Title:
【発明の名称】?ス混合物内の?ス濃度を測定するための方法及び?ス濃度を決定するための電気化学的?ンサ
Document Type and Number:
Japanese Patent JPH10510622
Kind Code:
A
Abstract:
PCT No. PCT/EP95/04899 Sec. 371 Date Jun. 16, 1997 Sec. 102(e) Date Jun. 16, 1997 PCT Filed Dec. 12, 1995 PCT Pub. No. WO96/18890 PCT Pub. Date Jun. 20, 1996The invention relates to a method as well as to an electrochemical sensor for measuring the concentration of at least one predetermined gas in a gas mixture by means of an electrolyte provided with a first and a second surface-mounted electrode, which are exposed to the gas mixture together with the electrode connected to a voltage source, wherein the voltage source causes an electrical current flowing through the electrodes and electrolyte, which is dependent upon the ion concentration and is measured as an indicator of the gas concentration. In order to be able to dispense with reference measurements as well as diffusion holes or diffusion layers, gaseous molecules are adsorbed in the region of the first catalytically active electrode and the electrolyte, which are subsequently split into atoms and then either transformed into ions or subsequently participate in a chemical reaction, whereby the ion concentrations arising in both cases depend on the catalytic action of at lease one electrode and the gas concentration to be measured.
Inventors:
Fun Geloon, ?????
Application Number:
JP51825496A
Publication Date:
October 13, 1998
Filing Date:
December 12, 1995
Export Citation:
Assignee:
Heraeus Eletronite in National NV
International Classes:
G01N27/41; G01N27/406; G01N27/407; G01N27/416; (IPC1-7): G01N27/416; G01N27/41
Attorney, Agent or Firm:
Motohiro Kurauchi (1 outside)