Simrad EQ 55 Spécifications télécharger pdf (Page 27)

4RANSDUCERBEAMWIDTH

The transducer mounted to the hull of your vessel serves as both a

"speaker" when transmitting, and as a "microphone" when the echo

sound is receiving. Similar to the way a flashlight focuses light, most of

the sound from your transducer is focused downwards with a smaller

amount going out to the sides. The amount of focusing of the sound

beam is expressed as a "beamwidth".

Figure 3 - A representation of a transducer beamwidth.

Transducer

Approximation of the

sound pattern below the

transducer

This angle is the

transducers beamwidth

1/2 maximum

intensity

Maximum intensity

0RINCIPLESOFOPERATIONOFANECHOSOUNDER #HAPTER

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Simrad EQ 55 Spécifications Page 27