The electronic universal tensile testing machine, as the core equipment for material mechanical property testing, is widely used in mechanical testing such as tension, compression, and bending in fields such as metal, plastic, rubber, and textile. The scientificity and rationality of its parameter settings directly determine the accuracy, repeatability, and reliability of the detection data, which is a key prerequisite for ensuring that the detection results comply with standard specifications, supporting material quality evaluation, and research and development innovation. ​

The parameter settings of the electronic tensile testing machine need to be developed around the detection requirements and standard requirements. The core parameters can be divided into three categories: basic information parameters, mechanical control parameters, and data acquisition parameters. Basic information parameters include sample information and equipment basic configuration: sample information needs to be accurately entered into the sample name, specifications, thickness/diameter, gauge length, etc., especially the gauge length, which directly affects the elongation calculation result; The basic configuration of the equipment needs to confirm the sensor range and fixture type to avoid sample slippage or damage caused by mismatched fixtures. ​

Mechanical control parameters are the core of the detection process and need to be accurately set in conjunction with detection standards. One is the loading speed, which varies significantly among different materials and testing items. In the tensile test of metal materials, the elastic stage usually adopts a strain rate of 0.005-0.025s ⁻¹, which can be switched to a constant speed after yielding; Plastic materials often have a constant loading speed of 5-50mm/min due to their high toughness. The second is the selection of control modes, selecting stress control, strain control, or displacement control according to the testing purpose: stress control is suitable for testing the elastic modulus of materials, strain control is mostly used for yield strength and tensile strength testing, and displacement control is commonly used for elongation or fracture elongation testing. The third is the shutdown condition, which requires setting clear shutdown trigger thresholds, such as reaching the set stress/strain value, sample fracture, or reaching the maximum stroke, to avoid equipment overload or excessive sample damage. ​

The data collection parameters determine the integrity and accuracy of the detection data, requiring a balance between collection efficiency and data density. The sampling frequency needs to be adjusted according to the loading speed: for low-speed loading, the sampling frequency can be set to 10-20Hz, and for high-speed loading, it needs to be increased to 50-100Hz to ensure the capture of key data points such as yield point and peak force; The data storage interval can be set to 0.1-1s, which not only avoids system lag caused by excessive data volume, but also enables complete recording of mechanical performance change curves. ​

After the parameter settings of the electronic universal tensile testing machine are completed, a predictive test should be conducted to verify the deviation between the test results and the standard values. If the deviation exceeds the allowable range, the parameter settings should be rechecked and adjusted. At the same time, it is necessary to regularly calibrate the equipment to ensure that the basic conditions for parameter settings are reliable. ​