Evaluation of vibration generated by closed-cycle refrigeration system using optical methods

Alexander A. Vaysman; Alexey V. Turukhin; Anshel A. Gorokhovsky

doi:10.1117/12.323732

17 September 1998 Evaluation of vibration generated by closed-cycle refrigeration system using optical methods

Alexander A. Vaysman; Alexey V. Turukhin; Anshel A. Gorokhovsky;

Author Affiliations +

Proceedings Volume 3435, Cryogenic Optical Systems and Instruments VIII; (1998) https://doi.org/10.1117/12.323732
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

A simple optical method for studying vibration has been developed and applied to the investigation of a commercial closed cycle refrigeration (CCR) system. This method utilizes an amplitude modulation of a laser beam by the knife-edge attached to the cold finger of the CCR system. The sensitivity of the proposed optical technique is determined by the diameter of the focused laser beam and a displacement of 1 micrometers is readily detectable. For the system CRYO Model 396-022 based on CTI CRYODYNE Model 22 refrigerator, experimental studies were conducted for different cold finger temperatures, cold head orientations, and mechanical holders. The total amplitude of the displacement was on the order of 50 micrometers for a cold head fixed into rigid mechanical holder placed on the optical table and 30 micrometers for the same holder placed on a special stand decoupled from the optical table. Three main frequency components at 3 Hz, 60 Hz, and 120 Hz have been observed.

Citation Download Citation

Alexander A. Vaysman, Alexey V. Turukhin, Anshel A. Gorokhovsky, "Evaluation of vibration generated by closed-cycle refrigeration system using optical methods", Proc. SPIE 3435, Cryogenic Optical Systems and Instruments VIII, (17 September 1998); doi: 10.1117/12.323732; https://doi.org/10.1117/12.323732

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $14.40

Non-members: $18.00 ADD TO CART

Show All Keywords

Keywords/Phrases

Search In:

Publication Years