- Jan 1, 1970
After reading your post I read up on this a little bit. It sure
sounds to me like the best bet mentioned so far. It is
contactless, and doesn't require the wire to fill the field of
view. Emissivity is less of a problem with the dual wavelength
setup than with single wavelength techniques. And I don't see why
reflections can't be eliminated as a problem with proper shading
of the measurement area.
Maybe use an identical static wire, fixed at the required
temperature, and servo for zero difference between the
static and moving wires.