"They perceive their world by sending out sonic pulses and listening to the echoes."

Jerks of his trigger finger shot sonic pulses deep into the fugueship's brain.

A modulated sonic pulse at a frequency below the range the human ear can pick up produces fear reactions.

When a sonic pulse went downward, the whole footing might tremble.

A quick sonic pulse indicated that it was a single layer of brick.

Attached to each mooring is a transmitter of sonic pulses and a receiver.

I thought it was a sonic pulse for scaring rodents.

She had modified it so that it would emit a sonic pulse.

After a sixty-second sonic pulse, the main reactor will go critical and blow.

Just as the admiral had described, the device would generate a sonic pulse.