Trek's race bikes easy to spot in the peloton, while the frameset's unusual seatpost design stays comfy for long days in the ...

Mike: Nearly every analog instrument uses the 4-20 mA loop. Field transmitters, positioners, and variable frequency drives ...

Our hacker [John Duffy] wrote in to let us know about a video he put together to explain the design of his open-source multimeter, the HydraMeter. If you’re interested in how the circuitry ...

Compared with the low-frequency Doppler current meter, the HF wideband current meter has a lower measurement blind area and higher measurement resolution, although it has a more confined measurement ...

When you need a multimeter for testing electrical equipment around the home, it's vital to know what all those symbols around ...

Nano-level current-measuring device is important for the scanning tunneling microscope. The nano-ampere current measuring meter system based on high-precision amplifiers is mainly designed as ...