Response of Seismic Motion Transducers to Nonharmonic Input

The response of a seismic motion transducer to a nonharmonic input is studied by analog simulation. Criteria are found for the measurement of triangular, square-wave, and single-pulse inputs. It is shown that a slightly damped system yields better transient response than one with the commonly used damping ratio (0.6-0.7). Recommendations are given for transducers with optional frequency and transient response.