An Electronic Vertical Long-Period Seismometer
- 1 March 1964
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Instrumentation and Measurement
- Vol. IM-13 (1) , 2-7
- https://doi.org/10.1109/tim.1964.4313361
Abstract
An experimental device has been developed which exhibits the characteristics of a vertical seismometer with a long natural period, the experimental device having demonstrated periods to 20 seconds. The device achieves long-period seismometer action through magnetic field support of the mass and electronic feedback. With suitable device parameters the performance equations will be of the same form as those of a conventional inertial seismometer, the natural period and damping being functions of an amplifier gain. There are other possible uses of the device principles, one being the construction of a stable table.Keywords
This publication has 1 reference indexed in Scilit:
- Inertial Seismograph Design-Limitations in Principle and Practice (Or How Not to Build a Sensitive Seismograph)Proceedings of the IRE, 1962