JPS5719687A - Mass wave receiver - Google Patents

Mass wave receiver

Info

Publication number
JPS5719687A
JPS5719687A JP9434180A JP9434180A JPS5719687A JP S5719687 A JPS5719687 A JP S5719687A JP 9434180 A JP9434180 A JP 9434180A JP 9434180 A JP9434180 A JP 9434180A JP S5719687 A JPS5719687 A JP S5719687A
Authority
JP
Japan
Prior art keywords
coil
current
mass wave
semiconductor element
rectified
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.)
Pending
Application number
JP9434180A
Other languages
Japanese (ja)
Inventor
Masao Ohashi
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 JP9434180A priority Critical patent/JPS5719687A/en
Publication of JPS5719687A publication Critical patent/JPS5719687A/en
Pending 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)
  • Geophysics And Detection Of Objects (AREA)

Abstract

PURPOSE:To forecast effectively the occurrence of earthquakes by means of using a noninduction coil or a semiconductor element to transfer the mass wave into electric current. CONSTITUTION:A cross-type nonconduction coil B receives the mass wave, and an alternating current picked-up therefrom is applied to an LPF22 having a choke coil 20 and a capacitor 21 so as to remove the high-frequency wave. The alternating current is rectified by a bridge rectifier circuit 23, and the rectified current is supplied as a pulse current to a high speed recorder E to be recorded therein. A semiconductor element C may be used in place of the coil B' to obtain the similar resultant records.
JP9434180A 1980-07-09 1980-07-09 Mass wave receiver Pending JPS5719687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9434180A JPS5719687A (en) 1980-07-09 1980-07-09 Mass wave receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9434180A JPS5719687A (en) 1980-07-09 1980-07-09 Mass wave receiver

Publications (1)

Publication Number Publication Date
JPS5719687A true JPS5719687A (en) 1982-02-01

Family

ID=14107582

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9434180A Pending JPS5719687A (en) 1980-07-09 1980-07-09 Mass wave receiver

Country Status (1)

Country Link
JP (1) JPS5719687A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007142984A (en) * 2005-11-21 2007-06-07 Pioneer Electronic Corp Mounting bracket and speaker unit
JP2009017102A (en) * 2007-07-03 2009-01-22 Sekisui House Ltd Ceiling attachment structure for speaker, and speaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007142984A (en) * 2005-11-21 2007-06-07 Pioneer Electronic Corp Mounting bracket and speaker unit
JP2009017102A (en) * 2007-07-03 2009-01-22 Sekisui House Ltd Ceiling attachment structure for speaker, and speaker

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