raitl New Member Jul 7, 2006 #1 Does anyone know what kind of frequency is the knock sensor listening for on cars? I know it's a piezo element, but no idea of it's specs.
Does anyone know what kind of frequency is the knock sensor listening for on cars? I know it's a piezo element, but no idea of it's specs.
J jkearns New Member Jul 7, 2006 #2 Its in the order of 5kHz to 20Khz, then there is a bucketload of DSP stuff needed to get the signal you are after.
Its in the order of 5kHz to 20Khz, then there is a bucketload of DSP stuff needed to get the signal you are after.