SGTR FBG Interrogator
Eight-channel desktop Fiber Bragg Grating interrogator with programmable channel multiplexing and up to 19.2 kHz per-channel sampling. Distributed in the US by Sensuron.
Technical overview
The SGTR is a full solid state multi-channel FBG interrogator supporting eight optical channels with up to eight FBG sensors each. Channel sampling can be sequential or continuous, with a default sampling rate of 19.23 kHz and selectable 1 kHz, 5 kHz and 10 kHz options; Sensuron quotes a scan rate over all channels of 30 Hz. Wavelength measurement is guaranteed over 1516 nm to 1583 nm with output resolution better than 1 pm/bit and precision of sigma below 2 pm. The unit measures 110 x 130 x 47 mm, weighs 540 g, and outputs CSV over USB 2.0.
Also supplied through PhotonFirst. 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
- Up to 19.2 kHz sampling speed
- 1515 - 1585 nm wavelength range
- USB 2.0 interface
- Fast channel multiplexing with programmable multiplexing profiles
- Full solid state design
- Small size, low weight, low power consumption
- USB interface supported on Windows, macOS, Linux and Android
- Described by Sensuron as the smallest footprint multi-channel FBG interrogator currently available
Specifications
| Parameter | Value |
|---|---|
| Number of optical channels | 8 channels |
| Max number of FBG per channel | 8 sensors |
| Channel sampling type | Sequential or continuous |
| Sampling rate | 1 kHz, 5 kHz, 10 kHz, default at 19.23 kHz |
| Scan rate over all channels | 30 Hz |
| Maximum sampling frequency (one channel) | 19 kHz |
| Wavelength measurement range (guaranteed, SGTR1002 devices) | 1516 ... 1583 nm |
| Wavelength measurement range (typical) | 1515 ... 1585 nm |
| Wavelength output resolution | < 1 pm/bit, approx. 0.275 pm/bit typical |
| Wavelength repeatability | < 5 pm nominal (max allowed wavelength drift < 30 pm) |
| Wavelength precision | sigma < 2 pm (over 1000 samples at 19.23 kHz) |
| Power consumption | — |
| Data protocol / communication interface | USB 2.0, USB-B |
| Data timestamp | Internal free running clock |
| Data storage format | CSV |
| Output data rate (max) | 6,461,280 bits per second @ 19.230 kHz sample rate |
| Output data unit | Centre of Gravity value |
| Optical connector | FC/APC, SMF |
| Dimensions (incl. FC/APC connector casings and rubber feet) | 110 x 130 x 47 mm |
| Weight | 540 grams |
| Power input (DC) | 9 ... 36 VDC |
| Power adapter input (AC) | 80 ... 264 VAC (47 Hz - 63 Hz) |
| Operating temperature range | 0 ... 45 degC |
| Storage temperature range | -20 ... 75 degC |
| Degree of protection | IP20 |
| Minimum sensor spacing | 5.1 nm (typical minimum 4.8 nm) |
Applications
- Multi-channel strain sensing
- Multi-channel temperature sensing
- Sensing applications across all markets (manufacturer wording; no vertical list published)
This link opens the manufacturer's request form, not a PDF — they do not publish this datasheet openly.
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