Some of the money is also going to upgrading existing telescopes with new electronic detectors and computers.

At the focal point is some type of structure for holding a film plate or electronic detector.

Tom waited tensely as the crew fanned out with their electronic detectors.

Using highly sensitive electronic detectors, they were able to follow the asteroid for the unusually long time of six hours.

The attack registered first on several electronic detectors of the electric-eye type.

These patterns are recorded by special electronic detectors.

"The new systems just replace film with an electronic detector."

He spearheaded a revolution in which astronomers went from using photographic plates to much more efficient electronic detectors.

Another submarine had been picked up by the electronic detector and we steered around it automatically.

Babies are fitted with sensors that set off an alarm if a child is brought near electronic detectors installed by the door.