How Do You Calculate The Frequency Of A Period?
A period is the interval—usually measured in time—it takes to complete the cycle of a regularly repeating phenomenon. Frequency is the number of occurrences of the phenomenon per unit of time. You can easily convert one measure into the other with a simple arithmetic manipulation. Ascertain the period’s length in seconds. For example, you might measure the period with a stopwatch. If a period occurs too fast to measure accurately, you may want to measure several periods and then divide by the number. For example, your heartbeat may be too fast to measure the time between beats with a stopwatch, but if you measure the span of ten beats and divide by 10, then you’ll have a better measurement of the period between two beats. Take the reciprocal of the period, including the units. The result is the frequency. For example, if the period between heartbeats is .9 seconds, then the reciprocal is 1/(.9 sec) = 1.111/sec. Notice that an inverse second is also called a hertz (Hz). This result
