About Slant Range Sensors

Port Stbd

1. Port receiving hydrophone

2. Starboard receiving hydrophone

3. Transmitting hydrophone

4. Transmitting hydrophone asks

5. Slant Range sensors answer

6. Slant Range sensor 1

7. Slant Range sensor 2

Slant Range sensors are also called pingers.

You can install one sensor on each trawl door.

  1. One transmitting hydrophone sends a signal toward the Slant Range sensors.
  2. Both Slant Range answer with depth and bearing data.
  3. Two receiving hydrophones receive the responses from the 2 sensors.

The distance between the sensors and the hydrophones is calculated using the response time of the sensors to the hydrophone.