Ultrasonic system for accurate distance measurement in the air

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Abstract

Highlights

★ This paper presents a system that accurately measures the distance travelled by ultrasound waves through the air. ★ The designed system provides a tool for non-contact distance measurements. ★ Method could be used for contactless investigation of the surface. ★ Transducers with front layer works as an acoustic lens focusing energy in front of the transducer.

This paper presents a system that accurately measures the distance travelled by ultrasound waves through the air. The simple design of the system and its obtained accuracy provide a tool for non-contact distance measurements required in the laser's optical system that investigates the surface of the eyeball.

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