Patent ID: 11949297
Assignee: COVIDIEN LP
Field: Medical technology (Instruments)
Classification: CPC A  H  G | IPC A  G  H

Claim 4:
5. A measurement circuit configured to provide a torque reading to a motion controller, the measurement circuit comprising:
an offset controller configured to read a temperature signal and to generate an offset voltage in response to reading the temperature signal;
an amplifier configured to read a differential voltage from a differential sensor and to receive the offset voltage from the offset controller, to add the offset voltage to the differential voltage after applying an analog gain to the differential voltage to generate an adjusted voltage, and to transmit the adjusted voltage; and
an analog-to-digital converter configured to receive the adjusted voltage from the amplifier, to convert the adjusted voltage to a digital torque signal indicative of the adjusted voltage which is corrected for temperature drift, and to transmit the torque signal.