Affinity
- 31-bit digitiser and network communications unit
- Stable and robust Linux-powered unit
- Option for Elliptic Curve Digital Signature Algorithm (ECDSA) scheme data authentication.
Sophisticated and adaptable, high fidelity seismic digitiser.
The Güralp Affinity is a high-fidelity integrated digitiser and network communications unit that provides a convenient and expandable way of connecting analogue and digital seismic instruments to your network.
The Affinity delivers high-quality digitisation with 31-bit resolution. Designed for data quality and durability, the Affinity is a stable and robust Linux-powered unit with on-board storage and networking facilities. An advanced module directly controls power supply to peripherals and reports their voltages via state-of-health communications.
For applications where data verification is critical the Affinity also supports Elliptic Curve Digital Signature Algorithm (ECDSA) scheme data authentication.
The Affinity is available as a four channel or eight channel unit.
- 31-bit analogue-to-digital conversion
- Available with four or eight ADC channels
- Ultra-low-noise: >138 dB of dynamic range @ 100 sps
- 8 or 16 environmental multiplexed ADC channels
- Triggering/events subsystem capabilities including STA/LTA, level (threshold), software triggers, per-channel voting and peer-to-peer network voting
- Four (or eight) concurrent sampling rates of up to 4000 samples per second
- UTC time-stamped data using a low-power GPS receiver and state of the art timing protocols, Precision Time Protocol (PTP) and Network Time Protocol (NTP)
- Multi-user Linux operating system with full network support
- On-board Web server (HTTP and HTTPS) allows full remote configuration of digitizer parameters and broadband sensors, including remote lock, unlock and centre
- Fixed 64 GB onboard storage with additional connection for external USB storage
- Records in GCF and miniSEED
- Supports ECDSA scheme data authentication
- Supports multiple data formats, including GCF, GDI, miniSEED, CD1.1 and SEEDlink
- Built-in calibration signal generator: step, sine or broadband
- Fully integratable with a wide range of multi-disciplinary sensors
