Activities/Turtle Art/Using Turtle Art Sensors: Difference between revisions

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Tonyforster (talk | contribs)
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The ORP12 is a 'classic' cadmium sulphide photocell. Tests were done on a LDR that is 'similar to Philips ORP12'
The ORP12 is a 'classic' cadmium sulphide photocell. Tests were done on a LDR that is 'similar to Philips ORP12'


[[File:ldr.jpg]]  [[File:XOandPcell.jpg]]
[[File:ldr.jpg]]   


http://www.jaycar.com.au/productView.asp?ID=RD3480
http://www.jaycar.com.au/productView.asp?ID=RD3480
[[File:XOandPcell.jpg]]


For this cell, the calibration was Lux = 3 * 10^8 * (R^ -1.5034)
For this cell, the calibration was Lux = 3 * 10^8 * (R^ -1.5034)