Accession Number:

AD0760810

Title:

Instruction Manual for Expendable Dew Point Hygrometer.

Descriptive Note:

Final rept. Dec 69-Jan 71,

Corporate Author:

EG AND G INTERNATIONAL INC WALTHAM MASS ENVIRONMENTAL EQUIPMENT DIV

Personal Author(s):

Report Date:

1971-01-01

Pagination or Media Count:

55.0

Abstract:

The Expendable Dew Point Hygrometer is a lightweight, battery powered, automatic dew point hygrometer developed for tropospheric balloon soundings. It is designed to be used in conjunction with a radiosonde in gathering meteorological data. The measurement of dew point temperature is accomplished by a thermistor mounted in a dew point sensor which senses temperature as a resistance and provides a signal to the radiosonde. The radiosonde is a balloon-borne, battery powered, meteorological instrument that automatically transmits radio signals relating to the atmosphere pressure, air temperature and dew point temperature of the upper air to ground receiving equipment. Author

Descriptors:

• (*HYGROMETERS
• INSTRUCTION MANUALS)
• (*ATMOSPHERIC SOUNDING
• DEW POINT)
• TROPOSPHERE
• METEOROLOGICAL BALLOONS
• RADIOSONDES
• ATMOSPHERIC TEMPERATURE
• BAROMETRIC PRESSURE
• THERMISTORS
• DETECTORS
• TRANSMITTER RECEIVERS
• AUTOMATIC

Subject Categories:

• Meteorology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE