Actinometer | Wikipedia audio article
Channel: wikipedia tts
Date: 04/10/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Actinometer


00:00:55 1 History
00:01:25 2 Chemical actinometry
00:01:50 2.1 Choosing an actinometer
00:03:38 2.2 Chemical actinometry in the visible range



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SUMMARY
=======
Actinometers are instruments used to measure the heating power of radiation. They are used in meteorology to measure solar radiation as pyranometers, pyrheliometers and net radiometers.
An actinometer is a chemical system or physical device which determines the number of
photons in a beam integrally or per unit time. This name is commonly
applied to devices used in the ultraviolet and visible wavelength ranges.
For example, solutions of iron(III) oxalate can be used as a chemical
actinometer, while bolometers, thermopiles, and photodiodes are physical
devices giving a reading that can be correlated to the number of photons
detected.