Simrad ES38-10 - DATASHEET REV B Datasheet

Simrad ES38-10
Split-beam echo sounder transducer

Introduction

The Simrad ES38-10 is a medium
size, 38 kHz split-beam echo sounder
transducer. It incorporates 48 Tonpilz
elements in three sections.

Order number

KSV-202714

Technical specifications

The following specifications are
valid when all three sections are
connected in parallel.
• Resonant frequency: 38 kHz
• Circular beamwidth: 10 deg
• Directivity D: 330
• DI = 10 log D: 25 dB
• Equivalent two-way beam
angle Ψ: 0.015
• 10 log Ψ: -18 dB
• Side lobes: Less than -18 dB
• Back radiation: Less than -30 dB
• Angle sensitivity: 12.5
• Nominal impedance: 25 ohm
• Max. variation in |Z|: 20 to 30 ohm
• Max. variation in
phase angle: ±30 deg
• Transmitting response:
181 dB re 1μPa per V
• Receiving sensitivity, open
circuit: -177 dB re 1V per μPa
• Electro-acoustic efficiency: 0.70
• Max. pulse power input: 1500 W
• Max. continuous input: 30 W
• Max. transducer depth: 100 m
• Cable length: 20 m
• Cable diameter: 10.6 mm
• Weight: 18 kg
• Storage temperature: -20° to 70°C
M A X I M I Z I N G
-30
Beam pattern
Y O U R P E R F O R M A N C E
0
30
-10
-20
-30
-10
-40
-20
-30
(CD017015A)
www.SIMRAD.com
A T S E A
mS
10
0
33
kHz
0 10 20
Admittance, 3 sections in parallel
(CD017015B)
38
43
30 40
mS