a) This machine adopts a built-in controller to ensure that the ring stiffness tester realizes constant velocity displacement control.

b) AC servo motor is adopted, with stable and reliable performance, and protection devices for overcurrent, overvoltage, overspeed, and overload. The speed regulation ratio can reach 1:5000.

 c) Display mode: data and curves are displayed dynamically with the test process;

d) Curve traversal: After the test is completed, the curve can be re-analyzed, and the test data corresponding to any point on the curve can be found with the mouse;

e) Curve selection: The stress-strain, force-displacement, force-time, displacement-time and other curves can be selected for display and printing according to needs;

f) Test report: The report can be prepared and printed in the format required by the user; it has a network interface for data transmission, storage, printing records and network transmission printing,

Local area network or Internet network connection.

g) Limit protection: with two levels of program control and mechanical limit protection;

h) Automatic shutdown: After the sample is broken, the moving beam automatically stops;

i) Overload protection: When the load exceeds 3-5% of the maximum value of each gear, it will automatically stop.