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  5. triflex in the spectrograph

A new look at the origin of the universe

Researchers at the University of Lisbon use e-chains for a new type of multi-object spectrograph

gold vector
Winner of the golden vector award 2024: How did galaxies form? Where do exoplanets with life-friendly conditions exist? A multi-object and near-infrared spectrograph from the Institute of Astrophysics and Space Sciences at the University of Lisbon is expected to provide answers. The engineers rely on energy chains from the igus triflex series for the precise and trouble-free movement of the sensitive optical fibres. For the jury of the vector award 2024, the most spectacular e-chain application. 

Profile

  • What was needed:  Energy chains made of high-performance plastic from the triflex series
  • Requirements: The optical fibres of the spectrograph may only be subjected to low loads during movement. In addition, the guidance must work reliably under high ozone levels. 
  • Industry: Aviation technology
  • Success for the customer: The cable guidance works so precisely and gently that it does not interfere with scientific observations. The solution is fail-safe even with permanently high ozone levels. 

Problem

The multi-object and near-infrared spectrograph of the Institute of Astrophysics and Space Sciences at the University of Lisbon has a field of view the size of the moon and can simultaneously observe over 1,000 objects in the visible and near-infrared wavelength range. In future, it will be used in the Very Large Telescope (VLT), one of the world's most advanced telescope arrays in the mountains of the Atacama Desert in Chile. The spectrograph is the result of a long development process with various design challenges. One of them was the safe guidance of the sensitive optical fibres that transport the light from a rotating front end to the spectrograph. Even the smallest loads can lead to a falsification of the measurement results. In addition, the cable guidance must work reliably at an altitude of 2,670 metres under high ozone levels in order to prevent expensive system failures.  

Solution

In order to guide the optical fibres safely from the rotating front end to the spectrograph, the researchers at the Institute of Astrophysics and Space Sciences at the University of Lisbon rely on energy chains made of high-performance plastic from the igus triflex series. The e-chains ensure that the fibres are not exposed to any stress during movement that could jeopardise the scientific observations. According to the engineers, the energy chains fulfil this important task reliably even at an altitude of 2,670 metres and under high ozone levels and extremely low humidity. 
"igus supported us in the initial search for a 3D solution and in obtaining information about the material properties to validate their application. This support was very useful to help with the final implementation of the solution."
Institute of Astrophysics at the University of Lisbon 
Energy chains
Energy chains
Energy chains

名稱 "Apiro", "AutoChain", "CFRIP", "chainflex", "chainge", "chains for cranes", "ConProtect", "cradle-chain", "CTD", "drygear", "drylin", "dryspin", "dry-tech", "dryway", "easy chain", "e-chain", "e-chain systems", "e-ketten", "e-kettensysteme", "e-loop", "energy chain", "energy chain systems", "enjoyneering", "e-skin", "e-spool", "fixflex", "flizz", "i.Cee", "ibow", "igear", "iglidur", "igubal", "igumid", "igus", "igus improves what moves", "igus:bike", "igusGO", "igutex", "iguverse", "iguversum", "kineKIT", "kopla", "manus", "motion plastics", "motion polymers", "motionary", "plastics for longer life", "print2mold", "Rawbot", "RBTX", "readycable", "readychain", "ReBeL", "ReCyycle", "reguse", "robolink", "Rohbot", "savfe", "speedigus", "superwise", "take the dryway", "tribofilament", "triflex", "twisterchain", "when it moves, igus improves", "xirodur", "xiros" 和 "yes" 是 igus® GmbH/科隆在德意志聯邦共和國以及某些外國適用的情況下受法律保護的商標。這是商標的非詳盡清單（例如igus® GmbH 或igus®在德國、歐盟、美國和/或其他國家或司法管轄區的附屬公司的待審商標申請或註冊商標。

igus® GmbH points out that it does not sell any products of the companies Allen Bradley, B&R, Baumüller, Beckhoff, Lahr, Control Techniques, Danaher Motion, ELAU, FAGOR, FANUC, Festo, Heidenhain, Jetter, Lenze, LinMot, LTi DRiVES, Mitsubishi, NUM, Parker, Bosh Rexroth, SEW, Siemens, Stöber and all other drive manufacturers mentioned on this website. The products offered by igus® are those of igus® GmbH.