The XR 400 Snowmobile Histographic Accelerometer quantitates
the differences in ride quality of different snowmobiles (or other vehicles),
allowing the production of graphs which clearly indicate how various machines
respond to bumps of diverse size.
The XR 400 Accelerometer is superior to other accelerometers
in that it responds to bumps in a manner very similar to that of the human
body. Extensive testing has demonstrated that
other accelerometers yield data that often does not correlate well with
the perceived ride quality. The XR 400 Accelerometer was designed
to accurately reflect accelerations as the body perceives them.
Today's snowmobilers are increasingly sophisticated and look for a snowmobile
magazine to give them objective data—not subjective opinions. Until
now, there has been no convenient way of quantifying the smoothness of
a snowmobile's ride. Those days are over. Strap on the XR 400
Accelerometer, and give enthusiasts a new reason to read your magazine!
Batteries: five 1.5V button cells, type 386 or SR43
Battery life: Typically 4 years @ 68 degrees F
Displays: five 4-digit 6 mm LCDs
Display environmental protection: IP40/DIN40050
Dimensions: 5.4 x 5 x 1.7 inches
Weight: 390 grams = 0.86 lb.
Storage temperature: 14 to 122 degrees F.
Note: when not in use, indoor storage at a nominal 70 degrees F is
The manufacturer reserves the right, at any time, to change
specifications, features, designs, models, equipment, and accessories (both
standard and optional) without incurring obligation.
Differential Ride Quality Analyzer
the XR 400 Accelerometer described above, the Differential Ride Quality
Analyzer (DRQA) measures ride quality, but it also simultaneously
"maps" the terrain that is traversed by the snowmobile, thus
obviating the need to run all of the test snowmobiles over the same course
at the same speed. By analyzing how a snowmobile's suspension reacts
to a variety of bumps and by comparing this suspension profile to that of
competitive snowmobiles, snowmobile journalists can offer their readers
highly scientific, informative, and interesting analyses of ride
quality. The DRQA can also benefit manufacturers of aftermarket rear
suspensions, enabling them to furnish potential customers with objective
evidence of the merits of their products.
For further information, contact:
Dr. Kevin Pezzi