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    Tag: oscilloscope

    What is an Oscilloscope Probe?

    The oscilloscope probe is mainly used to guide the measured voltage signal from the measuring point into the oscilloscope for measurement. Probe is crucial to the accuracy and correctness of the measurement results, as it's the electronic component connecting the measured circuit and the input of the oscilloscope. The simplest probe is a wire that connects the measured circuit and the input of the oscilloscope, a complex probe consists of resistor-capacitor unit and active devices. A simple probe has no shielding measures, so it's susceptible to external electromagnetic interference. Meanwhile, larger equivalent capacitance in it would increase the load on the measured circuit, thus leading to distortion of the measured signal.

    Troubleshooting with the Oscilloscope

    There is no signal waveform on the screen when collecting signals?
    1. Check whether the detector is normally connected to the signal wire.
    2. Check whether the signal wire is normally connected to the BNC (namely channel connector).
    3. Check whether the detector is normally connected with the object under measurement.
    4. Check whether the object under measurement produces a signal (Signal channel can be connected with the fault channel to find out the fault).
    5. Collect the signal again.
    6. Check the state of the trigger mode.