JPS61165432U - - Google Patents

Info

Publication number

JPS61165432U

JPS61165432U JP4887885U JP4887885U JPS61165432U JP S61165432 U JPS61165432 U JP S61165432U JP 4887885 U JP4887885 U JP 4887885U JP 4887885 U JP4887885 U JP 4887885U JP S61165432 U JPS61165432 U JP S61165432U

Authority

JP

Japan

Prior art keywords

optical fiber

detection device

abnormality

abnormality detection

sensor

Prior art date

1985-04-02

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Pending

Links

• Espacenet
• Global Dossier
• Discuss

• 230000005856 abnormality Effects 0.000 claims description 11
• 239000013307 optical fiber Substances 0.000 claims description 8
• 238000001514 detection method Methods 0.000 claims description 6
• 230000000694 effects Effects 0.000 claims description 2
• 108091008695 photoreceptors Proteins 0.000 claims 2
• 238000010586 diagram Methods 0.000 description 1