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ASTM E941-83(1999)
Standard Test Method for Calibration of Reference Pyranometers With Axis Tilted by the Shading Method (Withdrawn 2005)
Automatische name übersetzung:
Standard Test Method for Kalibrierung von Referenz Pyranometer mit der Achse durch die Shading -Methode Geneigte (Withdrawn 2005)
NORM herausgegeben am 10.6.1999
Informationen über die Norm:
Bezeichnung normen: ASTM E941-83(1999)
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 10.6.1999
SKU: NS-48542
Zahl der Seiten: 9
Gewicht ca.: 27 g (0.06 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Die Annotation des Normtextes ASTM E941-83(1999) :
Keywords:
Calibration-nuclear analysis instrumentation, reference pyranometers with axis tilted (by shading method), test,, Irradiance/irradiation-solar, Pyranometer method, Pyrheliometers, Radiation exposure-solar collectors/analysis, Shading method, Solar collectors, Solar spectral irradiance, calibration of reference pyranometers with axis tilted (by shading, method), test, ICS Number Code 27.160 (Solar energy engineering)
Ergänzende Informationen
| 1. Scope |
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1.1 This test method covers all pyranometers having calibrations sensitive to tilt. 1.2 This test method combines measurement and calculation, yielding calibration factors derived from many measurements and identified with either a single tilt angle or at normal incidence with one or only a few specific angles of tilt. 1.3 This test method is applicable to reference pyranometers regardless of the radiation receptor employed. 1.4 Two types of calibrations are covered: Type I employs a self-calibrating pyrheliometer, and Type II calibrations employ a secondary reference pyrheliometer as the standard instrument. 1.5 This test method provides for calibration at fixed south facing tilts from the horizontal with instrument constant data obtained at various angles of incidence throughout the day at that tilt. 1.6 Calibration of reference pyranometers may be performed by a method in which the axis of the sensitive element is aligned with the sun during the shading disk test. This procedure avoids the effect of cosine errors, but emphasizes the importance of tilt corrections. 1.7 The calibration of reference pyranometers at horizontal, that is, with axis vertical, is covered in another ASTM standard (see Section 2). 1.8 This test method is applicable only to calibration procedures using light from the sun. |
