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Microhygrometer for Planetary Meteorology

High-frequency quartz oscillator and thermoelectric cooler used in the JPL-developed SAW hygrometer for fast, accurate measurements of humidity in Earth's atmosphere. The quartz oscillator acts as a highly-sensitive condensation detector as the thermoelectric device cools the SAW surface to the dewpoint temperature. The SAW hygrometer has been flown in various Earth Science experiments, including an experimental balloon-borne reference radiosonde, and the NASA DC8 airborne laboratory. Flights on the DC8 were undertaken as part of a NASA-sponsored multiagency mission to study convection and moisture in Atlantic Hurricanes during the 1998 season (CAMEX3).

For Additional Information:

http://csmt.jpl.nasa.gov/