Features
● Nondestructive measurement through single-end
● Distribution measurement of Brillouin scattering spectrum width
● Distribution measurement of optical fiber strain
● Distribution measurement of optical fiber loss
● Measurement of Brillouin scattering spectrum
● Display multiple distribution traces simultaneously
● 3D display of loss distribution
● Large screen color LCD display, touch screen operation
● Built-in visual fault locator
● System software on-line updating, no need to return to factory
General Specification
wavelength | 1550nm±5nm |
Optical fiber type | Single-mode fiber |
Maximum dynamic range | 15dB |
Strain distance resolution | 1m |
Distance accuracy | ±(0.2+2*sample resolution+2*10-5*measurement distance)(m) |
Strain measurement accuracy | ±50με(10-20ns) ±10με(50-200ns) |
Strain measurement repeatability | ≤±100με |
Strain measurement range | -15000~+15000(με) |
Measurement range | 0.5,1,2,5,10,20,40,80km |
Pulse width | 10,20,50,100,200ns |
Average time setting | 210~224 |
Readout resolution | 0.05m |
Sampling points | 20000 |
Refractive index setting | 1.00000-1.99999;0.00001step |
Measurement frequency span | 1,2,5,10,20,50MHz |
Measurement frequency range | 9.9GHz~12.0GHz |
Display | 10.4-inch TFT,1024*768 resolution |
Interface Language | Simplified Chinese /English |
Interface | VGA,RS232C,USB,Ethernet,earphone |
Optical connector | FC/APC(conveniently replaced by SC or ST connector) |
VFL | 650nm±30nm,2mw(Typical);operation mode:CW,1Hz,2Hz |
Power Supply | AC power:100 ~ 242VAC(1.5A),50/60Hz |
Maximum power dissipation | 100W |
Dimensions | 435(W)*230(H)*495(D)mm |
Weight | ≤20kg |
Environmental conditions | Operational temperature:0℃~+40℃; Storage temperature:-20℃~+65℃ Humidity:5%-90%, no condensation |
Notes:
1. Pulse width 200ns, average times 216, frequency sweep range 200MHz, frequency sweep span 5MHz;
2. Average times 216,frequency sweep range 200MHz, frequency sweep span 5MHz.
Accessories
No. | Name | Quantity |
1 | Power line | 1 |
2 | Product certificate of conformity | 1 |
3 | User manual | 1 |
4 | USB interface mouse | 1 |
5 | optical transfer jumper(FC/APC to FC/UPC) | 1 |
Typical experiment
a. Experiment of repeatability of strain measurement
Optical fiber strain due to the stretching can be found obviously at the location of0.3157km, and the strain is about 4992.6με .
The right figure shows the successive 10 times strain measurementresults using IDP6420, from which we can conclude the repeatability of strain measured by IDP6420 is excellent.
b. Distributed strain of optical fiber ring In the process of developing and producing of FOG, IDP6421BOTDR can be used to measuring the distributed strain of optical fiber ring of FOG.
c. The calibration experiment of the temperature coefficient of optical fiber under test
The relation curve between Brillouin frequence shift and Temperature:
The optical fiber under test was G.652 SM. In the upper figures, the left figure shows the measurement trace of temperature range from 30℃ to 50℃with the span of 1℃, and the right figure shows the trace of temperature range from 50℃ to 90℃ with the span of 1℃(below 50℃) and 5℃(over 50℃). According to the left figure, it can be found out the temperature resolution of AV6419 can be 0.5℃ actually.
