The characteristics of the air-contact temperature sensor, point-measurement and dry-bulb temperature sensing, enable this type's sensor to measure only a spot air temperature of a 3 dimensional space where it is installed, and cannot measure the radiative heat transfer between the occupants and surroundings, just like a globe thermometer does. The globe thermometer is designed to measure sensible heat transfer of a human body, but it also suffers from the same restriction of the location as the air-contact temperature sensor, so it has not been adopted by air-conditioning automatic control. The characteristics of the radiant temperature sensor, remote surface temperature sensing and zonal measurement, enable this type's sensor to do different measuring from the air-contact temperature sensor and globe thermometer. Therefore, it attracted attention as a new type of sensor for HVAC automatic control, and may replace the traditional sensors.
展开▼
