Path: csiph.com!eternal-september.org!feeder.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: jimp@specsol.spam.sux.com Newsgroups: sci.physics Subject: Re: a project involving photosensors Date: Thu, 11 Aug 2016 00:17:33 -0000 Organization: A noiseless patient Spider Lines: 31 Sender: Jim Pennino Message-ID: References: <6686fe2b-f9f0-4da9-81a2-aeb5ee6b29f0@googlegroups.com> <57abaf80$0$28840$c3e8da3$88b277c5@news.astraweb.com> Injection-Info: mx02.eternal-september.org; posting-host="db4120ef82bbc153014637d4cd15a795"; logging-data="30462"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18Q+yXr87cVj65t/6MCVEOB" User-Agent: tin/2.2.1-20140504 ("Tober an Righ") (UNIX) (SunOS/5.10 (i86pc)) Cancel-Lock: sha1:aNhswSCmLjHbd8s1YJIkLTZMY0Y= Xref: csiph.com sci.physics:592713 benj wrote: > On 8/10/2016 6:32 PM, nuny@bid.nes wrote: >> On Tuesday, August 9, 2016 at 2:07:03 AM UTC-7, ewu...@gmail.com wrote: >>> Hello, >>> I have a project involving photosensors/photo-receptors which requires >>> experimentation. >>> Can anyone help please. >> >> Sure, but the help you get depends on the information you provide on your problem. >> >> What color(s) of light do you need to detect? How bright is it? How long does the light last; is it a brief pulse, several pulses, constant, or what? Is there background light of the same or other color that must be filtered or otherwise accounted for? >> >> What sort of output do you need; current or voltage proportional to the intensity? Do you need time resolution? How accurate must it be? >> >> Do you have any experience building circuits? >> >> And the most important question- >> >> What's your budget? >> >> >> Mark L. Fergerson >> > Heh! All problems can be solved if you have enough money. Hey, if you > got the cash just hire me. My stuff always works. Why would you want cash when according to you it is worthless? -- Jim Pennino