Drop detecting system with focusing mirror element and vibrator

Details Drop detecting system with focusing mirror element and vibrator Drop detecting system with focusing mirror element and vibrator

1984-11-07

1987-06-16

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

604253, G01N 1506

Patent

active

046738207

ABSTRACT:
An arrangement for improving the detection of drops in a drip chamber has a mirror element configured to focus light from a source to a detector in such a manner that a falling drop occludes a significant portion of the light reflected to the detector. In a preferred embodiment the mirror is located slightly below the drop forming orifice of the drip chamber and is shaped like an arcuate band of a curved surface. In a further preferred embodiment, a rotary motor with an eccentric weight is briefly energized to vibrationally clear any accumulation of droplets from the chamber wall. Other embodiments utilize a plurality of mirror elements to define an optical path from the source to detector which traverses the region throught which a drop falls 3 or more times.

REFERENCES:
patent: 3563090 (1971-02-01), Deltour
patent: 3989381 (1976-11-01), Fulwyler
patent: 4261388 (1981-04-01), Shelton
patent: 4496351 (1985-01-01), Hillel et al.
patent: 4533350 (1985-08-01), Danby et al.

Affiliated with

Also associated with

Rating

Drop detecting system with focusing mirror element and vibrator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drop detecting system with focusing mirror element and vibrator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drop detecting system with focusing mirror element and vibrator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-685269