Top rod: Fixed a steel ball of Ф6.25±0,05mm diameter on the top end.
Relative speed between steel ball and clamp: 12±2mm/miin
Continuous monitor records piston's displacement starting from zero, timely, displacement sensors of extend height, accuracy: ±0.05mm
Continuous monitor records the force sensor of piston forced, range of 0-1000N, accuracy:
±5N
±5N
When sample shows cracks and breakings, the accuracy error is within ±3% for test device.
