On Wed, 25 Aug 2010, J.F. wrote:
> A to mnie zainteresowales - jak to robiliscie ?

Cos podobnego do urzadzen opisanych w pracach:

G. Allen Holloway Jr. and Dennis W.Watkins
LASER DOPPLER MEASUREMENT OF CUTANEOUS BLOOD FLOW
http://www.nature.com/jid/journal/v69/n3/abs/5616676
a.html

Nilsson, Gert E.; Tenland, Torsten; Oberg, P. Ake;
LASER DOPPLER MEASUREMENT OF CUTANEOUS BLOOD FLOW
http://www.nature.com/jid/journal/v69/n3/abs/5616676
a.html

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The system utilizes the Doppler shift of laser light backscattered
from moving red blood cells in the cutaneous microcirculation,
the shift being obtained by an optical heterodyning technique.
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Pomiary maja charakter bardziej jakosciowy niz ilosciowy.

Pzdr.J.P.