pyrheliometer การใช้

• The 3000 pyrheliometer measurements of solar irradiance made at Brukkaros nonetheless proved useful.
• He developed a pyrheliometer and made, between 1837 and 1838, the first quantitative measurements of the solar constant.
• They are also used widely in heat flux sensors ( such as the Moll thermopile and Eppley pyrheliometer ) and gas burner safety controls.
• Using a very simple pyrheliometer he developed, he obtained a value of 1.228 kW / m? close to the current estimate.
• He focussed his research investigating the radiation of heat from the sun, terrestrial nocturnal emission and its absorption by the Earth's atmosphere, and to that end devised various delicate methods and instruments, including his electric compensation pyrheliometer, invented in 1893, apparatus for obtaining a photographic representation of the infra-red spectrum ( 1895 ) and pyrgeometer ( abt . 1905 ).