JPS6428580A - Seismic observer - Google Patents
Seismic observerInfo
- Publication number
- JPS6428580A JPS6428580A JP62183493A JP18349387A JPS6428580A JP S6428580 A JPS6428580 A JP S6428580A JP 62183493 A JP62183493 A JP 62183493A JP 18349387 A JP18349387 A JP 18349387A JP S6428580 A JPS6428580 A JP S6428580A
- Authority
- JP
- Japan
- Prior art keywords
- value
- seismic
- max
- acceleration
- card
- 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
Links
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
PURPOSE:To enable quick indication of acceleration or seismic intensity of an earth quake, by detecting the max. value of a seismic signal recorded continuously to hold a detection value while it is displayed digitally. CONSTITUTION:Vibration of an earth quake generated is converted with a seismometer 1 into an electrical signal, which is converted with an A/D converter 2 into a digital value to be inputted into an IC card 3. Then, a seismic wave signal is recorded sequentially into a waveform recording circuit 4 of the card 3. On the other hand, the max. value of the electrical signal thus converted into the digital value with the converter 2 is detected with a max. detecting/holding circuit 5 of the card 3 and translated to acceleration or seismic intensity, a value of which is shown digitally on a display device 6. This enables quick indication of acceleration or seismic intensity of the earth quake at the generation moment thereof.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62183493A JPS6428580A (en) | 1987-07-24 | 1987-07-24 | Seismic observer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62183493A JPS6428580A (en) | 1987-07-24 | 1987-07-24 | Seismic observer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6428580A true JPS6428580A (en) | 1989-01-31 |
Family
ID=16136783
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62183493A Pending JPS6428580A (en) | 1987-07-24 | 1987-07-24 | Seismic observer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6428580A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04297889A (en) * | 1991-03-27 | 1992-10-21 | Oki Electric Ind Co Ltd | Controlling device for recording of seismic waveform |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60177287A (en) * | 1984-02-23 | 1985-09-11 | Fujitsu Ltd | Collecting device for earthquake data |
JPS61234382A (en) * | 1985-04-10 | 1986-10-18 | Tokyo Sokushin:Kk | Seismic recorder |
-
1987
- 1987-07-24 JP JP62183493A patent/JPS6428580A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60177287A (en) * | 1984-02-23 | 1985-09-11 | Fujitsu Ltd | Collecting device for earthquake data |
JPS61234382A (en) * | 1985-04-10 | 1986-10-18 | Tokyo Sokushin:Kk | Seismic recorder |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04297889A (en) * | 1991-03-27 | 1992-10-21 | Oki Electric Ind Co Ltd | Controlling device for recording of seismic waveform |
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