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Activities/Turtle Art/Using Turtle Art Sensors (view source)
Revision as of 22:03, 3 December 2010
, 22:03, 3 December 2010→Light dependant resistor (LDR)
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)