code: def measure_board_rms(control_board, n_samples=10, sampling_ms=10,
                        delay_between_samples_ms=0):
      '''
      Read RMS voltage samples from control board high-voltage feedback circuit.
      '''
      try:
          results = control_board.measure_impedance(n_samples, sampling_ms,
                                                    delay_between_samples_ms,
                                                    True, True, [])
      except RuntimeError:
          # `RuntimeError` may be raised if, for example, current limit was
          # reached during measurement.  In such cases, return an empty frame.
          logger.warning('Error encountered during high-voltage RMS '
                         'measurement.', exc_info=True)
          data = pd.DataFrame(None, columns=['board measured V',
                                             'divider resistor index'])
      else:
          data = pd.DataFrame({'board measured V': results.V_hv})
          data['divider resistor index'] = results.hv_resistor
      return datf measure_board_rms(control_board, n_samples=10, sampling_ms=10,
                        delay_between_samples_ms=0):
      '''
      Read RMS voltage samples from control board high-voltage feedback circuit.
      '''
      try:
          results = control_board.measure_impedance(n_samples, sampling_ms,
                                                    delay_between_samples_ms,
                                                    True, True, [])
      except RuntimeError:
          # `RuntimeError` may be raised if, for example, current limit was
          # reached during measurement.  In such cases, return an empty frame.
          logger.warning('Error encountered during high-voltage RMS '
                         'measurement.', exc_info=True)
          data = pd.DataFrame(None, columns=['board measured V',
                                             'divider resistor index'])
      else:
          data = pd.DataFrame({'board measured V': results.V_hv})
          data['divider resistor index'] = results.hv_resistor
      return data
docs: Read RMS voltage samples from control board high-voltage feedback circuit.