Online impedance tester circuit and test results

October 08, 2019

The reading is inaccurate, because the parallel effect of the resistor affects its accuracy. The SF741 can be used to form an extremely simple online impedance tester , which can accurately determine the resistance without having to replace the resistance.

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Online Impedance Tester Circuit Diagram

Typical wiring diagram for the op amp

Online Impedance Tester Measured Data Sheet

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