Patent ID: 8292497

Claim:
A cloud point monitoring system, comprising: a first conduit, having a first aperture and a second aperture, in fluid communication with a fuel conduit to allow a portion of a diesel fuel supply in the fuel conduit to enter the first aperture, flow in the first conduit and exit the second aperture; a light source disposed in the first conduit, the light source configured to emit light in the first conduit in response to a first signal; a light sensor disposed in the first conduit and spaced from the light source, the light sensor configured to receive at least a portion of the light and to generate a second signal indicative of a light intensity level; a temperature sensor disposed on the first conduit and configured to generate a third signal indicative of a temperature of the diesel fuel supply in the first conduit; and a controller configured to generate the first signal to induce the light source to emit light, the controller further configured to receive the second signal from the light sensor and the third signal from the temperature sensor and to determine a cloud point temperature value associated with the diesel fuel supply based on the second and third signals.