Mechatronics

Conventional space systems contain a lot of electronics while mechanical systems are avoided as much as possible, because of a chance of failure, for example, due to the lack of lubrication options.. This trend is changing, as new space applications may require a reliable and precise movement of parts or entire sub-systems. For example, the James Webb telescope used an unfolding mechanism to make the primary mirror more compact for launch. Also, individual mirror segments are positioned and warped individually, requiring a highly precise motion. Also, laser satellite communications systems require precision pointing systems, up to microradian accuracy. 

Currently we are active in the application of laser satellite communications. We are working both on ground systems as well as space systems. Examples of research on laser satellite communications can be found here. In addition, deployable systems could be used for space interferometers, see here. Another well-known mechatronic system in spacecraft is the attitude determination and control system (ADCS), which is needed for navigation. These systems require sensory information about their state (attitude and position), actuators to acquire the proper position and a control system, to provide the actuators with the correct control commands.

The development of these systems aims for various applications, such as to: 1. Support the increase scientific knowledge about e.g. exoplanets, 2. Support the societal need for safe and broadband communications services and 3. Improve navigation systems. Hence, this topic is of high societal importance. In our Section, we are contributing to future developments by researching novel (opto-) mechatronic architectures, low Technology Readiness Level (TRL) technologies and investigating the environment where these systems will be placed, for example, the space environment for satellite systems and the atmosphere for ground support equipment.