G - Physics – 01 – F
Patent
G - Physics
01
F
73/69
G01F 23/26 (2006.01)
Patent
CA 1195529
FLUID LEVEL MEASURING SYSTEM ABSTRACT A system for measuring the level or volume of a fluid within a fluid storage vessel which comprises: a multi-capacitor type fluid level sensor formed of a pair of capacitors of fixed and substantially like capacitive value and two capacitors having like open dielectric spaces for receiving varying levels of the fluid within the vessel and with the fluid in the spaces consisting of a pair of capacitors of variable capacitive value. The four capacitors of the sensor are connected together to form the four capacitive sides of a Wheatstone bridge circuit the pair of fixed value capacitors connected as two opposing sides of the bridge and the pair of variable value capacitors connected as the remaining two opposing sides of the bridge. A source of alternating current of constant voltage and set frequency is applied across the bridge circuit to a first set of bridge terminals at opposite corners of the bridge each of such terminals located between a fixed capacitor and a variable capacitor of the sensor. A detection circuit is connected across the bridge to a second set of bridge terminals (independent of said first set of terminals) and at opposite corners of the bridge each of such terminals located between a fixed capacitor and a variable capacitor of the sensor. The current value in the detection circuit is measured and indicates the value as a fluid level or fluid volume measurement in direct linear relationship with the current value. The system is not limited to fluid level or fluid volume measurements -i- of liquids in vessels and may be used for volume measurement with respect to a wide variety of multi-component systems (including liquid/liquid, liquid/gas, liquid/solid, solid/gas, etc.) as long as the dielectric constants for the two or more components are different. The invention also encompasses a method for measuring the level or volume of a fluid within the fluid storage vessel, and further encompasses a fluid level or fluid volume sensor or probe for mounting in the fluid storage vessel for sensing the level or volume of the fluid within that vessel. -ii-
420586
Gowling Lafleur Henderson Llp
Twardowski Zbigniew
LandOfFree
Apparatus and method for fluid level measurement does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for fluid level measurement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for fluid level measurement will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1257586