Measurement triangle: this quantum metrology triangle shows the relations between the three electrical units volt, ohm and ampere and the involved fundamental constants. Researchers at PTB are ...

They are all ways you can make oscilloscope probes that measure current. If you think of a scope as a voltage measurement device, you ought to watch the recent video from Keysight Technology (see ...

Cool and accurate: An NPL researcher standing over one of their cryogenic current comparators. (Courtesy: NPL) Researchers in the UK have produced the most accurate cryogenic current comparator – a ...

Rogowski coils (see Sidebar and References 1 and 2 at end) perform passive current measurement and are used in test and measurement devices and power-monitoring activities. Calibration is required to ...

The concept of the device is simple. It’s a power supply that measures current on a nanoampere scale, and on microsecond intervals. It can deliver from 0 to 5.125 volts in 256 steps, and up to ...

Almost all current measurements involve measuring the voltage drop across a resistor, ... Injecting the charge directly into the SET island ensures very good coupling to the measurement device.

UK firm Cryogenic has teamed up with the National Physical Laboratory (NPL) to develop what is claimed to be the world's most accurate instrument for comparative measurements of electric current. The ...

Using a 25-µ? shunt, the SFP101 current, voltage, and temperature measurement IC from Sendyne typically achieves a current measurement accuracy to within ±0.05%, while operating over the automotive ...

Figure 2. Measurements of 3,300-V silicon-carbide Schottky diode Voltage is applied with a 5-kV power supply, and current is measured with an SMU instrument.

Figure 1. Plot of the drain leakage current as the drain voltage is swept while the transistor is in the OFF state. To test devices at extremely high voltages (>3 kV), a high-voltage power supply ...