US 11,940,464 B2
Optical probe for process Raman spectroscopy and method of use
Carsten Uerpmann, Saint Cyr au Mont d'Or (FR); and Michael Gordon Stidham, Ann Arbor, MI (US)
Assigned to Endress+Hauser Optical Analysis, Inc., Ann Arbor, MI (US)
Appl. No. 17/431,850
Filed by Kaiser Optical Systems Inc., Ann Arbor, MI (US)
PCT Filed Feb. 14, 2020, PCT No. PCT/US2020/018247
§ 371(c)(1), (2) Date Aug. 18, 2021,
PCT Pub. No. WO2020/172055, PCT Pub. Date Aug. 27, 2020.
Claims priority of provisional application 62/807,022, filed on Feb. 18, 2019.
Prior Publication US 2023/0194568 A1, Jun. 22, 2023
Int. Cl. G01R 1/067 (2006.01); G01N 21/65 (2006.01)
CPC G01R 1/06755 (2013.01) [G01N 21/65 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A probe, comprising:
a probe body having a center axis defining a proximal end and a distal end and including an aperture in the distal end;
a window affixed in the aperture, wherein the window is substantially optically transparent;
a flange adjoining the proximal end of the probe body and extending outwardly therefrom, the flange including a sealing surface and a sealing edge, wherein the flange separates an in-process portion of the probe from an ex-process portion of the probe, the in-process portion including at least the probe body, the sealing surface and the sealing edge; and
a collar adjoining the flange opposite the probe body in the ex-process portion of the probe,
wherein the probe body, flange and collar define an inner volume therethrough, the inner volume configured to accommodate an optic cable such that the optic cable can pass through the probe body, flange and collar as to be in optical communication with the window, and
wherein at least the in-process portion of the probe consists essentially of an austenitic stainless steel material, wherein the austenitic stainless steel material meets at least one of: ASTM UNS S31050, AISI 310 MoLN, EN X1CrNiMoN25-22-2 and EN 1.4466.