Abstract: A Coriolis flowmeter sensor capable of handling large mass flow rates and having a reduced flag dimension. In order to have a reduced flag dimension, each of the flow tubes forms a semicircle between an inlet and an outlet. Brace bars, connected to the flow tubes proximate the inlet and outlet, separate the frequencies of vibration in the flow tubes. Pick-offs are positioned on the flow tubes at a position that allows the pickoffs to maximize detection of low amplitude, high frequency vibrations of the flow tubes required to have a reduced flag dimension.

Abstract: A Coriolis flowmeter sensor capable of handling large mass flow rates and having a reduced flag dimension. In order to have a reduced flag dimension, the flow tubes are formed to have a substantially semicircular arc between an inlet and an outlet. Brace bars connected to the flow tube proximate, the inlet and outlet, separate the frequencies of vibration in the flow tubes. Pick-off sensors are positioned upon the substantially semicircular arc of the flow tube at a position that allow the sensors to maximize detection of low amplitude, high frequency vibrations of the flow tubes required to have a reduced flag dimension.

Abstract: A Coriolis flowmeter sensor having a reduced flag dimension. In order to have a reduced flag dimension, the entire length of the flow tubes must vibrate to make the flowmeter sensor more sensitive to Coriolis effects. When the entire length of the flow tubes vibrate, a first set of brace bars connected to the flow tube separates the frequencies of vibration in the flow tubes. A second set of brace bars connected to the flow tubes enhances the zero stability of the flowmeter.

Abstract: A system enclosing a Coriolis flowmeter in a explosion proof housing. The explosion proof housing is structured in a way that the housing can withstand an explosion of volatile material inside the housing. The explosion proof housing prevents sparks and heat inside the housing from igniting volatile material outside the housing. Any gaps or openings in the explosion proof housing provide a flame path of sufficient length to cool a flame or hot material escaping from the housing. The use of the secondary housing as an explosion proof compartment allows the use of a driver having greater power as well as conventional leads inside the housing.

Abstract: A drive system for use in a temperature environment. The drive system is made of materials that can withstand high temperatures without degrading. There are no plastics or epoxy adhesives used in this drive system. The drive system is also made more efficient by placing the drive system on a flow tube outside of a loop in the flow tube between the inlet and the outlet.