The linear encoder has good dynamic performance, high speed reliability, high temperature performance and high durability. These characteristics make it meet the high dynamic performance requirements of the drive equipment and have a long service life.
Its temperature characteristics are more and more important, generally consistent with the object being measured. When the temperature changes, its expansion or contraction characteristics must be determined and valued. Faster and more accurate delivery of the feed requires higher rigidity, which is an important factor in achieving high quality and high precision motion trajectories.
The linear encoder is designed with various details in mind, making it long-life, because it uses a non-contact photoelectric scanning method to scan the reference, and the positive pressure environment is supported by compressed air to make it highly resistant to pollution. The protective measures ensure a high level of resistance to electrical noise.
Linear encoders do not have any mechanical wear during the measurement process, which eliminates the following potential sources of error:
(1) Positioning error caused by the temperature characteristics of the ball screw;
(2) reverse error;
(3) Motion characteristic error caused by the pitch error of the ball screw.
Therefore, linear encoders have become an indispensable condition for high-precision positioning and high-speed machining.
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