Forward scattering laser particulate sensor

Details Forward scattering laser particulate sensor Forward scattering laser particulate sensor

G - Physics

01

N

340/140.1

G01N 21/85 (2006.01)

Patent

CA 1240758

Abstract Forward Scattering Laser Particulate Sensor A sensor employs a laser to obtain a colli- mated light beam for transmission across the gas effluent of a catalytic cracking process. Parti- culate matter entrained in the gas flow forward scatters light energy to a collecting aperture which, in turn focuses the scattered light on a first photodetector. A second photodetector receives directly transmitted light energy. A ratio between the output signals of the two photodetectors is derived and presented to a threshold level detector. If the magnitude of the scatter exceeds a predetermined level it is concluded that a catalyst load dump has occurred. The optical system is carefully selected to ensure that only light energy scattered from a sample volume within the entrained gas flow reaches the first photodetector. This is im- portant because it prevents particulate matter on the surfaces of the transparent windows from affecting the operating of the sensor.

430556

Affiliated with

Also associated with

Rating

Forward scattering laser particulate sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Forward scattering laser particulate sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Forward scattering laser particulate sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1214104