reference mark


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reference mark

[′ref·rəns ‚märk]
(electronics)
One of the marks used in a design of a printed circuit, giving scale dimensions and indicating the edges of the circuit board.

reference mark

A supplementary mark of permanent character close to a survey station, to
References in periodicals archive ?
After the triangulation, we get the position of the robot, in the relative reference mark to the activated cell.
* Availability with multiple IN-TRAC[TM] optical reference marks regularly spaced, with a single reference mark, either at the center of the scale or close to the end of the scale, or with dual optical limits for easy end-of-travel indication.
I explained to the fleet replacement pilot how to use the system to place a reference mark at defined coordinates.
Lay the timber on the gravel; check it for level and for spacing down from the reference mark. It'll take you several attempts to get it right.
Exceptions only apply to countries that temporarily overshoot the 3%-of-GDP reference mark. Greece has only until 2006 to get its inflated deficit down to the 3% limit.
* A reference mark at the midpoint on each encoder.
The point of visible laser light will be level with a reference mark on the body of the level.
The DK12 is designed to provide reliable reference mark detection in a compact and rugged metal housing.
Compare the tip to a fixed reference mark. If it describes a circle the inserts are not aligned properly.
The tip of the broadhead must remain perfectly in line with the reference mark as the arrow turns.