OPTICAL FIBER LOCATOR

OPTICAL FIBER LOCATOR

PURPOSE:To grasp a secular change by storing past measurement data on an optical fiber cable and comparing this stored data with new measurement data. CONSTITUTION:Light pulses of a laser diode 2 which synchronizes with a clock part 1 are sent out to an optical fiber 4 through a coupler 3. Then, Fre...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: SHIKAYAMA KAZUYOSHI, OOTSUKA FUJIO, FURUTA YOUSUKE, HOTSUTA MIKIO, NODA HIDEKI, ISHIHATA YOSHINORI
Format: Patent
Sprache:eng
Schlagworte:
MEASURING
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator SHIKAYAMA KAZUYOSHI
OOTSUKA FUJIO
FURUTA YOUSUKE
HOTSUTA MIKIO
NODA HIDEKI
ISHIHATA YOSHINORI
description PURPOSE:To grasp a secular change by storing past measurement data on an optical fiber cable and comparing this stored data with new measurement data. CONSTITUTION:Light pulses of a laser diode 2 which synchronizes with a clock part 1 are sent out to an optical fiber 4 through a coupler 3. Then, Fresnel reflected light is passed through an avalanche photodiode 5, amplifier 6, A/D converter 7, and adder 8 to remove noises, etc., coded, and processed by a processing part 9 to be displayed on a display part 12. The part data is stored in a memory 10 and the same measurement of the optical fiber is taken repeatedly to obtain current data, which is compared with the past data; and a comparative arithmetic part performs arithmetics 11 regarding the loss of the optical fiber and splice loss and the result is displayed on the display part 12. The locator is provided with the comparative arithmetic functions to represent a secular change in receive waveform, i.e. variation in the characteristics of the optical fiber in clear form.
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JPS5960338A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JPS5960338A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JPS5960338A3</originalsourceid><addsrcrecordid>eNrjZBD1DwjxdHb0UXDzdHINUvDxd3YM8Q_iYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxXgHBppZmBsbGFo7GRCgBAFzSHr4</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>OPTICAL FIBER LOCATOR</title><source>esp@cenet</source><creator>SHIKAYAMA KAZUYOSHI ; OOTSUKA FUJIO ; FURUTA YOUSUKE ; HOTSUTA MIKIO ; NODA HIDEKI ; ISHIHATA YOSHINORI</creator><creatorcontrib>SHIKAYAMA KAZUYOSHI ; OOTSUKA FUJIO ; FURUTA YOUSUKE ; HOTSUTA MIKIO ; NODA HIDEKI ; ISHIHATA YOSHINORI</creatorcontrib><description>PURPOSE:To grasp a secular change by storing past measurement data on an optical fiber cable and comparing this stored data with new measurement data. CONSTITUTION:Light pulses of a laser diode 2 which synchronizes with a clock part 1 are sent out to an optical fiber 4 through a coupler 3. Then, Fresnel reflected light is passed through an avalanche photodiode 5, amplifier 6, A/D converter 7, and adder 8 to remove noises, etc., coded, and processed by a processing part 9 to be displayed on a display part 12. The part data is stored in a memory 10 and the same measurement of the optical fiber is taken repeatedly to obtain current data, which is compared with the past data; and a comparative arithmetic part performs arithmetics 11 regarding the loss of the optical fiber and splice loss and the result is displayed on the display part 12. The locator is provided with the comparative arithmetic functions to represent a secular change in receive waveform, i.e. variation in the characteristics of the optical fiber in clear form.</description><language>eng</language><subject>MEASURING ; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; PHYSICS ; TESTING ; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES ; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</subject><creationdate>1984</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19840406&amp;DB=EPODOC&amp;CC=JP&amp;NR=S5960338A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19840406&amp;DB=EPODOC&amp;CC=JP&amp;NR=S5960338A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SHIKAYAMA KAZUYOSHI</creatorcontrib><creatorcontrib>OOTSUKA FUJIO</creatorcontrib><creatorcontrib>FURUTA YOUSUKE</creatorcontrib><creatorcontrib>HOTSUTA MIKIO</creatorcontrib><creatorcontrib>NODA HIDEKI</creatorcontrib><creatorcontrib>ISHIHATA YOSHINORI</creatorcontrib><title>OPTICAL FIBER LOCATOR</title><description>PURPOSE:To grasp a secular change by storing past measurement data on an optical fiber cable and comparing this stored data with new measurement data. CONSTITUTION:Light pulses of a laser diode 2 which synchronizes with a clock part 1 are sent out to an optical fiber 4 through a coupler 3. Then, Fresnel reflected light is passed through an avalanche photodiode 5, amplifier 6, A/D converter 7, and adder 8 to remove noises, etc., coded, and processed by a processing part 9 to be displayed on a display part 12. The part data is stored in a memory 10 and the same measurement of the optical fiber is taken repeatedly to obtain current data, which is compared with the past data; and a comparative arithmetic part performs arithmetics 11 regarding the loss of the optical fiber and splice loss and the result is displayed on the display part 12. The locator is provided with the comparative arithmetic functions to represent a secular change in receive waveform, i.e. variation in the characteristics of the optical fiber in clear form.</description><subject>MEASURING</subject><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</subject><subject>OPTICS</subject><subject>PHYSICS</subject><subject>TESTING</subject><subject>TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES</subject><subject>TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1984</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBD1DwjxdHb0UXDzdHINUvDxd3YM8Q_iYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxXgHBppZmBsbGFo7GRCgBAFzSHr4</recordid><startdate>19840406</startdate><enddate>19840406</enddate><creator>SHIKAYAMA KAZUYOSHI</creator><creator>OOTSUKA FUJIO</creator><creator>FURUTA YOUSUKE</creator><creator>HOTSUTA MIKIO</creator><creator>NODA HIDEKI</creator><creator>ISHIHATA YOSHINORI</creator><scope>EVB</scope></search><sort><creationdate>19840406</creationdate><title>OPTICAL FIBER LOCATOR</title><author>SHIKAYAMA KAZUYOSHI ; OOTSUKA FUJIO ; FURUTA YOUSUKE ; HOTSUTA MIKIO ; NODA HIDEKI ; ISHIHATA YOSHINORI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPS5960338A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1984</creationdate><topic>MEASURING</topic><topic>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</topic><topic>OPTICS</topic><topic>PHYSICS</topic><topic>TESTING</topic><topic>TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES</topic><topic>TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR</topic><toplevel>online_resources</toplevel><creatorcontrib>SHIKAYAMA KAZUYOSHI</creatorcontrib><creatorcontrib>OOTSUKA FUJIO</creatorcontrib><creatorcontrib>FURUTA YOUSUKE</creatorcontrib><creatorcontrib>HOTSUTA MIKIO</creatorcontrib><creatorcontrib>NODA HIDEKI</creatorcontrib><creatorcontrib>ISHIHATA YOSHINORI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SHIKAYAMA KAZUYOSHI</au><au>OOTSUKA FUJIO</au><au>FURUTA YOUSUKE</au><au>HOTSUTA MIKIO</au><au>NODA HIDEKI</au><au>ISHIHATA YOSHINORI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>OPTICAL FIBER LOCATOR</title><date>1984-04-06</date><risdate>1984</risdate><abstract>PURPOSE:To grasp a secular change by storing past measurement data on an optical fiber cable and comparing this stored data with new measurement data. CONSTITUTION:Light pulses of a laser diode 2 which synchronizes with a clock part 1 are sent out to an optical fiber 4 through a coupler 3. Then, Fresnel reflected light is passed through an avalanche photodiode 5, amplifier 6, A/D converter 7, and adder 8 to remove noises, etc., coded, and processed by a processing part 9 to be displayed on a display part 12. The part data is stored in a memory 10 and the same measurement of the optical fiber is taken repeatedly to obtain current data, which is compared with the past data; and a comparative arithmetic part performs arithmetics 11 regarding the loss of the optical fiber and splice loss and the result is displayed on the display part 12. The locator is provided with the comparative arithmetic functions to represent a secular change in receive waveform, i.e. variation in the characteristics of the optical fiber in clear form.</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng
recordid cdi_epo_espacenet_JPS5960338A
source esp@cenet
subjects MEASURING
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
title OPTICAL FIBER LOCATOR
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-22T07%3A56%3A42IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=SHIKAYAMA%20KAZUYOSHI&rft.date=1984-04-06&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EJPS5960338A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true