A method is provided for measuring different flow properties of a fluid. The method includes (a) providing a nanowire, the resistance of the nanowire varying based on temperature changes of the nanowire that reflect values of the different flow properties of the fluid when the nanowire is operated in different modes of operation respectively, such that the nanowire measures different flow properties when operated in different modes of operation respectively, and (b) alternating the nanowire between different modes of operation, measuring different flow properties of the fluid during the different modes of operation, respectively, and using the measurements of one of the flow properties to correct the measurements of another flow property. Other applications are also described.

A method is provided for measuring different flow properties of a fluid. The method includes (a) providing a nanowire, the resistance of the nanowire varying based on temperature changes of the nanowire that reflect values of the different flow properties of the fluid when the nanowire is operated in different modes of operation respectively, such that the nanowire measures different flow properties when operated in different modes of operation respectively, and (b) alternating the nanowire between different modes of operation, measuring different flow properties of the fluid during the different modes of operation, respectively, and using the measurements of one of the flow properties to correct the measurements of another flow property. Other applications are also described.

Various embodiments of a spray measurement system having a jig device that allows measuring spray output of one or more spray nozzles and determine spray distribution patterns of the spray nozzles are disclosed.

Various embodiments of a spray measurement system having a jig device that allows measuring spray output of one or more spray nozzles and determine spray distribution patterns of the spray nozzles are disclosed.

A milking system for milking a dairy animal includes a milking cup having a first milk outflow opening, a measuring chamber having a milk inlet which is in flow communication with the first milk outflow opening, with a second milk outflow opening to a milk hose, and with a vacuum connection, and a level sensor for measuring a milk level in the measuring chamber. The milking system further includes a controllable valve having an adjustable passage opening, which is provided in or downstream of the second milk outflow opening, and a control unit which is operatively connected to the level sensor and the valve, and which control unit is configured to adjust the passage opening of the valve on the basis of the measured milk level.

A milking system for milking a dairy animal includes a milking cup having a first milk outflow opening, a measuring chamber having a milk inlet which is in flow communication with the first milk outflow opening, with a second milk outflow opening to a milk hose, and with a vacuum connection, and a level sensor for measuring a milk level in the measuring chamber. The milking system further includes a controllable valve having an adjustable passage opening, which is provided in or downstream of the second milk outflow opening, and a control unit which is operatively connected to the level sensor and the valve, and which control unit is configured to adjust the passage opening of the valve on the basis of the measured milk level.

An external metering valve disposed on a gas fuel tank including an outlet rod is provided. The outlet rod includes an outlet orifice at a front end thereof. The external metering valve includes a metering valve and a gas guiding member. The metering valve includes a metering chamber. The gas guiding member includes a communication pipe, a blocking portion on the communication pipe, a discharging channel and an inlet orifice. The gas guiding member has a sealing outlet position and a metering outlet position. At the sealing outlet position, the outlet orifice outputs a gas and stores the gas in the metering chamber. At the metering outlet position, the blocking portion seals the outlet orifice through an airtight ring, and outputs the gas stored in the metering chamber through the inlet orifice and the discharging channel.

An external metering valve disposed on a gas fuel tank including an outlet rod is provided. The outlet rod includes an outlet orifice at a front end thereof. The external metering valve includes a metering valve and a gas guiding member. The metering valve includes a metering chamber. The gas guiding member includes a communication pipe, a blocking portion on the communication pipe, a discharging channel and an inlet orifice. The gas guiding member has a sealing outlet position and a metering outlet position. At the sealing outlet position, the outlet orifice outputs a gas and stores the gas in the metering chamber. At the metering outlet position, the blocking portion seals the outlet orifice through an airtight ring, and outputs the gas stored in the metering chamber through the inlet orifice and the discharging channel.

Described herein are systems and methods for modeling fluid flow. The systems may comprise a plurality of chambers, a plurality of sensors, a pump, a plurality of valves, and a flow limiting operator (FLO). The respective sensor of the plurality of sensors may be configured to sense a respective monitoring parameter associated with the respective chamber. The pump may be configured to move media to or from the respective chamber. The respective valve of the plurality of valves may be configured to control a fluid velocity of the media flowing through the respective chamber. The FLO may be electrically connected to the plurality of sensors, the pump, and the plurality of valves. The FLO may be configured to independently control the respective chamber by manipulating one or more controllable parameters associated with the respective chamber based on the respective monitoring parameter associated with the respective chamber.

A probe assembly configured to selectively restrict fluid flow through an outlet of a closed transfer system. The probe assembly has an elongate probe body with a top end portion, a bottom end portion, an outer wall, and an internal structure defining a fluid chamber extending from the bottom end portion to the top end portion. The fluid chamber has a fluid chamber inlet at the bottom end portion extending through the outer wall into the fluid chamber and a fluid chamber outlet at the top end portion extending from the fluid chamber through the outer wall. A probe tip with a cylindrical bore is configured to engage the top end portion of the elongate probe body and a probe tip outlet is configured to be in fluid communication with the fluid chamber outlet. A rotating head located circumjacent to the probe tip and adjacent to the probe tip outlet is configured to rotate about the probe tip. The rotating head having an inner surface, an outer surface, and a vane extending from the inner surface through the outer surface.