The detecting electrodes of capacitance sensor are designed to improve the detection sensitivity.As the sum of the two electrodes area is a constant and they approach the target in equidistance motion

the two electrodes should be designed equally in area so that the largest capacitance change value can be achieved.The electrodes structure with isolator is also designed.Experiments prove

when the width of the isolator is greater than double of the detector

this detector structure can improve the detection sensitivity of capacitance sensor greatly

therefore the detection distance of capacitance fuze can be heightened largely.