detector to distinguish white and green surface - Electronic Circuits Projects Diagrams Free

prakratiagrawal · 22nd August 2007, 01:40 PM

hello friends
i need your ideas to make a detector using TSOP 1738 to distinguish between white and green surface .plzz send me the circuit diagram if u can

**Nigel Goodwin** · 22nd August 2007, 01:42 PM

It's a 38KHz IR remote control receiver, it's probably not suitable for this purpose?.

ronsimpson · 22nd August 2007, 04:16 PM

http://www.edmundoptics.com
They have glass color filters. I would get a filter that only passes green and put in front of a simple photo transistor. It is possible to make a filter that passes everything but green and put in front of a second photo transistor.

Two photo detectors and a green pass filter and you can tell the difference between green and white paper.

The light sensor TCS230 has a red filter, green filter and blue filter and 4 light sensors. With it I can not only tell white from green but I can tell what batch the green paint came from.

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22nd August 2007, 01:40 PM	(permalink)
prakratiagrawal	detector to distinguish white and green surface hello friends i need your ideas to make a detector using TSOP 1738 to distinguish between white and green surface .plzz send me the circuit diagram if u can

22nd August 2007, 01:42 PM	(permalink)
Nigel Goodwin	It's a 38KHz IR remote control receiver, it's probably not suitable for this purpose?. __________________ PIC programmer software, and PIC Tutorials at: http://www.winpicprog.co.uk

22nd August 2007, 04:16 PM	(permalink)
ronsimpson	http://www.edmundoptics.com They have glass color filters. I would get a filter that only passes green and put in front of a simple photo transistor. It is possible to make a filter that passes everything but green and put in front of a second photo transistor. Two photo detectors and a green pass filter and you can tell the difference between green and white paper. The light sensor TCS230 has a red filter, green filter and blue filter and 4 light sensors. With it I can not only tell white from green but I can tell what batch the green paint came from.