It will show the feasibility of a Wireless Sensor Network (WSN) devoted to monitoring water basin, river, lake, and sea both on the surface and in depth. The swarm of floating probes can be programmed to periodically ...It will show the feasibility of a Wireless Sensor Network (WSN) devoted to monitoring water basin, river, lake, and sea both on the surface and in depth. The swarm of floating probes can be programmed to periodically sink some tens of meters below the surface, collecting data, characterizing water properties and then coming to the surface again. The life span of the probes may be assured by an on-board power supply or through batteries recharged by solar cells. The basic idea of the WSN is reported together with a detailed analysis of the operational constraints, the energy requirements, and the electronic and mechanical discussion.展开更多
为了能够准确地判断真空灭弧室的在线工作状态,本文基于屏蔽罩电位法原理研制了一种高精度耦合电容传感探头来采集灭弧室屏蔽罩上的交流电位信号;搭建了一套真空标定系统,获得了传感探头输出电压与真空度压强之间对应关系的拟合公式;基...为了能够准确地判断真空灭弧室的在线工作状态,本文基于屏蔽罩电位法原理研制了一种高精度耦合电容传感探头来采集灭弧室屏蔽罩上的交流电位信号;搭建了一套真空标定系统,获得了传感探头输出电压与真空度压强之间对应关系的拟合公式;基于所获得的拟合公式,设计了一套基于DSP F2812和STM32为微处理器的真空度在线检测系统。系统采用无线通信模块nRF24L01传输数据,解决了高电压复杂磁场下的数据传输等问题。试验结果表明,在6 k V高压环境下,该系统能够完成在10-2Pa真空度压强范围内的测量,其精度能够满足大部分的工程实际应用。展开更多
文摘It will show the feasibility of a Wireless Sensor Network (WSN) devoted to monitoring water basin, river, lake, and sea both on the surface and in depth. The swarm of floating probes can be programmed to periodically sink some tens of meters below the surface, collecting data, characterizing water properties and then coming to the surface again. The life span of the probes may be assured by an on-board power supply or through batteries recharged by solar cells. The basic idea of the WSN is reported together with a detailed analysis of the operational constraints, the energy requirements, and the electronic and mechanical discussion.
文摘为了能够准确地判断真空灭弧室的在线工作状态,本文基于屏蔽罩电位法原理研制了一种高精度耦合电容传感探头来采集灭弧室屏蔽罩上的交流电位信号;搭建了一套真空标定系统,获得了传感探头输出电压与真空度压强之间对应关系的拟合公式;基于所获得的拟合公式,设计了一套基于DSP F2812和STM32为微处理器的真空度在线检测系统。系统采用无线通信模块nRF24L01传输数据,解决了高电压复杂磁场下的数据传输等问题。试验结果表明,在6 k V高压环境下,该系统能够完成在10-2Pa真空度压强范围内的测量,其精度能够满足大部分的工程实际应用。
