JPH0160772B2 - - Google Patents

Info

Publication number
JPH0160772B2
JPH0160772B2 JP57120209A JP12020982A JPH0160772B2 JP H0160772 B2 JPH0160772 B2 JP H0160772B2 JP 57120209 A JP57120209 A JP 57120209A JP 12020982 A JP12020982 A JP 12020982A JP H0160772 B2 JPH0160772 B2 JP H0160772B2
Authority
JP
Japan
Prior art keywords
magnetic
magnetic ball
ball
magnet
iron core
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
Application number
JP57120209A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5910820A (ja
Inventor
Akihiro Sakamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Priority to JP57120209A priority Critical patent/JPS5910820A/ja
Publication of JPS5910820A publication Critical patent/JPS5910820A/ja
Publication of JPH0160772B2 publication Critical patent/JPH0160772B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/01—Measuring or predicting earthquakes

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
JP57120209A 1982-07-09 1982-07-09 感震器 Granted JPS5910820A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57120209A JPS5910820A (ja) 1982-07-09 1982-07-09 感震器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57120209A JPS5910820A (ja) 1982-07-09 1982-07-09 感震器

Publications (2)

Publication Number Publication Date
JPS5910820A JPS5910820A (ja) 1984-01-20
JPH0160772B2 true JPH0160772B2 (enExample) 1989-12-25

Family

ID=14780596

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57120209A Granted JPS5910820A (ja) 1982-07-09 1982-07-09 感震器

Country Status (1)

Country Link
JP (1) JPS5910820A (enExample)

Also Published As

Publication number Publication date
JPS5910820A (ja) 1984-01-20

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