ESC Silicon Valley

Test & Measurement

Martin Rowe
Senior Technical Editor
Technical information about test and measurement equipment and strategies from the point of view of the R&D or design and development engineer. Topics include T&M hardware such as oscilloscopes and signal generators/analyzers, as well as software and test methodologies.

Pasternack adds VNA calibration kits

Pasternack has added three kits to its line of calibration kits used with vector network analyzers. Frequencies include 3 GHz, 8.5 GHz, and 26.5 GHz. Read More...

Steve Sandler: Give back more than you take in engineering

What motivates an engineer to teach? Here’s a look at what makes Steve Sandler, the 2015 winner of the Jim Williams Contributor of the Year Award ACE Award, give more back to engineering than he has taken. Read More...

Smart fan trays keeps rack equipment cool

Configured with three or six fans, Verotec’s 1U intelligent fan trays decrease or increase fan speed in response to temperature. Read More...

Troubleshoot errors in low-voltage measurements

You can often characterize sources of low voltage errors by conducting a variety of experiments with analog filters, digital filters, and integration while digitizing from the actual sensor, a dummy cable/resistor, and a grounded input. Read More...

History of jitter Part 4: Time-interval error (TIE)

At its core, jitter measurement is about comparing when an edge actually arrives to when it's expected to arrive. Read More...

Review: Signal Hound VSG25A vector signal generator

Suddenly, we seem to have a plethora of low-cost RF signal generators available for the RF experimenter and EMC engineer. Signal Hound has really raised the bar on these instruments with their new VSG25A vector signal generator, introduced recently at the International Microwave Symposium in Phoenix last May. I was able to get my hands on one to try out for potential EMC test applications. Read More...

Site enables detailed component comparisons

A new site is dedicated to conducting detailed comparisons of electronic components to assist engineers with the selection process. They’ve kicked things off by tackling 60 MEMS & other miniature microphones. Read More...

Test Points are Trending

You can use EDT Test Points for at-speed test. Read More...

Celebrate Pluto and Apollo

The anniversary of the first moon landing and the Pluto flyby provides the perfect opportunity to highlight EDN's space coverage over the years. Read More...

Video test platform enables 12G-SDI analysis

The Omnitek Ultra 4K Tool Box offers a single-box platform for the analysis and generation of Ultra HDTV video formats, including 12G-SDI. Read More...

USB DIO device offers fast scan rates

Measurement Computing’s USB-DIO32HS 32-channel digital I/O device boasts input and output scan rates of up to 8 Msamples/s. Read More...

Analyzer handles broadband and pulsed signals up to 85 GHz

Rohde & Schwarz is claiming the company's R&S FSW85 high-end signal and spectrum analyzer is the only instrument on the market to cover the frequency range from 2 Hz to 85 GHz in a single sweep. Read More...

Prediction: Microwave coming to PXI – big time!

Industry forces are lining up for high frequency microwave in PXI. Larry Desjardin explains the technical and market forces behind it and makes a prediction of what’s coming. Read More...

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AC power measurement uses PWM & PAM

Use clever pulse modulation techniques to multiply signals and measure power. Read More...

Simplified kurtosis computation detects signal interference

The statistical kurtosis operation, reinterpreted and implemented on an FPGA for this Design Idea, can detect various forms of interference in RF and other signals. Read More...

De-embed transmission lines with FIR filters

This DI uses MATLAB to design de-embedding filters which clean up high-speed signal measurements. Read More...

Instrumentation amp makes an accurate transimpedance amp too

The interesting topology in this Design Idea turns a monolithic in-amp into a good transimpedance amp for photodiode or similar applications. Read More...

Transient load gives power systems a workout

Verify power supply performance with this transient load generator. Read More...

Bad-bulb finder fixes Christmas lights

15 years later, here’s a new take on one of our most popular Design Ideas ever! Read More...

Power transient buffer enables IC & circuit testing

This DI lets you use a versatile function generator to test a circuit’s response to power transients and noise. Read More...

Antilog converter linearizes carbon dioxide sensor

Simplify gas sensor interface with some analog preprocessing. Read More...

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Pasternack adds VNA calibration kits

Pasternack has added three kits to its line of calibration kits used with vector network analyzers. Frequencies include 3 GHz, 8.5 GHz, and 26.5 GHz. Read More...

Interface IC calibrates sensor outputs

A 16:1 sensor-interface analog front-end IC, the XR10910 from Exar, connects multiple sensors and simplifies sensor conditioning. Read More...

High Frequency testing of 0.5mm pitch LGA20 is made easier with PB-LGA20A-Z-01 Socket Probe Adapter with SMA connectors

EAGAN, MN - July, 2015 - Ironwood Electronics' PB-LGA20A-Z-01 Socket Probe Adapter which allows high-speed testing of LGA device while accessing the signals using testers via header pins. Ironwood Electronics is an expert in developing high-speed interfaces for processors, peripheral IC's and memory devices and is a development partner with both Agilent and Tektronix. Read More...

Smart fan trays keeps rack equipment cool

Configured with three or six fans, Verotec’s 1U intelligent fan trays decrease or increase fan speed in response to temperature. Read More...

Video test platform enables 12G-SDI analysis

The Omnitek Ultra 4K Tool Box offers a single-box platform for the analysis and generation of Ultra HDTV video formats, including 12G-SDI. Read More...

USB DIO device offers fast scan rates

Measurement Computing’s USB-DIO32HS 32-channel digital I/O device boasts input and output scan rates of up to 8 Msamples/s. Read More...

Analyzer handles broadband and pulsed signals up to 85 GHz

Rohde & Schwarz is claiming the company's R&S FSW85 high-end signal and spectrum analyzer is the only instrument on the market to cover the frequency range from 2 Hz to 85 GHz in a single sweep. Read More...

Probe adapters simplify interfacing Teledyne LeCroy oscilloscopes

Adapt probes from Tektronix with the TPA 10 to Teledyne LeCroy oscilloscopes. Use the CA 10 to adapt third-party current probes. Read More...

Power analyzer gets accuracy boost

The WT3000E from Yokogawa improves on measurement accuracy over its predecessor and is now at 0.04% at 60 Hz. Read More...

Bluetooth temperature sensor works with smart phones

Based on the µBlue nRF8001 Bluetooth V4.0 low energy connectivity IC from Nordic Semiconductor, a temperature-sensing device from National Electronics & Watch Co. (NEWCO) enables low-cost temperature monitoring using a Bluetooth V4.0-compatible smart phone. Read More...

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The Tektronix 1101 oscilloscope-probe power supply

A mechanical design is at once a masterpiece and an expensive expedient. Read More...

What's inside a smart meter? iFixit tears it down

When iFixit's Kyle Wiens had the opportunity to tear down an Elster smart meter, he jumped at it—not to come up with a repair manual but to evaluate the health and safety issues that seem to surround the utilities’ installation of smart meters. Read More...

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History of jitter Part 4: Time-interval error (TIE)

At its core, jitter measurement is about comparing when an edge actually arrives to when it's expected to arrive. Read More...

Site enables detailed component comparisons

A new site is dedicated to conducting detailed comparisons of electronic components to assist engineers with the selection process. They’ve kicked things off by tackling 60 MEMS & other miniature microphones. Read More...

The Art of Waves: Images on an oscilloscope

Who says waveforms such as Lissajous patterns on a box or PC-based oscilloscope's display aren't an art form? You can do more than that. See for yourself and download a Python script. Read More...

Perform power measurements with modular digitizers

This article addresses making basic power measurements in AC circuits and devices using a modular digitizer. Read More...

Workshop opened my eyes to the latest in test

Attending Keysight's Advanced Measurement Lab was a worthwhile experience, one that leaped me into the latest measurement technology. Read More...

JTAG Boundary scan: Four test cases

Learn how an engineering design consulting company used Boundary scan to solve problems in four microprocessor-based boards. Read More...

LVDS display bridges and automated measurements, part 1

OpenLDI modules control displays in vehicles and their components need characterization. In part 1 of 2, we discuss the fundamentals of LVDS signals, the information they carry, and the components needed to drive displays. Read More...

Product How-to: Measure heat usage in a radiator and gather consumption data for modern “Green” analysis

Tracking energy use is recognized as more and more important in today’s world. It makes perfect sense to see the proliferation of smart energy meters and programmable thermostats that emerged in recent years. Read More...

History of jitter, Part 3: BER as a function of jitter

Looking at BER as a function of jitter seen at a receiver depends on two things: how much jitter the signal has, and where the signal is being latched. Read on to find out more. Read More...

5G base station architecture, Part 1: Evolution

I thought that now would be a good time to review, with you the EDN design audience readership, where we are at technically with the formation of 5G technology in light of the recent Brooklyn 5G Summit that took place on April 8-10, 2015 jointly organized by Nokia Networks and the NYU Wireless research Center at Polytechnic School of Engineering at New York University. Read More...

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Review: Signal Hound VSG25A vector signal generator

Suddenly, we seem to have a plethora of low-cost RF signal generators available for the RF experimenter and EMC engineer. Signal Hound has really raised the bar on these instruments with their new VSG25A vector signal generator, introduced recently at the International Microwave Symposium in Phoenix last May. I was able to get my hands on one to try out for potential EMC test applications. Read More...

Celebrate Pluto and Apollo

The anniversary of the first moon landing and the Pluto flyby provides the perfect opportunity to highlight EDN's space coverage over the years. Read More...

Test Points are Trending

You can use EDT Test Points for at-speed test. Read More...

Prediction: Microwave coming to PXI – big time!

Industry forces are lining up for high frequency microwave in PXI. Larry Desjardin explains the technical and market forces behind it and makes a prediction of what’s coming. Read More...

Industry events demonstrate Ethernet speeds

During the week of June 22, 2015, the UNH-IOL held a 40G/100G plugfest and ran tests on the emerging IEEE 802.3by 25G Ethernet physical layer. Senior Technical Editor Martin Rowe was there and met with John D'Ambrosia of the Ethernet Alliance and Jeff Lapak of UNH-IOL. See the interview in a video. Read More...

GaN technology and the potential for EMI

While attending DesignCon 2015 last January, I had the chance to hear an interesting keynote presentation by Alex Lidow, CEO of Efficient Power Conversion, Inc., speak on the upcoming development in gallium nitride (GaN) technology for high-power switching devices. Because these devices switch at sub-picosecond speeds, there are EMI ramifications. This article evaluates a simple half-bridge DC-DC converter using GaN switching. Read More...

Merger-mania: Has test and measurement gone MAD?

Larry Desjardin gives the background behind four recent mergers, acquisitions, and divestitures in the test industry, and predicts there are more to come. Read More...

Review: The Aaronia BicoLOG 30100X and HyperLOG 7060 EMI antennas

The majority of my work includes troubleshooting and pre-compliance testing for clients and I’m always on the lookout for useful EMI equipment to make my job easier. In this review I'll be trying out the Aaronia BicoLOG 30100X (30 to 1000 MHz active antenna with attached 40 dB preamp) and a HyperLOG 7060 (700 MHz to 6 GHz log-periodic). Read More...

PCIe Update: Power, IoT, storage, OCuLink, simulation, and equalization

Quick update on what’s hot in PCIe from the 2015 PCI-SIG Developer’s Conference. Read More...

Beware of hidden antennas!

There are many causes of radiated emissions and the product designer needs to be able to identify the “hidden antennas” that cause this. Read More...

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