How should the microcomputer control loop stiffness tester operate? -Huaqiang Electronic Network

Single Chip Microcomputer STM32L151CCU6

Photocoupler

Microcomputer-Controlled Loop Stiffness Testing Machine

This is our latest generation of fully automated testing equipment, designed for precise and efficient mechanical property evaluation. The machine utilizes computer-based automatic control to display test data and real-time curves, with an external printer capable of generating detailed reports.

The main structure of the microcomputer-controlled loop stiffness testing machine features a dual-space design: the upper space is used for tension testing, while the lower space handles compression and bending tests. The crosshead can be smoothly raised and lowered, offering flexibility in testing different materials and configurations.

The transmission system uses an arc synchronous belt and screw drive mechanism, ensuring stable operation and minimal noise. The specially engineered synchronous belt reduction system, combined with a precision ball screw, guarantees smooth and accurate movement of the testing beam, eliminating any backlash during operation.

Electrical Measurement and Control System:

(1) Equipped with Panasonic AC servo drives and motors, this system ensures high performance, reliability, and built-in protection against overcurrent, overvoltage, overspeed, and overload. It supports a speed ratio of up to 1:100,000.

(2) Includes multiple safety functions such as overload, overcurrent, overvoltage, displacement limits, and emergency stop to ensure safe operation under all conditions.

(3) The integrated controller enables closed-loop control of test force, sample deformation, and crosshead displacement. It supports various control modes including constant force rate, constant displacement rate, constant strain rate, and constant load cycle testing, with seamless transitions between them.

(4) After the test, the machine can automatically or manually return to the initial position at high speed, improving efficiency and reducing downtime.

(5) Features automatic gear shifting, zero adjustment, calibration, and storage of physical zero and gain settings. All adjustments are digital, eliminating the need for analog components, resulting in a highly integrated control system.

(6) The electrical control circuit follows international standards and meets national testing machine requirements, providing strong resistance to interference and ensuring the accuracy and stability of test results.

(7) The system includes a network interface for data transmission, storage, printing, and remote access. It can be connected to an enterprise's internal LAN or the internet, enabling remote monitoring and data sharing.