Can sense powders, granulates and liquids in pipes, tanks or cartons, provided the object in the foreground is nonmetallic. Typical applications include detection of fill levels in hoppers or storage tanks.
Capacitive sensors
Capacitive sensors from Namco Controls (Highland Heights, OH) are designed to sense nonmetallic products. They can be adjusted to ignore or "see through" an object to detect a second object behind it.
Jan 31, 1996
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