How is the gauge of the electronic tensile tester automatically measured? 1 installed in the holder; Ningxia Xinshuncheng Special Alloy Co., Ltd. , https://www.xinshunchengalloy.com
2 on the sample.
Compared with the automatic measurement of the gauge length, it is more conducive to the detection of rubber tensile properties. Electronic tensile testing machine Many automatic gauge measuring devices for rubber tensile testing machines use contact sensors to measure the change of gauge length in real time. There are two main installation positions for sensor mobile devices:
The sensor that mounts the mobile device to the holder has certain limitations. Since the elastic deformation of the rubber is very large, the moving distance of the gripper and the variation of the gauge length of the sample are greatly different. The gauge tester mounted on the gripper is more suitable for detecting the elastic deformation. The tensile properties of the specimen (such as metallic materials) cannot be used to test the tensile properties of the rubber.
The electronic tensile testing machine adopts the contact gauge length measurement method, which will have a great influence on the tensile test of the sample. The reasons are as follows:
First, the self-weight of the gauge rod contacting the sample will pull the sample down, affecting the tensile force measurement;
Second, the clamping of the gauge rod has a certain influence on the stretching of the clamped portion, so that it cannot be freely stretched. 