Method and device for measuring levels with a gamma-ray capacity multi-purpose sensor incorporates a gamma-ray sensor and a capacity sensor for localizing barrier films between gas, oil and water.

摘要

A multi-purpose sensor (1) measures oil separation tank (2) levels. A gamma-ray sensor (1a) localizes a barrier film (34) with great density change between gas (3) and oil (4). A capacity sensor (1b) localizes a barrier film (45) with much slide in relative permittivity between oil and water (5). The sensor also has combined measurement electronics (1c).