Updated pictures of our AS-1 seismograph and seismic records.
|
|
|
|
|
|
|
|
AS-1 Instrument |
|
Our AS-1 instrument. This is in the basement of the SRCC building at the present time. |
|
|
|
|
|
|
|
|
|
|
Sensor |
|
Relative motion of a permanent magnet and a coil of electrical conductive wire induces an electrical current. This is amplified to yield a seismograph. |
|
|
|
|
|
|
|
|
|
|
|
Sensor and pick-up coil |
|
Another image of the vertical motion detection magnet and pick-up coil |
|
|
|
|
|
|
|
|
|
|
AS-1 |
|
The entire sensor is surrounded by a plastic case to eliminate air motion, which would decrease the sensitivity of our instrument. |
|
|
|
|
|
|
|
|
|
|
|
|
Computer heliograph |
|
We use the excellent software of Dr. Alan Jones of SUNY to record our AS-1 records in heliograph format. |
|
|
|
|
|
|
|
|
|
|
|
Heliogram of normal recording |
|
November 21, 2005 showing normal signal/noise. We are presently running our seismic station at one half the sensitivity because of room noise. It is located in the sub-basement of a laboratory. |
|
|
|
|
|
|
|
|
|
|
Storm wave generated seismic noise |
|
This recording shows the results of storm wave on our seismic recording for November 22, 2005. Ground motion produced by water wave impacts along the east coast significantly increase the noise in our seismic record. Compare this record with that shown for November 21, 2005. We are running at one half the sensitivity of the instrument because of room noise. |
|
|
|
|
|
|
