CONVECTIVE AIR TEMPERATURE AND HUMIDITY SENSOR

摘要

The sensor has an outer member (10) formed with an upwardly directed hole (12) having an open upper end (14). An inner member in the form of a tube (16) is provided having a lower portion (18) positioned in the hole (12) and an upper portion (19) which projects above the outer member (10). Solar radiation applied to the upper portion (19) of the tube (16) creates a chimney effect which causes air to flow upwardly inside the tube (16) and downwardly from the open upper end (14) through a space (22) between the inner and outer members (10, 16). Sensing devices (24, 26) for sensing temperature and humidity are arranged within the outer member (10) and in the air flow path.