Feature:Controlled by singlechip, data setting of confining pressure and backpressure is 
by keyboard input., elavation of main frame is controlled. Main frame is driven by servo 
motor, and shearing rate is variable. 
Parameters:
1. Axial force: 0-10kN, measurement 
accuracy: ±1%
2. Shear rate: 0.001-5.000mm/min
3. Specimen size: Φ39.1×80mm
4. Confining pressure: 0-1MPa
5. Backpressure: 0-1MPa
6. Aperture pressure: 0-1MPa
7. Volume change: 0-50ml
Features: computer control, curves and test reports can be printed