Sonardyne - Delivering trusted solutions for acoustic positioning, inertial navigation, wireless communications, sonar imaging

The transceiver used by Sonardyne's TZ/OBC positioning system have a remote transducer which is generally deployed in an over the side arrangement, or through hull.
On command from a PC equipped with Hydropos, the transceiver interrogates the seabed transponders and simultaneously take in DGPS information. This raw data is then processed in real time to produce ground station positions to better than 2 metres absolute. Raw data can also be output to the client's own navigation processor for independent final network adjustment.
HydroPos Seismic is the PC software that controls Sonardyne's OBC/TZ positioning system. The application monitors, time tags and logs raw data received from the vessel's surface navigation systems (GPS, Gyro etc) and drives the acoustic transceiver to provide the user with real-time positioning of the transponders as deployed on the ground stations/receivers. Hydropos can also operate the Sonardyne RFID readers to further streamline the acoustic acquisition process.
All raw and processed data is stored in a single file to allow easy archiving and transfer of all survey data. In addition, the application enables post processing of all the raw data to enable improved position computation and quality analysis. Various industry standard reports are provided for export from the application.
| Feature | Type 7911 Transceiver |
|---|---|
| Depth Rating | 500 metres |
| Operating Frequency | HF (35-55 kHz) |
| Transmit Source Level | >188-190dB |
| Receive Sensitivity (dB re 1µPa @1m) | |
| Range Jitter (1 Std Deviation) | ~25us Typical |
| Receive Channels | 12 Parallel + 18 Virtual |
| Power | 12-24V DC (Max 500mA) |
| Communications | RS232 @ 38400 Baud |
| 'Connections | 8-Way AGP (Power and Communications) / 4-Way AGP (Remote Transducer) |
| Hardware Trigger (Sync) | +5V DC (Upto Isolated) |
| Mechanical Construction | Anodised Aluminum Alloy and Plastics |
| Dimensions (LxDia) | 612mm (24.1”) x 178mm (7.0”) |
| Weight in Air | 11.5kg |
| Weight in Water | 7.5kg |
| Feature | Type 7912 Remote Transducer |
| Operating Frequency | HF (35-55 kHz) |
| Depth Rating | 500 metres |
| Cable Length | 6 metres Standard (Extendible to 10 metres) |
| Mechanical Construction | Plastics, Stainless Steel Connectors and Guard |
| Dimensions (LxDia) | 165mm (6.5") x 178mm (7.0") |
| Weight in Air | 1.5kg |
| Weight in Water | 0.9kg |