Handheld, portable instrument measures
a range of surface damage.
The optical micrometer will measure and evaluate the width
or depth of scratches, cracks, pits, corrosion, dents and other
blemishes in a variety of materials. In addition, it can be used
to quantify the height of spurs and other small protrusions.
For transparent materials, this instrument is useful for measuring
thickness, depth of crazing, depth of fractures, and width of
embedded voids.
Simple design provides accurate results.
An easy-to read Vernier Scale is standard on all optical depth
micrometers and is calibrated in thousandths, ten thousandths
and hundred thousandths. To take a reading, the operator rotates
the micrometer thimble until the primary surface of the area comes
into sharp focus. Subsequent readings at varying depths of focus
are made in the same fashion. Depending on model, the optical
micrometer is accurate to ±0.0002”.
Adapts to convex, concave and compound contours.
With a rugged housing, this instrument is ideal for field
applications. Using one of the interchangeable bases,
practically any surface could be measured - windshields,
airframes, fuselage skin, propeller blades, rotor blades,
turbine blades, plus many more.
*Shown: Optical Micrometer Kit (Model 966A1) –
Includes 5x and 10x interchangeable optics, 20x
eyepiece cell, reticle eyepiece cell; five additional
bases, micrometer light, adjustable light
bracket and case.
Optical Micrometer
Surface Measuremen
Available in Two Models:
Model 966 (100 power)
Recommended for applications requiring greater working depth.
Depth readings to 0.665” can be made with this instrument.
Transparent materials up to 0.9975” thick can be measured with
±0.0005” accuracy.
Model 966A (200 power)
The standard instrument used for primary flat and simple curved
surfaces. Depth (below the surface) readings to 0.260” can be
made within ±0.0002” accuracy. Will also measure transparent
material thicknesses up to 0.390”.
Model 966A1
Contains equipment for both models above.
Accessories:
Tripod Base (model 970) – Intended for flat, simple and compound
curved surfaces (supplied with instrument)
Quadpod Base (model 971) – Enables measurements
on convex and/or concave irregular curved surfaces
Offset Tripod Base (model 972) – Permits readings
of flat or curved surfaces adjacent to protruding obstructions
Wedge Bipod Base (model 973) – Used when intersection of planed
surfaces form angles of at least 80°
Translucent V-Block Base (model 974) – Obtains readings
from round surfaces or external angles, also flat surfaces
adjacent to recessed areas
Large Tripod Base (model 975) – Used for applications requiring
a larger support area than the tripod base, ideal for small parts
inspection
Reticle Eyepiece Cell (model 966AR) – By inserting the reticle
eyepiece cell, the micrometer becomes an optical comparator
capable of making accurate width measurements up to 0.040”
to an accuracy of 0.001” (for use with Model 966A)
10x Interchangeable Optic (model 966AC) – converts model
966 to model 966A
5x Interchangeable Optic (model 966C) – converts model
966A to model 966
Specifications
Model 966 Model 966A
Magnification 100x 200x
Optics Working Distance 0.6650” 0.2600”
(depth measurement)
Micrometer Working Distance 1.000” 1.000”
Material Thickness (transparent) 0.9975” 0.3900”
Accuracy ±0.0005” ±0.0002”
Image Area 0.090” dia. 0.060” dia.
Image Focal Plane ±0.0002” ±0.0001”
