PICKOFF GABUNGAN DAN PENGGERAK OSILATOR UNTUK PENGGUNAAN DALAM METER ALIR CORIOLIS DAN METODA PENGOPERASIAN YANG SAMA

摘要

An oscillatory vibration driver is operably connected to a Coriolis flowmeter for use in vibrating the meter flow tubes. The meter electronics contain a mimetic circuit that permits use of the driver as a signal pickoff which provides a measurement of back electromotive force for use in calculating mass flow rate and density from the Coriolis flowmeter. The mimetic circuit contains an analog coil and magnet that facilitate the measurement of back electromotive force, or the mimetic circuit may comprise digital means.