DAVIDSON OPTRONICS Model D-327 Plano Interferometer

PLANO INTERFEROMETER -- D-327

The Plano Interferometer D-327 is an optical instrument for measuring flatness of polished surfaces where 2X magnification is advantageous. Non-technical personnel can make accurate measurements on reflective surfaces.

With this instrument there is no physical contact between the master reference and the surface to be measured, thus eliminating the use of costly optical flats that must be replaced when worn.
Features:

No vibration table required in most cases

2X magnification over 2½" working aperture

Measures flatness to 0.000 001"

Eliminate costly optical flats

Operation simplicity cut set-up time

No physical contact between master reference and selected surface

Certification of accuracy traceable to National Institute of Standards and Technology

For more theory of operation, please refer to the Principles of Interferometry Application Note.

Detailed Specifications:

Working Aperture		2½"
Accuracy		1/10 Fringe (1/20 Wave)
Light Source		Helium Neon Laser at 6328Å (One Fringe = 0.000 012 4") or Yellow Laser at 5941Å (One Fringe = 0.000 011 7")
Power Requirements		115V and 60Hz
Material	Base	Cast Iron
	Housing, Column and Work Table	Cast Aluminum
	Master Reference Flat	Fused quartz
Work Table		7" x 7"
Adjustment Range		5"
Overall Dimensions	Height	23½"
	Base	14" x 12"
Finish		Ivory Enamel
Weight		85 pounds
Shipping Weight		120 pounds

Optional Accessories:

P/N 104-0150-327 Fringe Analysis System eliminates any human error in evaluation of your parts
P/N 105-2761-327 Video Camera & Monitor with integral camera power supply. With this option readings become very easy even for unskilled personnel. Repeat readings are more accurate and faster. The camera eliminates any errors from parallax and greatly reduces eye fatigue. This option is easily added to existing Model D-271's.
P/N 105-2703 1" Retro-Reflecting Corner Cube

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