Cooling of a meter by liquid flowing in a flow that is reverse from dispensing flow is described. A plurality of tubes is configured to transport a plurality of fluids comprising a first fluid and a second fluid. Dispense valves attached to corresponding tubes are configured to open when the first fluid is dispensed from a pump to a first outlet. Recirculation valves attached to respective tubes are configured to open when the second fluid is transported from the pump to a second outlet. A meter attached to a tube of the plurality of tubes is configured to measure properties of a fluid when the fluid flows through the tube, wherein the fluid is one of the first fluid and the second fluid. The meter is configured to sense reverse flow when the second fluid flows from the outlet section to the inlet section.

A vibrating-tube fluid measurement device includes a tube, a base block, a magnet which applies a magnetic field to the tube, an excitation source which generates vibration of the tube, a vibration sensor which measures a signal corresponding to a vibration frequency of the tube, and an electrical isolator formed of glass, wherein the vibrating tube is mounted to a base block via the electrical isolator and electrically isolated from the base block via the electrical isolator.

An integrated flow meter includes a support and one or more flow sensitive member(s) integrated with the support. The support is formed by using an injection molding process that overmolds material over an outer surface of the flow sensitive member(s). The materials for the support and for the flow sensitive member(s) preferably are polymeric materials.

A holder is mounted on a U-shaped curved tube portion of a measurement tube formed of a synthetic resin, and wing-shaped strips having a plate shape protrude outward from the holder. Distortion caused by a Coriolis force which depends on a flow rate is generated symmetrically with respect to a center line passing through a distal end of the curved tube portion and parallel to an outbound tube and an inbound tube. Therefore, the outbound tube and the inbound tube are twisted about the center line of the holder, and an amount of distortion is enhanced by the wing-shaped strips under the principle of leverage for detection.

A method for producing at least one oscillation measurement signal, which has vibrations of a vibratory body are registered. A temperature sensor is applied thermally attached with a non fluid contacting, second surface of the vibratory body for producing a temperature measurement signal representing a time curve of a variable temperature of the vibratory body. The temperature measurement signal can follow, however time delayed, a change of the temperature of the vibratory body from a beginning temperature value, to a new temperature value. Based on the oscillation measurement signal as well as the temperature measurement signal, density, measured values are produced representing the density, wherein, during such, discrepancies possibly occurring between the time curve of the temperature of the vibratory body and the temperature measurement signal are taken into consideration, respectively at least partially compensated.

A holder is mounted on a U-shaped curved tube portion of a measurement tube formed of a synthetic resin, and wing-shaped strips having a plate shape protrude outward from the holder. Distortion caused by a Coriolis force which depends on a flow rate is generated symmetrically with respect to a center line passing through a distal end of the curved tube portion and parallel to an outbound tube and an inbound tube. Therefore, the outbound tube and the inbound tube are twisted about the center line of the holder, and an amount of distortion is enhanced by the wing-shaped strips under the principle of leverage for detection.

A flowmeter having one or more conduits (103, 103) and a driver (104) coupled to one or more conduits (103, 103) being configured to vibrate at least a portion of the conduit at one or more drive frequencies. One or more pickoffs (105, 105) are coupled to the one or more conduits (103, 103) and are configured to detect a motion of the conduit. A housing (200) has a first compartment (400) and a second compartment (402). The first compartment (400) is fluid-tight and encloses at least a portion of the one or more conduits (103, 103), the driver (104), and the one or more pickoffs (105, 105). A sealable fill port (418) is configured to allow the addition of a ballast material to the second compartment (402).

A locking portion is attached on a curved tube portion of a measurement tube, and a hole portion is formed at a distal end of the locking portion in a vertical direction, and a conical depression is provided on an inner wall surface on outside of the hole portion. A coupling ring of a coupling portion engages the hole portion, and a pivot needle, coming into abutment with the conical depression abuts from an inner wall surface of the coupling ring which faces the conical depression. The other end of the coupling ring is elastically attracted toward a fixing portion via an elastic member formed of an extension spring.

A system and method for improved flow measurements for LCG, such as liquid petroleum gas (LPG), is disclosed. Embodiments of the present technology detect the presence of a vapor in a fluid flowing in a mass flow meter. A control valve is then adjusted to provide enough back pressure to prevent the measured liquid from flashing and to reduce the presence of vapor in the fluid flowing in the mass flow meter. By keeping the fluid in liquid form, the present technology reduces the vapor flowing in the mass flow meter, increasing the accuracy of mass flow and other measurements. Utilizing a similar principle of vapor detection, embodiments of the present technology provide for improved average parameter value calculation, such as average density calculations and equivalent liquid volume calculations.

A first magnetic holder is attached to a U-shaped curved tube portion of a synthetic resin made measurement tube, and a magnetomotive body having a magnetic pole surface facing forward is embedded in a distal end of the first magnetic holder. A second magnetic holder is provided on a substrate at a position facing the distal end of the first magnetic holder with a space apart therefrom. The second magnetic holder includes a permanent magnet disposed to face the magnetomotive body in the first magnetic holder with a magnetic pole surface facing toward the first magnetic holder, so that the magnetic pole surface having a magnetic pole opposite to that of the magnetomotive body face each other. The permanent magnet of the second magnetic holder retains the curved tube portion of the measurement tube elastically with a space apart therefrom by attracting the magnetomotive body with a magnetic attraction force.