| Laser Wavelength |
1550±2 nm
|
| Distance Range |
50m, 100m, 250m, 500m, 1km, 2.5km, 5km, 10km, 25 km |
| Measurement Frequency Range |
9～13 GHz
|
| Range of Strain Measurements |
-30,000 ～ +40,000με (-3% ～ 4%)
|
| Measurement Frequency Scan Step |
1, 2, 5, 10, 20, 50MHz
|
| Readout Resolution |
5 cm (minimum) |
| Sampling Points |
600,000 (default) |
| Average Count Settings |
2^5～2^23 times (inc. Hardware Average Count 2^16) |
Function
|
PPP-BOTDA |
BOTDR |
Pulse Width
|
2 ns |
5 ns |
10 ns |
5 ns |
10 ns |
20 ns |
50 ns |
Spatial Resolution
|
20 cm |
50 cm |
100 cm |
50 cm |
100 cm |
200 cm |
500 cm |
| Dynamic Range*1 |
2 dB |
3 dB |
6 dB |
2 dB |
3 dB |
5 dB |
7 dB |
| Max. Measurement Distance (approx.)*2 |
5 km |
10 km |
20 km |
5 km |
10 km |
15 km |
20 km |
| Optical Budget*1*6 |
7 dB |
8 dB |
10 dB |
4 dB |
5 dB |
7 dB |
8 dB |
| Measurement Accuracy*3 |
15με/ 0.75 ℃ |
30με/ 1.5 ℃ |
| Repeatability(σ)*3*4*5 |
10με/ 0.5 ℃ |
75με
/ 3.5℃ |
50με
/ 2.5℃ |
20με/ 1 ℃ |
| Measurement Time*7 |
5 seconds (minimum)
|
Measurement Speed
|
FS mode*8 |
15 Hz (maximum)
|
| AT mode*9 |
550 Hz (maximum)
|
Suitable Fiber
|
Single Mode Optical Fiber
|
| Fiber Connecter |
FC-APC / SC-APC (factory option)
|
| Power Supply |
AC100～240V 50/60Hz 250VA |
Laser Class
|
Class 1 (IEC60825-1: 2001) |
Dimensions / Weights
|
456(W)×485(D)×286(H) mm / 30 kg |
Operating Temperature
|
10～35℃, Humidity below 85 % (no dew condensation) |
Storage Temperature
|
0～50℃ |
Place of Production
|
Japan |
| *1 |
Based on 2^15 average cycles (BOTDR) / Based on 2^15 average cycles in progressive measurement mode (PPP-BOTDA). |
| *2 |
Based on average fiber loss of 0.3 dB/km using single mode fiber. |
| *3 |
Based on the measurement of strain-free, UV-coated fiber. |
| *4 |
Based on the measurement with strain-free, UV-coated fiber and in constant temperature environment. |
| *5 |
Maximum standard deviation of measurement value in 5 consecutive measurements for 100 consecutive points. |
| *6 |
Within the allowable range adjusted by the optical power excluding the case of nonlinear phenomena.
|
| *7 |
The settings of 50 m distance range, 2^14 count settings, 41 scanning steps excluding the time for Pulse Adjustment. |
| *8 |
The settings of 50 m range, 2^8 count settings, 41 scanning steps in batch processing mode (PPP-BOTDA only). |
| *9 |
The settings of 50 m range, 2^8 count settings, 1 scanning step in batch processing mode.
|
| *1-*6 are all based on a frequency scan step of 5 MHz and with Pulse Adjustment and Auto Frequency Adjustment on. |
Neubrex Co., Ltd. Sakaemachidori 1-1-24, Chuo-ku, Kobe, Hyogo, 650-0023 JAPAN [map]
Copyright © 2007 Neubrex Co., Ltd. Tel:+81-78-335-3510/Fax:+81-78-335-3515 E-Mail: info@neubrex.jp |
