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Can Anyone explain me how can I calculate the sensitivity of a seismometer?
26 Oct 2017, 23:33 (This post was last modified: 7 Nov 2017 16:15 by michelle_salmon.)
Post: #1
Can Anyone explain me how can I calculate the sensitivity of a seismometer?
Hi !!

Hope you all are doing well,

I would like to know if a specific seismometer can measure 1 micron/sec velocity. I have a few specs from the datasheet but I'm not a seismologist and am trying to figure out how to relate the specs to one another.
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7 Nov 2017, 16:19 (This post was last modified: 7 Nov 2017 16:23 by michelle_salmon.)
Post: #2
RE: Can Anyone explain me how can I calculate the sensitivity of a seismometer?
Hi Krishna you should have a look at these two sites.
https://ds.iris.edu/message-center/thread/280/
https://www.passcal.nmt.edu/content/inst...splacement

It will be dependent on the frequency of the signal so unless it the signal is in the passband of the seismometer then it becomes a bit more complicated.

Michelle
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13 Nov 2017, 18:57
Post: #3
RE: Can Anyone explain me how can I calculate the sensitivity of a seismometer?
(7 Nov 2017 16:19)michelle_salmon Wrote:  Hi Krishna you should have a look at these two sites.
https://ds.iris.edu/message-center/thread/280/
https://www.passcal.nmt.edu/content/inst...splacement

It will be dependent on the frequency of the signal so unless it the signal is in the passband of the seismometer then it becomes a bit more complicated.

Michelle


Hi @michelle, thanks for your answer, the 1st URL is not working, the 2nd URL i have seen it has got the information i was looking for.

Thanks once again.
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16 Jan 2018, 17:52
Post: #4
RE: Can Anyone explain me how can I calculate the sensitivity of a seismometer?
The "Peak/Full" looks to be the dynamic range in physical units (i.e., volts) and the "Sensor dynamic range" is the same thing in normalized units (i.e., decibels above some background/reference value) at a specific frequency (there will be a complex transfer function describing the frequency response). I am guessing that the speeds involved here must be standardized, i.e., seismic waves at a given frequency propagate at a given speed (look up seismic wave dispersion relations).
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31 Jan 2018, 23:53
Post: #5
RE: Can Anyone explain me how can I calculate the sensitivity of a seismometer?
I would like to know if a specific seismometer can measure 1 micron/sec velocity. I have a few specs from the datasheet but I'm not a seismologist and am trying to figure out how to relate the specs to one another.
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28 Feb 2018, 15:14
Post: #6
RE: Can Anyone explain me how can I calculate the sensitivity of a seismometer?
(26 Oct 2017 23:33)krishna Wrote:  Hi !!

Hope you all are doing well,

I would like to know if a specific seismometer can measure 1 micron/sec velocity. I have a few specs from the datasheet but I'm not a seismologist and am trying to figure out how to relate the specs to one another.

Hi spec sheets are often hard to read I would suggest you let us know what sort of seismometer it is and then we might be able to help.
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