SGTR Multichannel FBG Interrogator
Eight-channel PIC-based FBG interrogator for multiplexed strain and temperature sensing. Supports up to eight FBG sensors per optical channel.
Technical overview
The SGTR extends the GTR architecture to eight optical channels, each carrying up to eight FBG sensors. PhotonFirst states a maximum sampling frequency of 19.23 kHz on a single channel; no published figure is given for the aggregate multi-channel rate. It is the interrogator named in PhotonFirst's Gantner Instruments DAQ integration and in the Taipei 101 structural monitoring case study.
Also supplied through Sensuron. The same instrument reaches us by more than one route; the specifications are the manufacturer's either way.
Features
- 8 optical channels
- 8 FBG sensors per channel
- Maximum sampling frequency (1 ch.) 19.23 kHz
- PIC (Photonic Integrated Circuit) based interrogation
- Integrates with Gantner Instruments GI.bench via the GInsPhotonFirstPlugin
Specifications
| Parameter | Value |
|---|---|
| Optical channels | 8 channels |
| FBG sensors per channel | 8 sensors |
| Maximum sampling frequency (1 channel) | 19.23 kHz |
| Software support | Gator Operator Software (GOS) v5.0.1; Public GTR API v0.1.0; Gantner GInsPhotonFirstPlugin |
Applications
- Structural health monitoring of buildings and civil structures
- Multi-point strain and temperature monitoring
- Railway and infrastructure monitoring
- Industrial data acquisition via Gantner Q.station
This link opens the manufacturer's request form, not a PDF — they do not publish this datasheet openly.
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