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Title: Variable path length spectrophotometric probe

Abstract

A compact, variable pathlength, fiber optic probe for spectrophotometric measurements of fluids in situ. The probe comprises a probe body with a shaft having a polished end penetrating one side of the probe, a pair of optic fibers, parallel and coterminous, entering the probe opposite the reflecting shaft, and a collimating lens to direct light from one of the fibers to the reflecting surface of the shaft and to direct the reflected light to the second optic fiber. The probe body has an inlet and an outlet port to allow the liquid to enter the probe body and pass between the lens and the reflecting surface of the shaft. A linear stepper motor is connected to the shaft to cause the shaft to advance toward or away from the lens in increments so that absorption measurements can be made at each of the incremental steps. The shaft is sealed to the probe body by a bellows seal to allow freedom of movement of the shaft and yet avoid leakage from the interior of the probe.

Inventors:
 [1];  [2];  [3]
  1. (157 Greenwood Dr., Martiney, GA 30907)
  2. (104 Recreation Dr., Aiken, SC 29803)
  3. (1144 Thornwood Drive, North Augusta, SC 29891)
Issue Date:
Research Org.:
WESTINGHOUSE SAVANNAH RIVER CO
OSTI Identifier:
868571
Patent Number(s):
5168367
Assignee:
O'Rourke; Patrick E. (157 Greenwood Dr., Martiney, GA 30907); McCarty; Jerry E. (104 Recreation Dr., Aiken, SC 29803); Haggard; Ricky A. (1144 Thornwood Drive, North Augusta, SC 29891) SRS
DOE Contract Number:  
AC09-89SR18035
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
variable; path; length; spectrophotometric; probe; compact; pathlength; fiber; optic; measurements; fluids; situ; comprises; shaft; polished; penetrating; pair; fibers; parallel; coterminous; entering; opposite; reflecting; collimating; lens; direct; light; surface; reflected; inlet; outlet; allow; liquid; enter; pass; linear; stepper; motor; connected; advance; increments; absorption; incremental; steps; sealed; bellows; seal; freedom; movement; avoid; leakage; interior; collimating lens; spectrophotometric measurements; optic fiber; stepper motor; path length; fiber optic; reflecting surface; reflected light; optic fibers; optic probe; probe comprises; spectrophotometric probe; variable path; absorption measurement; bellows seal; /356/250/

Citation Formats

O'Rourke, Patrick E., McCarty, Jerry E., and Haggard, Ricky A. Variable path length spectrophotometric probe. United States: N. p., 1992. Web.
O'Rourke, Patrick E., McCarty, Jerry E., & Haggard, Ricky A. Variable path length spectrophotometric probe. United States.
O'Rourke, Patrick E., McCarty, Jerry E., and Haggard, Ricky A. Wed . "Variable path length spectrophotometric probe". United States. https://www.osti.gov/servlets/purl/868571.
@article{osti_868571,
title = {Variable path length spectrophotometric probe},
author = {O'Rourke, Patrick E. and McCarty, Jerry E. and Haggard, Ricky A.},
abstractNote = {A compact, variable pathlength, fiber optic probe for spectrophotometric measurements of fluids in situ. The probe comprises a probe body with a shaft having a polished end penetrating one side of the probe, a pair of optic fibers, parallel and coterminous, entering the probe opposite the reflecting shaft, and a collimating lens to direct light from one of the fibers to the reflecting surface of the shaft and to direct the reflected light to the second optic fiber. The probe body has an inlet and an outlet port to allow the liquid to enter the probe body and pass between the lens and the reflecting surface of the shaft. A linear stepper motor is connected to the shaft to cause the shaft to advance toward or away from the lens in increments so that absorption measurements can be made at each of the incremental steps. The shaft is sealed to the probe body by a bellows seal to allow freedom of movement of the shaft and yet avoid leakage from the interior of the probe.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}

Patent:

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