TY - GEN
T1 - A Linear Seismometer Using Octagonal Microwave Sensor Based on Inverted Pendulum Structure for Earthquake Detection
AU - Wang, De Fang
AU - Yang, Chin Lung
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - In this article, a novel method for measuring acceleration is developed by integrating microwave displacement sensor and inverted pendulum structure for earthquake detection. The resonance frequency of the structure is designed to be operated as an accelerometer suitable for seismic sensing. Furthermore, an octagonal split ring resonator (SRR) operated at a fixed frequency with enhanced linearity and dynamic range is proposed as the displacement sensor. When vibrations are applied to the structure, acceleration can be detected by displacement of the pendulum, and the relative motion of the pendulum can be sensed due to the variation in the transmission coefficient at resonance. The experimental results demonstrate a consistent linear relationship between the sensor voltage and the input accelerations under three different frequencies, and the proposed device is proved to be suitable for earthquake detection with vibration frequencies up to 20 Hz and vibration accelerations from 60 cm/s2 to 500 cm/s2.
AB - In this article, a novel method for measuring acceleration is developed by integrating microwave displacement sensor and inverted pendulum structure for earthquake detection. The resonance frequency of the structure is designed to be operated as an accelerometer suitable for seismic sensing. Furthermore, an octagonal split ring resonator (SRR) operated at a fixed frequency with enhanced linearity and dynamic range is proposed as the displacement sensor. When vibrations are applied to the structure, acceleration can be detected by displacement of the pendulum, and the relative motion of the pendulum can be sensed due to the variation in the transmission coefficient at resonance. The experimental results demonstrate a consistent linear relationship between the sensor voltage and the input accelerations under three different frequencies, and the proposed device is proved to be suitable for earthquake detection with vibration frequencies up to 20 Hz and vibration accelerations from 60 cm/s2 to 500 cm/s2.
UR - https://www.scopus.com/pages/publications/85168542387
UR - https://www.scopus.com/pages/publications/85168542387#tab=citedBy
U2 - 10.1109/IMS37964.2023.10187982
DO - 10.1109/IMS37964.2023.10187982
M3 - Conference contribution
AN - SCOPUS:85168542387
T3 - IEEE MTT-S International Microwave Symposium Digest
SP - 971
EP - 974
BT - 2023 IEEE/MTT-S International Microwave Symposium, IMS 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE/MTT-S International Microwave Symposium, IMS 2023
Y2 - 11 June 2023 through 16 June 2023
ER -