microbubble detector in moving blood - Electronic Circuits Projects Diagrams Free

bytriz · 9th February 2008, 08:07 AM

hi!

i am now working on to build microbubble detector (in moving blood) using infrared. i plan to use Ir emitter of 850nm. however i'm kinda confused on how to match it with any other phototransistor/photo detector. and plus, i'm kinda confused of both usage. are both phototran/photo detector are all same? for now, i am kinda need help on choosing which is the best detector for that particular Ir emitter. i am really in need of help.

tq.

Hero999 · 9th February 2008, 12:39 PM

850nm is a pretty common wavelength for IR diodes and transistors which can be purchased in matched pairs.

Also, this sounds like a fairly invasive piece of equipment and would need proper approval before it can be legally used.

bytriz · 9th February 2008, 12:53 PM

'fairly invasive piece'?
would you mind elaborate more?
thanks.

Hero999 · 9th February 2008, 01:35 PM

Well pesumably it involves extracting blood from someone which is pretty invasive.

KMoffett · 9th February 2008, 01:41 PM

Out of curiosity...is this a hobby, academic, research, or clinical project?

Ken

vimalg · 9th February 2008, 02:14 PM

need this project

bytriz · 9th February 2008, 03:24 PM

oh ya~about that, i'm still thinking not using the real blood. maybe just using some liquid that having same or nearly same density as blood. However, it is still in discussion with my supervisor.

btw, this is an academic reasearch. erm..is it wrong to ask here if with that intention(academic research).

blueroomelectronics · 9th February 2008, 03:31 PM

I don't know why I have this link in my bookmarks, guess I was interested at one time.
http://www.analog.com/library/analog..._oximeter.html

KMoffett · 9th February 2008, 04:50 PM

bytriz,

I think your inquiry is very appropriate here. "Clinical" would get into a little risky area, but even clinical projects start as research. The questions here range from the very simple...to...those that are way too complex...but we almost always learn something from them.

I'm a former Biomedical Engineering Tech so you goal is intriguing. Is the bubble detector "the" project, or is this a "buy? vs build?" part for a larger project? The blood bubble detectors I'm familiar with are ultrasonic.

Ken

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9th February 2008, 08:07 AM	(permalink (permalink))
bytriz	microbubble detector in moving blood hi! i am now working on to build microbubble detector (in moving blood) using infrared. i plan to use Ir emitter of 850nm. however i'm kinda confused on how to match it with any other phototransistor/photo detector. and plus, i'm kinda confused of both usage. are both phototran/photo detector are all same? for now, i am kinda need help on choosing which is the best detector for that particular Ir emitter. i am really in need of help. tq.

9th February 2008, 12:39 PM	(permalink (permalink))
Hero999	850nm is a pretty common wavelength for IR diodes and transistors which can be purchased in matched pairs. Also, this sounds like a fairly invasive piece of equipment and would need proper approval before it can be legally used. __________________ I also post at the following sites: http://www.stop-microsoft.org http://www.heated-debates.com Screen name: Aloone_Jonez

9th February 2008, 12:53 PM	(permalink (permalink))
bytriz	'fairly invasive piece'? would you mind elaborate more? thanks.

9th February 2008, 01:35 PM	(permalink (permalink))
Hero999	Well pesumably it involves extracting blood from someone which is pretty invasive. __________________ I also post at the following sites: http://www.stop-microsoft.org http://www.heated-debates.com Screen name: Aloone_Jonez

9th February 2008, 01:41 PM	(permalink (permalink))
KMoffett	Out of curiosity...is this a hobby, academic, research, or clinical project? Ken __________________ "To invent, you need a good imagination and a pile of junk." Thomas A. Edison (1847 - 1931)

9th February 2008, 02:14 PM	(permalink (permalink))
vimalg	need this project

9th February 2008, 03:24 PM	(permalink (permalink))
bytriz	oh ya~about that, i'm still thinking not using the real blood. maybe just using some liquid that having same or nearly same density as blood. However, it is still in discussion with my supervisor. btw, this is an academic reasearch. erm..is it wrong to ask here if with that intention(academic research).

9th February 2008, 03:31 PM	(permalink (permalink))
blueroomelectronics	I don't know why I have this link in my bookmarks, guess I was interested at one time. http://www.analog.com/library/analog..._oximeter.html __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com

9th February 2008, 04:50 PM	(permalink (permalink))
KMoffett	bytriz, I think your inquiry is very appropriate here. "Clinical" would get into a little risky area, but even clinical projects start as research. The questions here range from the very simple...to...those that are way too complex...but we almost always learn something from them. I'm a former Biomedical Engineering Tech so you goal is intriguing. Is the bubble detector "the" project, or is this a "buy? vs build?" part for a larger project? The blood bubble detectors I'm familiar with are ultrasonic. Ken __________________ "To invent, you need a good imagination and a pile of junk." Thomas A. Edison (1847 - 1931)