How does the material of the code disk influence encoder durability?

The material used for the code disk is critical for determining both the durability and precision of an optical encoder. Traditionally, glass disks are favored for high-resolution applications due to their dimensional stability and precision. However, for environments where impact or vibration is a concern, plastic or metal disks are more durable. Plastic disks are lightweight and resistant to shock, while metal disks offer superior strength and resistance to deformation. Selecting the right material involves balancing precision with environmental durability, especially in industrial or outdoor applications where the encoder may face extreme conditions.