Takayoshi Ohtsu*, Yuma Nagao and Ryuji Ohsawa
Due to the decrease in the electrostatic strength of electronic devices, there is concern about the effects of transient changes in the electromagnetic field on them. The optical voltage probe has high input impedance, can observe the signal waveform without affecting the circuit, and has little influence on the system to be measured by using the optical fiber cable. Furthermore, since the frequency characteristics are flat, it is possible to measure the original waveform with an oscilloscope. Therefore, the malfunction of the robot due to electrostatic discharge was analyzed using an optical voltage probe.
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