300K 110K Ultrasonic Fish Finder Sensor Wireless Sonar Fish Finder Probe Internal Module Ultrasonic Sensor

two,Product Advantages

1, Fully independently developed,Thorough understanding of the product.

2, Ability to Develop Related Transducers According to Customer Needs.

3, Comprehensive Testing Using Impedance Analyzers and Other Equipment.

4, It Has Been Applied to Many Domestic Companies and Schools.

three,Application Scope

300KHzFish Finder Transducer DYW-300-50AC Instrument Used for Underwater Fish Detection.

Currently using customers include:Yaqi,Guobin,Garbo,Saiyang and others.

Five,Parameters to Know When Selecting

1.What Is the Frequency of the Ultrasonic TransducerKHz?

2.What Is the Maximum Measurement Range??

3.Operating Temperature Range,Working environment pressure range?

4.Corrosion resistance:Does it require anti-corrosion treatment?.

5.Do You Want to Built-In Temperature Sensor?

6.How Many Centimeters Is the Lead Length??

7.What is the specific use??

8.In what liquid does it work??

How Does a Fish Finder Find Fish?

One,The basic principle of fish finder

1.

How Does the Fish Finder Probe Detect Fish?

?

Fish Finder Detects Fish Mainly by Using the Ultrasonic Sensor to Detect Bubbles in the Water through the Probe and Detect the Echo to Judge the Fish.Fish Bladder:Most Fish Have an Organ Called Fish Bladder in Their Bodies,The Function of Fish Maw Is That Fish Can Control the Balance of Their Bodies Against Water Pressure at Different Depths Underwater,Adjust the floating depth.Due to the Fish Bladder Is Filled with Gas,According to the Concentration of Air, the Relative Density and Weight of Fish and Fish Bones Will Change.In General, Fish with Large Swim Bladders Are Big Fish,Small fish have small swim bladders,The Fish Finder Determines the Size of the Fish Based on the Fish Bladder,But It Is Not Completely Excluded That Small Fish Have Large Fish Bladders,Causes the Fish Finder to Display Large Fish.

two,Different frequencies of fish finder

The Most Commonly Used Operating Frequency of Blue Water Type General Fish Finder Is Generally Designed to Be

50kHz and 200kHz;

The Most Commonly Used Operating Frequency of Freshwater Type General Fish Finder Is Generally Designed to77kHz

and 200kHz

.For different frequencies,The Transmission Distance and Signal Clarity Are Different.Generally

,The Longer the Frequency, the Shorter the Wavelength,The clearer the signal,However, the transmission distance is shorter

;The Longer the Wavelength, the Lower the Frequency,The Transmission Distance Is Long but the Signal Will Be Blurred.

If It Is a Large-Scale Search,You can choose low frequency,If You Want to Clearly See the Target,Choose high frequency.

Generally,

200kHzThe Fish Echo Is the Most Clearly Detected,However, the Usual Depth Measurement Range Does Not Exceed600ft/200m,And the Beam Angle Is Usually Designed as20°Within,Suitable for shallow water areas,Mainly Used to Display Fine Target Images.

50kHzThe Detection of Fish School Echoes Can Be Seen More Deeply,In Addition, the Beam Angle Is Also Designed to Be Relatively Large,Usually achievable40°Above,Mainly Used to Display Deep Underwater Contour Terrain.

Due to the longer wavelength,It'S Easy to Overlook Some Small Targets.

77kHzThe Detection of Fish Can Be Seen Relatively Deeper,But It Generally Focuses on Freshwater Lake Use,Special Beam Angle Increase Is Achieved30°Above.The Response of Different Species of Seawater Fish and Freshwater Fish to Different Frequencies of Echoes Is Different,However, generally speaking..200kHzThere Are Obvious Reactions at Different Frequencies,That's why200kHzIs the Main Working Frequency of Fish Finder.

The Picture Below Shows the Same Underwater Fish in Different Places

200kHzand50kHzThe Difference in Display Images on the Fish Finder Screen under Two Frequencies.

As can be seen from the picture,

50kHzTake a deeper look,But the Clarity Is Relatively Better200kHzVery low,200kHzThe depth should be shallower,But it's very clear to see.

Total,Fish Finder Is Used to Detect Fish Using Ultrasound,Then Work According to Different Frequencies,Different Power Levels Can Also Be Used to Choose High Frequency or Low Frequency for Work According to Different Needs.

This Article Is Only for Reference and Learning Purposes,If there is any infringement,Will definitely investigate.

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