Hello thank you for replying and thanks for your suggestion it ιs most useful. Say we have a proportional voltage to the frequency using an rc circuit, how will I then turn that voltage into resistance? more accurately the frequency that I intend to measure ranges from 70hz to 1,5khz which I want to turn into resistance 0 to 50kΩ, where each time 70hz will enter the circuit 0Ω will be measured and as the frequency will raise the resistance will also.
Thank you