Fiber Bragg Grating Interrogator - FBG Demodulator / Analyzer - Temperature, Strain, Stress, Displacement, Shape, Angle, Vibration, Fire Measuring Host - Concept and Principle Classification Network Video Parameters Price
Table of Contents:
Ⅰ. What is a Fiber Bragg Grating Interrogator/FBG Demodulator, Basic Concept of FBG Sensor Analysis Instrument
A Fiber Bragg Grating Interrogator is a detection instrument that measures the central wavelength of the sensitive element (Fiber Bragg Grating) in various FBG sensors in real-time.
The Fiber Bragg Grating Interrogator has various generic, application-specific, and industry-specific names, such as Fiber Bragg Grating Analyzer, Fiber Bragg Grating Sensor Analysis Instrument, Fiber Bragg Grating Temperature Tester, Fiber Bragg Grating Strain Measurement Instrument, Fiber Bragg Grating Vibration Test Host, Fiber Bragg Grating Fire Alarm Host, FBG Earth-Rock Dam Deformation Measurement Host, Fiber Bragg Grating Anchor Stress Host, Fiber Bragg Grating Sensing Interrogator, etc. Among these names, "Fiber Bragg Grating Demodulator" is the most commonly used term by DCYS.
Ⅱ. Measurement Principle and Common Measurement Methods of FBG Demodulator/Fiber Bragg Grating Interrogator
Different brands of Fiber Bragg Grating Interrogators often adopt different measurement principles and methods to measure and calculate the central wavelength of the Fiber Bragg Grating.
These methods include but are not limited to the Spectrometer Detection Method, Matching Grating Method, Edge Filtering Method, Tunable Fiber Fabry-Perot (FP) Filtering Method, Unbalanced Mach-Zehnder (MZ) Fiber Interferometer Method, Michelson Interferometer Demodulation Method, Wavelength Scanning Fiber Laser Demodulation Method, and others.
Ⅲ. Common Classifications of FBG Demodulator/Fiber Bragg Grating Interrogator
From the perspective of customer applications, DCYS often classifies Fiber Bragg Grating Demodulators/Interrogators based on parameters such as port quantity, scanning frequency, and product size. Examples include high-capacity high-port-density Fiber Bragg Grating Interrogators, high-speed high-frequency Fiber Bragg Grating Interrogators, small and miniaturized Fiber Bragg Grating Interrogators, etc.
Ⅳ. Functions of FBG Demodulator/Fiber Bragg Grating Interrogator, Network Diagram of Fiber Bragg Grating Interrogator/FBG Demodulator
In various Fiber Bragg Grating sensing systems, the Fiber Bragg Grating Interrogator plays a crucial role. It can directly connect to various Fiber Bragg Grating sensors, forming a small FBG sensing system for individual or mixed measurements of physical quantities such as temperature, strain, stress, displacement, vibration, angle, weight, shape, etc.
The Fiber Bragg Grating Interrogators can also be networked with multiple devices to form a larger Fiber Bragg Grating sensing network, enabling networked measurements of physical quantities such as temperature, strain, stress, displacement, vibration, angle, weight, shape, etc., over a wide range of environments or tested objects, forming a Fiber Bragg Grating sensing network.
Ⅴ. Fiber Bragg grating demodulator video introduction, FBG interrogator usage video, FBG sensor host function video
Different manufacturers of Fiber Bragg Grating Interrogators may use different operating systems and software. Some are based on Client/Server (C/S) architecture, while others are based on Browser/Server (B/S) architecture. Regardless of the architecture, they can flexibly configure sensors. Below is a video of the user interface of the high-speed high-frequency Fiber Bragg Grating Demodulator most recommended by DCYS:
Ⅵ. What Physical Quantities Can Be Measured by a Fiber Bragg Grating Interrogator/FBG Demodulator
Essentially, a Fiber Bragg Grating Interrogator measures the wavelengths of various Fiber Bragg Grating sensors, and the physical meanings represented by these wavelengths are determined by the Fiber Bragg Grating sensors. For example, DCYS's Fiber Bragg Grating temperature sensors are calibrated for the relationship between temperature and wavelength, while their Fiber Bragg Grating strain sensors are calibrated for the relationship between strain and wavelength, and so on.
Therefore, the physical quantity that the DCYS's Fiber Bragg Grating Demodulator can measure depends on the type of Fiber Bragg Grating sensor used by the customer.
Ⅶ. Can a FBG Demodulator/Fiber Bragg Grating Interrogator Simultaneously Measure Multiple Physical Quantities
The basic function of a Fiber Bragg Grating Interrogator is to measure the wavelength of Fiber Bragg Gratings and calculate wavelength changes. The meaning of the measured wavelength and wavelength changes (corresponding to physical quantities) is primarily determined by the type of Fiber Bragg Grating sensor used.
Therefore, when an OFSCN® multi-port Fiber Bragg Grating Demodulator is simultaneously connected to multiple Fiber Bragg Grating sensors representing different physical quantities and configured accordingly, it can simultaneously test and display multiple different physical quantities.
Ⅷ. How Many Sensors Can Be Connected to One Channel or Port of a Fiber Bragg Grating Interrogator/FBG Demodulator
DCYS's Fiber Bragg Grating Demodulator has the capability to connect more sensors and sensor measurement points than you might imagine. However, the specific number of Fiber Bragg Grating sensors that can be connected to one channel or port, as well as the number of measurement points per sensor, is not easily generalized. It often requires a specialized design based on the project, and DCYS has extensive experience in this regard. Please feel free to contact us for further consultation.
Ⅸ. Key Points and Main Parameters for Selecting a Fiber Bragg Grating Interrogator/FBG Demodulator
The fundamental key point in purchasing a Fiber Bragg Grating Interrogator lies in understanding your needs, as they correspond to the functionalities of the Fiber Bragg Grating Interrogator.
As a relatively novel and less well-known technology for most users, there are various demands and requirements for Fiber Bragg Grating sensing technology, making it highly diverse. DCYS has rich experience in dealing with various demands.
You need to inform DCYS about the number of channels required for your measurements, the type of fiber interface for each channel, and the system sampling frequency you need. Sometimes, we also need information about the on-site deployment of the Fiber Bragg Grating Demodulator and sensors.
Ⅹ. Price of Fiber Bragg Grating Interrogator/FBG Demodulator
Once you provide DCYS with the number of channels and system sampling frequency required for your Fiber Bragg Grating Interrogator/Demodulator, we can offer you a quotation.
DCYS has multiple Fiber Bragg Grating Demodulator parameters and services suitable for different application scenarios, and we can recommend the best fit based on our experience.
Ⅺ. Functions of Fiber Bragg Grating Interrogator/FBG Demodulator
The OFSCN® series Fiber Bragg Grating Demodulator/Interrogator from DCYS offers a rich array of functions and can be customized and developed based on the specific requirements of customers. Additionally, data interfaces can be provided for customers to carry out their own custom developments.
The OFSCN® Fiber Bragg Grating Demodulator/Interrogator primarily adopts a "Browser/Server architecture (B/S architecture)" for its system software, making it easy to use across different hardware and software platforms.
Regardless of whether your management device is a personal computer, tablet, or mobile phone, and regardless of the operating system on your management device being Windows, Linux, or Android, you can easily access the Fiber Bragg Grating Demodulator/Interrogator for operation and management.
The B/S architecture system of the OFSCN® Fiber Bragg Grating Demodulator/Interrogator provides the following basic functions:
1. Fiber Bragg Grating Wavelength Measurement Function
2. Physical Quantity Calculation Function
3. Data Display Function - Centralized Visualization
4. Data Display Function - Arbitrary Calculation
5. Data Graphical Display Function - Line Chart
6. Data Graphical Display Function - Bar Chart
7. Data Graphical Display Function - Dashboard
8. Data Graphical Display Function - Heatmap (Coming soon...)
This function is currently under development and will be launched soon...
9. Data Scenario Display Function - Customers can customize the use scenarios with their own images and display data within the scenarios. 
10. Spectrum Function - Auxiliary Tool
11. Data Saving Function - Offline Data Analysis and Post-processing
12. Warning and Alarm Function - Warning and alarm based on color changes in the data display
13. Warning and Alarm Function - Audio-visual warning and alarm based on extended hardware and software systems (Paid extension)
14. Configuration Diagram Function - User-customized configuration diagram based on extended hardware and software systems (Paid extension)
15. Industrial Control Function - Based on extended hardware and software systems (Paid extension)
Based on the data measured by the Fiber Bragg Grating, it interacts with the industrial control system to form a feedback system. A typical application is the OFSCN® Fiber Bragg Grating Demodulator/Interrogator controlling the temperature of a heating furnace by measuring the temperature using a Fiber Bragg Grating temperature sensor to keep it stable within the customer's specified range.
16. Customer Commissioned System Development Function - Based on extended hardware and software systems (Paid extension)
17. Data Integration and Secondary Development Function - Data Forwarding - Open interfaces and data formats for customer development
The OFSCN® Fiber Bragg Grating Demodulator/Interrogator can transmit data without any processing, only forwarding data according to customer requirements. At this point, the OFSCN® Fiber Bragg Grating Demodulator/Interrogator can be integrated with your own management system (recommended), or you can use the "Client/Server architecture (C/S architecture)" software provided by our company to access the Fiber Bragg Grating Demodulator/Interrogator for operation and management.
DCYS offers various common Fiber Bragg Grating Demodulator/Interrogator product parameters and services. Please click the provided link to view more details.