Available in Autonomous and Manned OperationsENSCO has produced more than 40 Instrumented Wheel Sets (IWS) for passenger cars, freight cars, and transit cars since 1975. ENSCO’s IWS uses a fully calibrated strain gauge array that produces real-time vertical, lateral and longitudinal wheel/rail force measurements. The IWS also measures the wheel/rail contact location.

The IWS provides a continuous measurement at all speeds and flag exception locations when parameters exceed set thresholds. ENSCO’s IWS has been successfully used to qualify many passenger and freight cars.

The IWS is used both at customer locations and at the Transportation Technology Center (TTC), which often uses IWS with vehicle testing occurring at the site.

ENSCO has extensive experience conducting vehicle qualifications and instrumented wheel set testing throughout the railroad and transit industry. Additionally, ENSCO has an internal team of vehicle/track interaction professionals, who support interpreting the IWS data and conduct vehicle/track interaction simulations, using programs such as VAMPIRE®.

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Contact us | Locations

U.S. Government Sales
Ruben D. Peña B.

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 1-703-321-4487

North American Sales
Acacia Reber

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 1-570-728-7998

International Sales
Bernhard Metzger

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 1-757-828-6538


ENSCO Rail, Inc. and ENSCO Rail Australia Pty Ltd are wholly owned subsidiaries of ENSCO, Inc. The ENSCO Rail subsidiaries provide the products and services to commercial customers.