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Project:OD600 Measurement: Difference between revisions

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== OD600 device ==
== OD600 device ==


The idea is to make a cheap, robust, reliable alternative to a dedicated and expensive device. The initial brain storming is to take a 600 nm source, (or a broad wavelength source of light which includes 600 nm and use a BP filter) and a level detector, and calibrate it to match 0.4 at OD600 on a proper spectrophotometer..
The idea is to make a cheap, robust, reliable alternative to a dedicated and expensive device. The initial brain storming is to take a 600 nm source, (or a broad wavelength source of light which includes 600 nm and use a BP filter) and a level detector, and calibrate it to match 0.4 at OD600 on a proper spectrophotometer.
 
=== v0.1 ===


[[File:OD600-proto-1.png|450px]]
[[File:OD600-proto-1.png|450px]]
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It really needs some amplification and a lot more light shielding.
It really needs some amplification and a lot more light shielding.
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=== v0.2 ===


the second idea (once the 605nm LEDs had turned up from ebay);
the second idea (once the 605nm LEDs had turned up from ebay);