CPC G01R 31/2829 (2013.01) [G01N 27/4163 (2013.01); G01N 33/0057 (2013.01); G01R 27/02 (2013.01); G01R 27/16 (2013.01); G01R 35/005 (2013.01); G01N 27/122 (2013.01)] | 15 Claims |
1. A test circuit for an electronic sensor, the test circuit comprising:
a load resistance connectable in series with the electronic sensor to form a series resistance of the load resistance and an internal impedance of the electronic sensor;
an excitation circuit configured to apply a predetermined voltage to a circuit element; and
a measurement circuit configured to:
initiate applying the predetermined voltage to the series resistance and determining the series resistance;
initiate applying the predetermined voltage to the load resistance and determining the load resistance; and
calculate the internal impedance of the electronic sensor using a difference of the determined series resistance and the load resistance, and provide the calculated internal impedance to a user or process.
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