DRK128B touch color screen friction resistance test measurement and control instrument (hereinafter referred to as the measurement and control instrument) adopts the latest ARM embedded system, 800X480 large LCD touch control color display, with high precision and high resolution, simulating a microcomputer control interface, simple and convenient operation, Greatly improve the test efficiency. The performance is stable, the function is complete, the design adopts multiple protection systems (software protection and hardware protection), which is more reliable and safer. Simultaneous display of counting and timing; The test can be carried out by counting times or timing; Test results can be printed; The main technical parameters:

Parameter Item	Technical Indicators
Speed ​​Range	43 times/minute
Counting Range	0－9999
LCD Display Life	About 100,000 hours
Number of effective touches of the touch screen	About 50,000 times

  Experimental procedure: 1) Parameter setting Check the test parameters before the test, and reset the test times and test time if necessary. 2) Test preparation Return to position to return the friction head to the initial position and place the sample. 3) Test Touch the "Test" button, the friction head will move at the specified test speed and count at the same time until the set time or set times, the test ends.