Did you use some algorithm to convert your reading into photon count? Or did you use a ratio measurement of transmitted to detected and calculate the percentage? ----- Original Message ----- From: "Robert A LaBudde" To: "Microcontroller discussion list - Public." Sent: Friday, June 23, 2006 10:55 PM Subject: Re: [EE] Project Spectrofotometre > At 10:18 PM 6/23/2006, you wrote: >>What did you use as a detector? > > A 300 nm to 1100 nm 4 mm x 6 mm photodiode in photovoltaic mode. > > I bought the photodiodes surplus. > > ================================================================ > Robert A. LaBudde, PhD, PAS, Dpl. ACAFS e-mail: ral@lcfltd.com > Least Cost Formulations, Ltd. URL: http://lcfltd.com/ > 824 Timberlake Drive Tel: 757-467-0954 > Virginia Beach, VA 23464-3239 Fax: 757-467-2947 > > "Vere scire est per causas scire" > ================================================================ > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist