G01F1/8409

Self-aligning brace bar

A brace bar, a flow conduit assembly including a brace bar, and a method for assembling a vibrating flowmeter including a brace bar are provided. The brace bar includes a first brace bar plate and a second brace bar plate. The first brace bar plate includes a first aperture and a first notch. The second brace bar plate includes a second aperture and a second notch. The first aperture and the second notch are configured to couple to a first flow conduit. The second aperture and the first notch are configured to couple to a second flow conduit.

CORIOLIS MASS FLOWMETER AND METHOD FOR OPERATING A CORIOLIS MASS FLOWMETER
20180087946 · 2018-03-29 · ·

A Coriolis mass flowmeter with a flange connection for connection to an external pipeline, with at least one oscillation generator, with at least two oscillation sensors, with at least two measuring tubes, with at least one flow divider, wherein the flow divider is arranged upstream of the at least two measuring tubes in the direction of flow, and with at least one flow collector, wherein the flow collector is arranged downstream of the at least two measuring tubes. The Coriolis mass flowmeter has at least an active measuring tube and at least a passive measuring tube being provided, the at least one active measuring tube and the at least one passive measuring tube are designed and arranged separately from one another and the at least one oscillation generator and the at least two oscillation sensors are arranged on the at least one active measuring tube.

Device for determining temperature as well as measuring arrangement for determining flow
09921088 · 2018-03-20 · ·

A device (1) for determining temperature and a measuring arrangement for determining flow that allows for a secure attachment on an object. The device has a measuring element (2) with a temperature-dependent electric resistance value. The measuring element (2) is surrounded by a thermally conductive fixing element (5) and is encompassed by a retaining bracket (6).

Measuring System Having a Measuring Transducer of Vibration-Type

A measuring system comprises: a measuring transducer; transmitter electronics; at least one measuring tube; and at least one oscillation exciter. The transmitter electronics delivers a driver signal for the at least one oscillation exciter, and for feeding electrical, excitation power into the at least one oscillation exciter. The driver signal, has a sinusoidal signal component which corresponds to an instantaneous eigenfrequency, and in which the at least one measuring tube can execute, or executes, eigenoscillations about a resting position. The eigenoscillations have an oscillation node and in the region of the wanted, oscillatory length exactly one oscillatory antinode. The driver signal has, a sinusoidal signal component with a signal frequency, which deviates from each instantaneous eigenfrequency of each natural mode of oscillation of the at least one measuring tube, in each case, by more than 1 Hz and/or by more than 1% of said eigenfrequency.

APPARATUS AND METHOD FOR REDUCING BRAZE JOINT STRESS IN A VIBRATING FLOWMETER

A method for reducing flowmeter braze joint stress is provided. The method comprises the step of bending a flow tube (20) to create at least one thermal expansion bend (300, 302) thereon. The method comprises the step of aligning a flow tube (20) with at least one anchor block (30a, 30b). Additionally, the flow tube (20) is brazed to the at least one anchor block (30a, 30b) in another step, after which the flow tube (20) and the at least one anchor block (30a, 30b) are allowed to cool and contract a predetermined degree after brazing. The method additionally comprises the step of attaching the at least one anchor block (30a, 30b) to a support block (100) after the flow tube (20) has been attached to the at least one anchor block (30a, 30b) and attaching a manifold (90, 92) to each end of the flow tube (20).

Method of Manufacturing a Coriolis Mass Flow Rate Sensor from a Polymeric Material
20170248456 · 2017-08-31 ·

A method of manufacturing a Coriolis mass flowmeter from a polymeric material is described, in which a dynamically responsive manifold is fabricated from the same material as the flow sensor's flow-sensitive elements. The flowmeter is free of mechanical joints and adhesives. The manifold and flow-sensitive elements therefore do not slip or change their location relative one another, nor are they subject to differing degrees of thermal expansion that would otherwise undermine integrity, reliability, and/or accuracy of the boundary condition at the ends of the vibrating flow-sensitive elements.

Mass flow primary with exciter

A method, system, and apparatus for measuring mass flow comprises two tubes for transporting a material; two exciters wherein one of the two exciters is fixedly attached on each of the two tubes configured to induce a vibration in the two tubes; at least two sensors on each of the tubes; a test media flowing through the tube, wherein a phase difference in the tubes is indicative of a mass flow of the test media; and a comparer module operably connected to the at least two sensors on each of the tubes for determining a phase difference of the vibrations in the tubes and determining a mass flow according to the phase difference.

METHOD FOR OPERATING A CORIOLIS MASS FLOWMETER AND CORRESPONDING CORIOLIS MASS FLOWMETER
20170205265 · 2017-07-20 · ·

A method for operating a Coriolis mass flowmeter (1) having at least one measuring tube (2) and at least one sensor (3), wherein the sensor (3) emits an electric sensor signal depending on the temperature of the sensor (3), the sensor (3) is mechanically coupled to the rest of the Coriolis mass flowmeter (1) via a connection (5) and the connection (5) has a thermal resistance. To provide a method for operating a Coriolis mass flowmeter that makes recognition of a change in the connection possible an electric excitation signal is generated, the excitation signal is impressed in the sensor (3), the sensor signal influenced by the excitation signal is detected, a change between the detected sensor signal and a reference signal is determined and the change between the detected sensor signal and the reference signal is associated with a change in the thermal resistance.

METHOD FOR OPERATING A CORIOLIS MASS FLOWMETER AND ASSOCIATED CORIOLIS MASS FLOWMETER
20170205264 · 2017-07-20 · ·

A method for operating a Coriolis mass flowmeter having at least one measuring tube, at least one oscillation generator, at least one oscillation sensor and at least one strain sensor. The oscillation generator is actuated with an oscillation excitation signal and the measuring tube is excited to oscillation by the oscillation generator, the oscillation of the measuring tube is detected by the oscillation sensor and an oscillation sensor signal is generated. The strain sensor is mechanically coupled to the measuring tube via a connection. A change of the mechanical coupling via the connection can be determined by the oscillation of the measuring tube being measured by the strain sensor and a strain sensor signal generated representing oscillation of the measuring tube, a correlation between the strain sensor signal and an oscillation signal representing the oscillation of the measuring tube is identified, and a temporal change of the correlation is determined.

Method of manufacturing a Coriolis mass flow rate sensor from a polymeric material
09677921 · 2017-06-13 · ·

A method of manufacturing a Coriolis mass flowmeter from a polymeric material is described, in which a dynamically responsive manifold is fabricated from the same material as the flow sensor's flow-sensitive elements. The flowmeter is free of mechanical joints and adhesives. The manifold and flow-sensitive elements therefore do not slip or change their location relative one another, nor are they subject to differing degrees of thermal expansion that would otherwise undermine integrity, reliability, and/or accuracy of the boundary condition at the ends of the vibrating flow-sensitive elements.