The construction of a simple and inexpensive capacitive voltage probe by using coaxial cable is described. The probe has been tested to a frequency response of better than 30 MHz for sinusoidal voltage input and a rise time of <20 ns for single-pulse input. The probe is ideal for applications in small experiments involving low-energy and high-voltage capacitor discharge of nanosecond rise time.
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Chun-Shang Wong (1985) studied this question.
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