40khz Ultrasonic Depth Sensors , Dual Frequency Depth Measurement Ultrasonic Transducer
   
   	 		 			| Brand Name: |  			Hurricane |  			Certificate: |  			CE ISO |  		
 		 			| Parallel Resistance (Minimum): |  			50±30%(Ω) |  			Usage: |  			Underwater Sensor |  		
 		 			| Working Temperature: |  			-20~70℃ |  			Case Material: |  			ABS |  		
 		 			| IP Level: |  			IP68 |  		
 		 			| High Light: |  			 			fish finder sensor 			,  			underwater sensors 			 |  		
 	 
    
   
  40khz low power dual frequency depth measurement ultrasonic transducer
  ,
  1. Introduction:
  Used chiefly for hydrolocation in seas, rivers and lakes.
  Using special technology, can work using one or two resonance frequencies.
  Using wide-band technology, receiving sensitivity and transmitting response are very high.
  Fine resolution of fore-and-aft clearance reduces blind zones Providing.
  
  
   
   
  2. Application:
  ● locating
  ● Approach measurement
  ● escaped obstruction
  ● fish finder
   
  3. Main parameters
   	 		 			| No. |  			Item |  			Parameter |  		
 		 			| 1. |  			 			 Working   			frequency(fr)  			 |  			 			 40KHZ±1 KHZ   			200KHZ±3 KHZ  			 |  		
 		 			| 2 |  			Material |  			PZT-4 |  		
 		 			|  			     			3  			 |  			Beam width(-3dB) |  			 			 40KHZ: 15°   			200KHZ:5°  			 |  		
 		 			|  			     			4  			 |  			 			 Parallel impedance   			(in water)(Ω)  			 |  			 			     			600±30%  			 |  		
 		 			| 5 |  			 			 Static   			capacitance(pf)  			 |  			2700±15% |  		
 	 
   
   
  4. Total resistance - phase curve
   
  
   
  Wiring way:
 Red - - transducer positive electrode;
 Black - - transducer cathode;
 Blue and green - - temperature sensor;
 the yellow, white and the shield - - outer covering shield.