【摘要】 采用仿真分析与试验研究相结合的方法,探索安装位置、变压器油和球形放油阀对超高频天线传感器驻波特性和检测能力的影响。分析表明,不同安装位置天线的谐振频率会有一定差异,但对检测到的信号幅值影响不大;变压器油使天线的谐振频率有所降低,改变了天线的驻波特性,但不影响天线的检测能力;将天线安装在球形放油阀入口处会严重影响单极子类天线的驻波特性,导致天线接收信号能力下降。更多还原

【Abstract】 Simulation technique and experimental analysis are used to study the following factors: detection position,mineral oil and sphere oil drain valve,which affect the voltage standing-ware radio(VSWR) and detection performance of antenna sensor.The results and analysis procedures show that the antenna sensor fixed different detection positions have different resonance frequency,but signal amplitudes vary weekly.Furthermore,mineral oil can reduce resonance frequency and change VSWR,but weekly affect detection performance of antenna sensor.It is also suggested that installed the antenna in the sphere oil drain valve entrance can heavily affect VSWR of monopole antenna and reduce detection performance,so some new technique should be used to handle the problem.更多还原