NEWS 25 April 2024

Hybrid variable-reluctance actuator technology on-sky

Astronomers use deformable mirrors to improve the image of a telescope by correcting for the optical distortions caused by atmospheric turbulence.

Together with academic and industrial partners, TNO is working on technology to enable larger, more robust and more affordable systems. A sudden opportunity presented itself to demonstrate the technology in a real-life setting on a NASA telescope in Hawai’i. With smart re-use of existing hardware and building on existing design concepts, the team managed to get from project kick-off to system shipment in only one year, as described in this Mikroniek article. First light is planned for late April 2024. (Image courtesy of TNO)

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References

Order of frictions and stiffnesses…

For lumped systems consisting of different frictions and stiffnesses, there has been confusion in literature about hysteresis curves and virtual play for many decades.

Make it clean

In mid-April, the second edition of the Manufacturing Technology Conference and the fifth edition of the Clean Event were held together, for the first time, at the Koningshof in Veldhoven (NL).

Bringing particles to light

Particle contamination monitoring and cleanliness control are fundamental to micromanufacturing processes across diverse industries to achieve cost-effective production of high-quality and reliable microscale devices and components.