710 kHz Single-beam transducer
(855-164024 Rev
.E)
Introduction
With a narrow 2.8 degree beam, the 710-36 transducer
is especially suited for detailed mapping of the bottom
as well as objects in the water. Its high frequency
allows use of a short pulse length providing fi ne range
resolution. When employed in areas with soft bot-
toms, it will detect the upper limit of mud or silt. The
frequency has also proved to successfully penetrate
through aerated water, as for example vessels wakes.
Order number
KSV-089292 (Transducer with 20 m cable)
Technical specifi cations
Resonant frequency.......................................710 kHz
Circular beamwidth................................2.8 deg ±0.5
Directivity index .......................................36 dB ±1.5
Equivalent two-way beam angle...................-28.5 dB
re 1 steradian
Impedance:
Nominal...................................................50 ohms
Max. variation in |Z| .........................37 - 70 ohms
Max variation in phase angle ...................±25 deg
Transmitting response................................188 dB ±2
re 1µPa per V
Receiving sensitivity, open circuit ........... -189 dB ±2
re 1V per µPa
Electroacoustic effi ciency:
Typical............................................................0.70
Minimum........................................................0.50
Maximum input power.....................................100 W
Maximum duty cycle (at max power)..................0.04
Maximum installation depth ............................ 500 m
Cable length ....................................................... 20 m
Weight with cable ................................................4 kg
Storage temperature ................................-20 to 70 °C