GTR FBG INTERROGATOR
Multi-Application FBG Strain Sensing Platform
GTR FBG Interrogator System
GTR FBG Interrogator
The GTR features new and innovative FBG sensing functionality, based on integrated photonics.
The platform is a miniature, out of-the-box system platform supporting optical chipsets for a wide range of applications and environments. The basic GTR device is a single channel FBG interrogator that features 1pm resolution, high speed sampling and easy integration to your applications.
The mezzanine interface concept allows custom data interfacing by easy sub-component replacement. The standard USB interface is supported by operating systems as Windows, MacOS, Linux and Android.
Numerous applications are supported through many markets.
- High-resolution Strain Sensing and Thermal Mapping for the High-tech Industry
- Structural Health Monitoring
- Damage & Impact Detection
- Shape Sensing in Aeronautics
- Cardiovascular Diagnostics
- Haptic Feedback
- Pressure and Temperature sensing for Medical
- Vibration Monitoring
- Heat Flux sensing
- Displacement and Force-tip sensing
- and many more.
GTR FBG Interrogator System: Benefits
- Small size
- Low weight
- Low power consumption
- Available for OEM integration
FBG Metrology System
This next-generation FBG metrology system is based on Integrated Photonics technology. The Gator features specifically designed integrated photonics functionality (patented technology) that forms the basis for all Gator series.
GTR FBG INTERROGATOR: FEATURES
- 1 Optical Channel
- Up to 8 FBG sensors per channel
- Up to 19.2 kHz sampling speed
- 1515 – 1585 nm wavelength range
- USB 2.0 interface
GTR FBG INTERROGATOR: CUSTOMIZATION
Based on the Gator platform, different variations and chipsets are available for different measurement capabilities and application requirements.
In addition, a multiplexing feature is available in combination with these different measurement capabilities.
GTR FBG INTERROGATOR: SPECIFICATIONS
| PROPERTY | SPECIFICATION |
|---|---|
| Performance Properties | |
| Number of optical channels | 1 |
| Channel sampling type | Continuous |
| Sampling rate | 1kHz, 5kHz, 10kHz, default at 19.23kHz |
| Wavelength measurement range A | 1516 nm … 1583 nm |
| Wavelength output resolution | < 1 pm/bit, ≈ 0.275 pm/bit typical |
| Wavelength repeatability B | < 5 pm nominal |
| Wavelength precision | σ < 2 pm (over 1000 samples at 19.23 kHz) |
| Power consumption | < 10 W (≈ 5 W at 25°C) |
| Communication properties | |
| Data protocol | USB2.0 |
| Output data rate | 6,461,280 bits per second @19.230kHz sample rate |
| Output data unit C | Centre of Gravity value |
| Physical properties | |
| Dimensions D | 100 mm x 114 mm x 35 mm |
| Weight | 310 grams |
| Power input (DC) | 9 VDC … 36 VDC |
| Power adapter input (AC) | 80 VAC … 264 VAC (47Hz – 63Hz) |
| Optical interface | FC/APC, Single Mode Fibre |
| Communication interface | USB-B |
| Environmental properties | |
| Operating temperature range | 0°C … 45°C |
| Storage temperature range | -20°C … 75°C |
| Degree of protection | IP20 |
| Sensor array properties | |
| Max number of FBG per channel | 8 |
| Minimum sensor spacing E | 5.1 nm |
A – Wavelength range guaranteed for all GTR devices, typical range is 1515 nm … 1585 nm.
B – Repeatability defined as the nominal average wavelength drift over a period of 20 minutes, in a steady state environment. Maximum allowed wavelength drift <30pm. Contact PhotonFirst for extensive repeatability and reproducibility information.
C – Refer to Annex B in the User Manual.
D – Including FC/APC coupler and rubber feet.
E – Typical minimum spacing 4.8 nm. [Refer to FBG definition in the User Manual]
