PIES
Overview
Unlocking your deep-sea understanding
Do you, or your clients, need reliable, long-term ocean data for your operations? If so, PIES is your solution. Our Pressure Inverted Echo Sounders (PIES) deliver precise, long-lasting measurements of sound velocity through the water column from the seabed to the surface.
Unlocking subsea secrets with PIES
Imagine the possibilities
Boost your operations: Make informed decisions with a deeper understanding of ocean currents and seismic activity.
Save time and money: Deploy PIES for up to five years, reduce personnel costs and environmental impact through unmanned data retrieval.
Uncover hidden insights: Combine PIES data with other geophysical measurements for a comprehensive view of the ocean floor.
How PIES works for you
PIES is designed to seamlessly integrate into your system:
- Easy to use: Simple setup and configuration, with flexible ping rates to match your needs.
- Reliable data: Consistent, accurate measurements for months or even years.
- Versatile retrieval: Access data when you want it, remotely, mid-operation, via unmanned vehicles or by traditional end of mission retrieval methods.
- Comprehensive insights: Developed for marine seismic and ocean science applications.
Why invest in PIES
- Suitable for environmental surveys / ocean currents monitoring / site survey and characterisation
- Harvest data using ROV, AUV, USV or surface vessel
- Integrated acoustic release for easy recovery
- Depth ratings to 6,000 m
- Choice of form factor to suit your operations
PIES in action
Unlocking the Gulf Loop Current
Read moreTransponders provide reliable releases for Allton offshore Norway
Read moreLong endurance monitoring of tectonic motion
Read morePerformance
• 3,000 or 6,000 m depth rated
• Up to five-year deployment life
• Monitor for months or years – PIES is engineered for sustained observation campaigns
• PIES helps oceanographers and geophysicists to better understand the physical processes that occur deep in the ocean
Design
• Anti-trawl frame option available
• Customisable sensor payload options
• Glass sphere or hard anodised aluminium housing options
• Easy to set up with configuration and sampling period programmable via modem
Acoustic
• 80–120 dB (7 levels) receive sensitivity
• 190–202 dB (4 Levels) transmit source level
• LMF (14–19 kHz) operating frequency
• Integrated modem with data rates ranging from 100 to 9000 bps
Ownership
• Warranty: 1 year return to Sonardyne service centre
• ITAR Controlled: No
• UK Export License: not required
Specifications
| Feature | Type 8302-3116 | Type 8306-3816 | |
|---|---|---|---|
| Depth Rating | 3,000 or 6,000 m | 3,000 or 6,000 m | |
| Operating Frequency | LMF (14–20 kHz) | LMF (14–20 kHz) | |
| Transmit Source Level (dB re 1 µPa @ 1 m) | 190–202 dB (4 levels) | 190–202 dB (4 levels) | |
| Receive Sensitivity (dB re 1 µPa) | 80–120 dB (7 levels) | 80–120 dB (7 levels) | |
| Battery Life (Capacity) | Multi-years life, dependent on sensors and sampling interval (100 Ahr) | 5 years life (dependent on sensors and sampling interval (180 Ah) | |
| Mechanical Construction | Hard anodised aluminium housing, duplex stainless steel guards | Glass sphere, galvanised stand, duplex stainless steel guards and connectors | |
| Weight in Air/Water | Fetch | 30.6/16.1 kg | 43/-10 kg (upthrust buoyancy) |
| Stand | n/a | 60/52 kg | |
| Sensor Options | |||
| Temperature (±0.1°C) | Standard | Optional | |
| Tilt Switch (±30–45°) | Standard | Standard | |
| High Precision Strain Gauge (±0.01%) Keller or Presens |
Optional | Optional | |
| Paroscientific DigiQuartz Pressure Sensor (±0.01%) 1,350 m, 2,000 m, 4,130 m, 6,800 m |
Standard | Standard | |
| High Accuracy Inclinometer Range: ±90° Accuracy: ±0.05° over 0–±15°; ±0.2° over 0–±45° |
Optional | Optional | |
| Sound Velocity Sensor ±0.02 m/s Accuracy Under Calibration Conditions |
Optional | Optional | |
| External Sensor Options Turbidity, Conductivity, ADCP | n/a | Optional | |
| Release Mechanism (Screw-off) | Standard | Standard | |
| Connector Type | Subconn MCIL8M | Impulse MCIL-8-MP | |
| (See Compatt 6 and AMT datasheets for more information) |
