EP 1127273 A1 20010829 - SENSOR ARRANGEMENT FOR DETECTING THE PHYSICAL PROPERTIES OF LIQUIDS
Title (en)
SENSOR ARRANGEMENT FOR DETECTING THE PHYSICAL PROPERTIES OF LIQUIDS
Title (de)
SENSORANORDNUNG ZUR ERMITTLUNG PHYSIKALISCHER EIGENSCHAFTEN VON FLÜSSIGKEITEN
Title (fr)
DISPOSITIF DETECTEUR PERMETTANT DE DETERMINER LES PROPRIETES PHYSIQUES DE FLUIDES
Publication
Application
Priority
- DE 9903458 W 19991028
- DE 19850799 A 19981104
Abstract (en)
[origin: DE19850799A1] The invention relates to sensor arrangement for detecting the physical parameters of liquids. Said arrangement comprises electroacoustic converters (3, 4) which produce and detect surface acoustic waves having predetermined wave modes. Based on the expansion behavior of these waves a measure for the physical properties of the liquid, especially for its viscosity, can be detected. The sensor arrangement is located on a substrate (1) on which conductor track structures are arranged in such a way that in addition to the electroacoustic converters (3, 4) for measuring viscosity an arrangement for measuring the electric conductivity (5), an arrangement for measuring the relative permittivity (7) and an arrangement for measuring the temperature (6) is configured.
IPC 1-7
IPC 8 full level
G01N 29/02 (2006.01); G01N 11/16 (2006.01); G01N 29/00 (2006.01); G01R 27/22 (2006.01)
CPC (source: EP KR)
G01N 11/16 (2013.01 - EP); G01N 29/036 (2013.01 - KR); G01R 27/22 (2013.01 - EP)
Citation (search report)
See references of WO 0026661A1
Designated contracting state (EPC)
CH DE FR GB LI
DOCDB simple family (publication)
DE 19850799 A1 20000511; AU 1549000 A 20000522; AU 749057 B2 20020620; EP 1127273 A1 20010829; JP 2003502617 A 20030121; KR 20010090813 A 20011019; WO 0026661 A1 20000511
DOCDB simple family (application)
DE 19850799 A 19981104; AU 1549000 A 19991028; DE 9903458 W 19991028; EP 99957946 A 19991028; JP 2000579991 A 19991028; KR 20017005559 A 20010503