Image: Entrance to Hertz chamber

Image: Entrance to Hertz chamber
Credit: Edgar Martins

The doorway out of ESA's Hertz test chamber, used to test the radio performance of large space antennas, as captured by photographer Edgar Martin.

Part of ESA's technical heart in the Netherlands, the metal-walled 'Hybrid European Radio Frequency and Antenna Test Zone' chamber is shut off from all external influences.

Its internal walls are studded with radio-absorbing 'anechoic' foam pyramids, allowing radio-frequency testing without any distorting reflections. In addition, this cladding also absorbs sound – making Hertz an eerily quiet place to work.

Portuguese-born Edgar Martins has collaborated closely with ESA to produce a comprehensive photographic survey of the Agency's various facilities around the globe, together with those of its international partners.

The striking results were collected in a book and exhibition, entitled The Rehearsal of Space and The Poetic Impossibility to Manage the Infinite.

Characteristically empty of people, Martins' long-exposure photos – taken with analogue wide film cameras – possess a stark, reverent style. They document the variety of specialised installations and equipment needed to prepare missions for , or to recreate orbital conditions for testing down on Earth.


Explore further

Image: Anechoic foam covering to simulate the endless void of space

Citation: Image: Entrance to Hertz chamber (2017, February 9) retrieved 21 April 2019 from https://phys.org/news/2017-02-image-entrance-hertz-chamber.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
7 shares

Feedback to editors

User comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more