The conditions of the tensile testing machine working environment are critical to the accuracy of the experimental data Um Therefore, in order to obtain more accurate original data, it is necessary to strictly comply with the relevant working environment requirements of the tensile testing machine.
Experimental environment of a tensile testing machine The requirements can be roughly divided into the following aspects:
1 The stability of the supply voltage. The supply voltage of the laboratory must be stable and not fluctuate too much, in general the range of fluctuation should not exceed ±10% of the voltage.
2 The levelshealth of the ground. The floor on which the tensile testing machine is placed must be level and corrected with a leveling knife when setting up the device to ensure the coaxiality of the upper and lower attachment of the device.
3 Instrument fixation. The placement of the tensile testing machine must be fixed to avoid vibration during the experiment, otherwise the sensitivity of the sensor and hence the experimental data will be affected.
4 External environment stability. The tensile testing machine is a high-precision instrument. The environment outside the instrument should be dry, not too humid, the temperature should be appropriate or contain corrosive substances, otherwise it will affect the life of the instrument.