VARIABLE PATH LENGTH LIGHT TRANSMISSION PROBE

摘要

2112105 9306458 PCTABS00021 A probe for use in situ analysis of light absorbing fluids wherein light emitted from a source is collimated by a lens (16) and transmitted through a fluid onto and substantially perpendicular to a reflector (28). Light is reflected by the reflector (28) back through the fluid and focused by the lens (28) onto a reflected light collector for transmission (146) to analyzing apparatus. The length of the path traversed by the emitted and reflected light is adjustable.