©2004 TESA Switzerland All Rights Reserved.
Page 5-20
User's Manual
MH3D
Glossary
Secondary Datum The datum established by at least two points of contact
between a datum feature and the inspection surface.
Second Named Axis The second letter in the name of the working plane.
Select To choose from a list displayed on the computer screen.
Separate Origin An alignment routine that requires three features and
locates the origin at the third feature. The minor axis is
perpendicular to the major axis.
Settling Time The time required between contact of a hard probe with
a measurement point and the time at which valid data
may be taken.
Setup A softkey function used to access the setup screen.
Setup Hysteresis The hysteresis of various elements in a test setup,
normally due to loose mechanical connections.
Setup Parameters Values such as position velocity, contact velocity,
acceleration, retract distance, and prehit distance that are
programmed into the system.
Significant Mean The change in mean ambient temperature surrounding a
Temperature Change CMM that, in the manufacturer’s judgment, will cause
sufficient degradation in machine performance to require
the performance evaluation to be repeated.
Single Tip A qualification procedure for a single tipped probe.
Slot A measurement routine that computes a slot length and
center distance from the origin.
Software The intelligence of a system. Stored in chips or on
diskettes, it contains the mathematical and geometric
capability to perform inspection routines and to commu-
nicate with the operator.
Sphere A three dimensional space in which all points on its
surface are equidistant from the centerpoint. A measure-
ment routine that computes a diameter and the center
distance from the origin of a spherical shape. A sphere is
defined by at least four points.
Spherical Expressing a point in space by its (r, phi, rho) in relation
Coordinates to some fixed origin.
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