Measurement precision of spring testing machine from the following aspects to set
1, a force value sensor acquisition: now the sensor testing machine with domestic and imported; according to the different machining precision; imports than domestic has certain advantages; according to the spring testing machine standard (Level 1) to see little advantage.
2, the displacement of the acquisition: spring testing machine manual is output through a grating ruler; precision (0.005mm) can also be. Automatic control and microcomputer is output by the encoder; the two methods can reach the national standard.
3, speed control: manual has certainly error; after all, is man-made to operate. Automatic and computer control is to control the motor speed is relatively stable; his experiment. Can achieve "fast feed, slow acquisition" function; this is a progress in the process of test.
In fact, in general; have a certain impact test machine is with the above three reasons; the processing and installation of machinery spare part is actually the most important; there are parts of the material, a welded steel and cast iron; the main components that use imported; will only increase the credibility of us actually made; to meet the requirements; so please don't because of the above three parts with imported even with a high accuracy as much as possible; it is highly configurable;

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