In this situation the source must be terminated with the same impedance, so it should be fed into a 50 ohm resistor. Some ‘scopes have a 50 ohm input mode, making this a matter of button pressing.

Measuring the impedance of these “complex sensors” requires an AC excitation that sweeps across the frequency range of the sensor. This design idea shows how a single-chip digital waveform generator ...

By leveraging waveform similarities between previously recorded EEG data from other subjects and the current subject's data, the system achieved high-accuracy waveform reproduction, demonstrating ...

On the negative half of the cycle, transistors 4 and 2 turn on, forming the negative half of the waveform at the output of the transformer. These two halves complete the full RF waveform. Because of ...

The IEC (International ElectrotechnicalCommission) has at least two standards that define impulse tests andtheir waveforms. Use IEC60060-1, “High Voltage Test Techniques” when testinginsulation ...

So how is an arc detected? High-impedance arcs and corona generate high-frequency current pulses that ride on the lower-frequency wave of the applied test-current waveform. These pulses may have a ...

Bench measurements on the circuit show a minimum voltage of about 30 mV when driving a high-impedance load. Also, this approach to voltage generation won't work for rapidly-changing signals.

May 26, 2025 Energy-efficient, high-precision measurement system using waveform similarity New system uses compressed sensing to cut data needs and energy use in signal measurement by exploiting ...