A venturi flowmeter for connection to single-use containers is provided. The venturi flowmeter includes a meter body formed of a polymer and configured to allow fluid flow therethrough. A first annular diaphragm is mounted proximate an inner surface of the meter body has a first internal diameter. A second annular diaphragm is mounted proximate an inner surface of the meter body has a second internal diameter different from the first internal diameter.

A venturi flowmeter for connection to single-use containers is provided. The venturi flowmeter includes a meter body formed of a polymer and configured to allow fluid flow therethrough. A first annular diaphragm is mounted proximate an inner surface of the meter body has a first internal diameter. A second annular diaphragm is mounted proximate an inner surface of the meter body has a second internal diameter different from the first internal diameter.

A tube measures the differential pressure of a medium flowing through the tube. An insertion element for a tube as well as a method for assembling the insertion element and the tube are also provided.

A tube measures the differential pressure of a medium flowing through the tube. An insertion element for a tube as well as a method for assembling the insertion element and the tube are also provided.

The proposed solution concerns in particular an engine, with at least two valve devices for controlling bleed air in dependence on an operating state of the engine, the at least two valve devices in each case being adjustable between an open position and a closed position. A flow space is provided for at least one fluid flow occurring in the flow space in dependence on a position of the at least two valve devices. Arranged in the flow space is at least one fluid sensor, by means of which at least one position of at least one of the at least two valve devices can be determined on the basis of the fluid in the flow space.

Multiphase flowmeters and related methods are disclosed herein. An example multiphase flowmeter includes a microwave transmitter to transmit a signal through a fluid, a microwave receiver to determine at least one of attenuation or phase shift, a sensor to obtain at least one of pressure, temperature, or differential pressure, an intermediate-output generator to determine intermediate flow parameters, and a flow rate generator to determine a flow rate for respective phases in the fluid, and a model selector to select at least one of a physics model or a machine learning model for determining the intermediate flow parameters or the flow rates, the physics model to determine a first value of the intermediate flow parameters or the flow rates, and, in response to an error not being less than a threshold, the machine learning model to determine a second value of the intermediate flow parameters or the flow rates.

Multiphase flowmeters and related methods are disclosed herein. An example multiphase flowmeter includes a microwave transmitter to transmit a signal through a fluid, a microwave receiver to determine at least one of attenuation or phase shift, a sensor to obtain at least one of pressure, temperature, or differential pressure, an intermediate-output generator to determine intermediate flow parameters, and a flow rate generator to determine a flow rate for respective phases in the fluid, and a model selector to select at least one of a physics model or a machine learning model for determining the intermediate flow parameters or the flow rates, the physics model to determine a first value of the intermediate flow parameters or the flow rates, and, in response to an error not being less than a threshold, the machine learning model to determine a second value of the intermediate flow parameters or the flow rates.

A multivariable transmitter is provided for measuring multiple process fluid variables. The multivariable transmitter includes a metal housing constructed from a material suitable for exposure to a corrosive material, such as seawater. A differential pressure sensor is disposed within the metal housing. A line pressure sensor is also disposed within the metal housing. Measurement circuitry is operably coupled to the differential pressure sensor and the line pressure sensor to provide differential pressure and line pressure outputs. A temperature probe has a sheath constructed from a material suitable for exposure to the corrosive material. The temperature probe is electrically coupled to circuitry within the metal housing and is physically coupled to the metal housing via a high-pressure coupling.

An electronic utility gas meter using MEMS thermal mass flow sensor to meter gas custody transfer and MEMS gas thermal property sensor to compensate the metering values due to gas composition variations is disclosed in the present invention. The meter is designed to have a MEMS mass flow sensor to meter the city utility gas consumption independent of environmental temperature and pressure while a MEMS gas thermal property or dual gas thermal property sensors to compensate the tariff due to the gas composition variations for compliance with the current regulation requirements of tariff and remove the major concerns for the wide deployment of the thermal mass MEMS utility gas meters.

An electronic utility gas meter using MEMS thermal mass flow sensor to meter gas custody transfer and MEMS gas thermal property sensor to compensate the metering values due to gas composition variations is disclosed in the present invention. The meter is designed to have a MEMS mass flow sensor to meter the city utility gas consumption independent of environmental temperature and pressure while a MEMS gas thermal property or dual gas thermal property sensors to compensate the tariff due to the gas composition variations for compliance with the current regulation requirements of tariff and remove the major concerns for the wide deployment of the thermal mass MEMS utility gas meters.