The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 22, 2003
Filed:
Dec. 14, 2001
Frédéric Ossart, Nimes, FR;
Nanotec Solution, Nimes, FR;
Abstract
A device for determining the characteristics of a biomass, includes: 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 the medium, and a resistance for measuring the injected current; a conditioning unit ( ) including an alternating voltage generator ( ) and a circuit ( ) 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 ( ) includes a zero method measuring bridge ( ) automatically controlled to deliver the signals (C,G) of measurement of the medium capacity and conductance. The invention is useful for characterizing media containing biological cells, in particular for controlling biological fermentation process.