5 factors affecting the pros and cons of electronic universal testing machines

by:Sinowon     2021-07-24
5 factors affecting the pros and cons of electronic universal testing machines
The      electronic universal testing machine is a device often used by researchers. When purchasing experimental instruments, you must choose the high-quality one, otherwise it will affect the subsequent scientific research data. How should we distinguish the pros and cons of the electronic universal testing machine? First, we can observe the appearance of the electronic universal testing machine, and then find some materials to test its tensile and compression effects. Here are five factors that affect the pros and cons of the electronic universal testing machine.  The ball screw, sensor, motor, software and hardware, and transmission system of the electronic universal testing machine are important parts of the testing machine. How to choose a high-quality testing machine, these 5 factors play a decisive role.  1. Ball screw: The screw currently used by the electronic universal testing machine includes a ball screw and a trapezoidal screw. Generally speaking, the clearance of the trapezoidal screw is relatively large, the friction force is relatively large, and the service life is short. At present, some manufacturers in the market will use trapezoidal screws instead of ball screws in order to save costs and obtain greater profits.  2. Sensor of electronic universal testing machine: The sensor is an important part of the accuracy and stability of the testing machine. At present, the sensor types of electronic universal testing machine on the market include S type and spoke type. The accuracy of the internal resistance strain gauge of the sensor is not high, the glue used to fix the strain gauge, the poor anti-aging ability, and the bad material of the sensor will all affect the accuracy of the sensor.  3. Testing machine motor: High-quality electronic universal testing machine motor adopts AC servo speed control system, Panasonic AC servo motor, stable and reliable performance, with overcurrent, overvoltage, overload and other protection devices. At present, there is also an electronic universal testing machine on the market that uses ordinary three-phase motors or variable frequency motors. This kind of motor uses analog signal control, which has slow control response and inaccurate positioning. Generally, the speed adjustment range is narrow. There is no high speed, and the speed control is not accurate. 4. Electronic universal testing machine software and hardware: The high-quality electronic universal testing machine uses a brand computer, and the control system software is the operating system platform. It has the characteristics of fast running speed, gentle interface, simple operation, etc., which can meet the test and measurement needs of different materials. Test the physical properties of various materials according to national standards, international standards or industry standards.  5. Transmission system: There are two main types of transmission parts of the electronic universal testing machine. One is the arc synchronous gear belt and the precision screw pair transmission; the other is the ordinary belt transmission. The first transmission mode has stable transmission, low noise, high transmission efficiency, high precision and long service life. The second transmission mode cannot guarantee the synchronization of the transmission, so the accuracy and stability are not as good as the first transmission system. In summary, there are 5 factors that affect the pros and cons of electronic universal testing machines. Users can refer to the above articles when choosing. If you have any questions, you can call us through the web, and we will arrange the technology. The staff will answer in detail for you. We have a professional pre-sale, in-sale and after-sales service team to provide strong technical support to users at home and abroad. Welcome new and old customers to visit and negotiate!   

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