daviteq Lidar People Counter, Руководство пользователя

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Daviteq Ultrasonic Level - Distance Measuring Technologies
Daviteq ULA ultrasonic level sensor is a dual-transducer ultrasonic sensor to measure the distance from the sensor
surface to the object surface. Its design is dust and waterproof. Therefore the sensor can be installed in any trash bin
for indoor and outdoor applications. With a very small blind zone (only 3 cm), it can be used for a small trash bin.
It emits an ultrasonic pulse from the transmit transducer to the object, and the ultrasonic wave will reflect back to the
receiving transducer. The micro-controller will measure the time difference between the sound wave from the
transmitting transducer and the receiving reflected sound wave. From that, it calculates the distance by the following
formula:
D = ( Time x V ) / 2
Where
D: Distance from the sensor to object surface
Time: the time difference between the wave from the transmitting transducer until receiving the reflected wave
V: velocity of ultrasonic wave in the environment.
The effective detection range of the ULA sensor:
The tested object is the white cylindrical tube, the material is PVC, height is 100cm, diameter is 75mm:
The tested object is the carton board, placed in parallel with the sensor surface, carton board size is 60x50cm:
Daviteq ULA Ultrasonic Level
Sensor for Trash bin
1. Overview
2. Detail measurement principle and its
specification