Filar micrometer

Also found in: Medical, Encyclopedia, Wikipedia.
See under Bifilar.

See also: Micrometer

References in periodicals archive ?
Although many of their measurements were of the already well-studied Galilean satellites, they also hoped to lay the wires of their filar micrometer on little Amalthea, the fifth satellite of Jupiter, which had been discovered visually by E.
It is here described and illustrated; it was treated in the usual way for mounting on a slide in Canada Balsam; the usual measurements, stated in ([micro]m, were taken with an AO filar micrometer (measuring units 1.
The biggest problem was that an adaptor plate for the filar micrometer was missing and Brian had to get another one made.