Category «Testing and Measurement»

Sferic Signal Simulator

Sferic signal simulator is used to produce an impulse  signal which simulates the waveform of a sferic, a radio atmospheric signals produced by a lightning strike. In time domain, the waveform of a sferic signal is a single high amplitude spike. When this pulse is analyzed in frequency domain, it will show a wide band …

Capacitor ESR Meter

This is schematic diagram of capacitor ESR meter circuit. ESR is equivalent series resistance, and this parameter is used to express the resistance value of any electronic component that basically is not a resistor. ESR is present on many non-resistor component, such as capacitor, inductor, or semiconductor. The circuit shown in this schematic diagram is …

Scope’s Time Base Calibrator

A scope calibrator is a circuit that is used for calibrating the variable time base oscillator of general purpose scopes. This scope calibrator gives 100kHz reference, so if the scope is set to 10 cycles on 10 graticule divisions, then each division represents 10 microseconds or 100kHz. And each division will represent 1 Mhz or …