EP 1272832 A1 20030108 - DEVICE AND METHOD FOR DETERMINING CHARACTERISTICS OF A BIOMASS
Title (en)
DEVICE AND METHOD FOR DETERMINING CHARACTERISTICS OF A BIOMASS
Title (de)
VORRICHTUNG UND VERFAHREN ZUR BESTIMMUNG VON EIGENSCHAFTEN EINER BIOMASSE
Title (fr)
DISPOSITIF ET PROCEDE DE DETERMINATION DE CARACTERISTIQUES D'UNE BIOMASSE
Publication
Application
Priority
- FR 0101166 W 20010413
- FR 0004808 A 20000414
Abstract (en)
[origin: WO0179828A1] The invention concerns a device for determining the characteristics of a biomass, comprising: a probe (S, S') including electrodes, two or four in number, for injecting a current into a medium containing biological cells and for reading the voltage applied to said medium, and a resistance for measuring the injected current; a conditioning unit (10) comprising an alternating voltage generator (112) and a circuit (200) processing current and voltage measuring signals, so as to deliver signals (C, G) respectively of measurement of the capacity and conductance of the medium. The conditioning unit (10) comprises a zero method measuring bridge (150) automatically controlled to deliver the signals (C, G) of measurement of the medium capacity and conductance. The invention is useful in particular for characterising media containing biological cells, in particular for controlling biological fermentation process.
IPC 1-7
IPC 8 full level
G01N 27/02 (2006.01); G01N 27/22 (2006.01); G01N 33/487 (2006.01)
CPC (source: EP US)
G01N 33/48735 (2013.01 - EP US); C12M 41/36 (2013.01 - EP US); C12M 41/46 (2013.01 - EP US)
Citation (search report)
See references of WO 0179828A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0179828 A1 20011025; AU 5234601 A 20011030; EP 1272832 A1 20030108; JP 2003531373 A 20031021; US 2003070942 A1 20030417; US 6596507 B2 20030722
DOCDB simple family (application)
FR 0101166 W 20010413; AU 5234601 A 20010413; EP 01925661 A 20010413; JP 2001576445 A 20010413; US 1800401 A 20011214