Milk meter for measuring a milk flow provided with an inlet the milk flow is supplied to an outlet, a liquid flow path extending from the inlet to the outlet, a stabilization chamber in the liquid flow path and a float therein configured to float on milk. The level of milk in the stabilization chamber depends on the flow rate of the milk flow. At least one sensor device for determining the position of the float in the stabilization chamber for determining the flow rate of the milk flow. The milk meter has an outflow channel and an outflow opening in fluid communication with the outlet via the outflow channel. The sensor device has a first and a second coil which have a fixed distance to each other, and a third coil. The first and second coil and the third coil are displaceable relative to each other.

Devices and methods for simultaneously measuring, in real time: 1) volumetric changes of a mammalian breast due to milk production and output, and 2) breast temperature, are provided. The devices are generally sensors which can be disposed within a wearable garment such as a bra.

An apparatus includes a tube, first and second pairs of electrodes, a reference device, and a processor. The processor determines a speed of a fluid traveling between the first and second pairs of electrodes and determines a reference conductance of the fluid using the reference device. The processor also determines a measured conductance of the fluid using at least one of the first and second pairs of electrodes and determines, based on the reference conductance and the measured conductance, a cross-sectional area of the fluid at an electrode. The processor further adds a correction factor to the determined speed to produce a bulk speed of the fluid. The processor further determines a volumetric flow rate of the fluid based on the bulk speed and the determined area and determines a volume of the fluid based on the determined volumetric flow rate.

A safety valve for a cleaning device for a milking installation for milking milk-providing animals having a pair of block valves, a bleed valve, a sliding hollow piston, and a drive unit that are adjustable between a blocking position in which the blocking valves are closed and the bleed valve is open and a throughput position in which the blocking valves are open and the vent valve is closed.

A safety valve for a cleaning device for a milking installation for milking milk-providing animals having a pair of block valves, a bleed valve, a sliding hollow piston, and a drive unit that are adjustable between a blocking position in which the blocking valves are closed and the bleed valve is open and a throughput position in which the blocking valves are open and the vent valve is closed.

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.

A milking system for milking of a milk animal, including a milking cup for obtaining the milk, the milking cup having a teat space with a first milk outflow opening, and a measuring chamber directly and rigidly connected to the milking cup for at least temporarily containing the obtained milk. The measuring chamber is provided with a milk inflow opening which is in flow communication with the first milk outflow opening, a second milk outflow opening, a vacuum outlet, and a sensor device for measuring a property of the milk in the measuring chamber. The sensor device includes an optical sensor device having a plurality of optical sensor elements, at least one light source, and a control unit which is configured to process sensor signals into values of at least two parameters of the milk in the measuring chamber.

A milking system for milking a dairy animal includes a milking cup to be attached to a teat of the dairy animal and milking the milk, and an electronic component. The electronic component includes a sensor which is arranged in or on the milking cup for measuring a value of a variable related to the milking, a transmitter for transmitting the measured values, and a power supply for supplying the sensor and/or the transmitter with electrical energy. The power supply may include an inductive power supply with a first coil component and a second coil component, where the first coil component and the electronic component are electrically connected to each other, and where the second coil component is electrically directly connectable to an external source of electrical energy. The milking system also includes a fastening means which holds the first coil component and the second coil component together.

A device (1) for determining the mass flow rate of milk turbulently flowing with air in a pipe (2) in pulsed milk slugs comprises sampling a signal from a microphone (8) of the device (1) indicative of sonic signals produced by the milk flow. The sampled signals are read by a microprocessor (15) which applies a Fast Fourier Transform to the sampled signal to produce the frequency domain of the sampled signal. The microprocessor (15) is configured to compute the average energy value of the sampled signal in the frequency bandwidth of 6 kHz to 15 kHz during consecutive monitoring periods. The average energy values are inserted into a calibration equation, which may be a power law equation, a polynomial equation, a logarithmic equation or any other such suitable equation in order to convert the average energy value to a mass flow rate of the milk flowing through the pipe 2 during that predefined monitoring period. The total mass flow of milk flowing through the pipeline (2) during a period from T.sub.1 to T.sub.2 is determined by integrating the determined mass flow rate of the milk from the time T.sub.1 to the time T.sub.2. Disengagement of a milking cluster from the teats of an animal as a result of kick-off during milking is also determined when the monitored signal from the microphone (8) transitions from the signal indicative of milk flowing in pulsed slugs to a continuous relatively high energy noise signal indicative of air being continuously drawn through the pipeline.