At a recent checkup, I was shocked: Even though I was eating foods rich in saturated fat and a seemingly more indulgent diet, my total cholesterol was down 10 points, my bad LDL cholesterol was stellar, and my good HDL was the highest it's ever been.
As the frequency of the signal to be measured increases to approach the frequency of the source frequency, measurement error increases. To improve the accuracy of the frequency measurement for higher unknown frequency, we can use this second measurement method, count number of pulses in known time.
Frequency is the number of waves that pass a point in a second. This is affected by how quickly the wave source is vibrating, which determines how close the waves are together. For sound, the higher the frequency, the higher the pitch of the sound. The lower the frequency, the lower the pitch of the sound.