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 3,000 m
- Choice of form factor to suit your operations
PIES in action
Unlocking the Gulf Loop Current
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Read morePerformance
• 3,000 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
• 190–202 dB 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 | ||
|---|---|---|---|
| Depth rating | 3,000 m | ||
| Operating frequency | LMF (14–19 kHz) | ||
| Transmit source level (dB re 1 µPa @ 1 m) | 190–202 dB | ||
| Battery life | Typically 3+ years, dependent on sensors and sampling interval | ||
| Internal battery | Lithium primary or alkaline | ||
| Mechanical construction | Hard anodised aluminium housing, duplex stainless steel guards | ||
| Weight in air/water* | 30.6/16.1 kg | ||
| Sensors and options | |||
| Temperature (±0.1°C) | Standard | ||
| Tilt switch (±30–45°) | Standard | ||
| Paroscientific DigiQuartz pressure sensor (±0.01%) 4130 fitted as standard (other options available) |
Standard | ||
| Release mechanism (screw-off) | Standard | ||
| High accuracy inclinometer Range: ±90° Accuracy: ±0.05° over 0–±15°; ±0.2° over 0–±45° |
Optional | ||
| Sound velocity sensor ±0.02 m/s accuracy under calibration conditions |
Optional | ||
| Connector type | Subconn MCIL8M | ||
| * Estimated weights | |||
| Note: See Compatt 6 and AMT datasheets for more information |
