An oscilloscope measures the voltage through an electrical circuit in a specific period. The oscilloscope, in contrast to a voltmeter, shows the shape of the waves, whether round or square. Oscilloscopes are used in many applications, such as in radios in buildings and equipment for refining recorded sound. A voltage signal can be seen in the oscilloscope window. You can read the voltage, frequency, and period of a given circuit.
Instructions
- Prepare your oscilloscope, turn it on, set the setting, and connect the probes along the circuit you want to test.
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Adjust the control of “Y-Amplifier” (Amplifier Y) until the height of the wave adjusts to the screen. Set the “Timebase” control until a full cycle of the wave appears on the screen. A complete cycle consists of a peak and a depression. Set the “AC / GND / DC” switch to “GND.” And the “Y-Shift” until the wave focuses on the vertical axis. This switch places it in “DC.”
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Determine the peak-peak voltage along the circuit. Multiply the value of the “Y-Amplifier” control in volts per centimeter, by the number of vertical squares from the peak to the depression. Each square represents 1 cm.
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Determine the voltage of the peak or its amplitude, dividing the peak-peak voltage by 2.
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Determine the period of the circuit. Multiplies the value of the “Timebase” control in milliseconds per centimeter, by the number of horizontal squares from one peak to the next.
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Determine the frequency of the circuit by taking the inverse of the period or dividing one by the period.
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