Fiber Bragg Grating Interrogator - Fiber Optic Grating Demodulator - High-Speed/Frequency FBG Analyzer
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- Brand Name: Default brand: OFSCN®. Unbranded products are available. Please consult for customized brand products (subject to local laws).
- Availability: Materials in stock, custom production possible.
Product Alias: Fiber Bragg Grating Interrogator, FBG Interrogator, FBG Sensor Interrogator, Fiber Optic Grating Interrogator, Fiber Bragg Grating Demodulator, FBG Demodulator, Fiber Optic Grating Demodulator
This product is produced by DCYS, and it is a high-speed high-frequency fiber Bragg grating demodulator(Interrogator). The fiber grating demodulator is compatible with various specifications and models of OFSCN® fiber bragg grating sensors (temperature, strain, stress FBG sensors, etc.). It features adjustable port density (4, 8, 12, 16 channels) and high-speed high-refresh rate capabilities.
Physical Demonstration Video of the Fiber Bragg Grating Interrogator / Demodulator:
Features of the Fiber Grating Demodulator:：
● Long-term vibration resistance: 2g
● Wide temperature range: 0-50°C / 20-65°C (customizable)
● Convenient communication interfaces: RJ45 (TCP/IP, Modbus), CAN
● Full integration: Built-in comprehensive web-based configuration management system
Applications of the Fiber Grating Demodulator:
● Detection and long-term online monitoring using FBG/FP sensors
● Infrastructure, wind turbines, equipment: temperature, stress, strain, structural damage
The fiber grating demodulator(PN: FT16) is designed to withstand long-term vibrations, has data interfaces with high voltage resistance, a wide temperature range, and flexible communication interfaces. It also features a built-in comprehensive web-based management system.
The product has demonstrated reliability and safety in engineering applications.
The fiber grating demodulator can also be used for highly accurate measurements of physical quantities such as temperature, strain, pressure, displacement, vibration, and acceleration in the fields of bridges, tunnels, oil and petrochemical industries, power grids and plants, and aviation and maritime sectors. These measurements are based on FBG or FP fiber sensors.
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Parameters |
Unit |
Minimum Value |
Maximum Value |
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Optical Parameters |
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Detection wavelength range |
nm |
1525 |
1565 |
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Supported channel count |
CH |
16 (customizable: 4, 8, 12, 16 channels) |
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Short-term wavelength repeatability |
pm |
2 |
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Absolute wavelength accuracy |
pm |
+/- 5 |
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Wavelength demodulation resolution |
pm |
0.2 |
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Dynamic range |
dB |
20 |
40 |
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Interface |
FC/APC (customizable: LC/ST/SC/E2000) |
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Electrical and Equipment Parameters |
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Scanning frequency |
Hz |
1/5/10/20/50 (customizable) |
100/200/500/1000 (customizable) |
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Rated voltage/current: |
V/A |
12/1、2、3 |
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Device dimensions |
mm |
246*220*43 (excluding fiber adapters and mounting base) |
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Device weight |
KG |
2.2 |
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Device operating temperature |
℃ |
0 or -20℃ |
50 or 65℃ |
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Device operating humidity |
％ |
10 |
95 |
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Management and Communication |
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RJ45 |
TCP/IP |
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CAN |
CANOpen，1M speed |
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Management system |
Web-based management, customizable configuration and monitoring of sensor and device status, APP management (customizable) B/S architecture or C/S architecture |
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Note: The fiber grating demodulator functions are included as an attachment.
DCYS is a professional manufacturer of FBG demodulator equipment, providing information such as FBG demodulator technical principle, channel number, working wavelength, temperature strain accuracy, function, installation and measurement methods; The Demodulator can be used with various fiber bragg grating sensors and FBGs of DCYS. The brand of FBG demodulator is "OFSCN". Bulk purchase, better price!
The OFSCN® FBG interrogator price is related to many factors, including the quantity you purchase at a time, the number of channels of each FBG interrogator, the sampling frequency of the FBG interrogator, whether a customized software system is required, etc. In addition, when you purchase a FBG interrogator, you will often also purchase some FBGs or FBG sensors at the same time. Sometimes there will be some discounts for combined purchases.
So it is difficult to simply answer your question. Please write to us for communication. You can also click here for more information: https://www.ofscn.net/fbg-topics/price.html
Thank you!
Thank you for your question. Here is my answer:
If you want to use fiber Bragg grating sensors to measure physical quantities such as temperature and strain, a fiber Bragg grating interrogator is necessary. I know that some people have tried to use a fiber spectrometer, but I think it is inappropriate.
First of all, the functions of spectrum analyzers and fiber Bragg grating interrogators focus on different aspects:
Spectrum analyzers are mainly used to measure the spectral characteristics of light sources, including wavelength, intensity, line width, etc. It can provide detailed information about the fiber Bragg grating reflection spectrum, but it is not specifically designed for high-precision measurement and demodulation of the wavelength change of the fiber Bragg grating.
Fiber Bragg grating interrogators are designed for measuring the wavelength measurement and wavelength change of FBGs. It can perform high-precision and real-time measurement of the tiny wavelength changes of the fiber Bragg grating, and convert them into corresponding physical quantities (such as temperature, strain, etc.) through built-in calculation programs.
Furthermore, the measurement accuracy of spectrum analyzers and fiber Bragg grating interrogators is different:
Although spectrum analyzers can measure spectra, their wavelength resolution and measurement accuracy are usually not as good as professional fiber Bragg grating interrogators.
FBG interrogator/demodulator has higher wavelength resolution and measurement accuracy, and can more accurately reflect the slight changes of FBGs.
In addition, the measurement speed of spectrum analyzer and FBG interrogator is different:
The measurement speed of spectrum analyzer is relatively slow, especially in high-resolution measurement.
FBG interrogator has faster measurement speed and can monitor the wavelength change of FBGs in real time.
Finally, compared with spectrum analyzer, FBG interrogator/demodulator is much more powerful because it is a special equipment for FBG sensing. In addition to watching the video, you can also learn more about the functions of OFSCN® FBG demodulator here:
https://www.ofscn.net/fbg-topics/analyzer-demodulator.html#K
In short, FBG interrogator is necessary for your measurement.
If you want to purchase a powerful and reasonably priced FBG interrogator, please contact us by email.