Flow sensors

Details Flow sensors Flow sensors

1986-11-03

1988-12-13

Orsino, Joseph A.

Measuring and testing

Volume or rate of flow

Using rotating member with particular electrical output or...

7386108, G01F 110

Patent

active

047901950

ABSTRACT:
The disclosed apparatus for sensing the flow of liquid along a passage includes a turbine-type rotor formed of high-resistivity insulation and supported coaxially in the passage. The rotor has spiral vanes distributed about a core. A stator upstream of the rotor provides a spiralling flow pattern in the zone of the rotor. The stator has vanes that spiral in the same direction as the rotor's vanes but at a lower pitch. An electrical sensor provides a varying signal representing the rotation of the rotor. The output signal waves are accurately proportional to the flow over an unusually wide range of flow rates. The electrical sensor includes electrodes exposed to the flow passage, a sensing electrode that is wider than the thickness of a rotor vane and a metal pipe that serves as a companion electrode. Successive pairs of rotor vanes span the sensing electrode at intervals as the rotor turns, periodically acting as barriers that reduce conduction through the liquid in the passage.

REFERENCES:
patent: 3177711 (1965-04-01), Ham et al.
patent: 4164866 (1979-08-01), Mitchell et al.
patent: 4333354 (1982-06-01), Feller
patent: 4348906 (1982-09-01), Feller
patent: 4399696 (1983-08-01), Feller
patent: 4462264 (1984-07-01), Feller
patent: 4535637 (1985-08-01), Feller
patent: 4649756 (1987-03-01), Feller

Affiliated with

Also associated with

Rating

Flow sensors does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2190229