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NEUBRESCOPE™ (Patent pending)
NBX-6000(PM) Specifications ・ Photo
| laser wavelength | 1550±2 nm | ||||
| extinction ratio in polarization | ≧15dB | ||||
| measuring object | strain distribution,temperature distribution,BGS,SBS distribution,center frequency distribution | ||||
| distance range | 50m,100m,250m,500m,1km,2.5km,5km,10km,25km | ||||
| measurement frequency range | 9 ∼ 13 GHz | ||||
| range of strain measurement | -30,000 to +40,000με (-3% to 4%) | ||||
| measurement frequency scan step | 1,2,5,10,20,50 MHz | ||||
| readout resolution | 5cm (min） | ||||
| average count settings | 2^5 ∼ 2^23 | ||||
| pulse width | 1 ns | 2 ns | 5 ns | 10 ns | |
| spatial resolution | 10 cm | 20 cm | 50 cm | 100 cm | |
| dynamic range *1 | 2 dB | 3 dB | 5 dB | 7 dB | |
| max. measurement distance *2 | 5 km | 10 km | 15 km | 25 km | |
| optical budget *6 | 5 dB | 7 dB | 8 dB | 10 dB | |
| strain measurement accuracy*3 | ±25 με | ||||
| temperature measurement accuracy *4 | ±1 ℃ | ||||
| repeatability*3*4*5 | ±10 με / ±0.5 ℃ | ||||
| measurement speed*7 | 2 minutes(min) | ||||
| siginal terminal ・ | signal fiber | PANDA fiber・ |  |
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| fiber connector | FC-PC / SC-PC (factory option) | ||||
| polarization plane | vertical (slow axes, Y direction) | ||||
| suitable fiber | PANDA fiber | ||||
| power supply | AC100 ∼240V 50/60Hz 250VA | ||||
| laser class | CLASS 1 (IEC60825-1: 2001) | ||||
| dimensions / weight | approx. 456(W)×485(D)×286(H) mm (total) / 30kg | ||||
| operating temperature | 10 ℃∼ 35 ℃ / humidity below 85% (no dew condensation) | ||||
| storage temperature | 0 ∼50℃ | ||||
| place of production | Japan | ||||
| (2008/04/02) | |||||
| *1 Based on 2^15 average cycles | |||||
| *2 Based on average fiber loss of 0.3 dB/km using PANDA fiber | |||||
| *3 Based on the measurement of strain-free PANDA fiber | |||||
| *4 Based on the measurement of strain-free PANDA fiber and in constant temperature environment | |||||
| *5 The deviation range of measurement value for 5 consecutive measurements for 100 consecutive points | |||||
| *6 Within the allowable range being adjusted by the optical power, except the case of nonlinear phenomena | |||||
| *7 Within the setting of 50m range, 2^13count settings, 41scan steps except the time of Pre-Pump Adjustment | |||||
| *1-*5 are based on a frequency san step of 5 MHz and with Pre-Pump Adjustment and Auto Frequency Adjustment on. | |||||
