SEMI-ANECHOIC SHIELD ENCLOSURE (IMAGE) Southwest Research Institute Caption SwRI’s new semi-anechoic shield enclosure is designed to perform electromagnetic compatibility and interference and radio frequency testing for spacecraft. The wall and ceiling coverings absorb radio frequencies, allowing researchers and engineers to measure the performance of various electronic components. Credit Southwest Research Institute Usage Restrictions Images/Videos may be used by the public for educational and informational purposes only. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.