Analog flow meter instrument

Measuring and testing – Volume or rate of flow – Using differential pressure

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

73DIG11, 250209, G01F 122

Patent

active

048648701

ABSTRACT:
An analog flow meter instrument includes a flow meter monitoring the flow of fluid. A sensor unit is secured to the flow meter and include an indicator rod in an oil filled tube. The rod extends into the flow meter and is positioned in accordance with the flow. The sensor includes a housing having a slot to visually read the location of the rod. A light beam unit is mounted to one side of the tube and a plurality of phototransistors in a linear array are mounted to the opposite side of the tube. The phototransistors are connected in a current summing network to generate an analog current signal, the amplitude of which is linearly related to the fluid flow. The output signal is amplified and connected to output devices. The analog signal can be reliably transmitted over relatively long distances within the factory environment using conventional low voltage wiring. A "dirty" oil monitor is connected to the zero flow phototransistor and includes an LED which is energized at zero flow and with flow if the dirty oil blocks proper light transmission.

REFERENCES:
patent: 3582662 (1971-06-01), Soina
patent: 4566337 (1986-01-01), Smart
patent: 4630485 (1986-12-01), Wastl, Sr.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Analog flow meter instrument does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Analog flow meter instrument, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analog flow meter instrument will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-907823

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.