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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.

PCI cards simulate RTDs and strain gages

Pickering Interfaces has introduced a strain-gage simulator card and an RTD simulator card that runs on PCs through the PCI bus. Read More...

Eric Bogatin's SI courses go online

Signal-integrity evangelist Eric Bogatin's SI Academy classes are now available through an online subscription. Read More...

Review: TPI Version 4 4400 MHz RF synthesizer

Earlier, I wrote a short review on a low cost RF synthesizer from Trinity Power, Inc. (TPI) Version 5, a very small, but relatively powerful RF source that could be used for localized radiated immunity pre-compliance testing of products. The company also sells Version 4, a larger RF synthesizer that sacrifices maximum RF output level for a flatter RF output response. I had a chance to try it out recently. Read More...

Design clock controllers for hierarchical test

Get the most out of hierarchical test by adding an on-chip clock controller. Read More...

RF calibrator reaches 27 GHz

Calibrate RF test equipment such as spectrum analyzers with the Fluke 96270A RF source. Read More...

Use the right data-acquisition mode

Modular digitizers have several ways to maximize memory use and data capture. Here's an overview of the different ways to trigger and capture signals. Read More...

Programmable power supplies deliver up to 650 VDC

TDK Corporation announces the introduction of high voltage models to TDK-Lambda’s Z+ series of 200W and 400W programmable DC power supplies. Read More...

Boost and modify square waves

Build your own signal-conditioning modules to provide the amount of voltage, current, and power you need. See schematics for the circuits. Read More...

USB powers low-cost DAQ modules

The USB-230 series from Measurement Computing samples at 50 ksamples/s and 100 ksamples/s. Read More...

Handheld anemometer measures airflow and temperature

The ATS-0345 vane anemometer from Advanced Thermal Solutions measure airspeed from 0.3 m/s to 45 m/s. Read More...

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LabVIEW real-time seismic alert system

National Instrument’s LabVIEW has uses beyond instrument control, as demonstrated by this Web app. Read More...

Milliohm Squawker great at finding shorts and reverse engineering PCBs

This well thought out tool for “listening to” low resistances really speeds troubleshooting & tracing. Read More...

Versatile noise generator tests signal recovery gear

Accurate noise generator allows mixing-in of a clean test signal. Read More...

LTC Design Note: Measure RH with instrumentation-grade system monitor

An accurate, modern system monitor chip senses humidity the old-fashioned way. Read More...

Simple capacitance meter bins parts

This simple, elegant circuit lets you quickly sort through capacitors. Read More...

Detect wire breaks with unusual CMOS gate circuit

TDR in the shop? Try this circuit to detect a wire break. Read More...

Measure inductance & capacitance over a wide range

Measure inductors and capacitors over a very wide range of values with this simple circuit. Read More...

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PCI cards simulate RTDs and strain gages

Pickering Interfaces has introduced a strain-gage simulator card and an RTD simulator card that runs on PCs through the PCI bus. Read More...

RF calibrator reaches 27 GHz

Calibrate RF test equipment such as spectrum analyzers with the Fluke 96270A RF source. Read More...

>> SEE ALL

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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Boost and modify square waves

Build your own signal-conditioning modules to provide the amount of voltage, current, and power you need. See schematics for the circuits. Read More...

Challenges in LBIST validation for high reliability SoCs

The challenges of developing LBIST tester patterns for production, and ways of creating such patterns efficiently. Read More...

Product How To: Calculate power with a scope

Teledyne LeCroy’s Art Pini explains the math behind automatic power calculations on an oscilloscope equipped with power analysis software. Read More...

Product Tryout: NI VirtualBench

National Instruments entered the bench instrument market with the faceless VirtualBench, an all-in-one test instrument. It has most, but not all, of what you'd expect. Read More...

Profiles in Design: Istvan Novak

If you’ve spent any time at a DesignCon conference over the years, chances are you’ve met Istvan Novak, who attended his first DesignCon in 1994. Currently, he is a senior principal engineer at Oracle, working on power and signal integrity modeling, designs. Read More...

Measurements demonstrate transceiver quality

A Xilinx I/O specialist demonstrates FPGA serial links to customers by making signal-integrity measurements, which he also uses to help engineers debug systems. Read More...

Digitizers: Finer resolution is better

The more resolution you have the better a digitized waveform will match your analog input. Read More...

DigRF devices need RF and protocol tests

The transition from wireless analog to digital requires protocol testing from the physical layer to the application layer. Read More...

Fluke Connect: It works but needs work

Fluke Connect is a useful concept for sharing measurements from handheld meters. With a little more work on Fluke's part, it will be easier to use. Read More...

Perform five common debug tasks with an oscilloscope

Find anomalies, verify serial and parallel buses, perform spectral analysis, find noise sources, and measure power with a single instrument. Read More...

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Eric Bogatin's SI courses go online

Signal-integrity evangelist Eric Bogatin's SI Academy classes are now available through an online subscription. Read More...

Review: TPI Version 4 4400 MHz RF synthesizer

Earlier, I wrote a short review on a low cost RF synthesizer from Trinity Power, Inc. (TPI) Version 5, a very small, but relatively powerful RF source that could be used for localized radiated immunity pre-compliance testing of products. The company also sells Version 4, a larger RF synthesizer that sacrifices maximum RF output level for a flatter RF output response. I had a chance to try it out recently. Read More...

Design clock controllers for hierarchical test

Get the most out of hierarchical test by adding an on-chip clock controller. Read More...

Could your product be exempt from EMC testing?

There are some little known exemptions that I learned about when I was wading knee deep through the murky waters of several regulatory standards. I hope you can take advantage of a few of them and save yourself and your company some serious money. Read More...

Abstract deadline extended for DesignCon 2015

Due to popular demand and a holiday weekend, DesignCon 2015 will extend its call for abstracts deadline. Read More...

Review: Signal Hound BB60C real time 6 GHz spectrum analyzer - Part 2

In Part 1 of this review, we discussed the basic architecture, specifications and controls of the Signal Hound BB60C real-time spectrum analyzer. In Part 2, we’ll show you some actual measurements and several screen captures. Read More...

Review: Signal Hound BB60C real time 6 GHz spectrum analyzer

The Signal Hound series of spectrum analyzers are about as small as three large-size Hershey chocolate bars stacked on top of each other. The unit offered for review is the recently released model BB60C real time analyzer, which can tune from 9 kHz to 6 GHz with a dynamic range of +10 to approximately -158 dBm (DANL, which is dependent on resolution BW). It can easily fit within a standard briefcase with room left over for a medium sized laptop. Read More...

Test power ICs to survive radiation

In space, power-management ICs can be subjected to radiation. Testing can assure that a part will still function, even if the silicon structure is altered. Read More...

Scope bandwidth still confuses

In which we still can't figure out what scope bandwidth and risetime we need...or can we? Read More...

Quick & dirty cable length & impedance measurement

Can't afford a full-blown TDR? Here are a few quick & dirty measurement tips. Read More...

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