EP 1177417 A1 20020206 - METHOD AND APPARATUS FOR DETECTION OF A FLUID LEVEL IN A CONTAINER
Title (en)
METHOD AND APPARATUS FOR DETECTION OF A FLUID LEVEL IN A CONTAINER
Title (de)
VERFAHREN UND VORICHTUNG ZUR ERFASSUNG DES FLUIDSTANDES IN EINEM BEHÄLTER
Title (fr)
PROCEDE ET APPAREIL DE DETECTION DE NIVEAU DE LIQUIDE DANS UN CONTENANT
Publication
Application
Priority
- US 0001212 W 20000119
- US 11630299 P 19990119
Abstract (en)
[origin: WO0042395A1] A fluid level sensor is disclosed having first and second vertically and horizontally non-overlapping electrode plates for placing on a wall of a fluid container. Most preferably, the plates are also vertically spaced from each other. The capacitor plates are driven by a high frequency square wave. By forming non-overlapping plates and driving them using a high frequency, the level of a fluid within the container, particularly viscous fluid, is more accurately detected. Control and detection circuitry is also disclosed to trigger an alarm if the fluid level drops below a critical level within the container.
IPC 1-7
IPC 8 full level
G01F 23/26 (2006.01)
CPC (source: EP)
G01F 23/265 (2013.01); G01F 23/266 (2013.01); G01F 23/268 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0042395 A1 20000720; WO 0042395 A9 20011011; AU 2730300 A 20000801; EP 1177417 A1 20020206; EP 1177417 A4 20030723
DOCDB simple family (application)
US 0001212 W 20000119; AU 2730300 A 20000119; EP 00905654 A 20000119