A Remote Temperature and Dewpoint Indicating and Recording Device

摘要

The paper describes an instrument designed primarily for use at airports to provide accurate and continuous indications and records of dry bulb and dew-point temperatures of the air. Using suitable thermistors and a dewcel as the temperature and dewpoint sensors respectively, the instrument is capable of indicating and recording the air and dewpoint temperatures, with an accuracy better than #xb1;0#xb7;5#xb0;C. for air temperature and #xb1; 1#xb0;C. for dewpoint. The transmission of information is over cables and the instrument can easily be adopted for a wide variety of other applications.