A Linear Stage Restricts the Movement of an Object to One Axis

A linear stage is a critical component when it comes to controlling the movement of an object to a single axis of motion. Any object can be moved in three different axes, but with this unique component, this movement can be controlled to any one axis. This unique component comprises a platform and a base that is joined by a linear bearing in order to restrict motion to a single axis. This motion is restricted to linear motion (motion in a straight line).

This very positioning system is also known as a linear slide. This system can either be manual or motorized, depending on who wants to use it and where it is required to be used. These components are used in applications such as microscopy, quality control and metrology where various objects need to be studied under a controlled environment.

Now that you are familiar with what this component is, let’s take a look at the features and the applications of a good linear stage.

• It should offer extreme precision, for which it often needs to be magnetically controlled. The magnetically coupled stages use the force of integrated magnets in order to preload the bearing.
• A good stage should have ultra-smooth functioning, uniform motion control as well as minimum friction. This ensures that the object question can be moved as precisely as possible.
• In a number of advanced stages, the technology differs. In these new-age stages, only one of the two linear bearings has a guiding function and the other groove is meant solely for support.
• In order to successfully carry out operations such as scanning and tracking, these linear stages should demonstrate accuracy in motion up to the last millimeter. While it is important to know the most important features and prerequisites of a linear stage, it is also important to know the factors that you should keep in mind when you decide to purchase such a stage. A well-manufactured component should demonstrate qualities such as extreme accuracy, good resolution and the ability to carry out repeated tasks with the same accuracy.

In addition, you should also check if the stage has the expected load-bearing capacity for motion control of heavy objects and whether it has good locking mechanisms to prevent objects from slipping or moving during a particular task. The costs of such components and their environmental sensitivity also play an important role in making the right purchase decision.

A linear slide provides the desired level of accuracy when it comes to micro and nano-positioning applications. Additionally, if you wish to achieve multiple axes of motion, you could couple one or more linear stage. However, it is advisable to consult a reputed manufacturer before you make a final purchase decision.