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Kelvin Control 07
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Kelvin Control 07

Features and Specifications

Amplifier

  • Sensitivity: < 0.1mV
  • Current sensitive preamplifier
  • Low noise phase sensitive detector (Lock in amplifier)
  • Variable gain
  • Tuneable band pass filter
  • Overload indicator
  • Signal monitor output
  • Automatic signal- phase correction
  • No frequency and phase tuning required



Signal processing

  • Automatic or manual compensation of CPD signal
  • Calibrated CPD output
  • Continuous recording of work function changes
  • Resolution < 1mV
  • Dynamic range 10 V
  • Variable time constant
  • Null indicator
  • Precision offset potential adjustment
  • Compensation, simulation and calibration of
    work function changes


Oscillator

  • Self maintaining oscillator circuit
  • Automatic lock to resonance frequency of Kelvin Probe
  • No frequency and phase tuning required
  • Variable oscillation amplitude from 0.1 to 2 mm
  • Constant signal- phase relation
  • Piezoelectric fine adjustment at the Distance between sample and reference electrode in the range of ± 0,2 mm