Tritech Gemini 1200ik

Description

The Tritech Gemini 1200ik is a dual-frequency, forward-looking multibeam imaging sonar. It operates at 720 kHz for long range target detection (up to 120 m) and 1200 kHz for high-resolution imaging (up to 50 m), with a 120° horizontal field of view at both frequencies. The frequency can switch automatically at a set range or be changed manually.

The sonar attenuates waterborne electrical noise from thrusters and other subsea equipment, and an integrated velocity-of-sound sensor gives accurate target positioning. CHIRP processing improves target separation at longer ranges. The update rate is 5–40 Hz depending on range, and bandwidth use can be limited by capping the ping rate, reducing resolution or enabling data compression. The sonar is controlled with Tritech's Genesis software.

The 1200ik is available rated to 500 m or 1000 m. It runs on 19–74 VDC, uses 9.5–27 W depending on range and communicates over Ethernet, with an RS232 auxiliary port. The 500 m version weighs 1.46 kg in air and 0.44 kg in water.

Technical Specification

Operating frequency

720 kHz (low) / 1200 kHz (high)

Angular resolution

1.0° acoustic, 0.25° effective (720 kHz); 0.6° acoustic, 0.12° effective (1200 kHz)

Range

0.1–120 m (720 kHz); 0.1–50 m (1200 kHz)

Number of beams

512 (720 kHz); 1024 (1200 kHz)

Horizontal beam width

120°

Vertical beam width

20° (720 kHz); 12° (1200 kHz)

Range resolution

4 mm (720 kHz); 2.4 mm (1200 kHz)

Update rate

5–40 Hz (range dependent)

Mode of operation

CHIRP and CW

Speed of sound

Integrated velocity of sound sensor

Supply voltage

19–74 VDC

Power

9.5–27 W (range dependent)

Main port

Ethernet

Auxiliary port

RS232, TTL in, pass-through power (2.5 A max)

Connector

Impulse MKS(W)-307-FCR

Software

Genesis (included); SDK on request

Depth rating

500 m or 1000 m

Weight in air

1.46 kg (500 m); 2.03 kg (1000 m)

Weight in water

0.44 kg (500 m); 0.92 kg (1000 m)

Dimensions (L × W × H)

150 × 125 × 65 mm (500 m); 150 × 125 × 77 mm (1000 m)

Operating temperature

−10–35 °C

Storage temperature

−20–50 °C

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