Design of Height Measuring Instrument Based on Ultrasonic Waveform

Abstract:

The modular design is adopted in the whole circuit. The AT89S52 single chip microcomputer (SCM) is used as the main part of the controller. The hardware circuit mainly contains ultrasonic emission-receiving module HC-SR04, temperature detecting circuit, liquid crystal display (LCD) circuit and alarm circuit. Signals of the emission probe and the receiving probe are synthetically analyzed by using SCM. The purpose of measuring the body height is realized by using the time difference between two times receiving ultrasonic wave. and it has the advantages of low cost, easily measuring, and short measuring time. The accuracy of the system can be reached to 1 cm, and the measurement range is between 0.50 m and 4.00 m, which can completely meet the design requirement of height measuring system.

• Periodical: Applied Mechanics and Materials (Volume 329)
• Pages: 308-311
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.329.308
• Online since: June 2013
• Authors: Tao Zhang, Yong Le Ai, Hai Yang Zhang
• Keywords: AT89S52, Height Distance Measurement, Ultrasonic Wave (UW)

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