Sealable short-pathlength liquid transmission cell for fourier-transform infrared spectroscopy applications
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorMichael L. Bishop
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Abstract
The invention relates to sealable short-pathlength liquid transmission cells for Fourier-transform infrared spectroscopy applications. In exemplary embodiments, a liquid transmission cell with transmissions sections uses horizontal tubing for inserting and removing fluids from the cell. Angling the tubing relative to a top face of the cell allows small amounts of entrapped air to rise out of the optical path without blocking spectroscopy measurements. The tubing is silver-soldered to the body of the transmission cell to make a leak-free connection.
Claims4
A liquid transmission cell comprising:
- a cell container;
- a cell body;
- an optical window;
- a plurality of coupling devices, wherein the plurality of coupling devices couple the cell body and optical window to the cell container;
- a first and second transmission path, each comprising:
- tubing;
- a cap coupled to a first end of the tubing;
- a ferrule and a nut between the tubing and cap, wherein the ferrule creates a seal between the cap and tubing;
- wherein a second end of the tubing is coupled to a top surface of the cell body by silver soldering.
Dependencies are inferred from the claim text.