Question
Download Solution PDFA frequency counter needs to measure a frequency of 15 Hz. Its signal gating time is 2s. What is the percentage accuracy of the counter, taking into account the gating error?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGating signal determines the length of time during which the counters are allowed to totalize the pulses separated by the period of the original input signal.
\(f = \frac{N}{t}\)
Where t is gating time
⇒ N = ft = 15 × 2 = 30
Percentage accuracy of the counter \( = \frac{{N - 1}}{N} \times 100 = \frac{{30 - 1}}{{30}} \times 100 = 96.67\;\% \)
Last updated on Jul 2, 2025
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