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Optics
Fibroptonic
Ref : 202 012
ENGLISH
2.3 Note:
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The accuracy of the concentration is 5%.
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We also obtain good results with copper sulphate II solutions.
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If we rotate the tank around a vertical axis, the optical thickness as well as the
absorption increases (Lambert's cosine law).
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If we use a laser, the distance between the laser and the photoresistor must be
sufficient so that it illuminates a significant part of the photoresistor.
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Be careful of ambient light interference.
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