JPH0245137B2 - - Google Patents

Info

Publication number
JPH0245137B2
JPH0245137B2 JP59269964A JP26996484A JPH0245137B2 JP H0245137 B2 JPH0245137 B2 JP H0245137B2 JP 59269964 A JP59269964 A JP 59269964A JP 26996484 A JP26996484 A JP 26996484A JP H0245137 B2 JPH0245137 B2 JP H0245137B2
Authority
JP
Japan
Prior art keywords
light
signal
output
liquid
light source
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
JP59269964A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61147117A (ja
Inventor
Hiroshi Ko
Takashi Tokuyama
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.)
Fuji Tetsuku Kk
Original Assignee
Fuji Tetsuku Kk
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 Fuji Tetsuku Kk filed Critical Fuji Tetsuku Kk
Priority to JP59269964A priority Critical patent/JPS61147117A/ja
Priority to US06/729,117 priority patent/US4662225A/en
Priority to GB08510935A priority patent/GB2160319B/en
Publication of JPS61147117A publication Critical patent/JPS61147117A/ja
Publication of JPH0245137B2 publication Critical patent/JPH0245137B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
JP59269964A 1984-05-01 1984-12-20 感度補正付地震感知器 Granted JPS61147117A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP59269964A JPS61147117A (ja) 1984-12-20 1984-12-20 感度補正付地震感知器
US06/729,117 US4662225A (en) 1984-05-01 1985-04-30 Seismic detector
GB08510935A GB2160319B (en) 1984-05-01 1985-04-30 Detecting of seismic waves by sensing the movement of a liquid surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59269964A JPS61147117A (ja) 1984-12-20 1984-12-20 感度補正付地震感知器

Publications (2)

Publication Number Publication Date
JPS61147117A JPS61147117A (ja) 1986-07-04
JPH0245137B2 true JPH0245137B2 (enrdf_load_stackoverflow) 1990-10-08

Family

ID=17479672

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59269964A Granted JPS61147117A (ja) 1984-05-01 1984-12-20 感度補正付地震感知器

Country Status (1)

Country Link
JP (1) JPS61147117A (enrdf_load_stackoverflow)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5237789A (en) * 1975-09-20 1977-03-23 Agency Of Ind Science & Technol Process for production of photovoltaic elements
JPS5435116U (enrdf_load_stackoverflow) * 1977-08-11 1979-03-07
US4214485A (en) * 1978-06-07 1980-07-29 Paul J. Berger Electro-mechanical transducer
JPS60231120A (ja) * 1984-05-01 1985-11-16 Fujitec Co Ltd 地震感知器

Also Published As

Publication number Publication date
JPS61147117A (ja) 1986-07-04

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