Patent ID: 6817754
Filing Date: 2004-11-16
Classification: G01N

Abstract:
A fuel freezing point monitoring device, for determining freezing point of a fuel sample, comprising:a test chamber having an internal channel for retaining the fuel sample, said internal channel having a length; an input into said test chamber to allow input of the fuel sample into said internal channel from a fuel source; an output out of said test chamber to allow exiting of the fuel sample in order to properly discharge the fuel sample; a cooler in thermal contact with said test chamber for cooling the fuel sample in said test chamber; a light transmission path along a length of said internal channel of said test chamber and traveling through the fuel sample along said length, said light transmission path having an entrance into said test chamber, an exit out of said test chamber and providing a path for light to travel, said light transmission path being a non-linear path between said entrance and said exit of said light transmission path; a light source which directs light into said entrance of said light transmission path; and a light detector to detect light level from said light source exiting said exit of said light transmission path.