Causes of Poor Repeatability in Magnetic Grating Rulers

Magnetic grating rulers are commonly used for measurement and positioning, but poor repeatability can occur. Possible causes include:

1. Unstable installation: If the ruler is not firmly mounted, measurement deviation can occur, affecting repeatability.

2. Damaged read head: A worn or damaged read head can produce inaccurate readings and degrade repeatability.

3. Electrical connection issues: Poor cable contacts or short circuits can cause unstable signal transmission and reduce positioning accuracy.

4. Environmental factors: Electromagnetic interference, large temperature changes, or dust can all impact accuracy and repeatability.

5. Product quality issues: Low-quality rulers or manufacturing defects may cause unstable measurement performance.

To address these issues, regularly inspect and maintain the ruler, ensure stable mounting and good electrical connections, and choose high-quality products to improve repeatability.