FREQUENCY MEASUREMENT BY CRO
AIM- To study frequency measurement by CRO with help of oscilloscope.
APPARATUS –
A) frequency measured by determine time (t)per cycle of display wares from time (t) period is measured as explain in section and frequency calculated load.
B) frequency measurement with lissagious set time per division source and vertical mode in X-Y position.
applied the knob frequency to axis input from a signal generator and frequency to measurement to Y axis to input adjust appropriate control so that the pattern displays is within the CRO screen and the adjust frequency of signal generator so but the display pattern with stationary as shown figure from displayed waves from the unknown frequency can be calculated as follows.
Unknown frequency = number of crossing point convex horizontal scale line
number of crossing point vertical line frequency signal generator.
Time – No of horizontal division × Time
Div
Frequency- 1/T
CONCLUSION- We can measured the frequency by CRO with help of.
APPARATUS –
A) frequency measured by determine time (t)per cycle of display wares from time (t) period is measured as explain in section and frequency calculated load.
B) frequency measurement with lissagious set time per division source and vertical mode in X-Y position.
applied the knob frequency to axis input from a signal generator and frequency to measurement to Y axis to input adjust appropriate control so that the pattern displays is within the CRO screen and the adjust frequency of signal generator so but the display pattern with stationary as shown figure from displayed waves from the unknown frequency can be calculated as follows.
Unknown frequency = number of crossing point convex horizontal scale line
number of crossing point vertical line frequency signal generator.
Time – No of horizontal division × Time
Div
Frequency- 1/T
CONCLUSION- We can measured the frequency by CRO with help of.