Abstract: Electronics with a DCC adaptive filter for attenuating noise in a feedback path of a flow controller are provided. The electronics include a signal processor configured to receive a flow signal from a flow sensor, the flow sensor is configured to measure a flow rate of a pulsating fluid flow, receive a constant reference signal, and generate a flow rate signal using the constant reference signal and the flow signal. The electronics also include a controller communicatively coupled to the signal processor, which is configured to generate a flow rate control signal using the flow rate signal. The electronics additionally include a signal generator communicatively coupled to the controller. The signal generator is configured to receive the flow rate control signal, generate a valve signal based on the flow rate control signal, and provide the valve signal to a valve to control the flow rate of the pulsating flow.

Abstract: An electronics with cascaded adaptive filters for attenuating noise in a feedback path of a flow controller is provided. The electronics includes a signal processor configured to receive a flow signal from a flow sensor, the flow sensor being configured to measure a flow rate of the pulsating flow, generate a noise reference signal from the flow signal and generate a flow rate signal using the noise reference signal. The electronics also includes a controller communicatively coupled to the signal processor, the controller being configured to generate a flow rate control signal using the flow rate signal, and a signal generator communicatively coupled to the controller. The signal generator is configured to receive the flow rate control signal, generate a valve signal based on the flow rate control signal, and provide the valve signal to a valve to control the flow rate of the pulsating flow.

Abstract: An electronics for active cancellation of a pulsating flow with a flow signal noise reference. The electronics includes a signal processor configured to receive a flow signal from a flow sensor that is configured to measure a flow rate of the pulsating flow, generate a flow rate signal and a noise reference signal from the flow signal, and generate a cancelling signal from the noise reference signal. The electronics also includes a controller coupled to the signal processor and configured to determine a flow rate control signal. The electronics includes a signal generator communicatively coupled to the signal processor and the controller and configured to receive the flow rate control signal, generate a valve signal based on the flow rate control signal and the cancelling signal, and provide the valve signal to a valve to control flow rate and attenuate pulses of the pulsating flow of the fluid.

Abstract: An electronics for active cancellation of a pulsating flow with a source noise reference. The electronics includes a signal processor configured to receive a noise source signal and a flow signal. The signal processor is also configured to generate a cancelling signal based on the noise source signal and the flow signal. A controller is communicatively coupled to the signal processor, and configured to determine a flow rate control signal for controlling the flow rate of the pulsating flow. A signal generator coupled to the signal processor and the controller is configured to receive the flow rate control signal, generate a valve signal based on the flow rate control signal and the cancelling signal, and provide the valve signal to a valve to control the flow rate and attenuate the one or more pulses of the pulsating flow.

Abstract: An electronics (100, 400) with cascaded adaptive filters for attenuating noise in a feedback path of a flow controller is provided. The electronics (100, 400) includes a signal processor (110, 410) configured to receive a flow signal (220a) from a flow sensor (220), the flow sensor (220) being configured to measure a flow rate of the pulsating flow, generate a noise reference signal (110b, 410b) from the flow signal (220a) and generate a flow rate signal (110a, 410a) using the noise reference signal (110b, 410b). The electronics (100, 400) also includes a controller (120) communicatively coupled to the signal processor (110), the controller (120) being configured to generate a flow rate control signal (120a) using the flow rate signal (110a, 410a), and a signal generator (130) communicatively coupled to the controller (120).

Abstract: An electronics (100) with a DCC adaptive filter (112) for attenuating noise in a feedback path of a flow controller is provided. The electronics (100) includes a signal processor (110) configured to receive a flow signal (220a) from a flow sensor (220), the flow sensor (220) is configured to measure a flow rate of a pulsating fluid flow, receive a constant reference signal (112c), and generate a flow rate signal (110a) using the constant reference signal (112c) and the flow signal (220a). The electronics (100) also includes a controller (120) communicatively coupled to the signal processor (110), which is configured to generate a flow rate control signal (120a) using the flow rate signal (110a). The electronics (100) additionally includes a signal generator (130) communicatively coupled to the controller (120).

Abstract: An electronics for active cancellation of a pulsating flow with a flow signal noise reference. The electronics includes a signal processor configured to receive a flow signal from a flow sensor that is configured to measure a flow rate of the pulsating flow, generate a flow rate signal and a noise reference signal from the flow signal, and generate a cancelling signal from the noise reference signal. The electronics also includes a controller coupled to the signal processor and configured to determine a flow rate control signal. The electronics includes a signal generator communicatively coupled to the signal processor and the controller and configured to receive the flow rate control signal, generate a valve signal based on the flow rate control signal and the cancelling signal, and provide the valve signal to a valve to control flow rate and attenuate pulses of the pulsating flow of the fluid.

Abstract: An electronics for active cancellation of a pulsating flow with a source noise reference. The electronics includes a signal processor configured to receive a noise source signal and a flow signal The signal processor is also configured to generate a cancelling signal based on the noise source signal and the flow signal. A controller is communicatively coupled to the signal processor and configured to determine a flow rate control signal for controlling the flow rate of the pulsating flow A signal generator coupled to the signal processor and the controller is configured to receive the flow rate control signal, generate a valve signal based on the flow rate control signal and the cancelling signal, and provide the valve signal to a valve to control the flow rate and attenuate the one or more pulses of the pulsating flow.