Sensor for testing bank notes, has opening for performing pressure compensation between interior and surrounding of housing, where opening is closed with filter, which consists of sintered material and comprises semi-permeable membrane

The sensor has an opening for performing pressure compensation between an interior of a housing (1) and the surrounding of the housing. The opening is closed with a filter (4), which consists of a sintered material. The filter comprises a semi-permeable membrane made of PTFE. The opening is arranged...

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Hauptverfasser: NOEMMER, FRANZ, HENNERKERS, URS, BERNGEHER, WALTER, ENGELHARDT, FRANZ
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Sprache:eng ; ger
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creator NOEMMER, FRANZ
HENNERKERS, URS
BERNGEHER, WALTER
ENGELHARDT, FRANZ
description The sensor has an opening for performing pressure compensation between an interior of a housing (1) and the surrounding of the housing. The opening is closed with a filter (4), which consists of a sintered material. The filter comprises a semi-permeable membrane made of PTFE. The opening is arranged at a position of the housing, and lies outside a region of sensor components (5, 6) and outside a transparent region (2) provided in the housing. A deflector surface (7) is arranged at the interior of the housing, where the deflector surface lies opposite to the opening with the filter. Die Erfindung betrifft einen Sensor für die Prüfung von Wertdokumenten, insbesondere von Banknoten. Der erfindungsgemäße Sensor für die Prüfung von Wertdokumenten, insbesondere Banknoten, weist ein Gehäuse auf, welches für die Prüfung der Wertdokumente verwendete Sensorkomponenten aufnimmt und druckdicht verschlossen ist, wobei mindestens eine mit einem Filter verschlossene Öffnung für einen Druckausgleich zwischen dem Inneren des Gehäuses und der Umgebung des Gehäuses vorgesehen ist.
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subjects CHECKING-DEVICES
HANDLING OF COINS OR OF PAPER CURRENCY OR SIMILAR VALUABLEPAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING,DISPENSING, CHANGING OR DEPOSITING
PHYSICS
title Sensor for testing bank notes, has opening for performing pressure compensation between interior and surrounding of housing, where opening is closed with filter, which consists of sintered material and comprises semi-permeable membrane
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