A method produces a void fraction (VF) error curve which correlates an apparent VF with the actual VF of a multi-phase flow, the method comprising (a) using a device to measure a property of the multi-phase flow from which an apparent VF may be calculated; (b) calculating the apparent VF using the measured property from the device; (c) determining the actual VF of the multiphase flow using a radiometric densitometer; (d) using the values from steps (b) and (c) to calculate the VF error; (e) repeating steps (b) through (d) for all expected flow conditions to generate a VF error curve.

A magnetic flowmeter has a conduit, an electrical coil, and a coil driver configured to energize the electrical coil with a periodic electrical signal and generate a magnetic field in the conduit that periodically reverses polarity. Electrodes are arranged to detect a voltage generated by flow of the conductive fluid through the conduit and through the magnetic field. A measurement system receives electrical signals from the electrodes and determines a flow rate of the conductive fluid using the electrical signals. The flowmeter has a meter verification system that includes a sensor configured to detect the magnetic field generated by electrical coil when it is energized by the coil driver. The meter verification system is configured to determine an amplitude of the periodically changing magnetic field and to use this amplitude to assess the current operational effectiveness of the magnetic flowmeter.

Disclosed is a method for adjusting a position of an aspirator in a sample processing apparatus, the sample processing apparatus comprising the aspirator configured to aspirate a sample or a reagent from a container and a capacitance sensor connected to the aspirator to detect change in capacitance, the method comprising: moving the aspirator above a position adjustment part which is electrically conductive and which is disposed at a predetermined position; obtaining capacitance detected by the capacitance sensor while moving the aspirator; and setting reference position information indicating a reference position of the aspirator based on change in the obtained capacitance.

A volumetric measurement vessel is characterized by a bottom wall having an inverted saddle shape defining a concave trough at its topside, and mounted in a tilted orientation placing the trough at an obliquely inclined angle. An outlet of the vessel is positioned at a lower end of the trough at an angle matching the tilted bottom wall to provide smooth, vortex free draining of the tank body at the outer periphery thereof. The bottom wall is cut as a flat piece of squashed oval shape, and subsequently bent into curved form to create the trough. A circumferential wall of the vessel is cut as a flat piece with a wave-shaped bottom edge, then bent into circular form to align major and minor troughs of the wave shape with opposite ends of the bottom wall's concave trough.

A level sensor assembly (552) for estimating a level of a dielectric powder (412) in a container assembly (544) includes a first electrode member (554) that is coupled to the container assembly (544); a second electrode member (556) that is coupled to the container assembly (544): and a control system (424). The second electrode member (556) is spaced apart from the first electrode member (554) and configured so that powder (512) in the container assembly (544) is positioned at least partly between the electrode members (554) (556). The control system (424) utilizes a capacitance between the electrode members (554) (556) to estimate the level of the powder (512) in the container assembly (544).

Disclosed is an infusion pump which may include a native pumping mechanism to drive fluids through a functionally associated conduit, at least one native sensor to sense a physical characteristic of the fluid within the conduit and computing circuitry having a decalibration test mode to determine whether the infusion pump is decalibrated. The computing circuitry may be adapted to receive output from at least one native sensor during the decalibration test mode.

A flowmeter includes an exciter configured to excite fluid which is a measurement target, a state detector configured to detect a state of the fluid excited by the exciter, a driver configured to supply exciting current for driving the exciter, a first current detector that is disposed between the exciter and the driver, the first current detector being configured to detect the exciting current, and a processor configured to diagnose insulation deterioration of the exciter in accordance with a change of a detection result of the first current detector.

A method and a system of metering flow through a fluid conduit with a fluid obstruction, the method involves: measuring a differential pressure taken between a first conduit position upstream of the fluid obstruction and a second conduit position downstream of the fluid obstruction; calculating a fluid flow rate using the differential pressure measurement; measuring a first static pressure upstream or downstream of the fluid obstruction; measuring a recovered pressure at a recovered pressure location downstream of the fluid obstruction; performing diagnostics based on parameters derived from the differential pressure, the first static pressure; and the measured recovered pressure.

The present invention relates to a flowmeter for monitoring physical parameters of fluid passing through the flowmeter. The flowmeter being installed in a plant and communicatively connected through a gateway device to a server having a virtual model. The flowmeter comprising: a processing unit for computing a first processed data of a physical parameter associated with the fluid measured by the flowmeter. The flowmeter receives a second processed data from the server having the virtual model, wherein the virtual model provides the second processed data by computing the second processed data based on the first processed data and data from at least one sensor provisioned in the plant. The present invention also provides for a system for monitoring physical parameters of fluid passing through a pipe in a plant with the flowmeter.

The present invention relates to a flowmeter for monitoring physical parameters of fluid passing through the flowmeter. The flowmeter being installed in a plant and communicatively connected through a gateway device to a server having a virtual model. The flowmeter comprising: a processing unit for computing a first processed data of a physical parameter associated with the fluid measured by the flowmeter. The flowmeter receives a second processed data from the server having the virtual model, wherein the virtual model provides the second processed data by computing the second processed data based on the first processed data and data from at least one sensor provisioned in the plant. The present invention also provides for a system for monitoring physical parameters of fluid passing through a pipe in a plant with the flowmeter.