Optics: measuring and testing – Photometers – Photoelectric
Patent
1985-04-30
1987-07-07
LaRoche, Eugene R.
Optics: measuring and testing
Photometers
Photoelectric
356218, 356432, G01J 142
Patent
active
046783300
ABSTRACT:
An apparatus and method for measuring solar radiation received in a vegetative canopy. A multiplicity of sensors selectively generates electrical signals in response to impinging photosynthetically active radiation in sunlight. Each sensor is attached to a plant within the canopy and is electrically connected to a separate port in a junction box having a multiplicity of ports. Each port is connected to an operational amplifier. Each amplifier amplifies the signals generated by the sensors. Each amplifier is connected to an analog-to-digital convertor which digitizes each signal. A computer is connected to the convertors and accumulates and stores solar radiation data. A data output device such as a printer is connected to the computer and displays the data.
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Barron Michael H.
Gutschick Vincent P.
Waechter David A.
Wolf Michael A.
Hightower Judson R.
Huffman Lee W.
LaRoche Eugene R.
Pascal Robert J.
The United States of America as represented by the United States
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