Patent ID: 11920571
Assignee: ALFMEIER PRäZISION SE
Field: Measurement (Instruments)
Classification: CPC F  B  G | IPC B  F  G

Claim 0:
1. A circuit arrangement to control at least one valve including at least one actuator with at least one positioning element adjustable between at least one first position and a second position, the circuit arrangement comprising:
at least one driver unit to activate the actuator and a control unit to operate the driver unit; and
at least one air mass measuring device to measure an air mass flowing through the valve, the control unit being configured for processing an output signal of the air mass measuring device,
wherein the actuator includes one SMA element, and the SMA element is an SMA wire,
wherein the at least one air mass measuring device includes at least one measuring wire, the SMA wire being one of the at least one measuring wires.