DTS Integration Module Internally integrated Laser+ WDM + APD+DAQ
GY-DTS-M is a DTS integrated module, which integrates laser+WDM+APD+acquisition card, greatly simplifying the complexity of the system, and adopts the Gigabit Ethernet UDP protocol to collect data, and the module can output Stokes light and anti-Stokes light signals.
Huang
Email: Hqy@ybphotonics.com
Product Info
Introduction
GY-DTS-M is a DTS integrated module, the module in the laser + WDM + APD + acquisition card is integrated, greatly simplifying the complexity of the system, using the Gigabit network interface UDP protocol for data acquisition, the module can output Stokes light and anti-Stokes light signals; the user only needs to focus on the development of the DTS host demodulation software.
Applicable User
Price-sensitive DTS corporate research users with software development capabilities, simplified system wiring, focus on demodulation algorithms.
Product Features
- Highly integrated with small module size
- UDP network communication for easy-to-use data reading.
Parameters
params Unit Min. Type. Max. center wavelength
nm - 1550.12 - spectral widt（ 20dB） nm - 0.3 1 Output peak optical power W 30 repetition rate
kHz 5 - 20 pulse width
ns 5 - 120 sampling rate
MSps
250
sampling resolution
m
0.4
operating temperature
℃ -15 - 55 Storage temperature
℃ -40 - 85 power wastage
W - 13
operating voltage
V 9 12 13 data output interface
/
Gigabit Ethernet port, UDP protocol
Laser communication protocols / Modbus RTU slave Pigtail Type / 62.5/125 multimode fiber, FC/APC connector (or customer specified) Output Fiber Length m ≥1
To evaluate the performance of this module, we developed a demodulation software. The following test data was obtained.
Test fiber optic cable length: 5000 meters
Parameter
Value End-of-line noise
±1℃
Temperature Accuracy
±1℃
Spatial resolution
1.2m
End-of-line noise: Lowest point in the green box at 22°C, highest point at 24°C, with noise level tolerance of ±1°C.
Spatial Resolution: Refers to the effective spatial distance along the fiber length during sensing. At the disturbance location, the fiber length corresponding to the distance between the fiber segments where the measured step change value of the disturbance information falls between 10% and 90% constitutes the spatial resolution fiber length. As shown below: The temperature measurement coil's 90% corresponds to coordinates (12823, 54), while 10% corresponds to coordinates (12820, 27).
Therefore, the spatial resolution = (12823 - 12820) × 0.4 = 1.2 m.
Temperature accuracy, as shown in the figure below:
Water Bath Temperature (°C)
Our demodulation software readings (°C)
30
30（±1）
50 50（±1）
70 70（±1）
GY-DTS-M is a DTS integrated module, the module in the laser + WDM + APD + acquisition card is integrated, greatly simplifying the complexity of the system, using the Gigabit network interface UDP protocol for data acquisition, the module can output Stokes light and anti-Stokes light signals; the user only needs to focus on the development of the DTS host demodulation software.
Applicable User
Price-sensitive DTS corporate research users with software development capabilities, simplified system wiring, focus on demodulation algorithms.
Product Features
- Highly integrated with small module size
- UDP network communication for easy-to-use data reading.
Parameters
| params | Unit | Min. | Type. | Max. |
|---|---|---|---|---|
| center wavelength | nm | - | 1550.12 | - |
| spectral widt（ 20dB） | nm | - | 0.3 | 1 |
| Output peak optical power | W | 30 | ||
| repetition rate | kHz | 5 | - | 20 |
| pulse width | ns | 5 | - | 120 |
| sampling rate | MSps | 250 | ||
| sampling resolution | m | 0.4 | ||
| operating temperature | ℃ | -15 | - | 55 |
| Storage temperature | ℃ | -40 | - | 85 |
| power wastage | W | - | 13 | |
| operating voltage | V | 9 | 12 | 13 |
| data output interface | / | Gigabit Ethernet port, UDP protocol | ||
| Laser communication protocols | / | Modbus RTU slave | ||
| Pigtail Type | / | 62.5/125 multimode fiber, FC/APC connector (or customer specified) | ||
| Output Fiber Length | m | ≥1 | ||
To evaluate the performance of this module, we developed a demodulation software. The following test data was obtained.
Test fiber optic cable length: 5000 meters
| Parameter | Value |
|---|---|
| End-of-line noise | ±1℃ |
| Temperature Accuracy | ±1℃ |
| Spatial resolution | 1.2m |
End-of-line noise: Lowest point in the green box at 22°C, highest point at 24°C, with noise level tolerance of ±1°C.
Spatial Resolution: Refers to the effective spatial distance along the fiber length during sensing. At the disturbance location, the fiber length corresponding to the distance between the fiber segments where the measured step change value of the disturbance information falls between 10% and 90% constitutes the spatial resolution fiber length. As shown below: The temperature measurement coil's 90% corresponds to coordinates (12823, 54), while 10% corresponds to coordinates (12820, 27).
Therefore, the spatial resolution = (12823 - 12820) × 0.4 = 1.2 m.
Temperature accuracy, as shown in the figure below:
| Water Bath Temperature (°C) | Our demodulation software readings (°C) |
|---|---|
| 30 | 30（±1） |
| 50 | 50（±1） |
| 70 | 70（±1） |
