Simrad ES120-7F DATASHEET

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Simrad ES 120-7F

120 kHz Split-beam transducer

Introduction

The ES120-7F is a split-beam transducer with 76
piezo-ceramic elements distributed over four quad­rants. The unit may also be used as a single-beam
transducer. This is accomplished by coupling (in par­allel) the four quadrants into two sets and connecting
the resulting pair in series. The specications below
are valid when the transducer is wired as a sin­gle-beam unit. The unit has a streamlined housing
for hull and towed foil mounting.

Order number

KSV-110553

Technical specications

Resonant frequency....................................... 120 kHz

Beamwidth, circular.....................................7 deg ±1

Directivity:

D........................................................... 650 ±20%

DI=10logD .............................................28 ±1 dB

Equivalent two-way beam angle:

Ψ.......................................0.009 ± 20% steradain

10 logΨ.............................................. -20.5 ±1 dB

Side lobes..........................................less than -15 dB

Back radiation ...................................less than -35 dB

Angle sensitivity:

Phase angle/angle to target................................21

Impedance:

Nominal................................................... 60 ohms

(855-164135 Rev.C)

Max. variation in |Z| .........................45 - 80 ohms

Max variation in phase angle .........................±30 deg

Transmitting response.............................179.5 dB ±2

re 1µPa per V

Receiving sensitivity, open circuit ........ -180.5 dB ±2

re 1V per µPa

Electroacoustic efciency ......................... 0.70 ±0.20

Maximum pulse power input .........................1000 W

Maximum continous power input ......................10 W

Maximum transducer depth ............................. 150 m

Cable length ....................................................... 20 m

Cable diameter ............................................. 10.6 mm

Weight without cable .......................................6.6 kg

Data

Installation

Manu fac t urer:

Simr ad AS

Strandpr omenade n 50

P.O.Box 111

N-3191 Hor ten

Telep hone: [phone]