• View or download the VXIbus specifications including the latest version VXI-1 Revision 4.0.
• Find VXI application stories in a diverse number of markets, as well as links to white papers and articles.
• Contact VXIbus Consortium members and also view the ByLaws and VXI membership application.
• Check out the latest press releases, newsletters, and events.

 The Staying Power of VXI

By Tom Sarfi, VTI Instruments

VXI is still a very important platform for the large Mil/Aero testers it was designed to address.  There is an enormous installed base and investment in system integration of VXI products in Mil/Aero, where a great deal of the switching, stimulus, and measurement is handled by VXI.   Here is a list of the major core ATE test systems used by the DOD, where VXI products have significant presence:

USAF – VDATS, B-1B ARTS
Army – IFTE/NGATS
Navy – RT-CASS, eCASS
USMC   - TETS
Lockheed/USAF – LMSTAR (JSF/F35)

Mil/Aero programs move at a much different pace due to the complexity of the devices they are testing, as compared to consumer products.  These Mil/Aero devices and test systems require long-term support, which is a value often ignored when making market predictions and growth. With continuing USA budget constraints and multi-year extensions of existing programs, it is unlikely major changes to system architectures will occur any time soon.  That is, if a test system is doing its job, it is much more difficult to acquire funding for new projects or technology refresh or replacement programs, especially since re-hosting and requalification represent significant investment.   These programs will continue to invest in VXI to keep test systems alive and meeting test requirements. 

Read more >>

On Road Vehicle Testing

VTI Instruments

O v e r v i e w
Automobiles, trucks and railroadengines require on-road testing to verify their design. Characterizing a variety of parameters can lead to better and more efficient vehicles. Often the electronic circuitry used to control the engine can be improved for better economy.

P r o b l e m
A mobile system with high reliability is needed to withstand road test conditions and still provide accurate measurements. Electronic noise introduced by the operating vehicle must not adversely affect measurements. Large amounts of data must be stored for subsequent analysis in the lab.

S o l u t i o n
VXI Technology Data Acquisition equipment can withstand less than ideal conditions and still make accurate measurements. By using VTI scaning digitzers, low level (millivolt and microvolt) measurements can be made in the presence of electronic noise. High reliability is an important attribute of VTI data acquisition and control systems. When coupled with a computer and disc drive, the system can make measurements, perform some real time analysis, and store large quantities of data for later in-depth analysis.

Read more >>