A method for detecting presence of a liquid using a plurality of sensing circuits 120. An impedance 144 across each of the sensing circuit 120a, 120b, 120c and an impedance across a set of sensing circuits are measured against a predefined range. Based on the measured impedance value, presence of a liquid is determined. The predefined range of impedance may be a range below a threshold impedance. The method may require that a threshold number of sensing circuits in a set should indicate presence of the liquid, else it may be considered as an absence of the liquid. The threshold value of the impedance may decrease if the adjacent sensing circuits indicates presence of the liquid or the threshold number of sensing circuits indicates presence of the liquid. Each of the plurality of sensing circuits may comprise a pair of conductive tracks 130, 140 separated by a corresponding gap. The conductive tracks may be printed on a substrate in conductive ink.
Leak Detection
2024-07-10
Patent
Elektronische Ressource
Englisch
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 / B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen |
GAS LEAK DETECTION SYSTEM AND GAS LEAK DETECTION METHOD
Europäisches Patentamt | 2018
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