# ENERGY MEASURE WITH AN OSILOSCOPE

#### turgay

Joined Oct 19, 2023
5
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 ( Not translated to English yet and red text is enough for questions ).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?

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#### tautech

Joined Oct 8, 2019
377
Using a DSO ?
Normally we would select A instead of V/div and use cursors to determine amplitude and ON time across the shunt.
Then multiply the time measured and period to arrive at Ah and with voltage calculate the Watts.

#### turgay

Joined Oct 19, 2023
5
Yes , i used cursors of Scope too of course. I tried to measure two different thing with scope with integral math function like i wrote 1. VxA x time 2. A X A x time .I am especially asking for second..? .My scope and the Voltage ( blue ) and Current wawes is in the picture

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#### turgay

Joined Oct 19, 2023
5
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 ( Not translated to English yet and red text is enough for questions ).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?

#### turgay

Joined Oct 19, 2023
5