An External Goniometer for Orientation of a Cryostat

Authors

N.C. Lockhart, University of Nebraska - Lincoln
L.F. Nichols, University of Nebraska - Lincoln
Craig J. Eckhardt, University of Nebraska - LincolnFollow

Date of this Version

February 1973

Comments

Published by the American Institute of Physics. Rev. Sci Instrum.Volume 44, Issue 2, pp. 149-151 (1973). ©1973 American Institute of Physics. Permission to use.

Abstract

An economical two-circle orienting external goniometer has been designed and fabricated for an Andonian liquid helium Dewar. The Dewar can be tilted ±30° from the vertical in two perpendicular directions. The geometrical center of the Dewar's optical cavity moves a maximum of 1 mm when the cryostat is tilted the full 30°. The basic design involves the rotation of two concentric cylinders riding on bearing surfaces. Two chain belts and gear boxes are used as drive mechanisms.