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[Editorial]
USB Provides Quick Measurement Solutions

Jack Browne  |  ED Online ID #21450 |  July 1, 2009

All throughout the show floor at the 2009 Microwave Theory & Techniques Society (MTT-S’s) Symposium & Exhibition in Boston, test and measurement companies large and small were touting instruments based on a Universal Serial Port (USB, version 2.0) connection to a personal computer running graphical user interface (GUI) software. The beauty of a USB RF/microwave instrument is that the PC and software serve as the “intelligence” and control for the instrument, saving the cost of developing a front panel, display screen, and controls.

The first set of USB RF/microwave instruments focused largely on power measurements, with GUIs controlling combinations of RF/microwave power sensors/meters. But as the idea has grown, instrument makers and even some component suppliers (such as Mini-Circuits) are offering measurement equipment based on the popular USB 2.0 interface. Instruments include frequency counters, signal generators, and even a 9-GHz spectrum analyzer (see story below). As many equipment developers are coming to realize, with just a laptop computer and a handful of USB measurement instruments, an engineer could assemble a multifunction measurement system that could be quickly transported anywhere in the workplace.





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Reader Comments

This is a new era in Instrumentation!!

Rutman -July 04, 2009   (Article Rating: )

USB is definitely one candidate to replace IEEE-488 for Instrument control. It is fast, lightweight and uses mass market components making it truly affordable. However, it is not 'factory proof', and interactions between PC components and test instruments occasionally give unpredicatable performance.

timbo -July 02, 2009   (Article Rating: )

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