Mass flow meter

Details Mass flow meter Mass flow meter

1993-07-06

1995-01-17

Chilcot, Jr., Richard E.

Measuring and testing

Volume or rate of flow

Mass flow by imparting angular or transverse momentum to the...

G01F 184

Patent

active

053816978

ABSTRACT:
A mass flow meter for flowing media which works on the Coriolis Principle includes a straight measuring pipe carrying the flow medium, an oscillator acting on the measuring pipe and two transducers detecting Coriolis forces and/or Coriolis oscillations based on Coriolis forces. The meter also has a carrier pipe holding the measuring pipe, the oscillator and the transducers and two temperature sensors that detect the temperature of the measuring pipe and correct the measured value depending on the temperature of the measuring pipe. The measuring pipe and the carrier pipe are connected to one another in a way that excludes relative axial movements, and the axial distance between the connecting points of the measuring pipe carrier pipe represents the oscillation length of the measuring pipe. The mass flow meter is designed so that, in a simple way, the measured value is largely independent from temperature changes and from forces acting from the outside and so that a length-change sensor that detects changes in the oscillation length of the measuring pipe can correct the measured value depending on the oscillation length of and stress on the measuring pipe.

REFERENCES:
patent: 4491009 (1985-01-01), Ruesch
patent: 4768384 (1988-09-01), Flecken et al.
R. Boll und G. Hinz, Sensoren aus Amorphen Metallen, Technische Messen tm, 52, Jahrgang, Heft May 1985.
Von W. Steffen und Dr. W. Stumm, Direkte Massedurchflussmessung Insbesondere mit Corioliserfahren, Messen Profen Aut. (1987).

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