Abstract: An exciter associated with a mass flow primary comprises a rigid plate comprising a base, two outer struts, and an inner strut; at least one electromagnet formed over the inner strut; a protection circuit associated with the electromagnet; and an exciter circuit configured to induce a current in said electromagnet in order to cause vibration of said exciter.

Abstract: The present invention relates to systems that allow users to observe the operation of pool skimmers. In some embodiments, the system includes a flow sensor system, which may be located in a ring above the skimmer basket. The flow sensor system may include, for example a microphone or a paddle wheel. Optionally, the system may further include a remote computer (e.g., smart phone/tablet computer) that receives the inputs measured by the flow sensor system and displays on its display screen alerts based on the inputs (e.g., to notify the user to clean the skimmer basket or backwash the filter).

Abstract: The following disclosure relates to a flow rate measuring device and method capable of correcting a gradient. More particularly, the following disclosure relates to a flow rate measuring device and method capable of correcting a gradient that may measure a flow rate having a minimized measurement error by including a sensor unit provided on a bottom surface of an inner portion of a fuel tank in order to accurately measure a flow rate value remaining in the fuel tank to obtain distance information between the bottom surface of the fuel tank and an oil surface and gradient information of the fuel tank itself.

Abstract: A vortex flowmeter may utilize a ring-shaped bluff body as the vortex generator or shedder. The ring shape and size of the vortex ring generator may be optimized to produce linear and stable toroidal vortex outputs that may outperform the conventional shedder bar. In comparison to the conventional vortex shedder bar, the ring may have a slimmer configuration and a higher K-factor, and hence, a higher resolution.

Abstract: A measuring tube for a flow measuring device, wherein the measuring tube has a measuring tube axis A and a measuring tube wall. The measuring tube has a branch with a branch axis B and a wall of the branch, wherein the wall of the branch is arranged on the measuring tube wall, and the wall of the branch is connected with the measuring tube wall by a welded joint. In the transitional region between the wall of the branch and the measuring tube wall there is a specially embodied thickening of the material, which is either part of the wall of the branch or part of the measuring tube wall.

Abstract: An assembly procedure for an electrode anchor, and a magnetic-induction flow meter, particularly for high pressure applications with medium pressures above 5.1 MPa (51 bar), having a measuring tube on which a multi-part electrode anchor for securing a measuring electrode is arranged. Included are: a) a coupling fitting, which is materially bonded to the measuring tube wherein the coupling fitting comprises a groove, or forms a groove together with the measuring tube; and b) a coupling insert for guiding and/or securing the measuring electrode the coupling insert being connected to the coupling fitting by way of a coupling. The coupling insert comprises anchoring wings which engage in the groove by a partial rotation and thereby effect the coupling.

Abstract: A system is provided with an ultrasonic flow meter. The ultrasonic flow meter includes a first ultrasonic transducer disposed about a fluid flow path, and a pressure balancing system configured to pressure balance the first ultrasonic transducer relative to a fluid flow along the fluid flow path.

Abstract: An agricultural product flow sensor and a flow sensor system for delivery tubes in an air seeder is provided. The flow sensor can include a particulate material sensor for sensing agricultural product passing through a delivery tub, a radio node for transmitting and receiving wireless signals and a wireless power source. The sensor system can use the flow sensors by attaching the flow sensors inline with delivery tubes and near a working tool. The flow sensors can monitor the flow of agricultural product through the delivery tube and transmit flow information to a person operating the air seeder.

Abstract: The disclosed embodiments include a combination absolute pressure and differential pressure transducer that includes at least a first cavity and a second cavity, at least a first pressure port and a second pressure port, a first isolation membrane exposing the first cavity to a first fluid pressure applied to the first pressure port, a second isolation membrane exposing the second cavity to a second fluid pressure applied to the second pressure port, at least one absolute pressure sense element exposed to absolute pressure in one of the first cavity and the second cavity, and at least one differential pressure sense element exposed to differential pressure between two of the first cavity and the second cavity.

Abstract: A deposition rate measuring apparatus, including a crystal sensor facing a specific deposition source among a plurality of deposition sources in a deposition apparatus; a deposition-preventing bracket in a front portion of the crystal sensor, the deposition-preventing bracket having an opening that assists inflow of a specific deposition material, the deposition-preventing bracket extending from the opening, and the deposition-preventing bracket surrounding the crystal sensor to prevent interference due to at least one deposition material from at least one adjacent deposition source adjacent to the specific deposition source; and one or more cover portions spaced apart from the opening inward of the deposition-preventing bracket by a predetermined length.

Abstract: A metering apparatus for determining a characteristic of a fluid, such as the volumetric flow rate, flowing through a non-linear section of a pipe is disclosed having a first strain gauge mountable to the non-linear section of the pipe offset from the bending neutral axis of the non-linear section of the pipe, to detect a bending force on the non-linear section of the pipe induced by the inertia of the fluid flowing through the pipe. A second strain gauge is mountable to the pipe disposed on the bending neutral axis of the non-linear section of the pipe, to detect at least one of the hoop strains, longitudinal strains and radial strains imparted on the pipe by the pressure of the fluid flowing through the pipe. A controller is configured to determine the mass flow rate of fluid flowing through the pipe based on the bending force determined by the first strain gauge and the at least one of the hoop strains, longitudinal strains and radial strains determined by the second strain gauge.

Abstract: A transit time differential acoustic flowmeter having acoustic transducers which are acoustically coupled to the fluid flowing in a flow tube through the wall of the flow tube itself, in which the flow tube is demountable from the flowmeter and can be disconnected from the external circuit delivering and carrying away the fluid the flow of which is to be detected.

Abstract: A pressure sensing element includes a sensing sub-element disposed on a diaphragm, the element including a shield disposed over the sub-element and configured to substantially eliminate influence of external charge on the sub-element during operation. A method of fabrication and a pressure sensor making use of the pressure sensing element are disclosed.

Abstract: An ultrasonic flow meter device comprises a fluid passage forming section including a measurement fluid passage, and an opening facing a bottom surface of the measurement fluid passage; a pair of ultrasonic transducers which transmit and receive an ultrasonic wave via the opening; a partition plate which partitions the measurement fluid passage; and an identification section provided on an end surface of the partition plate and used to identify an obverse surface and a reverse surface of the partition plate.

Abstract: To suppress the generation of bubbles of gas dissolved in a fluid, a flow evaluating portion compares a measured flow rate value with a preset reference flow rate value and determines whether a fluid is flowing through a measurement tube. When the flow evaluating portion determines that the fluid is not flowing through the measurement tube, a magnetic excitation controlling portion imposes a limitation so that a magnetic excitation current reduces to an electric current value less than a magnetic excitation current obtained in normal measurement. When the flow evaluating portion determines that the fluid is flowing through the measurement tube, the magnetic excitation controlling portion releases the limitation on the magnetic excitation current.

Abstract: A multiphase flowmeter includes a first flow quantity measurer configured to transmit and receive a first measurement signal, the first flow quantity measurer being disposed on an outside wall of a vertical pipe line, a second flow quantity measurer configured to transmit and receive a second measurement signal, the second flow quantity measurer being disposed on an outside wall of a horizontal pipe line which is connected to the vertical pipeline, and a flow quantity parameter calculator configured to receive the first measurement signal from the first flow quantity measurer and the second measurement signal from the second flow quantity measurer, the flow quantity parameter calculating a flow quantity parameter in accordance with the first measurement signal and the second measurement signal.

Abstract: A measuring transducer comprises a measuring tube having an inlet-side tube end and an outlet-side tube end, a tube wall having a predetermined wall thickness and a lumen surrounded by the tube wall and extending between the first and second tube end, a support element, which with a support end is mechanically connected with the tube end and with a support end is mechanically connected with the tube end, as well as, laterally spaced from the measuring tube, a support element, which with a support end is mechanically coupled with the support end and with a support end is mechanically coupled with the support end. The measuring tube is adapted to guide a flowing medium in its lumen and caused to oscillate about a static resting position for producing Coriolis forces. An oscillation exciter as well as at least one oscillation sensor.

Abstract: An example exercise mat is disclosed. The exercise mat comprises at least one sensor to detect an article on the mat and obtain a force measurement exerted by the article through a movement; and a communications unit to communicatively connect the mat to a computing device and provide the force measurement to the computing device. The computing device performs a plurality of calculations based on the force measurement.

Abstract: A fluid sensing device includes an outer body, an inner body coupled to the outer body by one or more inner body support struts and extending at least partially out from the outer body, and an aft body disposed at least partially within the outer body at a location aft of the inner body, the aft body being coupled to the outer body by one or more aft body support struts. The inner body includes a hollow interior for housing one or more inner body sensors, and the aft body houses one or more aft body sensors. The fluid sensing device can measure one or more parameters of fluid flow at high angularity, such as total temperature and total pressure, locally and simultaneously, allowing additional fluid parameters, such as local entropy, to be calculated.

Abstract: A device, method, and system are provided for monitoring the delivery of fluids through a drip chamber. The device includes an electromagnetic radiation (EMR) source and an EMR detector. A device body is employed to position the source and detector about the drip chamber so that the source and detector define an optical path across the drip chamber. A processor device is employed to detect fluid drops from differences between detector signal values separated by a lag time. The flow rate is determined from a drip factor and the detection of multiple drops. In the context of delivering intravenous (IV) fluids, a battery powered handheld monitoring device that includes the source, detector, device body, and processor device may be affixed to a drip chamber included in an infusion set. The device includes a user interface, including buttons, a display, and an audio speaker, for the input and output of information.