How Does a Transducer Help in Finding Fish?

comments (0) August 14th, 2019     

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shotgunmarine shotgunmarine, member
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This blog will help you explore more about the heart of a fish finder - transducer. From its functioning to how it recognizes fishing schools, let's get to know it all.

The Functioning of a Transducer  

To make the transducer function easier for you to understand, let's look at it as a device that has both, a built-in speaker and microphone, in one unit. Transmit pulses, electrical pulses of high voltage coming from the echosounder, are received by a transducer in sequences. These transmit pulses are then converted to sound, just like a typical stereo speaker does. To travel through the water, sound takes form of pressure waves. These waves bounce back when they come in contact with anything under water like a rock, weed, fish, or even the bottom. The wave produces the similar echo-like sensation as the voice makes off a canyon wall. During the gap of time between each transmit pulse, on echoing of the sound wave, the transducer acts as a microphone, converting sound waves into electrical energy after recording them precisely. 

Talking about precision, a high-quality unit, like Simrad transducer, spends about 99% of its time listening and recording echoes and only 1% for transmitting. All the information interpreted by the transducer and the echosounder is then displayed on the screen in a user-friendly manner.

How a Transducer Locates Fish

A transducer can sense the air bladder - an organ that almost every fish has. This air bladder is filled with gas, which helps fish to adjust the water pressure while swimming in different depths. To regulate the buoyancy, the gas in the air bladder can be adjusted, i.e. decreased or increased. As compared to the flesh and bone of the fish or the surrounding water, the density of the gas-filled air bladder is completely different. This causes a different kind of echo when the waves from the echosounder bounce off a fish. When the transducer receives these echoes, the echosounder immediately recognizes the distinctive patterns and shows it as a fish.

This is how a transducer helps in finding fish. If you're a boat owner, having one that is reliable and effective like Simrad transducers will skyrocket your fishing business.

posted in: other fiber, transducer function, simrad transducer

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