An energy supply unit for an autonomous remote sensor system monitoring stored nuclear waste

作者：Constantinou P^*; Aird C J; Mellor P H; Smith D J; Booker J D; Flewitt P E J; Truman E

来源：Sensors and Actuators A: Physical , 2011, 166(1): 52-65.

DOI：10.1016/j.sna.2010.12.005

• Mechanical battery
• Magnetic spring
• Wireless sensor node
• Nuclear waste monitoring
• Nuclear repository
• Phased decision making process

This paper proposes a system for monitoring nuclear waste stored in sealed underground repositories after a period of several decades. The focus of the work is on the selection and prototyping of a critical part of the system, the energy source. In order to select the energy source from a number of possible options, a trade-off study is implemented using a weighted decision matrix. From this trade-off study a system based on a magnetic spring to store energy is chosen, primarily due to its low number of parts and does not suffer from self-degrading effects. When required, some of this stored energy is converted to the electrical domain and supplied to a wireless sensor node in a conditioned form. A prototype of the concept is presented and the supply of energy to a wireless sensor node is demonstrated.

• 出版日期2011-3