Intelligent Chilled Mirror Humidity Sensor
Abstract
A new, intelligent, chilled mirror humidity instrument has been designed for use on buoys and ships. The design goal is to make high quality dew point temperature measurements for a period of up to one year from an unattended platform, while consuming as little power as possible. Nominal system accuracy is 0.3 C, and a measure of data quality is provided to indicate possible drift in calibration. Energy consumption is typically 800 Joules per measurement; standby power consumption is 0.05 watts. Control of the instrument is managed by an onboard central processing unit which is programmable in BASIC, and communication to an external data logger is provided through an RS232 compatible interface. This report describes the preliminary sensor tests that led to this new design and provides the complete technical description required for fabrication. Keywords: Humidity sensors; Air water interactions; Latent heat flux; Marine atmospheres; Meteorological measurements; Meteorological instruments; Meteorological data; Marine boundary layer.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1988
- Accession Number
- ADA205135
Entities
People
- Clifford L. Winget
- David S. Hosom
- Donald P. Doucet
- James F. Price
- Sumner Weisman
Organizations
- Woods Hole Oceanographic Institution