| 释义 |
water-flow pyrheliometer water-flow pyrheliometer[′wȯd·ər ¦flō ¦pir‚hē·lē′äm·əd·ər] (engineering) An absolute pyrheliometer, in which the radiation-sensing element is a blackened, water calorimeter; it consists of a cylinder, blackened on the interior, and surrounded by a special chamber through which water flows at a constant rate; the temperatures of the incoming and outgoing water, which are monitored continuously by thermometers, are used to compute the intensity of the radiation. |