A device is provided for sensing the chemical composition of soils and aqueous solutions. The device includes a capacitive fringing field interdigitated electrode sensor integrated into the printed circuit board and configured to sense an electrical impedance. The device also includes an electrical conductivity sensor integrated into the printed circuit board and configured to sense an electrical conductivity. The sensed electrical impedance and electrical conductivity are indicative of chemical properties. The capacitive fringing field interdigitated electrode sensor may also be used to detect the accumulation of ice.
CAPACITIVE FRINGING FIELD SENSORS AND ELECTRICAL CONDUCTIVITY SENSORS INTEGRATED INTO PRINTED CIRCUIT BOARDS
2015-11-26
Patent
Electronic Resource
English
IPC: | G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / G01W METEOROLOGY , Meteorologie |
BiCMOS integrated circuit for capacitive pressure sensors in automotive applications
Tema Archive | 1993
|SOLUTIONS - Special Coverage: Sensors - Integrated Capacitive Wheel-Contact Sensors
Online Contents | 2001
A monolithic myP-ready sum of delta readout circuit with integrated capacitive sensors
Tema Archive | 1996
|Inductive verses capacitive sensors
Online Contents | 2013
|Capacitive sensors for automotive application
British Library Conference Proceedings | 1994
|