Capacitive system for liquid level measurement can measure the liquid level according to the principle which capacitance value is changed with the dielectricconstant.
电容式液位测量系统是基于改变介电常数时，电容器的电容量变化的原理来测量液位的。
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In the paper a new method using microstrip antenna was developed for the measurement of the dielectricconstant of a thin slab type material.