Monday, January 23, 2012

How to calibrate and use oscilloscope in measuring the peak voltage(secondary) of transformers?

i am an electronics student ,what is measured here is the AC voltage peak of the transformers on the secondary part.How to calibrate and use oscilloscope in measuring the peak voltage(secondary) of transformers?It should follow the formula square root of 2 = 1.4142

Measure the voltage with a multimeter, and the oscilloscope should shoe 1.4142 times more if it is a sinusoidal wave.

The oscilloscope should have a calibration port to verify the calibration and adjust the probe compensation.



Hope this properly answers your question





GuruHow to calibrate and use oscilloscope in measuring the peak voltage(secondary) of transformers?You calibrate a scope by following the manufacturers directions.



You use a 10x probe, which is good to about 500 volts (check documentation on the probe). If that is not enough voltage, use a 100x probe, which is usually good for 2000 volts.



Connect the probe to the point desired, and to ground, and measure the voltage peak on the scope. You will need to trigger the scope on the signal, either internally or externally. Take the voltage seen on the scope and multiply by the probe factor (10x or 100x). Some scopes may adjust the scale factor automatically for the probe used.



For details on how to use the scope, refer to the manufacturers manual.



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