The Design of Ultrasonic Range Finder.

Electronic rangefinder measurement scope in 0.10 ~ 5.00 m, 1 cm measurement precision, measurement with no direct contact with the object to be tested, able to display measurement results clear and stable. Because ultrasonic directivity is strong, energy consumption is slow, in the medium transmission distance is farther, so ultrasonic often used for distance measurement, such as range finder and level measurement instrument can be done by ultrasound. [ABSTRACT FROM AUTHOR]