Ma muli o ka hopena scattering Brillouin i hoʻoulu ʻia, hoʻohana ka Brillouin optical time domain analyzer BOTDA i ʻelua mau kumu kukui laser linewidth ultra-narrow, ʻo ia hoʻi ka pump (pulsed optical signal) a me ka probe (continuous optical signal), e hoʻokomo i nā hōʻailona optical ma nā kihi ʻelua o ka. ʻike i ka fiber, ana a ʻike i nā hōʻailona optical ma ka pulsed optical hope o ka fiber sensing, a hana i ka loaʻa a me ka hana ʻana i ka ʻikepili kiʻekiʻe.
· Ka lōʻihi lōʻihi hoʻomau puʻunaue ana, me ka loa ana ana o 60km
· Ke ana wela, kānana a me ke ʻano kikoʻī
· Kiʻekiʻe ana pololei, paʻa a hilinaʻi ana
· ʻAʻole i hoʻopili ʻia e ka hoʻololi ʻana o ke kumu māmā, fiber microbending, fiber hydrogen loss, etc.
· Hiki ke hoʻohana pono ʻia ka fiber kamaʻilio ʻano hoʻokahi i ka sensor, a hoʻohui ʻia ka "transmission" a me ka "sense".
BOTDA 1000 | |
ʻAno fiber | ʻO G.652/ G.655/G.657 maʻamau maʻamau hoʻokahi-mode optical fiber |
Ana ana i ka mamao | 60 km ((loop 120km) |
Ana manawa | 60s |
Ke ana pololei | ± 1 ℃ / ± 20 µ ε |
ʻokoʻa ana | 0.1 ℃ / 2 µ ε |
Wawa hoʻohālike | 0.1-2m (Hiki ke hoʻonohonoho ʻia) |
Laki hoʻokaʻawale spatial | 0.5-5m (Hiki ke hoʻonohonoho ʻia) |
Laulā ana | - 200 ℃ + 400 ℃ / 10 000 µε← + 10000 µε (ma muli o ka fiber optical) |
Hoʻopili fiber Optical | FC/APC |
Pākuʻi kamaʻilio | Ethernet, RS232/ RS485/USB |
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Kūlana hana | (-10 +50) ℃,0-95% RH(ʻAʻohe condensation) |
lako mana hana | DC 24V/AC220V |
Nui | 483mm(W) x 447mm(D) x 133mm(H), 19 - дюймовый штатив |