Principle and Application of Underwater Ranging Transducer

 Principle and Application of Underwater Ranging Transducer

 

Principle of Measurement

 

The ultrasonic wave emitted by the ultrasonic probe is transmitted through water, meets the target to be measured, is reflected and then returned to the ultrasonic probe through water, because the time of transmission and reception can be known, according to this time × speed of sound ÷2= the distance between the probe launching surface and the target to be measured.

 

Computational Formula: D ＝ C*t/2

 

(Divided by 2 because the sound wave actually travels back and forth from transmission to reception, where D is the distance, C is the speed of sound, and t is the time).

 

If the time difference between transmission and reception is 0.01 seconds, the speed of sound in fresh water at room temperature is 1500 m/s.

1500 m/s x 0.01 s =15 m

15 meters ÷2=7.50 meters

That is, the distance between the probe launching surface and the measured target is 7.50 meters.

 

 

Application

 

1. ‌ Underwater Engineering ‌ : In the bridge construction, port development, offshore platform construction and other underwater engineering projects, underwater ranging transducers are used to determine the water depth in the construction area, ensure construction safety and prevent accidents ‌.

 

2. ‌ Swimming Pool Cleaning Robot ‌ : By assembling underwater ranging sensor, swimming pool cleaning robot can accurately position and plan the path to ensure that every corner of the swimming pool can be cleaned, improve cleaning efficiency and effect.

 

3. Environmental Monitoring ‌ : In water quality monitoring and ecological research, underwater ranging sensors can be combined with other sensors to monitor changes in water bodies in real time and help researchers scientifically analyze underwater ecosystems.

 

4. Vehicle Wading Depth Detection ‌ : The underwater ranging sensor can be used to measure the wading depth of the vehicle to ensure the safety of the vehicle.

 

Technical details, Underwater ranging sensors usually use ultrasonic technology to locate and range using the propagation characteristics of sound waves in the water. The propagation speed of sound wave in water is about 1500 meters per second, and the directivity is strong and the attenuation is small, which makes the sound wave has high accuracy in underwater detection and the ability of long-distance propagation.

 

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