sampling interval

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sampling interval (station interval) The distance between points at which measurements are taken or the time which elapses between measurements; it is equal to the traverse (or record) length divided by the number of stations (or samples). For example, a 250m ground traverse with 25 stations along it has a sampling interval of 10 m; a wave-form might be sampled every two milliseconds, i.e. with a sampling interval of 2ms (and a sampling frequency of 500 Hz).