1. Overview of YAW-3000B microcomputer controlled electro-hydraulic servo pressure testing machine :

1. Host features

1)  This machine is a pressure testing machine with force closed-loop control, with constant stress control and load holding functions;

2)  This machine has the characteristics of fast response and high control accuracy;

3)  Within the range allowed by the machine, the user can set the loading speed arbitrarily according to the requirements of the test;

4)  The load cell is used in the force measurement system, which can fully ensure the accuracy and reliability of the test accuracy;

5) The  use of low-noise high-pressure oil pumps has the characteristics of low noise, which can make the workplace have a quiet environment.

6) The  hydraulic system adopts air-cooled device, which is suitable for long-term continuous work.

2. Main functions:

1)  Suitable for long-term, continuous work.

2)  Suitable for compressive strength test of cement, concrete and rock.

3)  Equipped with appropriate fixtures and measuring devices, it can meet the split tensile test, flexural test, and static elastic modulus test of concrete.

4) It  can be applied to metal compression and upsetting test;

5)  Multiple displacement (or deformation) measurement channels can be expanded according to user requirements.

3. Meet the standards:

1)  GB/T 7314-2005 Room temperature compression test method for metallic materials

2)  GB/T 17671-1999 Cement mortar strength inspection method (ISO)

3)  GB/T 50081-2016 Standard for test methods of ordinary concrete mechanical properties

4. Application industry:

   Metrology and quality inspection; machinery manufacturing; electronic appliances; automobile production; colleges and universities; scientific research laboratories; commodity inspection and arbitration and technical supervision departments; construction industry; other industries.

2. The main features of the microcomputer controlled electro-hydraulic servo pressure testing machine :

1. The  main machine adopts a four-column frame structure, which has good rigidity, stable experiment process and convenient operation;

2.  The load cell is used in the force measurement system, which can fully guarantee the accuracy and reliability of the test accuracy;

3. The  use of low-noise and high-pressure oil pumps can make the workplace have a quiet environment. The hydraulic system adopts air-cooled device, which is suitable for long-term and continuous work;

4.  Using high-speed DSP platform, its high integration, powerful control, data processing capabilities, and high reliability are unmatched by testing machines using other processors;

5.  Adopting a fully digital, three-closed loop (force, deformation, and displacement) control system based on neuron adaptive PID algorithm to achieve fully digital three-closed-loop control of force, deformation, and displacement. Each control loop can be automatically switched, and in each mode Realize smooth transition without impact when switching between;

6.  High-precision 24Bit data acquisition system, high resolution, can be extended to 8 channels of AD acquisition;

7. The  system board adopts 4-layer PCB unique anti-interference wiring method, which has strong anti-interference ability;

3. Technical parameters of microcomputer controlled electro-hydraulic servo pressure testing machine :