Performance of Temperature/Dew Point Instruments.
Abstract
A series of field trials was conducted to assess the performance of temperature/dew point systems used at the US Army Dugway Proving ground, UT. Data quality was degraded by noise, calibration drift, and exposure to adverse ambient conditions. Improved noise reduction procedures, particularly improved computer program noise filters, are needed. Calibration drift can be detected by comparison with a standard in the field or by deployment of instruments in pairs at one level. Exposure to adverse ambient conditions can be avoided by proper test planning and execution. Operated under favorable ambient conditions, dew cell hygrometers provide useful average dew points where great accuracy is not required. Optical condensation hygrometers responded faster and more accurately than the dew cell hygrometers. However, the temperature sensing system in the optical condensation hygrometers was inaccurate and unreliable. The thermistor temperature sensing system performed well during this test, but the data were severely damped. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1982
- Accession Number
- ADA114977
Entities
People
- Christopher Biltoft