Global Patent Index - EP 1161678 A4

EP 1161678 A4 20070221 - HYBRID FILM TYPE SENSOR

Title (en)

HYBRID FILM TYPE SENSOR

Title (de)

SENSOR VOM HYBRIDSCHICHTTYP

Title (fr)

CAPTEUR DE TYPE FILM HYBRIDE

Publication

EP 1161678 A4 20070221 (EN)

Application

EP 00978779 A 20001120

Priority

  • US 0031660 W 20001120
  • US 44433499 A 19991119

Abstract (en)

[origin: WO0136956A1] A miniaturized gas sensor comprises a thick-or-thin type electrodes, on a non-conductive supportive susbtrate (1), and in contact with a solid ionomer electrolyte (8), for the detection of toxic gases, i.e., carbon monoxide, and other oxidizable or reducible gases and vapors is described. The all-solid planar sensor cell has two or more film type electrodes (4, 5, 7) arranged on a non-conductive planar surface of a supportive substrate. The electrodes are discret and in intimate contact with the same solid polymer ionomer membrane. The sensor cell contains no liquid electrolyte and is operated in a constant-voltage, potentiostatic or potentiodynamic mode. A high sensitivity to a select gas or vapor is achieved by a novel three-phase contact area design for a sensing electrode which provides contact with the solid ionomer electrolyte, as well as the gas sample via diffusion openings or holes (2) that penetrate through the supportive substrate.

IPC 1-7

G01N 27/407

IPC 8 full level

G01N 27/30 (2006.01); G01N 27/407 (2006.01); G01N 27/416 (2006.01); G01N 27/49 (2006.01); G01N 33/00 (2006.01); G01N 27/333 (2006.01)

CPC (source: EP)

G01N 27/4074 (2013.01); G01N 27/3335 (2013.01)

Citation (search report)

Citation (examination)

  • US 5331310 A 19940719 - STETTER JOSEPH R [US], et al
  • VAN DER WAL P D ET AL: "Extremely stable Nafion based carbon monoxide sensor", SENSORS AND ACTUATORS B: CHEMICAL: INTERNATIONAL JOURNAL DEVOTED TO RESEARCH AND DEVELOPMENT OF PHYSICAL AND CHEMICAL TRANSDUCERS, ELSEVIER S.A, CH, vol. 35, no. 1, 1 September 1996 (1996-09-01), pages 119 - 123, XP004049741, ISSN: 0925-4005, DOI: 10.1016/S0925-4005(97)80040-8

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

WO 0136956 A1 20010525; WO 0136956 A9 20020523; AU 1620401 A 20010530; CA 2360595 A1 20010525; CA 2360595 C 20060207; CN 1195980 C 20050406; CN 1347495 A 20020501; EP 1161678 A1 20011212; EP 1161678 A4 20070221; JP 2003515131 A 20030422

DOCDB simple family (application)

US 0031660 W 20001120; AU 1620401 A 20001120; CA 2360595 A 20001120; CN 00804346 A 20001120; EP 00978779 A 20001120; JP 2001538793 A 20001120