title: A Low-Cost Energy-Efficient Cableless Geophone Unit for Passive Surface Wave Surveys.
abstract: The passive surface wave survey is a practical, non-invasive seismic exploration method that has increasingly been used in geotechnical engineering. However, in situ deployment of traditional wired geophones is labor intensive for a dense sensor array. Alternatively, stand-alone seismometers can be used, but they are bulky, heavy, and expensive because they are usually designed for long-term monitoring. To better facilitate field applications of the passive surface wave survey, a low-cost energy-efficient geophone system was developed in this study. The hardware design is presented in this paper. To validate the system's functionality, both laboratory and field experiments were conducted. The unique feature of this newly-developed cableless geophone system allows for rapid field applications of the passive surface wave survey with dense array measurements.
authors.affiliation: State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, 1239 Siping Rd., Shanghai 200092, China. kdai@tongji.edu.cn.|State Key Laboratory for GeoMechanics and Deep Underground Engineering, Xuzhou 221008, China. kdai@tongji.edu.cn.
authors.forename: Kaoshan
authors.initials: K
authors.lastname: Dai
authors.affiliation: State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, 1239 Siping Rd., Shanghai 200092, China. lixiaofeng168@yeah.net.
authors.forename: Xiaofeng
authors.initials: X
authors.lastname: Li
authors.affiliation: State Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China. luchuan09@126.com.
authors.forename: Chuan
authors.initials: C
authors.lastname: Lu
authors.affiliation: State Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China. qyyou0880@mail.iggcas.ac.cn.
authors.forename: Qingyu
authors.initials: Q
authors.lastname: You
authors.affiliation: University of North Texas, 3940 N. Elm Street F115M, Denton, TX 76207, USA. zhenhua.huang@unt.edu.
authors.forename: Zhenhua
authors.initials: Z
authors.lastname: Huang
authors.affiliation: University of North Texas, 3940 N. Elm Street F115M, Denton, TX 76207, USA. felix.wu@unt.edu.
authors.forename: H Felix
authors.initials: HF
authors.lastname: Wu
keywords: cableless geophone; energy consumption; low cost; surface wave; validation test