A new method to access information for underground omni-dimensional vibration vector

作者：Li Jian^*; Liu Ying; Han Yan; Chen Xianhui

来源：Sensor Review, 2015, 35(1): 125-132.

DOI：10.1108/SR-11-2013-750

• Finite element analysis
• Blasting vibration
• Distributed source location
• Vibration sensor

Purpose-The purpose of this paper is to propose a new method to achieve omni-directional vibration vector signal acquisition, and use this method to improve the accuracy of the underground explosion point localization.
Design/methodology/approach-Following an introduction, this paper describes the design principle of a sensor structure, and discusses the rationality of the spherical structure of the sensor through finite element analysis. The sensor prototype is designed according to the above method, and its performance is tested by the sensor calibration experiment. Finally, applications are also discussed.
Findings-This paper shows that the method for underground omni-directional vibration signal acquisition is reasonable and feasible. The vibration sensor, designed by this method, of which the triaxial dynamic characteristics are consistent, and the three-dimensional vibration information acquired by this sensor can achieve high-precision localization for an underground explosion point.
Originality/value-The paper describes a new method for omni-directional vibration vector signal acquisition. The vibration sensor is developed based on this method, which has a broad application prospect in the positioning of an underground explosion point, the evaluation of explosive power and other underground projects.

• 出版日期2015
• 单位中北大学