Title:
PIEZOELECTRIC RESONATOR
Document Type and Number:
WIPO Patent Application WO2004072622
Kind Code:
A8
Abstract:
A piezoelectric resonator for use in a sensor arrangement for detecting or measuring an analyte in a medium, comprises a quartz crystal plate, having a first crystal surface and a second crystal surface. The first crystal surface is provided with a first electrode, which has a surface area of less than 15 mm<2 >and the second crystal surface is provided with a second electrode. The first electrode may have a rectangular surface shape. A flow cell for use in an apparatus for detecting or measuring an analyte in a medium, comprises walls that form a sensing chamber together with the resonator, and inlet and outlet openings for leading a fluid through the sensing chamber. A part of the resonator constitutes one of the walls of the sensing chamber and is arranged such that the first electrode is situated inside the sensing chamber.
Inventors:
AASTRUP TEODOR (SE)
SMITH JAN (SE)
ANDERSON HENRIK (SE)
SMITH JAN (SE)
ANDERSON HENRIK (SE)
Application Number:
PCT/SE2004/000175
Publication Date:
December 23, 2004
Filing Date:
February 11, 2004
Export Citation:
Assignee:
ATTANA AB (SE)
AASTRUP TEODOR (SE)
SMITH JAN (SE)
ANDERSON HENRIK (SE)
AASTRUP TEODOR (SE)
SMITH JAN (SE)
ANDERSON HENRIK (SE)
International Classes:
G01N11/16; G01N29/02; G01N29/036; G01N29/22; H03H9/13; H03H9/19; (IPC1-7): G01N11/16; H01L41/047; H01L41/107
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