Power Sept. 49/1 The thermal model still is required to..calculate thermal resistivity of the ground.
2005 R. E. Newnham Properties of Materials xxii. 243 Piezoresistivity, the change in electrical resistivity with mechanical stress, is commonly used to monitor static or slowly varying stresses and strains.

Compounds

C1. General attributive.
resistivity measurement n.
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1910 Circular Bur. Standards No. 26. 60 These constants will be used in reducing the results of resistivity measurements from one temperature to another.
2003 M. Grantham in J. B. Newman & B. S. Choo Adv. Concrete Technol.: Testing & Quality 6/46 The resistivity measurement is a useful additional measurement to aid in..confirming concerns about poor-quality concrete.
resistivity meter n.
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1928 Carnegie Inst. Washington Year Bk. 27 213 A comparison of the McCullum earth-current meter with the Gish–Rooney earth-resistivity meter was made.]
1931 Proc. Amer. Petroleum Inst. 12 iv. 51/2 The resistivity meter developed by Mr. Shepard is not intended as a precision instrument, but the error in salt solutions over a wide range of resistivity does not exceed 5 per cent.
2002 K. Greene Archaeol. (ed. 4) ii. 70/2 Prehistoric ditches were located in 1946 by using a resistivity meter.
C2.
resistivity profile n. the way the resistivity of a medium varies along a line or in a particular direction; a graphical representation of this.
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1929 Q. Colorado School Mines 24 111 (caption) Resistivity profiles above the Rhine Fault near Lobsann (Alsace).
1972 Jrnl. Electrochem. Soc. 119 1773/1 The radial resistivity profile along a diameter of a [semiconductor] wafer.
2002 P. Kearey et al. Introd. Geophysical Explor. (ed. 3) viii. 196/2 (caption) Resistivity profiles across a buried ditch.
resistivity survey n. a survey of the electrical resistivity of the ground at different points over an area or along a route, typically based on measurements of the current passing between electrodes embedded in the ground at successive pairs of points and used to locate buried structural features; a similar survey of the internal structure of a solid object.
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the world > the earth > earth sciences > geography > map-making > surveying > [noun] > types of survey
trigonometrical survey1801
geological survey1818
traverse survey1860
cadastral survey1861
coast-lining1902
resistivity survey1924
resistivity surveying1932
1924 Bull. National Res. Council Jan. 106 It is planned to make a resistivity survey of the entire region.
1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) XI. 22/2 Electromagnetic and electrical resistivity surveys are used to locate deposits of metallic sulfides.
1991 New Civil Engineer 5 Sept. 58/2 (advt.) An entrepreneurial engineer with a love of..resistivity surveys of reinforced concrete.
2007 Brit. Archaeol. Sept.–Oct. 8/2 A resistivity survey is planned to clarify the Restormel fort's internal layout.
resistivity surveying n. the practice or action of making resistivity surveys.
ΘΚΠ
the world > the earth > earth sciences > geography > map-making > surveying > [noun] > types of survey
trigonometrical survey1801
geological survey1818
traverse survey1860
cadastral survey1861
coast-lining1902
resistivity survey1924
resistivity surveying1932
1931 Engin. & Min. Jrnl. 131 325 (heading) Earth resistivity surveying.]
1932 Mining & Metall. 13 16/1 A new system of resistivity surveying has been developed which combines the features of four-electrode (constant depth) surveying with the features of single-probe (increasing depth) surveying.
1953 R. J. C. Atkinson Field Archaeol. (ed. 2) i. 38 Resistivity surveying requires at least two operators, one at the instrument and one to move the electrodes.
2002 K. Greene Archaeol. (ed. 4) ii. 70/1 Resistivity surveying measures the resistance of subsoil to the passage of an electrical current.
This entry has been updated (OED Third Edition, March 2010; most recently modified version published online June 2022).
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n.1885
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