F: Fabrication Flat Tuning

fabrication

1. A general term for parts manufacture, especially structural or mechanical parts. 2. The assembly of components into a completed structure.

Fabry Perot

A pair of highly reflective mirrors, whose separation can be adjusted to select light of particular wavelengths. When used as a laser resonator, this type of cavity can narrow the range of wavelengths emitted by the laser.

face

1. An exposed structural surface. 2. In a weldment, the exposed surface of the fusion zone.

faceplate

1. A circular plate that is attached to the spindle of a lathe. The plane of the plate is perpendicular to the spindle axis. Faceplates are used to attach and align certain types of workpieces. 2. A protective cover for holes in an equipment enclosure. 3. A glass or plastic window in personal protective gear such as welding helmets, respirator masks, or diving masks. 4. A two-dimensional array of separate optical fibers that are fused together on order to strongly direct light forward.

facet

The plane surface of a crystal or fracture surface.

face-to-face dimension

The dimension from the face of the inlet opening to the face of the outlet opening of a valve. [ANSI/ISA-75.05.01 2000]

facing

1. The act of machining a flat, planar surface in a lathe turning by positioning a single-point tool against the workpiece at the axis of rotation. The tool is then moved radially outward so that it cuts a spiral path in a plane that is perpendicular to the axis of rotation. 2. Fine...