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The general structure of the electronic tensile testing machine is similar, it's nothing but sensors, control systems, propulsion systems, etc., but the specific configuration of the parts is still slightly different. The common configuration information of electronic tensile testing machines is as follows:
1. Sensor
Domestic high-precision electronic tensile testing machines generally use imported brand sensors, such as American Sequan, Transli, German HBM, GTM, etc. Electronic Tensile testing machines with an accuracy of Level 1 or below are equipped with sensors from domestic manufacturers, the accuracy is slightly inferior.
2. Control system
The electronic tensile testing machine is divided into three types of control systems, one is a microcomputer control model, which uses a PC-Computer used as the control center, and has a dedicated PC terminal control The software can be used together to test various functions; one is a microcomputer control model, with a built-in 16-bit and 32-bit single-chip microcomputer, with a built-in special single-chip control program, no need to connect to a computer, and a dedicated LCD screen to display the load - For the elongation curve diagram, some manufacturers also reserve a computer interface, which can also be controlled by a computer; the latter is digital, and the display part uses digital tube display, which can only do simple pull testing. The function is very single and belongs to the obsolete products.
3. Drive system
The drive system is synonymous with the heart of the electronic tensile testing machine, which is the necessary energy source for testing the testing machinee supplies, it is a Panasonic brand AC servo motor in Japan. This motor has good speed control characteristics, can realize smooth control throughout the speed range, and has very precise position control. It is the most widely used servo motor in high-end testing machines. Then there is the Taiwan Delta brand servo motor, which is also a brand with a good reputation. The quality of servomotors made by domestic manufacturers is uneven, so I will not describe them here. Of course, there are also stepper motors for driving, which lag behind servos in terms of control accuracy.
4. Lead Screw
Most electronic tensile testing machines have adopted a ball screw for power transmission. The ball screw has low friction, low wear and tear, and easy maintenance. The advantages of high precision. However, it is also written that the manufacturer has a Trapez screw used. This type of screw has a large coefficient of friction and is easy to wear, resulting in an increase in the gap between the screw and inaccurate measurement accuracy of the instrument basically a discontinued product, but not excluded, is used by testing machine manufacturers.
The usual configuration information of electronic tensile testing machine is as follows: Customers can pay attention to the configuration used in the manufacturer's recommended electronic tensile testing machine at the time of purchase.
