Patent classifications
G01F1/8404
METHOD FOR EQUIPPING A CORIOLIS MASS FLOWMETER WITH ELECTRIC CONNECTIONS
A method (1) for at least partially equipping a Coriolis mass flowmeter (2) with electric connections (3), wherein the Coriolis mass flowmeter (2) at least has at least one measuring tube (5a, 5b), at least one actuator receptacle (6a, 6b) attached to the measuring tube (5a, 5b) and at least one sensor receptacle (7a-7d) attached to the measuring tube (5a, 5b) as structural parts and such a Coriolis mass flowmeter (2) can be implemented for achieving smaller production tolerances, higher accuracy and reliability in production and operation in that the electric connections (3) are applied on at least one structural part of the Coriolis mass flowmeter (2) by means of a mechanical printing method.
CORIOLIS SENSOR AND CORIOLIS MEASURING DEVICE HAVING A CORIOLIS SENSOR
A Coriolis sensor includes: a measurement tube having an inlet and an outlet; an exciter; and two sensor elements, wherein the exciter and/or the sensor element respectively have a coil arrangement and a magnet arrangement, wherein the magnet arrangement has a retainer for magnets, at least one first magnet group and at least one second magnet group, wherein the retainer is U-shaped with a first arm, a second arm and a base connecting the arms, wherein the retainer engages around the coil arrangement, wherein the first magnet group is retained on the first side of the coil arrangement by the retainer, and wherein the second magnet group is retained on the second side of the coil arrangement by the retainer, wherein the retainer has a cavity in a region of each of the arms for receiving a magnet group, wherein the retainer is manufactured using a 3D printing process.
Fluid measurement device and methods of making and using the same
A fluid measurement device and methods of manufacturing and using the same are disclosed. The fluid measurement device includes a conduit configured to transport a fluid, a conductivity sensor in the conduit, and a voltage sensor in the conduit and having first and second rings, probes, or plates. The conductivity sensor is configured to determine the conductivity of the fluid. The voltage sensor is configured to receive a first voltage on the first ring, probe, or plate and detect a capacitance or a second voltage on the second ring, probe, or plate. A value of the capacitance or second voltage corresponds to the amount of fluid in the voltage sensor. The total amount of fluid through the conduit may be determined from amount of fluid in the voltage sensor, the fluid flow rate, the fluid velocity, and the number of samples or the sampling rate.
Multichannel flow tube with supports
A multichannel flow tube (300) for a vibratory meter (5), and a method of manufacturing the multichannel flow tube are provided. The multichannel flow tube comprises a tube perimeter wall (304), a first channel division (302b), and a first support structure (308a). The first channel division is enclosed within and coupled to the tube perimeter wall, forming a first channel (306b) and a second channel (306c). The first support structure is coupled to the tube perimeter wall and the first channel division.
Vibratory meter with pointed flow tube
A vibratory meter (5), and methods of manufacturing the same are provided. The vibratory meter includes a pickoff, a driver, and a flow tube (700) comprising a tube perimeter wall with: a first substantially planar section (706a), a second substantially planar section (706b) coupled to the first substantially planar section to form a first angle θ.sub.1 (704), a third substantially planar section (706c), a fourth substantially planar section (706d), and a fifth substantially planar section (706e).
Coriolis Mass Flow Sensor
A Coriolis mass flow sensor uses a multiple-loops form of sensing tube and combined it with a middle post. The resulted sensing tube has high swing stiffness and low twist stiffness and this increases the sensitivity of the sensor tremendously.
MANIFOLD
A manifold (400, 600, 700) with reduced vortex shedding, a vibrator) meter (5) including the same, and a method of manufacturing both are described. The manifold (400, 600, 700) comprises a first conduit section (202), a second conduit section (204), a splitter section (406, 606, 706) positioned between the first conduit section (202) and the second conduit section (204), the splitter section (406, 606, 706) including a first splitter face (408a, 608a, 708) facing the first conduit section (202), and a first protrusion (412a, 612a. 712), at least a portion of which is positioned on the first splitter face (408a, 608a, 708).
METHOD FOR MANUFACTURING A SILICON-BASED CORIOLIS-FORCE-BASED FLOW SENSING DEVICE, CORIOLIS-FORCE-BASED FLOW SENSING DEVICE, AND SYSTEM FOR MEASURING A PROPERTY OF A FLUID
Embodiments of a Coriolis-force-based flow sensing device and embodiments of methods for manufacturing embodiments of the Coriolis-force-based flow sensing device, comprising the steps of: forming a driving electrode; forming, on the driving electrode, a first sacrificial region; forming, on the first sacrificial region, a first structural portion with a second sacrificial region buried therein; forming openings for selectively etching the second sacrificial region; forming, within the openings, a porous layer having pores; removing the second sacrificial region through the pores of the porous layer, forming a buried channel; growing, on the porous layer and not within the buried channel, a second structural portion that forms, with the first structural region, a structural body; selectively removing the first sacrificial region thus suspending the structural body on the driving electrode.
MEMS-BASED CORIOLIS MASS FLOW CONTROLLER
A mass flow controller assembly includes a housing defining a cavity, a plurality of internal passages, a first inlet, a first outlet, a second inlet, and a second outlet. A valve is connected to the housing, has an inlet fluidly coupled to the second outlet of the housing and an outlet fluidly coupled to the second inlet of the housing. The valve is configured to control fluid flow from the second outlet of the housing to the second inlet of the housing. A microelectromechanical (MEMS) Coriolis flow sensor is arranged in the cavity, includes an inlet fluidly coupled by at least one of the plurality of internal passages to the first inlet of the housing and is configured to measure at least one of a mass flow rate and density of fluid flowing through the MEMS Coriolis flow sensor. An outlet of the MEMS Coriolis flow sensor is fluidly coupled by at least one of the plurality of internal passages to the second outlet of the housing. The second inlet of the housing is fluidly coupled by at least one of the plurality of internal passages to the first outlet of the housing.
FLOW DIVIDER AND FLUID LINE SYSTEM FORMED BY SAME
A flow divider comprises a lumen having perpendicular, symmetry planes intersecting in an axis of inertia connecting the ends. Cross sectional area have radii extending from a geometric center of gravity to the wall and lying at an angle (180180) to a reference axis and being perpendicular to its axis of inertia, wherein each radius lying at an angle =0 to the relevant reference axis points away from the symmetry plane, and fulfills a formula f.sub.i(, P.sub.i) associated with its cross sectional area and defined by a coefficients set P.sub.i (P.sub.i=[a.sub.i b.sub.i m.sub.1i m.sub.2i n.sub.1i n.sub.2i n.sub.3i]) corresponding to the flow divider opening: