filar micrometer

filar micrometer
filar micrometer n an instrument for accurately measuring small distances or angles that usu. consists of two parallel fine platinum wires mounted in the focal plane of a microscope or telescope with one wire being fixed and the other movable by means of a finely threaded screw

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an eyepiece micrometer in which the micrometer screw acts upon a slide carrying a movable wire: one revolution of the screw moves the wire 1 mm across the field.

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  • Filar micrometer — Micrometer Mi*crom e*ter, n. [Micro + meter: cf. F. microm[ e]tre.] An instrument, used with a telescope or microscope, for measuring minute distances, or the apparent diameters of objects which subtend minute angles. The measurement given… …   The Collaborative International Dictionary of English

  • Filar micrometer — A filar micrometer is a device used in astronomical telescopes for precision measurements. The word filar derives from Latin filum , a thread. It refers to the fine threads or wires used in the device. Construction and useThe filar micrometer… …   Wikipedia

  • filar micrometer — Bifilar Bi*fi lar, a. [Pref. bi + filar.] Two threaded; involving the use of two threads; as, bifilar suspension; a bifilar balance. [1913 Webster] {Bifilar micrometer} (often called {a bifilar}), an instrument form measuring minute distances or… …   The Collaborative International Dictionary of English

  • filar micrometer — siūlinis mikrometras statusas T sritis Standartizacija ir metrologija apibrėžtis Mikrometras, kuriame yra rėmelis su matavimo siūlais. Naudojamas mažiems atstumams matuoti teleskopo židinio plokštumoje. atitikmenys: angl. crossbar micrometer;… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • filar micrometer — siūlinis mikrometras statusas T sritis fizika atitikmenys: angl. crossbar micrometer; filar micrometer vok. Fadenmikrometer, n; Kreuzfadenmikrometer, n rus. нитяной микрометр, m pranc. micromètre à fils, m; micromètre à réticule, m; micromètre… …   Fizikos terminų žodynas

  • filar micrometer — noun : an instrument for accurately measuring small distances or angles usually consisting of two parallel fine platinum wires mounted in the focal plane of a microscope or telescope, one wire being fixed and the other movable by means of a… …   Useful english dictionary

  • Micrometer — Mi*crom e*ter, n. [Micro + meter: cf. F. microm[ e]tre.] An instrument, used with a telescope or microscope, for measuring minute distances, or the apparent diameters of objects which subtend minute angles. The measurement given directly is that… …   The Collaborative International Dictionary of English

  • Micrometer caliper — Micrometer Mi*crom e*ter, n. [Micro + meter: cf. F. microm[ e]tre.] An instrument, used with a telescope or microscope, for measuring minute distances, or the apparent diameters of objects which subtend minute angles. The measurement given… …   The Collaborative International Dictionary of English

  • Micrometer gauge — Micrometer Mi*crom e*ter, n. [Micro + meter: cf. F. microm[ e]tre.] An instrument, used with a telescope or microscope, for measuring minute distances, or the apparent diameters of objects which subtend minute angles. The measurement given… …   The Collaborative International Dictionary of English

  • Micrometer head — Micrometer Mi*crom e*ter, n. [Micro + meter: cf. F. microm[ e]tre.] An instrument, used with a telescope or microscope, for measuring minute distances, or the apparent diameters of objects which subtend minute angles. The measurement given… …   The Collaborative International Dictionary of English

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