4MHz Underwater Ultrasonic Transducer for 1M Depth Measurement

4MHz Underwater Ultrasonic Transducer for 1M Depth Measurement

Technical parameters:

Block diagram of ultrasonic transducer :

Schematic Diagram of Temperature Sensor (model: MF58_502F3470):


Integrated type Cable instruction:   

1.Wiring instruction of transducer: interface (3pin, 2.54mm terminal)
Red: transducer +      
White: transducer -         
Black: shielding


2.Cable Instruction of Temperature Sensor: interface (3pin, 2.0mm terminal)

Red and black are temperature sensor wiring

Split type: standard 10m cable, with each additional 50m of cable, the signal attenuation is 6dB

Three-core wiring instructions:                
                        
    Red: Transducer +
     Blue: temperature sensor +
     Black: Public-

 Four-core wiring instructions:

Red: Transducer +                      
Yellow: Transducer-
Blue, black: temperature sensor

Underwater distance measurement Application:

Ultrasonic detectors find the distance between the seabed and the surface of the water. To measure the level, depth, with an ultrasonic range detector, the module is mounted at the bottom of the sea, seabed, looking up the surface. We must measure the time between the transmit pulse and the echo received pulses. Since the ultrasonic signal is traveling at the speed of sound, the time between transmission and echo received is a measure of the distance to the surface, water depth. A micro-controller sends a pulse to the ultrasonic module. The module transmits an ultrasonic wave for a short period of time and waits to receive its echo. As soon as the echo is received at the ultrasonic module, a pulse is sent to the micro-controller, which measures the time between two pulses. There are two modes of operation, program mode and run mode. When the unit is powered, it is programmed to start up in the run mode, to detect the distance from the transducer face to a target depth in meters.