DVS-A Module With Integrated Fiber Optic Vibration(DVS) and DAQ
The module is internally integrated with a DVS optical path for distributed fiber vibration and a data acquisition card with Gigabit Ethernet interface output, which only needs to be paired with a PC to form a DVS system.
Huang
Email: Hqy@ybphotonics.com
Product Info
Introduction
The module is internally integrated with a DVS optical path for distributed fiber vibration and a data acquisition card with Gigabit Ethernet interface output, which only needs to be paired with a PC to form a DVS system.
Overview
The DAS-A integrated module integrates the optical hardware components required for a distributed fiber optic vibration DVS system with a dedicated DVS data acquisition card. The module has built-in fiber optic demodulation algorithms and outputs signals via Gigabit Ethernet. The small size of the module makes it ideal for use in perimeter security projects, highway landslide short fiber monitoring, fiber optic cable finders and other portable devices.
FEATURES
- Highly integrated (UNL, AOM, EDFA, BPD, acquisition card)
- vibration data information Gigabit Ethernet port output
- Built-in fiber optic sensing demodulation algorithm
Applications
- φ-OTDR system
- DVS Distributed Vibration Monitoring
- Fiber Optic Cable Finder, portable device
- Perimeter Security, Power Pipeline Anti-Breach Monitoring
Performance Parameters
Module parameters
Min. Type. Max. Unit Notes Measuring Distance
60 km pulse width
50 500 ns preheating time
<5 Min operating voltage
23 25 V Power 12 13 18 W operating temperature -20 60 ℃ Storage temperature -30 70 ℃ communications interface Serial TTL
communications protocol Modbus-RTU Ultra-narrow linewidth light source Min. Type. Max. Unit Notes operating wavelength 1530 1550 1570 nm output power 10 13 dBm line width <3 kHz relative intensity noise <120 dB/Hz wavelength drift ±1 pm power stability ±2% Side mode rejection ratio 60 dB Pulsed EDFA Min. Type. Max. Unit Notes Operating wavelength range 1550.12 nm Input peak optical power 10 dBm Input average optical power -35 -30 dBm Output peak optical power 23 dBm Output average optical power 0 dBm repetition rate 100 kHz coefficient of noise 5.5 dB Polarization Related Gain 0.5 dB polarization mode dispersion 0.5 ps AOM Min. Type. Max. Unit Notes Operating wavelength range 1520 1550 1580 nm Average optical power 0.5 W Maximum pulsed light power 0.5 kW insertion loss 2.5 3 dB extinction ratio 50 dB Rise/fall time 30 ns frequency 80 MHz standing wave ratio (physics) 1.2:1 Input Impedance 50 Ω RF power 2.5 W frequency shift 80 MHz customizable Balance detector Min. Type. Max. Unit Notes bandwidths
200 MHz gain (electronics) 50 kV/A NEP 30 pW/Sqrt(Hz) Data Acquisition Cards
Min. Type. Max. Unit Notes sampling rate
100
MSps
Bits
12
Bits
analog bandwidth
50
Mhz
Input Impedance
50
Ω
bias voltage
-1
1 V settable
SFDR
88
dBc
channel number
1 2
output interface
RJ45, Gigabit Ethernet
IP address
192.168.137.2
Port
6002
transportation protocol
UDP
Fiber optic sensing demodulation algorithms
Support
Mechanical Dimension
Ordering Information
product
Detection distance Number of channels GY-DVS-A- 40：40km 1:1 channel 2:2 channels
For example: the detection distance is 40km, 1 channel DVS module, specific model number: GY-DVS-A-40-1
Unpacking and checking
Open the product box and check against the table below to make sure the following accessories are included, if any are missing, please contact us promptly.
Name Quantities DVS-A Integration Module 1 24V Power Module 1 USB to TTL Module 1 network cable 1 Product Test Report 1 user manual 1 Certificate of Conformity 1
Interface Definitions
The DVS-A integration module interfaces are defined in the following table
Interface Type silkscreen instructions Green Plug End子 24V DC power supply +24V supply GND DC power supply GND White Plug-in Terminal COM Serial port, TTL level, communication with PC for parameter adjustment Optical interface Sensor1 Sensing fiber 1, default FC/APC connector, single-channel products use this interface Optical interface Sensor2 Connect to sensing fiber 2, default FC/APC connector Network interface OUT1 Module Network Interface Network interface OUT2 Reserve
Hardware Commissioning
Before starting to install the equipment, please be sure to read the “User Manual” carefully and follow the operating procedures specified in the “User Manual” to carry out installation and commissioning.
The test platform is shown in the figure below. Due to the high output optical power of the Sensor port (about 500mW), make sure that the Sensor port is connected to a sensing fiber or flange for attenuation before powering on the test platform, and do not look directly at the port with your eyes.
The entire module is connected to the sensing system, and the EDFA power as well as the VOA value are adjusted through the COM serial port.
Schematic
The module is internally integrated with a DVS optical path for distributed fiber vibration and a data acquisition card with Gigabit Ethernet interface output, which only needs to be paired with a PC to form a DVS system.
Overview
The DAS-A integrated module integrates the optical hardware components required for a distributed fiber optic vibration DVS system with a dedicated DVS data acquisition card. The module has built-in fiber optic demodulation algorithms and outputs signals via Gigabit Ethernet. The small size of the module makes it ideal for use in perimeter security projects, highway landslide short fiber monitoring, fiber optic cable finders and other portable devices.
FEATURES
- Highly integrated (UNL, AOM, EDFA, BPD, acquisition card)
- vibration data information Gigabit Ethernet port output
- Built-in fiber optic sensing demodulation algorithm
Applications
- φ-OTDR system
- DVS Distributed Vibration Monitoring
- Fiber Optic Cable Finder, portable device
- Perimeter Security, Power Pipeline Anti-Breach Monitoring
Performance Parameters
| Module parameters | Min. | Type. | Max. | Unit | Notes |
|---|---|---|---|---|---|
| Measuring Distance | 60 | km | |||
| pulse width | 50 | 500 | ns | ||
| preheating time | <5 | Min | |||
| operating voltage | 23 | 25 | V | ||
| Power | 12 | 13 | 18 | W | |
| operating temperature | -20 | 60 | ℃ | ||
| Storage temperature | -30 | 70 | ℃ | ||
| communications interface | Serial TTL | ||||
| communications protocol | Modbus-RTU | ||||
| Ultra-narrow linewidth light source | Min. | Type. | Max. | Unit | Notes |
| operating wavelength | 1530 | 1550 | 1570 | nm | |
| output power | 10 | 13 | dBm | ||
| line width | <3 | kHz | |||
| relative intensity noise | <120 | dB/Hz | |||
| wavelength drift | ±1 | pm | |||
| power stability | ±2% | ||||
| Side mode rejection ratio | 60 | dB | |||
| Pulsed EDFA | Min. | Type. | Max. | Unit | Notes |
| Operating wavelength range | 1550.12 | nm | |||
| Input peak optical power | 10 | dBm | |||
| Input average optical power | -35 | -30 | dBm | ||
| Output peak optical power | 23 | dBm | |||
| Output average optical power | 0 | dBm | |||
| repetition rate | 100 | kHz | |||
| coefficient of noise | 5.5 | dB | |||
| Polarization Related Gain | 0.5 | dB | |||
| polarization mode dispersion | 0.5 | ps | |||
| AOM | Min. | Type. | Max. | Unit | Notes |
| Operating wavelength range | 1520 | 1550 | 1580 | nm | |
| Average optical power | 0.5 | W | |||
| Maximum pulsed light power | 0.5 | kW | |||
| insertion loss | 2.5 | 3 | dB | ||
| extinction ratio | 50 | dB | |||
| Rise/fall time | 30 | ns | |||
| frequency | 80 | MHz | |||
| standing wave ratio (physics) | 1.2:1 | ||||
| Input Impedance | 50 | Ω | |||
| RF power | 2.5 | W | |||
| frequency shift | 80 | MHz | customizable | ||
| Balance detector | Min. | Type. | Max. | Unit | Notes |
| bandwidths | 200 | MHz | |||
| gain (electronics) | 50 | kV/A | |||
| NEP | 30 | pW/Sqrt(Hz) | |||
| Data Acquisition Cards | Min. | Type. | Max. | Unit | Notes |
| sampling rate | 100 | MSps | |||
| Bits | 12 | Bits | |||
| analog bandwidth | 50 | Mhz | |||
| Input Impedance | 50 | Ω | |||
| bias voltage | -1 | 1 | V | settable | |
| SFDR | 88 | dBc | |||
| channel number | 1 | 2 | |||
| output interface | RJ45, Gigabit Ethernet | ||||
| IP address | 192.168.137.2 | ||||
| Port | 6002 | ||||
| transportation protocol | UDP | ||||
| Fiber optic sensing demodulation algorithms | Support | ||||
Mechanical Dimension
Ordering Information
| product | Detection distance | Number of channels |
|---|---|---|
| GY-DVS-A- | 40：40km | 1:1 channel |
| 2:2 channels |
For example: the detection distance is 40km, 1 channel DVS module, specific model number: GY-DVS-A-40-1
Unpacking and checking
Open the product box and check against the table below to make sure the following accessories are included, if any are missing, please contact us promptly.
| Name | Quantities |
|---|---|
| DVS-A Integration Module | 1 |
| 24V Power Module | 1 |
| USB to TTL Module | 1 |
| network cable | 1 |
| Product Test Report | 1 |
| user manual | 1 |
| Certificate of Conformity | 1 |
Interface Definitions
The DVS-A integration module interfaces are defined in the following table
| Interface Type | silkscreen | instructions |
|---|---|---|
| Green Plug End子 | 24V | DC power supply +24V supply |
| GND | DC power supply GND | |
| White Plug-in Terminal | COM | Serial port, TTL level, communication with PC for parameter adjustment |
| Optical interface | Sensor1 | Sensing fiber 1, default FC/APC connector, single-channel products use this interface |
| Optical interface | Sensor2 | Connect to sensing fiber 2, default FC/APC connector |
| Network interface | OUT1 | Module Network Interface |
| Network interface | OUT2 | Reserve |
Hardware Commissioning
Before starting to install the equipment, please be sure to read the “User Manual” carefully and follow the operating procedures specified in the “User Manual” to carry out installation and commissioning.
The test platform is shown in the figure below. Due to the high output optical power of the Sensor port (about 500mW), make sure that the Sensor port is connected to a sensing fiber or flange for attenuation before powering on the test platform, and do not look directly at the port with your eyes.
The entire module is connected to the sensing system, and the EDFA power as well as the VOA value are adjusted through the COM serial port.
Schematic
