Company Presentation
 

Swedish Sonar Services main work is product development, production, marketing and sales of side scan sonar systems type SH.
 
The SH systems performs:

  - Sea floor surveys
  - Search for objects on the sea bottom and in the water e.g. wrecks, lost or dumped equipment, mines, human bodies etc.
  - Inspection of underwater equipment and constructions.
  - Documentation of wrecks
  - Search for sunken timber
  - Documentation of dams, rivers and creeks
  - Surveys for cable and pipe laying
  - Documentation and inspections of harbors
  - Surveys for pre-engineering and feasibility studies
  - Diving and photo and film documentation
  - Mapping (requires extra software), even with several parallel vessels (raking)
  - Surveillance of suspicious underwater activities with mobile or fixed equipment.
 
 

The System consists of:

–Electronic box for signal detection in waterproof box
–Sonar fish/underwater body for ultra sound
–Cable (70 m std)
–Software for image generating
–PC for image handling and storage (not included)
–GPS-receiver (not included)
–Total weight < 30 kg
 

The SH 200,500 & 800 series Technical specification

1.Frequency 200, 500 or 800kHz

2.Beam width 200kHz (depending on freq: vertical 60° ; longitudinal direction perpendicular to towing <1° (The elements are angeled 25° or 35° down.
The Aperture is 407x5 mm2 for short fish and 610x5 mm2 for long fish. 500 kHz has the same aperture lenght but is only 3 mm wide. There is no shadowing from the sensors.

3.Swath width:
Normally 400 m. 600 m with less resolution.

4.Max speed with full bottom coverage.
Typical towing speed is 3-6 knots. Maximum 8 knots

5.Bottom resolution.
15 cm, less at higher speeds and larger distances.

6.The device cab optionally measure the distance to the sea bottom (topographic mapping). The water column and the surface reflex in the middle of the image give depth information etc.

7.Array: Linear (Separate elements are not accessible).

8.Synchronization of pings with parallel systems is possible.
 

With our system there have been some amazing discoveries!
 
B17 bomber WW2
 
Nedjan
Disappeared in a winter storm 1954 outside Gävle
Found in 2000 with the equipment SH 200

 
Nordstjernan
 

Note the details, the ship rests at 120 meters depth