HEIDENHAIN Length Gauges - Manual (Page 5)

5
Multipoint inspection
apparatuses
Multipoint inspection apparatuses require
durable length gauges with small dimen-
sions. They should also have relatively large
measuring ranges of several millimeters
with consistent linear accuracy in order to
simplify the construction of inspection
devices—for example by enabling the con-
struction of one device for several masters.
A large measuring length also provides
benefits in master production, because
simpler masters can be used.
Thanks to their small dimensions, the
HEIDENHAIN-ACANTO absolute length
gauges, like the HEIDENHAIN-SPECTO
incremental length gauges, are specially
designed for multi-point measuring
stations. They feature accuracy grades up
to ± 1 µm over measuring ranges up to
30 mm. Higher accuracy requirements
up to ± 0.2 µm can be met with similarly
compact HEIDENHAIN-METRO length
gauges.
Unlike inductive gauges, HEIDENHAIN-
SPECTO length gauges provide stable
measurement over long periods—
eliminating recalibration.
Position measurement
Length gauges from HEIDENHAIN are also
ideal for position measurement on preci-
sion linear slides and X-Y tables. Working
with measuring microscopes, for example,
becomes much easier thanks to the digital
readout and the flexible datum setting.
Here, length gauges from the HEIDEN-
HAIN-METRO and HEIDENHAIN-SPECTO
program come into use with large meas-
uring ranges of 30 mm, 60 mm or 100 mm
at consistently high accuracy grades of
± 0.5 µm or ± 1 µm.
In this application as linear measuring
device, the length gauge’s fast installation
in accordance with the Abbe measuring
principle by its clamping shank or planar
mounting surface is of special benefit.
Testing station for
flatness inspection
Position measurement on an X-Y table for lens mounting
In production
Tolerance gauging of
semifinished products