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Pyranometer Sensor: Apogee Instruments Inc.
... Pole. In the Southern Hemisphere, point cable toward the South Pole. CLICK FOR LARGER IMAGE AND SCHEMATIC DRAWING SPECTRAL RESPONSE A thermopile pyranometer measures all of the energy between ... solar radiation. They should not be used to measure electric lights, under canopies of vegetation or to measure reflected radiation. CLICK ON IMAGE AT RIGHT FOR LARGER VIEW TEMPERATURE RESPONSE Increasing ...
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Quantum Sensor: Apogee Instruments Inc.
... North Pole. In the Southern Hemisphere, point cable toward the South Pole. CLICK FOR LARGER IMAGE AND SCHEMATIC DRAWING SENSOR RESPONSE An ideal quantum sensor would give equal emphasis to all ... be calculated. This meter is calibrated for either sunlight or electric lamps. The errors under other light sources are shown below: ELECTRIC LAMP CALIBRATION LAMP TYPE ERROR Cool White Fluorescent ±2% Metal ...
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Ultra Violet Meter: Apogee Instruments Inc.
... UV radiation. CLICK ON IMAGE AT RIGHT FOR LARGER VIEW APOGEE UV SENSOR TESTS Although the relative wavelengths of UV radiation differ among sunlight and electric lights, our measurements indicate ... from electric lamps. This meter is particularly useful for determining the UV filtering capacity of the transparent plastic and glass barriers that are commonly used below electric lamps. CLICK ON IMAGE ...
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Apogee Instruments Inc: Frequently Asked Questions
... the blue line is the Human Eye Response typically measured in Footcandles. Click on image for larger view. FOOTCANDLE METER ERROR IN MEASURING PHOTOSYNTHETIC RADIATION Cool White Fluorescent Lamps ... which is accurately measured with our Apogee Nanologger. The daily PPF from instantaneous measurements under electric lights can be calculated by multiplying by the number of seconds in the photoperiod. ...
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