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Pyranometer circuit diagram.
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f2-sensors-09-04615: Pyranometer circuit diagram.

Mentions: Each of the systems and elements with which the pyranometer is equipped will be described below. They are shown as a block diagram in Figure 1 and as a circuit diagram in Figure 2.

A New and Inexpensive Pyranometer for the Visible Spectral Range

Martínez MA, Andújar JM, Enrique JM - Sensors (Basel) (2009)

Bottom Line: This paper presents the design, construction and testing of a new photodiode-based pyranometer for the visible spectral range (approx. 400 to 750 nm), whose principal characteristics are: accuracy, ease of connection, immunity to noise, remote programming and operation, interior temperature regulation, cosine error minimisation and all this at a very low cost, tens of times lower than that of commercial thermopile-based devices.This new photodiode-based pyranometer overcomes traditional problems in this type of device and offers similar characteristics to those of thermopile-based pyranometers and, therefore, can be used in any installation where reliable measurement of solar irradiance is necessary, especially in those where cost is a deciding factor in the choice of a meter.This new pyranometer has been registered in the Spanish Patent and Trademark Office under the number P200703162.

Affiliation: DIESIA, Escuela Politécnica Superior de la Universidad de Huelva, Ctra. Palos de la Ftra.-Huelva s/n, 21819, Palos de la Ftra. Huelva, Spain; E-Mails: andujar@uhu.es (J.M.A.); juanm.enrique@diesia.uhu.es (J.M.E).

ABSTRACT
This paper presents the design, construction and testing of a new photodiode-based pyranometer for the visible spectral range (approx. 400 to 750 nm), whose principal characteristics are: accuracy, ease of connection, immunity to noise, remote programming and operation, interior temperature regulation, cosine error minimisation and all this at a very low cost, tens of times lower than that of commercial thermopile-based devices. This new photodiode-based pyranometer overcomes traditional problems in this type of device and offers similar characteristics to those of thermopile-based pyranometers and, therefore, can be used in any installation where reliable measurement of solar irradiance is necessary, especially in those where cost is a deciding factor in the choice of a meter. This new pyranometer has been registered in the Spanish Patent and Trademark Office under the number P200703162.

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