Technological applications of superconductivity

Some technological innovations benefiting from the discovery of superconductivity include sensitive magnetometers based on SQUIDs, digital circuits (e.g. based on the RSFQ[?] logic), Magnetic Resonance Imaging, beam-steering magnets in particle accelerators[?], power cables, and microwave filters[?] (e.g., for mobile phone base stations[?]). Promising future industrial and commercial applications include transformers, power storage, motors, and magnetic levitation devices. Most applications employ the well-understood conventional superconductors, but it is expected that high-temperature superconductors will soon become more cost-effective in many cases.