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Scientific Equipment

Geophysics

Find out more about Geophysics

Technical Specifications:

Operational Frequencies

120 / 38 kHz (Simultaneous transmission)

Max. operational depth

150 m / 350 m

Beam Angle

7° / 11°

Beam Angle

222 dB / 225 dB

Pulse Types

FM (Chirp) e CW

Max. ping rate

40 Hz

 

Technical Specification:

Operational Frequencies

105 kHz ± 10 kHz (“100 kHz”) / 390 kHz ± 20 kHz (“500 kHz”)

Pulse length

0,1 / 0,01 ms

Transmission power

228 / 222 dB re 1 µPa @ 1 m

Max. swath

25-600 m / 25-150 m

Max. operational depth

600 m

Horizontal beam angle

1,2° / 0,5°

Vertical beam angle

50°

Across-track resolution

8 cm / 2 cm

File format

JSF (proprietary) e XTF

Acquisition Software

Edgetech Discover

Technical Specification:

Source

Tow-fish 512i

Pulse type

Full spectrum Chirp FM

Transmission frequencies

0,5 a 12 kHZ

Transmission power

212 dB re 1 µPa @ 1 m

File format

JSF (proprietary) e SEG-Y

Max. tow depth

300 m

Max. operational depth

800 m @ 100% power

Pulse length

5 – 20 ms

Pulse frequencies

0.5–8.0 kHz/5 ms FM

0.5–2.7 kHz/40 ms WB

0.5–6.0 kHz/20 ms WB

0.5–4.5 kHz/50 ms FM

0.5–6.0 kHz/9 ms FM

0.5–6.0 kHz/18 ms FM

0.5–7.2 kHz/30 ms FM

0.7–12.0 kHz/20 ms FM

2.0–12.0 kHz/20 ms FM

Vertical resolution

19 cm (1–5.0 kHz)

12 cm (1.5–7.5 kHz)

8 cm (2–12 kHz)

Beam angle

41°, 0.5–5 kHz

32°, 1–6 kHz

24°, 1.5–7.5 kHz

16°, 2–12 kHz

Technical Specification:

Source

TR109

Pulse type

Full spectrum
Chirp FM

Transmission frequency

3,5 kHz

Max. Operational depth

120 m

File format

ODC

(proprietary) with conversion to SEG-Y

Vertical resolution

8 cm

Max. ping rate

20 Hz

Technical Specification:

Source

Applied Acoustics S-Boom System

Transmission

(3) boomer plates AA 252

Transmission power

222dB re 1μPa @ 1 m (1000J)

Weight

120 kg (Catamarã + Placas)

Tow cable length

75 m

Operational voltage

3600 – 4000 Vdc

Max. ping rate

3 Hz @ 1250J

Typical signature

Hydrophones

Geometrics Micro Eel Streamer

Live section

12 Channels

Hydrophones per group

1-4

Interval between Channels

1,562 m

Frequency response

10 Hz to 10,000 Hz ± 1.0 dB.

Sensitivity

-196 dB re 1 V/1 μPa

Max. tow depth

30 ±5 m.

Pre-amplifiers

Ultra-low noise differential 6 dB

Power supply

±12V

Seismograph

Geometrics Geode

Dynamic range

144 dB

Band width

1.75 Hz a 20 kHz.

Pre-amplifiers gain

24 dB

Anti-Alias Filter

-3 dB @ 83% of the Nyquist frequency

 

Technical Specification:

Operational principle

Cesium vapor

Measuring range

20.000 a 100.00 nT

Noise

< 0,004 nT

Max. ping rate

20 Hz

Max. tow depth

2700 m

Tow cable length

150 m

Temperature of operation

-35°C a +50°C