Faqs

It is a light source that illuminates a linear scale where the reflected light is collected by a detector. The incremental reading is translated into a physical value giving the system position [...]

This is an encoder measuring the rotation inside a DC motor which drives the moving platform. It is a cost-effective solution for closed-loop systems, but as it is an in-direct measurement it [...]

A motion component without any position feedback (see What is a closed loop system).

For motion components with a position detector a commanded position or motion profile is corrected by measuring the deviation of the current position from the target position. For such system a [...]

Defined as the statistical value of the error bandwidth of a commanded position for a positioning component or system. There are several ways to measure this and can be further divided into [...]

Defined as the difference between the actual position and the commanded position.

Defined as the spread of repeated measurements under unchanged conditions.

Even though some stages seemingly appear comparable there are several aspects which are not typically easy to find in a datasheet that you need to consider when making a choice. Working [...]

Defines the length the component (stage) can move. Most stages are equipped with limit switches stopping the motion avoiding mechanical collision. The travel range should always be considered as [...]

A component that includes a moving platform, drive, guiding and sometimes a position detector. For most cases a stage can move in one dimension being linear or rotational. A stage can even move [...]