Single-Mode DTS Integrated Module
Product Overview
Distributed Optical Fiber Sensing (DOFS) systems utilize optical fibers as sensors. Based on the generation mechanisms of Rayleigh scattering, Brillouin scattering, and Raman scattering, and employing Optical Time Domain Reflectometer (OTDR) technology, these systems enable the measurement, analysis, monitoring, and localization of physical quantities (such as temperature, vibration, or strain) along the fiber.
DTS (Distributed Temperature Sensing) is primarily based on the temperature sensitivity of Raman scattering. Using OTDR principles, it employs optical fiber as a sensor for real-time temperature monitoring along the fiber, with a maximum monitoring range of up to 30 km.
Fholink's Single-Mode DTS Integrated Module integrates a DTS Raman light source, WDM, APD detector, and data acquisition card. Temperature information is directly output via an Ethernet interface. This module features high integration, compact size, and high reliability, making it suitable for distributed optical fiber temperature sensing systems.
Product Features
1. Built-in data acquisition card with temperature measurement algorithm – outputs temperature directly
2. Long sensing range – up to 30 km
3. Compatible with customer system integration – reduces R&D time
Technical Parameters
| Parameters | Parameters | Unit |
| Model | FH-DTS-30 | |
| Maximum Measurement Distance | 30 | km |
| Typical Measurement Distance | 25 | km |
| Sampling Resolution | 0.4 | m |
| Spatial Resolution | 5 | m |
| Positioning Accuracy | 5 | m |
| Temperature Accuracy | ±3 | ℃ |
| Temperature Resolution | 0.1 | ℃ |
| Temperature Measurement Range | -20 ～ +120 | ℃ |
| Remarks | It can be used with multi-channel optical switches, such as 1×4 optical switch or 1×8 optical switch. | |
| Parameters | Parameters | Unit | |
| Electrical Specifications | Supply Voltage | DC +12V/GND | |
| Power Consumption | <25W | Full Temperature Range | |
| Mechanical Dimensions | Dimensions | 250*150*35mm | |
| Pigtail Fiber Type | 9μm Single-Mode | Customizable | |
| Communication Interface Type | Output | RS485 | Modbus Protocol |
| RJ45 | UDP/TCP-IP | ||
| Software Interface | Output Temperature Information | ||
| Parameters | Min. | Max. | Unit |
| Operating Temperature Range | -10 | 55 | ℃ |
| Storage Temperature Range | -40 | 70 | ℃ |
| Relative Humidity | 5 | 90 | % |
Product Applications
1. DTS Distributed Optical Fiber Temperature Sensing
2. Power Cable Temperature Monitoring
3. Oil and Gas Pipeline Temperature Monitoring
4. Oilfield and Chemical Plant Fire Detection
5. Subway, Tunnel, and Building Fire Detection
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ꁇBackbone network
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ꁇMan/private network
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ꁇAccess network
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ꁇCore network
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ꁇSwitches
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ꁇOptical Transceivers
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ꁇNetwork
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ꁇLaser and sensing
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ꁇOptical Fiber Sensing
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ꁇOptical Component
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ꁇFiber Optic Patch Cord
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ꁇOptical Amplifier
