Optical
comparator is a non contact inspection instrument that applies
the principle of optics to magnify and project the image of an
inspected part. Optical inspection instruments allow the inspection
of a part while the part is actually moving and being machined
on the machine tool. Light source emits light beam that travels
through prism and projects the shadow of an object onto a screen
a few feet away so it can be compared with a chart showing tolerance
levels for the part.
Optical
comparators screen sizes
Various optical comparators screen sizes are available to Dorsey's
customers, from 12" to 80". When selecting optical comparator
screen size, it is important to determine how much of the part
must be viewed at one time.
Optical
comparators digital readouts
Dorsey's optical comparators with digital readouts eliminate operator
subjectivity and increase repeadability and accuracy. When using
optical comparators with readout system it is not necessary to
view the entire part to measure it.
Features
of Special Optical Comparators:
- Screen
sizes from 12" to 80"
- Stage
travel upto 30" x 16" x 12"
- Weight
capacity up to 1500 lbs
- High
quality coated telecentric, parfocal lenses
- Precision
lapped glass screen
- Motorized
work stage
