All electronic instrumentation
is solid state.
User friendly, menu-driven software allows the operator to enter and
document multiple test parameters.
The on-board laptop computer
computes the dynamic Skid Number (SN) from the two-axis force transducer in
real time, and displays the friction and speed traces for each test.
Test headers, skid numbers, as well as curves and peak incipient friction if
desired, can be printed or stored.
Additional software
capabilities include automatic system calibration, full system diagnostics,
adjustable test cycle timing (within
ASTM-E274 specifications), as well as the ability to exit the program
and use commercially available software.
Vehicle Instrumentation
The system is equipped with digital optical encoders to accurately measure
distance and monitor test speeds, a hand remote switch to initiate the
automatic test, an industrial rated PC and graphics printer.
Real Time Dynamic Skid Curve
The operator can display all test results both graphically
and numerically.
The computer automatically controls all phases of the friction testing
cycle.
All test results can be displayed and saved to disk.
Auto Calibration Menu
Auto Calibration allows the operator to automatically calibrate the
electronic measurement equipment with the two-axis force transducer.
The system's computer calculates the gain and the offset values for the
force transducer and graphically displays the results.
