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- From: jpc@ukc.ac.uk (J.P.Crossley)
- Newsgroups: sci.geo.geology
- Subject: Seismic Sensors...
- Message-ID: <1847@raven.ukc.ac.uk>
- Date: 20 Nov 92 10:39:57 GMT
- Sender: jpc@ukc.ac.uk
- Organization: Computing Lab, University of Kent at Canterbury, UK.
- Lines: 22
- Nntp-Posting-Host: raven.ukc.ac.uk
-
- Hi,
-
- I wonder if any people out there could help me with a problem.
- I have a final year electronics degree project to do which is a
- digital seismometer. However, I have had some difficulty in getting
- information on current type of sensors that are used and detail of their
- construction. Bearing in mind that I have to make the sensor, could any
- one give me useful hints on the type to construct (e.g. Horizontal or
- vertical?). From what I gather, a horizontal component sensor would be much
- easier to construct using the 'garden gate' type pendulum in order to achieve
- the required resonant frequency - which is quite low (approx. 1/5s - is this
- about right for my uses?)
-
- The seismometer simply has to detect the prescence of earthquakes
- at a distance (not to calculate their location). It should be sensitive to
- ground movements of approx. 100nm (is this hoping for too much?).
- Any help with the above would be greatly appreciated.
-
- Thanks in advance,
-
- Jonathan Crossley,
- (University of Kent, Canterbury, Kent, England)
-