An electro-optical system, without moving parts, reliably indicates liquid levels at cryogenic temperatures. Glass prisms, which act as liquid level probes inside the tank, extend from optically aligned photoelectric assemblies mounted on the outside.
Liquid-level meter has no moving parts
01.06.1964
Sonstige
Keine Angabe
Englisch
NTRS | 1998
LIQUID LEVEL METER, SPRAYING ASSEMBLY, AND UNMANNED AERIAL VEHICLE
Europäisches Patentamt | 2021
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|Online Contents | 2008