Definition of filar micrometer. Meaning of filar micrometer. Synonyms of filar micrometer

Here you will find one or more explanations in English for the word filar micrometer. Also in the bottom left of the page several parts of wikipedia pages related to the word filar micrometer and, of course, filar micrometer synonyms and on the right images related to the word filar micrometer.

Definition of filar micrometer

filar micrometer
Bifilar Bi*fi"lar, a. [Pref. bi- + filar.] Two-threaded; involving the use of two threads; as, bifilar suspension; a bifilar balance. Bifilar micrometer (often called a bifilar), an instrument form measuring minute distances or angles by means of two very minute threads (usually spider lines), one of which, at least, is movable; -- more commonly called a filar micrometer.

Meaning of filar micrometer from wikipedia

- A filar micrometer is a specialized eyepiece used in astronomical telescopes for astrometry measurements, in microscopes for specimen measurements, and...
- Filar micrometer Vernier scale Encyclopedia Americana (1988) "Micrometer" Encyclopedia Americana 19: 500 ISBN 0-7172-0119-8 "What is a Micrometer &...
- conception of measurement by double image without the auxiliary aid of a filar micrometer, that is by changing the distance between two object-gl****es of equal...
- was the measurement of the relative positions of binary pairs with a filar micrometer. All known doubles were periodically re-measured to determine their...
- Telescopes that are used for very precise measurements would have a filar micrometer as a reticle; this could be adjusted by the operator to measure angular...
- precise determination of the orbit of the Moon. Instruments such as a filar micrometer could be attached to the telescope. Another telescope, a 3-inch (76 mm)...
- been obtained by the end of the 19th century, mostly by use of the filar micrometer. Astrographs using astronomical photographic plates sped the process...
- been obtained by the end of the 19th century, mostly by use of the filar micrometer. Astrographs using astronomical photographic plates sped the process...
- refractors were often used for observing double stars and equipped with a Filar micrometer. Pioneering work on astrophotography was done with great refractors...
- Some of the instruments for the 40-inch refractor (circa 1890s) were: Filar Micrometer Solar spectrograph Spectroheliograph Stellar spectrograph Photoheliograph...