Methods for characterizing fluids from a patient. A time series of images of a conduit are received, and a conduit image region in the images is identified. A flow type of the fluids passing through the conduit may be classified as one of air, laminar liquid, and turbulent liquid by evaluating an air-liquid boundary of the fluid. A volumetric flow rate of the fluids in the conduit is estimated. The volumetric flow rate may be based on the classified flow type. A concentration of a blood component of the fluids passing through the conduit may be estimated based on the images. A proportion of the fluid that is blood may also be determined, and a volume of blood that has passed through the conduit within a predetermined period of time may be estimated based on the estimated total volumetric flow rate and the determined proportion.

Methods for characterizing fluids from a patient. A time series of images of a conduit are received, and a conduit image region in the images is identified. A flow type of the fluids passing through the conduit may be classified as one of air, laminar liquid, and turbulent liquid by evaluating an air-liquid boundary of the fluid. A volumetric flow rate of the fluids in the conduit is estimated. The volumetric flow rate may be based on the classified flow type. A concentration of a blood component of the fluids passing through the conduit may be estimated based on the images. A proportion of the fluid that is blood may also be determined, and a volume of blood that has passed through the conduit within a predetermined period of time may be estimated based on the estimated total volumetric flow rate and the determined proportion.

A cured in place pipe system having a sensor has a cured in place pipe having a seam, a sensor incorporated into the seam, the sensor for transmitting a signal indicative of a condition within the cured in place pipe, and a communications device positioned remote from the sensor and capable of receiving the signal from the sensor.

A method for filling a target volume into a container by means of a measuring arrangement is described and illustrated. The measuring arrangement includes at least one flowmeter for measuring the flow of a medium flowing into the container, at least one actuator and at least one control unit. The flowmeter includes a computing unit. The filling process can be started and ended by actuating the actuator. The control unit is connected to the actuator and the flowmeter via a communication system. The control unit is set up in such a way that, during operation, it sends a control command to the actuator to end the filling process when a defined limit value of the fill volume, which correlates with the target volume, is reached.

The application discloses a signal generation circuit (100), configured to generate a transmission signal to trigger a first transducer to generate a first transducer output signal; the signal generation circuit includes: a signal generation unit (106), configured to generate an output signal; and a transmitter (104), coupled to the signal generation unit, wherein the transmitter is configured to convert the output signal into the transmission signal; wherein the transmission signal includes a data signal and a compensation signal, the data signal includes at least one first pulse wave, the compensation signal includes at least one second pulse wave, the first pulse wave and the second pulse wave have opposite phases, and the first pulse wave has an other waveform parameter different from an other waveform parameter of the second pulse wave. The present application further provides a related chip, a flow meter and a method.

Disclosed is an optical fiber flow velocity measuring apparatus and method integrating high and low ranges. The apparatus includes an integrated optical fiber flow velocity sensor, the integrated optical fiber flow velocity sensor includes a sensor body; a fluid channel, a fluid through hole, a full-pressure channel, a static-pressure channel, a low-pressure chamber and a high-pressure chamber are provided inside the sensor body; a first optical fiber sensing element is provided between the low-pressure chamber and the high-pressure chamber; a second optical fiber sensing element is provided in the fluid through hole and is perpendicular to a flow direction of a fluid to be measured; the first optical fiber sensing element and the second optical fiber sensing element are sequentially connected in series through a single-mode optical fiber; both ends of the single-mode optical fiber are connected into a wavelength division multiplexer; a pump light source is connected with the wavelength division multiplexer through a common optical fiber; an optical fiber grating demodulator is connected with the wavelength division multiplexer through a common optical fiber; and a flow velocity arithmetic unit is electrically connected with a optical fiber grating demodulator. It's an object of the present disclosure to solve the problems that the electric circuit is too complicated and that it is not easy to integrate in one apparatus when flow velocity conversion devices based on different principles are integrated.

The present disclosure relates to a method for determining a volumetric and/or mass flow rate of a medium flowing in a tube, wherein a density and/or a viscosity of the fluid is/are determined using a MEMS sensor chip, wherein the medium flowing in the tube at least partially flows through a measuring channel of the MEMS sensor chip to determine the density and/or the viscosity of the fluid, and wherein the volumetric and/or mass flow rate of the medium is determined regardless of the medium based on a detected pressure drop over the measuring channel of the MEMS sensor chip and the density and/or viscosity determined by the MEMS sensor.

The present disclosure relates to a method for determining a volumetric and/or mass flow rate of a medium flowing in a tube, wherein a density and/or a viscosity of the fluid is/are determined using a MEMS sensor chip, wherein the medium flowing in the tube at least partially flows through a measuring channel of the MEMS sensor chip to determine the density and/or the viscosity of the fluid, and wherein the volumetric and/or mass flow rate of the medium is determined regardless of the medium based on a detected pressure drop over the measuring channel of the MEMS sensor chip and the density and/or viscosity determined by the MEMS sensor.

A liquid consumption monitoring device for monitoring and encouraging consumption of a liquid includes a cup and a lid, which is selectively engageable to the cup to close a top thereof. The user is positioned to tilt the cup to dispense a liquid from the cup, through an opening positioned in the lid, into a mouth of the user. A flow meter engaged to the cup, proximate to the opening, measures a volume of the liquid passing through the opening. An interface is engaged to at least one of the cup and the lid and is operationally engaged to the flow meter. The interface receives a signal from the flow meter when the liquid passes through the opening. The interface selectively actuates at least one of a speaker and a bulb, upon receipt of the signal from the flow meter, to provide a sensory reward to the user.

A liquid consumption monitoring device for monitoring and encouraging consumption of a liquid includes a cup and a lid, which is selectively engageable to the cup to close a top thereof. The user is positioned to tilt the cup to dispense a liquid from the cup, through an opening positioned in the lid, into a mouth of the user. A flow meter engaged to the cup, proximate to the opening, measures a volume of the liquid passing through the opening. An interface is engaged to at least one of the cup and the lid and is operationally engaged to the flow meter. The interface receives a signal from the flow meter when the liquid passes through the opening. The interface selectively actuates at least one of a speaker and a bulb, upon receipt of the signal from the flow meter, to provide a sensory reward to the user.