EP 1565717 A2 20050824 - OPTICAL DETECTOR FOR THE PRESENCE OF GAS BUBBLES IN A LIQUID
Title (en)
OPTICAL DETECTOR FOR THE PRESENCE OF GAS BUBBLES IN A LIQUID
Title (de)
OPTISCHE VORRICHTUNG ZUM FESTSTELLEN DER ANWESENHEIT VON GASBLASEN IN EINER FLÜSSIGKEIT
Title (fr)
DISPOSITIF OPTIQUE POUR DETECTER LA PRESENCE DE BULLES DE GAZ DANS UN LIQUIDE
Publication
Application
Priority
- FR 0303480 W 20031125
- FR 0214805 A 20021126
Abstract (en)
[origin: FR2847670A1] A light source (1) has a lighting zone (4) which intersects the vision zone (5) of a light detector (2) to give a bubble detection zone (3). A processor (6) compares successive luminous intensity measurements and increments/decrements a counter according to whether a threshold is exceeded. When the counter exceeds a further threshold a warning signal to the user system is initiated An Independent claim is also included for: Equipment for detecting gas bubbles in liquid which includes light source and light detector and a control and processing unit able to compare successive luminous intensity measurements and increment/decrement a counter
IPC 1-7
IPC 8 full level
G01N 21/49 (2006.01)
CPC (source: EP US)
G01N 21/49 (2013.01 - EP US)
Citation (search report)
See references of WO 2004051211A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2847670 A1 20040528; FR 2847670 B1 20050610; AU 2003294079 A1 20040623; BR 0307926 A 20050823; EP 1565717 A2 20050824; JP 2006508356 A 20060309; US 2006061763 A1 20060323; US 2008218746 A1 20080911; US 7372063 B2 20080513; WO 2004051211 A2 20040617; WO 2004051211 A3 20050609
DOCDB simple family (application)
FR 0214805 A 20021126; AU 2003294079 A 20031125; BR 0307926 A 20031125; EP 03789495 A 20031125; FR 0303480 W 20031125; JP 2004556421 A 20031125; US 10593808 A 20080418; US 53647205 A 20050525