Aug
26

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Keyence to release next-generation coordinate measuring machine

KEYENCE will release the XM Series handheld probe coordinate measuring machine on September 1st, 2015. Conventional coordinate measuring machines require difficult installation, a controlled environment, and dedicated programmers….

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Cutting AC Line Harmonics: A Three-Phase challenge

by GERALD HOVDESTAD, Behlman Electronics In years past, all loads connected to ac supply lines were either resistive, such as light bulbs and heaters, or simple inductive loads,…

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Aug
24

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How to select an oscilloscope

by David Herres, Contributing Editor Here’s a quick review of what’s important to know about the wide assortment of scopes and scope features available today. Other than the…

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Aug
24

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Trigger me this

by Bill Driver, Christian Gindorf, National Instruments Conventional triggering methods in oscilloscopes have trouble capturing rare or complex events. New approaches employ FPGA technology to discern complicated triggering…

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Aug
24

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Vector network analyzers illuminate wireless product designs

by BEN MAXSON, Head Applications Engineer, Copper Mountain Technologies Here are a few basic things to know about how to use vector network analyzers that measure complex impedance…

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Featured

waveguide featured

Basics of waveguides

Monday, March 23, 2015

There is something almost comical about a waveguide – the notion that electromagnetic signals or usable power could pass through a hollow pipe and that techniques appropriate to…

oliver heaviside

Oliver Heaviside and Maxwell’s equations

Friday, March 6, 2015

Oliver Heaviside’s life, spanning the years 1850 to 1925, began and ended in squalid surroundings. He was never entirely free of the dark melancholy that characterized his private…

keithley handbook

Answer this 5-question quiz, win a measurement handbook

Thursday, March 5, 2015

What’s your test IQ? Answer this five-question quiz and be entered to win one of 20 Low Level Measurement Handbooks graciously donated to us by Keithley Instruments, a…

VFD simple schematic

Variable Frequency Drives: Viewing the DC Bus

Thursday, September 25, 2014

By David Herres In the field of motion control it’s often necessary to vary the speed of an electric motor and even reverse its direction of rotation. When…