How to adjust the electronic tension meter extensometer? What are the methods?

How to adjust the electronic tension meter extensometer? What are the methods? The extensometer occupies an important position in the operation of the electronic tension meter and can affect the test results. Some customers do not quite understand how to adjust the extensometer. Today, Haida Xiaobian shares the adjustment method for everyone:

1 , the flexibility of the fulcrum:

The use of ball bearings and extensometer arm connection, the general relative movement is more flexible, to see if it is normal, you can move the extensometer arm in the working state without clamping the sample to observe whether the movement is flexible, to further determine the bearing status, such as The problem can be replaced with this bearing.

2. The tightness of the clamped specimen:

The normal state should follow the deformation of the sample and move together. The guarantee of followability is mainly achieved through a set of springs. If the spring is not elastic enough, it will affect the holding force of the extensometer arm, which will cause relative slipping between the specimen and the extensometer. The resulting data must be smaller than the real data. The measurement error is caused, so it is very important to ensure the relative fixation between the specimen and the extensometer during the deformation measurement of the material.

    3 , the degree of lubrication of the grating measuring rod:

The grating is based on the weight of the grating rod to achieve the displacement measurement. During the continuous elongation of the sample, the grating rod will continue to elongate due to its own weight, and the corresponding displacement data will also be generated. If it is not enough lubrication, its own weight is insufficient to drive. The rod moves. Deviations in measurement can occur and maintaining the lubrication of the grating rod is also a very important adjustment method.

How to adjust the electronic tension meter extensometer? What are the methods? The above is the method of extensometer adjustment. Haida Instruments is implementing the "full-reliant" integrated service system. If you have other doubts, you are welcome to inquire!