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AN597 - Implementing Ultrasonic Ranging

Features

  • 2000 mA 200 400 7 ms Min. Typ. Max. 1 100 0.4 Unit mA µA V V V © 1995 Microchip Techn.

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Datasheet Details

Part number AN597
Manufacturer Microchip
File Size 76.00 KB
Description Implementing Ultrasonic Ranging
Datasheet download datasheet AN597 Datasheet

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www.DataSheet4U.com AN597 Implementing Ultrasonic Ranging Author: Robert Schreiber Logic Products Division THEORY OF OPERATION Ultrasonic ranging entails transmitting a sound wave and measuring the time that it takes for the sound wave to reflect off of an object and back to the origin. The reflection time is proportional to the distance that the object is from the source. In this implementation, the sound wave is transmitted and received from the same transducer. Therefore, a blanking interval is required between signal transmission and reception to eliminate false echoes (i.e., a transmitted signal being detected as its own echo). INTRODUCTION Object ranging is essential in many types of systems. One of the most popular ranging techniques is ultrasonic ranging.
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