无线接入技术在电容式物位测量的应用

The Wireless Technology Used in Capacitance Tank Level Measurement

电容式物位测量中 ,物位值与测量电容有关。由于测量中若不加传输电缆 ,读数不方便 ,特别是在测量范围 1米以上的测量中 ,操作困难。若使用传输电缆 ,把测量值引到可方便读数的场所 ,电缆的分布电容对测量影响很大。使用无线接入技术可以克服电缆分布电容的影响 ,实现无缆传输 ,使测量准确可靠。

In the level measuring, the capacitance is related to the tank level. It is inconvenience to read the level without transmission line, especially in larger than 1 meter measurement range. But if the measurement data is transmitted with transmission line to the place where it can be read easily, the distributed capacitance of transmission line will influence the measuring precision. The wireless technology used in capacitance tank level measurement can avoid the influence of the distributed capacitance of transmission line to improve the measuring precision.