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Impedance measurement

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Impedance measurement is an additional module of our EcmWin software. It only works with the corresponding potentiostat and external or built-in additional hardware. As in other function modules, we also distinguish between automatic and manual operation here.

In manual mode, the desired frequency can be entered. The sine wave signals for current and voltage, the impedance value, and the phase shift are displayed on the screen. If the measured values are valid, a switch is enabled to accept the measurement point. When the user presses this switch, the current measuring point is saved with the frequency, phase, U, I, Z amount, real and imaginary parts of the impedance. In addition, the measuring point is entered into the locus curve graph.

Advantages of this measuring principle:

In automatic mode, a file with preset frequencies is loaded and processed. The program sets the frequencies, measures potential and current, displays the values, and calculates the desired quantities. Then the next frequency value is set.

  • All measurement processes are displayed transparently
  • If certain measurement points (frequencies) need to be examined more closely, they can be reset and analyzed again in manual mode
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