Neubrex Co., Ltd. - NEUBRESCOPE NBX-7031 (Specs)

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NBX-7035 Specifications

General Function	Separation of strain and temperature measured in single optical fiber TW-COTDR / PSP-BOTDR / BOTDR
Function	TW-COTDR
Laser wavelength	1530 nm ~ 1560 nm
Distance range	50 m ~ 10 km, 20 km, 40 km, 80 km
Measurement frequency range	192000 ~ 193000 GHz
Range of strain measurements	-5,000 ~ +5,000με (-0.5% ~ +0.5%)
Measurement frequency scan step	4 MHz ~ 500 MHz (5 MHz step)
Readout resolution	5 cm, 10 cm, 20 cm
Sampling points	500,000 (default)
Average count settings	2^5~2^23 times　(including Hardware Average Count 2^5~2^16)
Function	TW-COTDR
Pulse width	0.5 ns	1 ns		2 ns	5 ns		10 ns
Spatial resolution	5 cm	10 cm		20 cm	50 cm		100 cm
Dynamic range^*1	2 dB	5 dB		8 dB	12 dB		15 dB
Max. measurement distance^*2	10 km	25 km		40 km	60 km		75 km
Optical budget^18	4 dB	7 dB		10 dB	14 dB		17 dB
Measurement accuracy^3456*7	20 nε / 0.001 ℃
Short time repeatability^3456*7	10 nε / 0.002 ℃
Long time repeatability^3456*7	20 nε / 0.001 ℃
Measurement time^67	10 seconds (minimum)
Measurement accuracy for hybrid mode^*9	4 με / 0.25 ℃
Repeatability for hybrid mode^*9	4 με / 0.25 ℃
Input-output fIber	Single mode optical fiber
Fiber connector	FC-APC (default)
Suitable fiber	Single mode optical fiber
Power supply	AC100~240 V 50/60 Hz 350 VA
Laser class	Class 1 (IEC60825-1: 2001)
Dimensions / Weight	450(W)×658(D)×295(H) mm / 35 kg
Operating temperature	10~35℃, Humidity below 85% (no dew condensation)
Storage temperature	0~50℃
Place of production	Japan
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Function	PSP-BOTDR				BOTDR
Laser wavelength	1550±2 nm				1550±2 nm
Distance range	50 m ~ 10 km, 20 km, 40 km, 80 km
Measurement frequency range	9~13 GHz, 1 GHz/time
Range of strain measurements	-4,000~ +4,000 με　(-0.4 % ~ +0.4%)				-30,000 ~ +40,000 με 　(-3 % ~ +4 %)
Measurement frequency scan step	4, 8, 16 MHz				4 MHz ~ 50 MHz
Readout resolution	5 cm, 10 cm, 20 cm
Sampling points	500,000 (default)
Average count settings	2^5~2^23 times　(including Hardware Average Count 2^5~2^16)
Function	PSP-BOTDR				BOTDR
Pulse width	1 ns	2 ns	5 ns	10 ns	5 ns	10 ns	20 ns	50 ns
Spatial resolution	10 cm	20 cm	50 cm	100 cm	0.5 m	1 m	2 m	5 m
Dynamic range^*1	0.5 dB	2 dB	5 dB	7 dB	3 dB	6 dB	9 dB	13 dB
Max. measurement distance^*2	1 km	5 km	20 km	30 km	10 km	25 km	40 km	60 km
Optical budget^18	1 dB	4 dB	7 dB	9 dB	5 dB	8 dB	11 dB	15 dB
Measurement accuracy^3456*7	4 με / 0.25 ℃				30 με / 1.5 ℃
Short time repeatability^3456*7	2 με / 0.1 ℃				20 με / 1.0 ℃
Long time repeatability^3456*7	4 με / 0.25 ℃				10 με / 0.5 ℃
Measurement time^67	10 seconds (minimum)				30 seconds (minimum)
Measurement accuracy for hybrid mode^*9	4 με / 0.25 ℃				30 με / 1.5 ℃
Repeatability for hybrid mode^*9	4 με / 0.25 ℃				30 με / 1.5 ℃
Input-output fIber	Single mode optical fiber
Fiber connector	FC-APC (default)
Suitable fiber	Single mode optical fiber
Power supply	AC100~240 V 50/60 Hz 350 VA
Laser class	Class 1 (IEC60825-1: 2001)
Dimensions / Weight	450(W)×658(D)×295(H) mm / 35 kg
Operating temperature	10~35℃, Humidity below 85% (no dew condensation)
Storage temperature	0~50℃
Place of production	Japan

(2025/07/14)

*1	Based on 2^15 average cycles (TW-COTDR) / Based on 2^18 average cycles in progressive measurement mode (PSP-BOTDR or BOTDR).
*2	Based on average fiber loss of 0.2 dB/km using SM optical fiber (UV type).
*3	Based on the measurement of strain-free SM optical fiber (UV type).
*4	Based on the measurement of strain-free SM optical fiber (UV type) and in constant temperature environment.
*5	The maximum deviation range of measurement value for 5 consecutive measurements for 100 consecutive points.
*6	Within the settings of 50m range, 2^14 count settings, 41 scan steps excluding the time for Pulse Adjustment.
*7	Within the settings of 50m range, 2^10 count settings, 401 scan steps excluding the time for Pulse Adjustment.
*8	Within the allowable range being adjusted by the optical power, except the case of nonlinear phenomina.
*9	The measurement mode of TW-COTDR and PSP-BOTDR or BOTDR used with conditions of 1-8 applied.

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