Other Parts Discussed in Thread: LDC0851
Hi,
i'm working on rotational encoder(absolute or incremental doesn't matter so much) and the question is what is the best rotational encoder in the sense of ACCURACY and RESOLUTION that could be achieved with LDC devices.
as far as i have understood RESOLUTION depends on RATE OF CHANGE OF INDUCTANCE(or equivalently the resonance frequency) AS THE RELATIVE ANGLE BETWEEN TARGET AND SENSOR CHANGES, first of all is this absolutely correct or not and if yes, is there any formula or rule of thumb for resolution calculation, or are there any designs based on LDC that could achieve for example 18 bit resolution per cycle or not?
also about accuracy what i have understood is the best accuracy that could be achieved in any sensor is just the resolution and how much that accuracy is just determined by SNR, am i correct or not? and if yes i would deduce that there would be two important areas to stick on, 1st maximizing the resolution and 2nd noise isolating techniques.