JPH0340280B2 - - Google Patents

Info

Publication number
JPH0340280B2
JPH0340280B2 JP58155959A JP15595983A JPH0340280B2 JP H0340280 B2 JPH0340280 B2 JP H0340280B2 JP 58155959 A JP58155959 A JP 58155959A JP 15595983 A JP15595983 A JP 15595983A JP H0340280 B2 JPH0340280 B2 JP H0340280B2
Authority
JP
Japan
Prior art keywords
optical fiber
spacer
line sensor
underground
longitudinal direction
Prior art date
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.)
Expired - Lifetime
Application number
JP58155959A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6049200A (ja
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP15595983A priority Critical patent/JPS6049200A/ja
Publication of JPS6049200A publication Critical patent/JPS6049200A/ja
Publication of JPH0340280B2 publication Critical patent/JPH0340280B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Pipeline Systems (AREA)
JP15595983A 1983-08-25 1983-08-25 地中埋設物異常監視システム Granted JPS6049200A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15595983A JPS6049200A (ja) 1983-08-25 1983-08-25 地中埋設物異常監視システム

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15595983A JPS6049200A (ja) 1983-08-25 1983-08-25 地中埋設物異常監視システム

Publications (2)

Publication Number Publication Date
JPS6049200A JPS6049200A (ja) 1985-03-18
JPH0340280B2 true JPH0340280B2 (en]) 1991-06-18

Family

ID=15617270

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15595983A Granted JPS6049200A (ja) 1983-08-25 1983-08-25 地中埋設物異常監視システム

Country Status (1)

Country Link
JP (1) JPS6049200A (en])

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0676172A (ja) * 1991-04-16 1994-03-18 Sumitomo Electric Ind Ltd 防犯用検知装置
JP3536500B2 (ja) * 1996-01-12 2004-06-07 松下電工株式会社 生体信号検出装置
JP3536512B2 (ja) * 1996-03-15 2004-06-14 松下電工株式会社 生体信号検出装置
US6030347A (en) * 1996-01-12 2000-02-29 Matsushita Electric Works, Ltd. Biological-signal detecting device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57122352A (en) * 1981-01-23 1982-07-30 Fujitsu Ltd System for detecting destruction of road
JPS5855731A (ja) * 1981-09-28 1983-04-02 Fujitsu Ltd 圧力センサ

Also Published As

Publication number Publication date
JPS6049200A (ja) 1985-03-18

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