A Manually Operated Dew- or Frost-Point Hygrometer System Using CO2 Coolant.
Abstract
A simple, inexpensive, manually operated dew- or frost-point hygrometer has been designed, fabricated and installed in a system that functions at atmospheric pressure and vacuum. It is intended primarily for the detection of water vapor pressure in a confined space at vacuum, as encountered in free-flight aerophysics ranges. Illustrations, with dimensions of the hygrometer's component parts, are presented. Calibration and operation procedures are described and the results of the test are reported. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1971
- Accession Number
- AD0729774
Entities
People
- James R. Patchell
Organizations
- Ballistic Research Laboratory