Devices, systems, and methods for increasing the accuracy of ultrasound power delivered to and received from a patient by an HIFU system having exchangeable components. The system components include one or more memory devices in which calibration parameters for the component are stored, such as when the component is manufactured. During operation of the system, the calibration parameter data is received from the memory and used by the system to adjust the output power of one or more ultrasound sources and/or received signal levels based on the received calibration parameters. The calibration parameters may include data relating to impedance, sensitivity, transfer functions, linearity, or other data that could affect the power delivered to a patient by the component.
