JPH0245133B2 - - Google Patents

Info

Publication number
JPH0245133B2
JPH0245133B2 JP59088902A JP8890284A JPH0245133B2 JP H0245133 B2 JPH0245133 B2 JP H0245133B2 JP 59088902 A JP59088902 A JP 59088902A JP 8890284 A JP8890284 A JP 8890284A JP H0245133 B2 JPH0245133 B2 JP H0245133B2
Authority
JP
Japan
Prior art keywords
liquid
light
output
container
photoelectric conversion
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
JP59088902A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60231120A (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 JP59088902A priority Critical patent/JPS60231120A/ja
Priority to GB08510935A priority patent/GB2160319B/en
Priority to US06/729,117 priority patent/US4662225A/en
Publication of JPS60231120A publication Critical patent/JPS60231120A/ja
Publication of JPH0245133B2 publication Critical patent/JPH0245133B2/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
    • G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
    • G01V1/18—Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
    • G01V1/181—Geophones
    • 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)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Geophysics And Detection Of Objects (AREA)
JP59088902A 1984-05-01 1984-05-01 地震感知器 Granted JPS60231120A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP59088902A JPS60231120A (ja) 1984-05-01 1984-05-01 地震感知器
GB08510935A GB2160319B (en) 1984-05-01 1985-04-30 Detecting of seismic waves by sensing the movement of a liquid surface
US06/729,117 US4662225A (en) 1984-05-01 1985-04-30 Seismic detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59088902A JPS60231120A (ja) 1984-05-01 1984-05-01 地震感知器

Publications (2)

Publication Number Publication Date
JPS60231120A JPS60231120A (ja) 1985-11-16
JPH0245133B2 true JPH0245133B2 (enrdf_load_stackoverflow) 1990-10-08

Family

ID=13955880

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59088902A Granted JPS60231120A (ja) 1984-05-01 1984-05-01 地震感知器

Country Status (1)

Country Link
JP (1) JPS60231120A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61147117A (ja) * 1984-12-20 1986-07-04 Fujitec Co Ltd 感度補正付地震感知器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4214485A (en) * 1978-06-07 1980-07-29 Paul J. Berger Electro-mechanical transducer

Also Published As

Publication number Publication date
JPS60231120A (ja) 1985-11-16

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees