SAFE Dragsled accurately measures skids

Sept. 1, 2004
By applying the newest generation of electronic measurement to vehicle skid scenes, Massload has an effective new means of gathering and recording precise

By applying the newest generation of electronic measurement to vehicle skid scenes, Massload has an effective new means of gathering and recording precise data required for detailed analysis. All of this is achieved with a portable electronic measuring device that weighs l6 kilograms.

The Sample Accumulator for Friction Evaluation (SAFE) Dragsled replaces the use of tires, half-full of concrete, pulled along a surface while attempting to read a spring scale. This type of mechanical system has long been used in evaluating the cause and nature of skids.

A fully automated data acquisition device, the SAFE Dragsled can be used in any weather conditions. It requires as little as 18" of pull for accurate friction calculations due to the rapidity of electronic tension samples (up to 500 per second).

Powered by a standard “off the shelf” PDA, and using an infrared signal, the Dragsled system offers ease of use, and since it has no external wiring, substantially longer system life. The PDA can be integrated with other standard desktop software to produce a range of professional-level, “skid scene” reports.

For full details, contact Massload, 301-47th St East, Saskatoon, Canada S7K 5H2.