I love creating free content full of tips for my readers, you. I don't accept paid sponsorships, my opinion is my own, but if you find my recommendations helpful and you end up buying something you like through one of my links, I could earn a commission at no extra cost to you. Learn moreOscilloscopes can measure and display the instantaneous voltage graphically but keep in mind that an oscilloscope and a graphic multimeter is not the same thing. It consists of a screen that has a graph shaped vertical and horizontal lines. An oscilloscope measures the voltage and plots it as a voltage vs. time graph on the screen. It usually doesn’t show the frequency directly but we can get a closely related parameter from the graph. From there we can calculate the frequency. Some of the latest oscilloscopes these days can automatically calculate the frequency but here we are going to focus on how to calculate it ourselves.
In this post we'll cover:
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How to strip wire fast
Controls and Switches on the Oscilloscope
To calculate the frequency, we need to connect it to a wire with a probe. After connecting, it will show a sine wave that can be adjusted with the controls and switches on the oscilloscope. So it is crucial to know about these control switches.
In the bottom line, you will have the place to connect your probe into the oscilloscope. Depending on what type of device you are using there can be one or more than one channel.
There is a horizontal and a vertical positional knob on the oscilloscope. When it shows the sine wave it’s not always in the center. You can rotate the vertical position knob to make the waveform in the center of the screen.
In the same way, sometimes the wave only takes a portion of the screen and the rest of the screen remains blank. You can rotate the horizontal positional knob to make the wave’s horizontal position better and fill the screen.
Volt/div and Time/div
These two knobs allow you to change the value per division of the graph. In an oscilloscope, the voltage is shown on the Y-axis and the time is shown on the X-axis.
Turn the volt/div and time/div knobs to adjust the value you want per division to show on the graph. This will also help you get a better picture of the graph.
The oscilloscope doesn’t always give a stable graph. Sometimes it can be distorted in some places. Here comes the importance of triggering of an oscilloscope. Trigger control allows you to get a clean graph on the screen. It is indicated as a yellow triangle on the right side of your screen.
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