Capacitor science oscilloscope

The oscilloscope of a capacitor is a widely used electronic measuring instrument. It can transform the electrical signals that are invisible to the naked eye into visible images, so that people can study the changes of various electrical phenomena. The oscilloscope uses a narrow beam of high-speed electrons to create a tiny spot on a phosphor-coated screen (this is how traditional analog oscilloscopes work). Under the action of the signal under test, the electron beam is like the tip of a pen, which can plot the instantaneous value of the measured signal on the screen. The oscilloscope can be used to observe waveforms of various signal amplitudes over time, and can also be used to test various types of power, such as voltage, current, frequency, phase difference, amplitude, and so on.

The oscilloscope is categorized by structure and performance:

1. Memory oscilloscope. Using a stored oscilloscope or digital storage technology, a single electrical signal transient, aperiodic, and ultra-low frequency signals are retained on the oscilloscope screen for a long time or stored in the circuit for repeated testing.

2. Use an oscilloscope. The frequency band is wide, the scanning linearity is good, and the direct current, low frequency, high frequency, ultra high frequency signal and pulse signal can be quantitatively tested. With an amplitude calibrator and a time calibrator, the measurement is accurate to ±5%.

3. Trace the oscilloscope. The structure has an electronic switch and a gating circuit, and can simultaneously display waveforms of two or more co-frequency signals on the screen of the single-beam oscilloscope. However, there is a time difference and the timing relationship is not accurate.

4. Normal oscilloscope. The circuit structure is simple, the frequency band is narrow, and the scanning linearity is poor, and it is only used to observe the waveform.

5. Multi-line oscilloscope. The multi-beam oscilloscope can display the waveforms of two or more co-frequency signals simultaneously on the screen, without time difference, and the timing relationship is accurate.