A method for controlling a device using a shape-memory alloy wire is disclosed. The method includes determining an ontime for the shape-memory alloy wire based on a target volume to be pumped by a pump plunger, determining the temperature of the shape-memory alloy wire and adjusting the ontime based on the temperature of the shape-memory alloy wire.

A method for controlling a device using a shape-memory alloy wire is disclosed. The method includes determining an ontime for the shape-memory alloy wire based on a target volume to be pumped by a pump plunger, determining the temperature of the shape-memory alloy wire and adjusting the ontime based on the temperature of the shape-memory alloy wire.

A system for controlling selection and distribution of a product in a product dispensing system. The system includes a user interface for prompting a selection and selecting the product, a machine control processor in communication with the user interface, a power distribution module connected to the machine control processor, and a power supply unit for supplying power to the system through the power distribution module.

A system for controlling selection and distribution of a product in a product dispensing system. The system includes a user interface for prompting a selection and selecting the product, a machine control processor in communication with the user interface, a power distribution module connected to the machine control processor, and a power supply unit for supplying power to the system through the power distribution module.

A flow sensor includes a fluid chamber configured to receive a fluid. A diaphragm assembly is configured to be displaced whenever the fluid within the fluid chamber is displaced. A transducer assembly is configured to monitor the displacement of the diaphragm assembly and generate a signal based, at least in part, upon the quantity of fluid displaced within the fluid chamber.

A flow sensor includes a fluid chamber configured to receive a fluid. A diaphragm assembly is configured to be displaced whenever the fluid within the fluid chamber is displaced. A transducer assembly is configured to monitor the displacement of the diaphragm assembly and generate a signal based, at least in part, upon the quantity of fluid displaced within the fluid chamber.

A system for controlling selection and distribution of a product in a product dispensing system. The system includes a user interface for prompting a selection and selecting the product, a machine control processor in communication with the user interface, a power distribution module connected to the machine control processor, and a power supply unit for supplying power to the system through the power distribution module.

A system for controlling selection and distribution of a product in a product dispensing system. The system includes a user interface for prompting a selection and selecting the product, a machine control processor in communication with the user interface, a power distribution module connected to the machine control processor, and a power supply unit for supplying power to the system through the power distribution module.

An integrated capacitive flowmeter for an infusion pump is disclosed. A conductive plate is attached to a hammer element that moves according to a cam motion in a pumping mechanism of the pump to periodically compress an flexible infusion line loaded in the pumping mechanism. A processor measures a first capacitance between the conductive plate coupled to the hammer element and a conductor opposite the flexible infusion line when the flexible infusion line is loaded between the conductive plate and the conductor in the pumping mechanism. A volume of the fluid within the flexible infusion line during the filling phase is then determined based on the measured capacitance, and a flow rate determined based on the determined volume and a cycle speed of the pump. The speed of the pump can then be adjusted based on a difference between the determined flow rate and a programmed flow rate.