The Laureate counter determines frequency by timing an integral number of periods over a specified gate time, and then taking the inverse of period. Rate is obtained by multiplying the input by a scale factor. The inverse period approach allows greater accuracy and faster update times than conventional meters which count signal pulses over a specified time interval. AC line frequency may be accurately measured to 50.0000 or 60.0000 in a few line cycles. 1000 Hz signals may be measured to 0.01 Hz resolution at up to 25 per second.
Fast response is ideal for alarm and control applications.
To reduce the effects of signal noise, a count by 10 or 100 feature with rounding is selectable. Variations in the displayed reading can also be reduced by selecting a longer gate time. An adaptive filter can reduce variations due to noise while rapidly responding to actual changes in the signal. Rate and total simultaneously. One channel can display total while the other displays rate.