Liquid level detector and method for a vapor deposition container

An optical probe is sealingly mounted in an access port of a pressurized container. The probe comprises a glass rod of a predetermined thickness having a conical end tip. An optical transmitter and receiver is connected to the glass rod. The fiber optic transmitter and receiver sends visible red lig...

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Bibliographische Detailangaben
Hauptverfasser:	KULHA, EDWARD
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL METERING BY VOLUME PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS TESTING THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	An optical probe is sealingly mounted in an access port of a pressurized container. The probe comprises a glass rod of a predetermined thickness having a conical end tip. An optical transmitter and receiver is connected to the glass rod. The fiber optic transmitter and receiver sends visible red light down the glass rod. When the liquid level inside the container drops below the end tip of the glass rod, reflected light will be received from the glass rod and detected.