ULTRASONICS - HOW THE DOPPLER EFFECT WORKS

• NCJ Number: 26364
• Journal: Security World Volume: 12 Issue: 7 Dated: (JULY-AUGUST 1975) Pages: 20,134-135
• Author(s): E FUSS
• Date Published: 1975
• Length: 3 pages
• Corporate Author: Security World Publishing Co, Inc
• Publication Format: Article
• Language: English
• Country: United States of America

Annotation

EXPLANATION OF THE OPERATION OF BASIC ULTRASONIC INTRUSION OR MOTION DETECTORS, PLUS FOUR ILLUSTRATIVE DIAGRAMS.