Light rod assembly for spark detection system

Details Light rod assembly for spark detection system Light rod assembly for spark detection system

1990-08-23

1991-10-29

Sikes, William L.

Optical waveguides

With optical coupler

Input/output coupler

385147, G02B 600, G02B 614

Patent

active

050610260

ABSTRACT:
A readily replaceable light rod assembly for coupling infrared energy to a photoelectric sensor element in a spark detector system used for monitoring a zone through which fine particulate matter is conveyed at high speed by pneumatic action. The light rod assembly comprises an elongate clad glass rod of optical glass, polished at both ends, positioned inside a tubular housing of Teflon material. The glass rod is fastened inside the housing by a set screw and both ends of the housing are threaded, with the input, or high thermal energy end, screwing into an end cap holding a quartz glass window, and the other, or output end, into the threaded receptacle of the sensor element.

REFERENCES:
patent: 4750795 (1988-06-01), Blotekjaer
patent: 4784456 (1988-11-01), Smith

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