The increase in switching speed offered by GaN transistors requires good measurement technology, as well as good techniques to capture important details of high-speed waveforms. This article focuses ...

Vibration calibration and measurement techniques are critical for ensuring the accuracy and reliability of sensors and instrumentation employed in diverse fields such as civil engineering, seismology, ...

The measurement technique of an aspheric surface is mainly for the surface form and parameters. The surface form is the three-dimensional distribution of the surface in the spatial domain. The ...

Measuring phase noise with a spectrum analyzer. The primary advantage of dedicated phase-noise analyzers. The cross-correlation method. Using a spectrum analyzer is the oldest, most straightforward, ...

In the first half of this paper (Engineering Extra, Apr. 14), I discussed the need for an accurate antenna capable of repeatable measurements and presented the design of NPR Lab’s transportable ground ...

A vital component in many research fields is the ability to measure bacterial growth for fermentation, antibiotic effectiveness, synthetic biology, and food safety. Estimating bacterial growth ...

A laser Doppler vibrometer’s (LDV) real-time capability enables measurement times roughly six orders of magnitude smaller compared to any method that is based on strobe techniques or provides a ...

This last part of the discussion on AC characteristics measurement methods describes the short circuit and overload current characteristics, remote on/off control, and isolation voltages. It also ...

New spacecraft techniques propose using CubeSats, laser rangefinding, and precise Doppler measurements to determine the mass ...

Compared with research office systolic BP measurement, the pooled mean differences from corresponding systolic BPs were higher for convenient office BP measurement and lower for automated office ...