autocollimatorn.

Brit.

/ˌɔːtə(ʊ)ˈkɒlᵻmeɪtə/, U.S.

/ˌɔdoʊˈkɑləˌmeɪdər/,

/ˌɔdəˈkɑləˌmeɪdər/,

/ˌɑdoʊˈkɑləˌmeɪdər/,

/ˌɑdəˈkɑləˌmeɪdər/

Origin: Formed within English, by compounding. Etymons: auto- comb. form¹, collimator n.

Etymology: < auto- comb. form¹ + collimator n., after autocollimation n.

An instrument that uses the principle of autocollimation, e.g. to measure parallelism or alignment.

ΘΚΠ

the world > physical sensation > sight and vision > optical instruments > instrument for distant vision > [noun] > telescope > other telescopes

polemoscope1668

finder1738

night-glass1758

collimator1825

floating collimator1833

lookdown1865

guiding telescope1897

autocollimator1903

kinetheodolite1941

finderscope1946

satellite telescope1951

scotoscope1964

starlight scope1964

1903 Proc. Royal Soc. 72 193 The observing telescope, with its auto-collimator and attached hydrogen Geissler tube, is exactly as used for the dilatometer.

1946 Symp. Materials Gas Turbines (Amer. Soc. testing Materials) 184/2 The rotation of a lozenge is measured by a Tuckerman autocollimator.

1992 A. H. Slocum Precision Machine Design iv. 158 Both manual and electronic autocollimators are available, although the latter are most widely used.

2007 S.-G. Guan et al. in J. M. Nester et al. Gravitation & Astrophysics 5 An autocollimator (angular detective sensitivity of 0.05 μrad) was used to determine whether the torsion pendulum is in position relative to the source mass.

This entry has been updated (OED Third Edition, June 2011; most recently modified version published online December 2021).

单词	autocollimator
释义	autocollimatorn. Brit. /ˌɔːtə(ʊ)ˈkɒlᵻmeɪtə/, U.S. /ˌɔdoʊˈkɑləˌmeɪdər/, /ˌɔdəˈkɑləˌmeɪdər/, /ˌɑdoʊˈkɑləˌmeɪdər/, /ˌɑdəˈkɑləˌmeɪdər/ Origin: Formed within English, by compounding. Etymons: auto- comb. form¹, collimator n. Etymology: < auto- comb. form¹ + collimator n., after autocollimation n. An instrument that uses the principle of autocollimation, e.g. to measure parallelism or alignment. ΘΚΠ the world > physical sensation > sight and vision > optical instruments > instrument for distant vision > [noun] > telescope > other telescopes polemoscope1668 finder1738 night-glass1758 collimator1825 floating collimator1833 lookdown1865 guiding telescope1897 autocollimator1903 kinetheodolite1941 finderscope1946 satellite telescope1951 scotoscope1964 starlight scope1964 1903 Proc. Royal Soc. 72 193 The observing telescope, with its auto-collimator and attached hydrogen Geissler tube, is exactly as used for the dilatometer. 1946 Symp. Materials Gas Turbines (Amer. Soc. testing Materials) 184/2 The rotation of a lozenge is measured by a Tuckerman autocollimator. 1992 A. H. Slocum Precision Machine Design iv. 158 Both manual and electronic autocollimators are available, although the latter are most widely used. 2007 S.-G. Guan et al. in J. M. Nester et al. Gravitation & Astrophysics 5 An autocollimator (angular detective sensitivity of 0.05 μrad) was used to determine whether the torsion pendulum is in position relative to the source mass. This entry has been updated (OED Third Edition, June 2011; most recently modified version published online December 2021). < n.1903
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