A filar micrometer is a device used in astronomical telescopes for astrometry measurements. The word filar derives {ety|la|filum|a thread}. It refers to the fine threads or wires used in the device. == Construction and use == The filar micrometer consists of a micrometer and a reticle that has two fine parallel wires or threads that can be moved b...
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http://en.wikipedia.org/wiki/Filar_micrometer
(from the article `asteroid`) The first measurements of the sizes of individual asteroids were made in the last years of the 19th century. A filar micrometer, an instrument ...
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http://www.britannica.com/eb/a-z/f/24
An ocular micrometer with a line moved by a ruled drum such that a movement of the line of 5 um or less may be made in relation to fixed parallel lines. ... (05 Mar 2000) ...
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http://www.encyclo.co.uk/local/20973
Type: Term Definitions: 1. an ocular micrometer with a line moved by a ruled drum such that a movement of the line of 5 mcm or less may be made in relation to fixed parallel lines.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=55221
No exact match found.
