Hello,
This is my first time building a circuit and I'm having trouble getting it to perform the way I had hoped. I have an anemometer to measure wind speed that puts out an AC sine wave from 0 up to 8V athough I don't really anticipate getting 8V unless there is a hurricane. What I want to do is turn the wave into pulses varying from <0.8V for off to between 2 and 2.2V for on. Once I have my pulses digital pulses my software will convert that to windspeed. I have an op amp to use as a comparator. My basic set up is shown in the picture attached. when I hook it up all I'm getting is my sine wave moved to around 2V but the magnitude isn't increased and therefore I'm just getting an on digital signal. If you could tell me what I'm doing wrong and suggest how to make this work I would be super stoked.
This is my first time building a circuit and I'm having trouble getting it to perform the way I had hoped. I have an anemometer to measure wind speed that puts out an AC sine wave from 0 up to 8V athough I don't really anticipate getting 8V unless there is a hurricane. What I want to do is turn the wave into pulses varying from <0.8V for off to between 2 and 2.2V for on. Once I have my pulses digital pulses my software will convert that to windspeed. I have an op amp to use as a comparator. My basic set up is shown in the picture attached. when I hook it up all I'm getting is my sine wave moved to around 2V but the magnitude isn't increased and therefore I'm just getting an on digital signal. If you could tell me what I'm doing wrong and suggest how to make this work I would be super stoked.
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