What are four possible causes of mechanical problems that can result in a wandering baseline?

A wandering baseline in mechanical systems can be caused by several factors:

1. Vibration or Movement: External vibrations or shifts in the equipment can lead to fluctuations in readings.
2. Temperature Variations: Changes in temperature can affect the materials and components, causing them to expand or contract and altering the baseline.
3. Electrical Noise: Interference from nearby electrical equipment or poor grounding can introduce noise, resulting in an unstable baseline.
4. Wear and Tear: Mechanical wear or damage to components can lead to misalignment or improper function, causing baseline drift.