Sensors
Sensors are, together with the receiver, the most important elements in a Catch system. Besides the infinite amount of research and testing it took to find which observations are important in different contexts, as well as the measurements being precise and the updating rate adapted to the need, there are a number of other requirements of the sensors:
- Reliable – the electronics have to be protected so that you avoid, to the greatest extent possible, disruption due to the sensors being in need of service or repair
- Pressure safe so they can be used at all desired depths
- Sending effect that gives enough range to reach the vessel
- Long working time between each charging
- Short charging time
- Easy to change sending frequency if there are noise problems or interference from other vessels
With the new sensor construction and new plastic technology, new battery technology and new charging technology, Scanmar has met all these requirements in the new ScanSense sensor generation.
The SS4 sensors are designed for use in normal operation, at depths down to 2250 meters. The reach from the vessel depends on the chosen sending effect (see table); maximum 3000 meters.
With the new SS4 sensors self-tests can easily be done on board: By simply plugging the supplied cable to a PC, the sensors can be tested.
Other sensors have through many years documented that most of the requirements are fulfilled. Further development of these sensors is in progress.
NB! The new SS4 sensors for trawl doors and trawl can easily be programmed with new functions on the battery charger.