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Simple Responses

Seismic sensor (either seismometers or accelerometers) transfer function can be described in a variety of ways. Many modern sensors have a "flat response" in a certain frequency band, meaning that the number of counts measured can be directly converted to ground movement by dividing by a simple factor, called the gain. The simple response gives this gain, as well as the corner period and damping. From these three values, the a simplified version of the transfer function can be also be calculated as poles and zeros or in other representations.

List of Simple Response Tables, By 2-Letter Network Code