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Das neue Absolut-Pyrheliometer von Prof. K. Wegener
Geofisica pura e applicata, 1951Der neuartige pyrheliometrische Messvorgang nach Prof.K. Wegener wird analysiert. Bei ihm sind gewisse Fehlerquellen anderer Strahlungsmesser vermieden. Jedoch bestehen Bedenken, ob das neue Verfahren die kalorische Sonnenenergie inabsolutem Masse liefern kann.
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A system for automatic operation of the Ångström pyrheliometer
Archiv für Meteorologie, Geophysik und Bioklimatologie Serie B, 1963A servo-operated system to provide automatic control of heater current in the Angstrom electrical compensation pyrheliometer is described. An improved method of measuring the heater current, together with specifications for the control unit, are also presented.
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Test Method for Calibration of Pyrheliometers by Comparison to Reference Pyrheliometers
2023openaire +1 more source
The Ångström compensation pyrheliometer and the absolute pyrheliometric scale
Geofisica pura e applicata, 1958In a preliminary study the mean marginal error due to the edgeeffect of the old standard pyrheliometer ofK. Angstrom is found to be +2.4 per cent. A series of the new model A pyrheliometer designed at the Laboratory of the Swedish Meteorological and Hydrological Institute has given the same result concerning the discrepancy between the new model and ...
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On the compensation pyrheliometer
Archiv für Meteorologie, Geophysik und Bioklimatologie Serie B, 1963openaire +1 more source
Method for calibrating field pyrheliometers by comparison to a reference pyrheliometer
2015openaire +1 more source
Method for calibrating field pyrheliometers by comparison to a reference pyrheliometer
2013openaire +1 more source
Test Method for Calibration of Pyrheliometers by Comparison to Reference Pyrheliometers
2015openaire +1 more source