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US 12,644,829 B2Granted
Molten salt impurity sensor
AssigneeWisconsin Alumni Research Foundation
InventorsJojo Jacob, Mark Anderson, Scott Sanders
Life of this patent
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Abstract
A molten salt impurities sensor makes use of absorption spectrometry through a specially constructed and hardened probe inserted in the molten salt. The probe provides an opposed window and mirror, both adapted to resist the influence of molten salt, to allow the passage of light from the absorption spectrometer through the window to reflect off of the mirror and to be returned to the absorption spectrometer after passing through the molten salt.
Claims14
A high temperature probe for measurement of molten salt impurities comprising:
- a probe shaft having an axial channel extending along a probe axis to a distal channel end;
- a window resistant to molten salt and attached to the distal channel end to prevent ingress of molten salt into the channel;
- first and second optical fibers extending along the probe axis to a point proximate to the window to direct light through and receive light through the window, respectively;
- a mirror resistant to molten salt;
- and
- a mirror support extending along the probe axis beyond the window to hold and position the mirror to receive light from the first optical fiber and reflect the light to be received by the second optical fiber, the mirror support providing an open portion allowing passage of molten salt between the mirror and the window.
3 more elements
Dependencies are inferred from the claim text.