The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 22, 2014
Filed:
Oct. 20, 2011
Christopher Harrison, Auburndale, MA (US);
Robert J. Schroeder, Cambridge, MA (US);
Matthew T. Sullivan, Westwood, MA (US);
Bradley Martin, St. Fargeau Ponthierry, FR;
Albert Ballard Andrews, Wilton, CT (US);
Oliver Clinton Mullins, Ridgefield, CT (US);
Christopher Harrison, Auburndale, MA (US);
Robert J. Schroeder, Cambridge, MA (US);
Matthew T. Sullivan, Westwood, MA (US);
Bradley Martin, St. Fargeau Ponthierry, FR;
Albert Ballard Andrews, Wilton, CT (US);
Oliver Clinton Mullins, Ridgefield, CT (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
Accurate, real-time detection of dew point of a gaseous sample can be accomplished using the systems and techniques described herein. A gaseous sampling chamber defining an interior volume includes a patterned structure having a roughened surface exposed to the gaseous sampling chamber. The patterned structure includes an open volume accessible by the roughened surface, for example, representing at least about 10% of the interior volume of the gaseous sampling chamber. An illumination source is configured to illuminate at least a portion of the patterned structure. A light detector is configured to receive at least a portion of illumination returned from the patterned structure. A condensate detector is configured to determine a presence of a condensate on the roughened surface in response to an optical property of the patterned surface as modified by the presence of dew.