DAVIDSON OPTRONICS Model D-660 Two Axis Autocollimator

TWO AXIS AUTOCOLLIMATOR -- D-660

The Model D-660 Two Axis Autocollimator is capable of repeating angular measurements to ą0.1 arc second.

Features:

Separate readout dial for each axis

Standard 2.249" diameter barrel

Certification of accuracy traceable to National Institute of Standards and Technology

The Model D-660 Two Axis Autocollimator's two micrometer readout dials are independent of each other and have their own eyepieces for reading the scales. The standard 2.24" diameter barrel makes interchanging this instrument with other mounts or using V-blocks easy. With the Model D-165 High Intensity Light Source, fiber Light Guide and Adaptor the Model D-660 can be used for measuring uncoated parts.
Applications:
The Model D-660 Two Axis Autocollimator measures angles around an X-Y axis or intermediate points between obliquely tilted surfaces.
Autocollimator functions:
The basic function of an autocollimator is to detect and measure a deviation in the position of a reference reflective surface. The autocollimator projects a collimated beam of light onto a reflective surface. When a deviation in the position of that reflective surface occurs, a deviated beam of collimated light returns to the autocollimator. A direct angular reading autocollimator, such as the Model D-660 Two Axis Autocollimator, will provide a direct angular measurement of the reflective surface deviation through acquisition and measurement of the deviated return beam angle.
For more theory of operation, please refer to the Principles of Autocollimation Application Note.

Detailed Specifications:

Sensitivity		0.1 arc second
Accuracy		˝ arc second over one arc minute, ą2 arc seconds over 10 arc minutes (Calibration curve over full range available at nominal cost)
Repeatability		ą0.1 arc seconds or better (standard deviation)
Axes		Two
Measuring range		10 arc minutes (ą5 arc seconds)
Arc seconds scale		0.1 arc second graduations Numbered each arc second One revolution equals one arc minute (60 arc seconds)
Magnification		38X
Effective Focal Length		43"
Reticles		Filar / Bifilar Bright Field, Dark Line Projected Reticle
Light Source		GE #328 lamp (2 spares included)
115V Power Supply		Part Number 105-2805, (included) variable from 0 though 6 volts DC
Material	Housing	Aluminum
	Barrel	Steel
Overall Dimensions	Height	4.15"
	Width	4.15"
	Length	18ž"
	Barrel Diameter	2.249 66 ą0.000 25" Optical Axis Concentric ą0.000 3" at 16"
	Aperture	1.8"
	Height to Aperture Center	1.32"
Finish	Housing	Ivory Enamel
	Barrel	Hard Chrome plate
Carrying Case		Finished Hardwood, Ethafoam fitted for instrument and light source
Instrument Weight		10 pounds
Shipping Weight		24 pounds

Optional Accessories:

Model D-165 High Intensity Light Source. This option may be required when autocollimating off of low reflectivity surfaces or small mirrors.
Model D-247 Table Instrument Stand
Model D-254 Adjustable Instrument Stand
Model D-276 Adjustable Instrument Stand
Model D-277 Adjustable Instrument Stand
Model D-295 Adjustable Instrument Stand

Davidson Optronics, Inc.
Phone: (626) 962-5181
Fax: (626) 962-5188
E-mail: sales@davidsonoptronics.com