D-623  CALIBRATION WEDGES

• Fixed standard checks autocollimator calibration
• Dependable permanent stability - no moving parts
• Designed to deviate azimuth or elevation angle
• Certification of accuracy traceable to NIST

Just two steps are necessary after your mirror and autocollimator are established along an axis parallel to the work surface:

1.Interpose the D-623 Calibration Wedge between the mirror and the instrument in the line     of sight.

2.Observe the angular deviation indicated by the autocollimator - which should be identical to the calibrated angle of the wedge.

The Model D-623 wedge is a fixed standard and therefore permanently stable.  Because Model D-623 has no moving parts, accuracy is constant.  The Model D-623 may be interposed in the line of sight to perform its angular deviation function for both azimuth and elevation.  Since it is a fixed angle wedge, angles must be specified by the buyer at the time of order.  Nominal deviations available include: 5", 10", 15", 20", 30" and 60".  Actual measured deviation is noted on the housing.

                                                          Support Documentation

 D-623 Data Sheet

 D-623 Drawing