No no

Thats what i've been looking for "Spectro-fotometer" (sorry for my mistake)

I've googled the key and found your resume. I've been knowing that you are
active member on PIClist i've tried my chance..

The project will be evolve from analog to mcu based mind and data
acquisition for reporting. First of all i've to grasp the inner philosophy
of this device then i will keep up going step-by-step.

By the way is there a general reference guide for such devices (datasheets,
app notes, user manuals, leader vendor applications)???

Thank you very much for your time and precious thoughts

G=F6khan SEVER



On 6/22/06, Vasile Surducan <piclist9@gmail.com> wrote:
>
> Useless information. You said spectrometer and I read spectrofotometer...
> :(
>
> On 6/22/06, Vasile Surducan <piclist9@gmail.com> wrote:
> > Building the electronics of a simple spectrofotometer it's easy if you
> > have the optics. First you have to define clearfully the optical range
> > (visible, UV, infrared)
> > and the sensitivity. Then you have to decide if will be with one or two
> spots.
> > One spot will make easy your life but will increase errors regarding
> > the probe alignement during calibration/measuring sequence.
> >  One important aspect is choosing the optic style (difraction plate,
> > prism, etc) and the dimension of cuvettes for the probes (which
> > determine the spot dimension also).
> >  One easy sollution is to buy the difraction chamber and the
> > photodiodes assembly (there are up to 1024 diodes, capturing the whole
> > visible spectrum once)
> > or to build your own detector and amplifier (which is quite easy for
> > lightwave between near infrared ~900nm to blue 400...430nm) and make
> > yourself the wavelenght monocromator assembly. The problem here is the
> > alignement of wavelenght, you must have a good reference source for
> > this job, or at least a set of interferential filters with very low
> > bandwith (which is difficult because filters below 5...10nm bandwith
> > are hard to found)
> >  I've modified in my life about 10 or maybe 20 proffesional optical
> > spectrum analyzers made with Karl Zeiss optics in the old time between
> > '65 to '75.
> > You can't see anymore such jewels.
> >  The microcontroller side is just the end of the job, because if you
> > don't have an excellent analogic design, the rest could be unusefull.
> >
> > success,
> > Vasile
> >
> >
> >
> > On 6/22/06, G=F6khan SEVER <gstr2005@gmail.com> wrote:
> > > Hi,
> > >
> > > In this summer break we are plannig to develop a spectrometer in our
> > > university. Although i've some emdedded design knowledge and
> experience i
> > > havent produce any biomedical devices previously. From now on i want
> to
> > > determine a solid thesis subject on biomedical area.
> > >
> > > Probably some of the PIClist members had been developed similar
> devices
> > > before and should be many members that are knowledgable on biomedical
> design
> > > field. So, Could you please guide me some on this diverse variety
> field to
> > > find my way?
> > > --
> > > http://www.piclist.com PIC/SX FAQ & list archive
> > > View/change your membership options at
> > > http://mailman.mit.edu/mailman/listinfo/piclist
> > >
> >
>
> --
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> http://mailman.mit.edu/mailman/listinfo/piclist
>
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