Abstract: Method and apparatus (121) for providing temperature flow rate compensation for a Coriolis flow meter. The described compensation compensates both flow calibration factor and the nominal time delay, commonly called “zero” in the art. After a Coriolis flow meter is installed into a process, whether for calibration or for actual process use, it need only be zeroed once over its lifetime following its installation. This is a significant improvement over prior Coriolis flow meters that may need to be re-zeroed after minor changes in pressure, temperature, or installation.

Abstract: A Coriolis flow meter comprising a pair of flow tubes (301, 302), a drive system (D) comprising a coil component (L) and a magnet component (M) that are sized and located such that the momentum of the coil component is equal and opposite to the momentum of the magnet component.

Abstract: A method and apparatus for validating the flow calibration factor of a Coriolis flowmeter. In accordance with a first embodiment, an improved material density is obtained by measuring material density when the temperature of the material is equal to a predetermined reference temperature. In accordance with a second embodiment, a preprogrammed data base stores density/temperature relationships. Improved density information is obtained by measuring the density and temperature of the material, applying the measured density/temperature information from the data base, and obtaining density information compensated for a predetermined reference temperature. The improved density information obtained for both embodiments is unaffected by temperature changes and is used to validate the flow calibration factor. The flow calibration factor compensation for pressure changes and changes in material composition is obtained in a similar manner.

Abstract: A method and apparatus is disclosed that determines the density (602) of a material flowing through a Coriolis flow meter. The density is used to infer the pressure (608) of the flowing material. The inferred pressure may be used to correct for the secondary pressure effect in the Coriolis flow meter or may be reported to an external device.

Abstract: A Coriolis flow meter includes at least one flow conduit (103), including a first conduit node (603a) and a second conduit node (603b) and a bending axis W that intersects the flow conduit (103) at the first conduit node (603a) and at the second conduit node (603b). The flow conduit (103) vibrates around the bending axis W. The meter further includes a drive system (104) and a balance system (600) coupled to the flow conduit (103). The balance system (600) includes two or more Y-balance weights (601a, 601b) and two or more attachment members (602a, 602b) that couple the two or more Y-balance weights (601a, 601b) to the flow conduit (103). At least a first Y-balance weight (601a) is coupled to the flow conduit (103) at a first location between the first conduit node (603a) and the drive system (104) and at least a second Y-balance weight (601b) is coupled to the flow conduit (103) at a second location between the drive system (104) and the second conduit node (603b).

Abstract: A selection system (100) that selects fluid process systems is comprised of an interface (101, 103) and a processing system (102). The processing system (102) directs the interface (101, 103) to transfer a first signal that indicates user prompts. The interface (101, 103) receives a second signal that indicates user inputs provided responsive to the user prompts. The user inputs indicate fluid process information. The processing system (102) processes the fluid process information to select a first one of the fluid process systems. The processing system (102) obtains first performance and specification information for the first one of the fluid process systems. The processing system (102) directs the interface (101, 103) to transfer a third signal that indicates the first performance and specification information for the first one of the fluid process systems.

Abstract: A flow meter filter system (200) according to an embodiment of the invention includes a noise pass filter (203) configured to receive a first version of a flow meter signal and filter out the flow meter data from the flow meter signal to leave a noise signal, a noise quantifier (204) configured to receive the noise signal from the noise pass filter (203) and measure noise characteristics of the noise signal, a damping adjuster (205) configured to receive the noise characteristics from the noise quantifier (204) and generate a damping value based on the noise characteristics, and a filter element (206) configured to receive a second version of the flow meter signal and receive the damping value from the damping adjuster (205), with the filter element (206) being further configured to damp the second version of the flow meter signal based on the damping value in order to produce a filtered flow meter signal.

Abstract: A measurement system that can measure scattered light across a predetermined scatter angle is disclosed. The measurement system has a light source configured to provide light along a first axis. The measurement system has a lens system aligned along a second axis that has a first focus near the first axis and where the second axis is different than the first axis. The measurement system has a sensor located on the second axis at a second focus of the lens system and is configured to detect scattered light near the first focus. The measurement system has a mask located on the second axis and is configured to limit the light that reaches the sensor to a predetermined angle of scatter. The disclosed invention eliminates the need for multiple nephelometric measuring devices and also system verification devices in order to perform assay of the presents or absence or number of suspended particles in a media as well as verification of the systems ability to measure in compliance to required performance attributes.

Abstract: An actuator assembly (1) comprises a body (2) in which works an actuating piston (7), a first piston (5) and at least one second piston (6), a chamber (26) containing a substantially incompressible fluid by which each of the first and second pistons (5, 6) acts on the actuating piston (7). The movement of the first piston (5) from a retracted position to an extended position acts via the fluid to cause the actuating piston (7) to move from a retracted position to an operational position, and subsequent movement of a second piston (6) from a retracted position to an extended position acts via the fluid to cause an actuation movement of the actuating piston (7).

Abstract: A measurement system that has multiple sensors or multiple light sources is disclosed. The measurement system comprising a light source directed along a first axis and configured to illuminate a sample volume. The measurement system has a first sensor aligned along a second axis and is configured to detect scattered light in the sample volume. The measurement system has a second sensor aligned along a third axis and is also configured to detect scattered light in the sample volume.

Abstract: A flow meter monitoring system (100) is provided according to an embodiment of the invention. The flow meter monitoring system (100) includes a communication interface (101) configured to communicate with one or more flow meters and receive meter calibration values for a flow meter of the one or more flow meters. The flow meter monitoring system (100) further includes a processing system (102) in communication with the communication interface (101) and configured to receive the meter calibration values from the communication interface and correlate the meter calibration values to known meter calibration values (114) in order to determine the flow meter type.

Abstract: The optical design of a measurement system is disclosed. The measurement system comprising a light source configured to provide light along a first axis. The measurement system has a reflecting lens aligned along a second axis where the reflecting lens has a first focus on the second axis and a second focus on the second axis where the second focus is between the first focus and the reflecting lens and where the second focus is positioned near the first axis. The measurement system has a field lens located on the second axis and positioned such that the second focus of the reflecting lens occurs inside the field lens. The measurement system has a relay lens system aligned to the second axis where the relay lens system forms a first focus at the second focus of the reflecting lens. The measurement system has a sensor located on the second axis at a second focus of the relay lens system and is configured to detect scattered light near the second focus of the reflecting lens.

Abstract: A measurement system that can self calibrate is disclosed. The measurement system comprising a first light source directed along a first axis and configured to illuminate a sample volume. The measurement system has a sensor aligned along a second axis and is configured to detect scattered light in the sample volume. The measurement system has a second light source aligned along the second axis that is configured to illuminate the sensor during a calibration procedure.

Abstract: A measurement system having dual measurements capabilities is disclosed. The measurement system has a light source configured to provide light along a first axis that illuminates a sample media. The measurement system has a first sensor configured to measure scattered light in a sample media. The measurement system has a second sensor configured to measure light passing through the sample media.

Abstract: A single input, multiple output flow meter (200) is provided. The flow meter (200) includes an intake conduit (202) and a flow divider (203). The flow meter (200) further includes a first flow sensor element (204) coupled to the flow divider (203), including a first output conduit (206), and is configured to generate a first flow signal. The flow meter (200) further includes at least a second flow sensor element (205) coupled to the flow divider (203), including a second output conduit (207), and is configured to generate a second flow signal. The input flow can be metered through the first output conduit (206) by the first flow sensor element (204), can be metered through the second output conduit (207) by the second flow sensor element (205), or can be simultaneously metered through both the first output conduit (206) by the first flow sensor element (204) and through the second output conduit (207) by the second flow sensor element (205).

Abstract: A system and method for a valve for an expandable gas or fluid valve is disclosed. The valve comprises an electromagnetic switch with a male connector on one face, and a female connector on an opposite face. The electromagnetic switch has a passageway connecting the male connector with the female connector. An output port is switchably connected to the passageway by the electromagnetic switch. The male connector on one face can be coupled to the female connector on another electromagnetic switch, forming a line or chain of electromagnetic switches.

Abstract: A manifold assembly for a ventilator is disclosed. The manifold assembly has an oxygen inlet connector and compressed air inlet connector mounted on the front face of the manifold. A compressed air filter and an oxygen filter are mounted on the bottom side of the manifold. Two regulator mounts are integrated into the manifold and an oxygen regulator and a compressed air regulator are mounted into the two regulator mounts.

Abstract: An integrated regulator mount for a ventilator is disclosed. The ventilator has the regulator mount built into a manifold. The regulator mount is formed into the manifold on two opposite faces. One face is configured to mount the valve seat for the regulator. The valve spring assembly is held against the valve seat by a valve spring retaining plug mounted in the manifold. The regulator case and diaphragm assembly mount on the opposite face of the manifold.

Abstract: A pneumatic shuttle valve for a ventilator is disclosed. The pneumatic shuttle valve selectively connects one of two inlet openings to an outlet opening. The shuttle valve has a plug that is forced by gas pressure entering the second inlet opening, to move to and seal against a first sealing surface, thereby forming a passageway between the second inlet opening and the outlet opening. The plug is forced by gas entering the first inlet opening, to move to and seal against a second sealing surface, thereby forming a passageway between the first inlet opening and the outlet opening.