A flow meter for determining the flow velocity of a fluid in a media line, having a sensor base having a bluff body and a sensor body, an electronics unit and a signal interface. The bluff body is arranged substantially upstream of the sensor body in the direction of flow. The sensor body has a carrier part and a substrate arrangement having at least one ceramic substrate, and an anemometer sensor unit and a vortex meter sensor unit are arranged on the substrate arrangement.

A flow meter for determining the flow velocity of a fluid in a media line, having a sensor base having a bluff body and a sensor body, an electronics unit and a signal interface. The bluff body is arranged substantially upstream of the sensor body in the direction of flow. The sensor body has a carrier part and a substrate arrangement having at least one ceramic substrate, and an anemometer sensor unit and a vortex meter sensor unit are arranged on the substrate arrangement.

A menu navigation engine that enables user configuration of a vortex flowmeter. The vortex flowmeter includes a memory device and a processor, among other hardware components. Software instructions stored on the memory device and executable by the processor implement the menu navigation engine by displaying use case identifiers on the user interface, receiving selections of use case identifiers via the user interface, generating a formatted hierarchical tree of vortex flowmeter configuration nodes associated with the selected use case, and displaying the generated tree on the user interface.

The present disclosure relates to an electronic spirometer that empowers users to quantitatively track and proactively manage respiratory diseases via simple integration with mobile devices, tablets, and computers. In one aspect, patients will be able to connect with their doctors to determine medication dosage and efficacy, avoid environmental triggers, and prevent attacks and exacerbations.

The present disclosure relates to an electronic spirometer that empowers users to quantitatively track and proactively manage respiratory diseases via simple integration with mobile devices, tablets, and computers. In one aspect, patients will be able to connect with their doctors to determine medication dosage and efficacy, avoid environmental triggers, and prevent attacks and exacerbations.

A vortex flowmeter has first and second process connections with a meter inlet and outlet, respectively, therein. The first and second process connections are configured to connect, respectively, to upstream and downstream segments of a fluid pipeline. A fluid conveyance system conveys fluid from the inlet to the outlet and divides the fluid into separate fluid streams that flow through separate passages. Each of the passages has its own vortex metering unit configured to generate and detect vortices in the respective fluid stream. A processing system is configured to calculate a sum of the flow rates through all of the fluid streams.

A vortex flow meter comprises a measuring tube; a bluff body arranged in the measuring tube; a sensor device, having a paddle, a sensor main body and a piezo element, and an electronic operating circuit. The electronic operating circuit has a measuring circuit comprising an operational amplifier and a capacitor. The first capacitor forms a feedback between the output and the measurement input, wherein the reference input can be supplied with a first reference voltage. The measurement circuit has a first switch, wherein the electronic operating circuit is designed to connect the piezo element via the first switch to the measurement input of the operational amplifier and to charge it with a first charging voltage by means of a second switch position. The electronic operating circuit derives an information relating to a state of the piezo element from a discharge process of the piezo element.

The disclosure discloses a swirler-type gas-liquid two-phase flow metering device, mainly including a swirler, a capacitance probe module, a hot-wire probe module, a hub and a data acquisition computer. A flow measurement method using the gas-liquid two-phase flow metering device includes: adjusting, by the swirler, flow patterns of an incoming gas-liquid two-phase flow into a uniform annular flow, measuring gas and liquid phase distribution by the capacitance probe module, and measuring gas and liquid phase flow velocity distribution by the hot-wire probe, and volumetric flow rates of gas, thereby obtaining liquid phases according to flow areas and average flow velocities of the gas and liquid phases. Compared with the existing multiphase flowmeter, the gas-liquid two-phase flow metering device of the disclosure has the advantages of small size, compact structure, small resistance loss, wide measurement range, high measurement accuracy, etc.

The disclosure discloses a swirler-type gas-liquid two-phase flow metering device, mainly including a swirler, a capacitance probe module, a hot-wire probe module, a hub and a data acquisition computer. A flow measurement method using the gas-liquid two-phase flow metering device includes: adjusting, by the swirler, flow patterns of an incoming gas-liquid two-phase flow into a uniform annular flow, measuring gas and liquid phase distribution by the capacitance probe module, and measuring gas and liquid phase flow velocity distribution by the hot-wire probe, and volumetric flow rates of gas, thereby obtaining liquid phases according to flow areas and average flow velocities of the gas and liquid phases. Compared with the existing multiphase flowmeter, the gas-liquid two-phase flow metering device of the disclosure has the advantages of small size, compact structure, small resistance loss, wide measurement range, high measurement accuracy, etc.

Provided is an estimation apparatus comprising an acquisition unit that acquires state data including intensity data of at least one frequency band related to a detection signal detected by a vortex flow meter for a fluid, a state determination estimation unit that estimates a state of the fluid based on the state data acquired by the acquisition unit, a fluid quality estimation unit that estimates, from the intensity data, at least either of a liquid amount or dryness related to the fluid according to the state of the fluid estimated by the state determination estimation unit, and an output unit that outputs at least either of the liquid amount or the dryness estimated by the fluid quality estimation unit.