ENERGY MEASURE WITH AN OSILOSCOPE

[TurgayAbay]

Hello friends. I almost became sure that we can measure of a Electrical wawe pulse''s spent energy with multiply Voltage and Current and take the result's integral with Osiloscope MATH function . I am working for a special experiment shown at picture. In the experiment we are giving DC current for a very short time (about 100-200 ms) and measuring 1- How much energy TOTAL spent ? 2-How much energy spent for COIL HEAT LOSSES? ( COIL'S resistance is 1 ohm ) For second question i multiplied current x current and i accepted the result wawe as a power wave again like first question's answer (because R=1 ohm and I x I = I x I x 1(R) = I.V) then i took the integral with scope again for energy measuring 1-..DO YOU SEE ANY MISTAKE about circuit or measuring way ? 2- Have you got easier way to measure these?

 

[Delta Prime]

Kudos to you! You're very observant!
Although the link submitted below indicates current spikes the principle is the same! A very elegant solution has been given by a fellow member of this site.

Calculating energy from an oscilloscope plot of a current spike

Can any one help me with this? I have a plot of a short current surge on my oscilloscope. The surge was measure by sampling the voltage across a shunt resistor using a differential scope probe. I want to calculate the total energy in Joules over the period of the surge. I know the energy is...

forum.allaboutcircuits.com

 

[TurgayAbay]

ENERGY MEASUREMENT OF TOTAL AND COIL LOSSES WITH SCOPE

 

[TurgayAbay]

The formed waves are here .Blue is for Voltage and Yellow is for current

 

[TurgayAbay]

Kudos to you! You're very observant!
Although the link submitted below indicates current spikes the principle is the same! A very elegant solution has been given by a fellow member of this site.
View attachment 61203

Calculating energy from an oscilloscope plot of a current spike

Can any one help me with this? I have a plot of a short current surge on my oscilloscope. The surge was measure by sampling the voltage across a shunt resistor using a differential scope probe. I want to calculate the total energy in Joules over the period of the surge. I know the energy is...

forum.allaboutcircuits.com

Thanks for giving details.Yes it is generally similar but the circuit is different. Also i am especially asking for coil heat losses and how can we meausure it with scope