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声频电场探测器不但能无损测量固体绝缘材料和液体绝缘材料的电场,而且能测量这些绝缘材料的空间电荷分布情况。采用这种新的声频技术测量聚合物绝缘材料的电场,可以测到几十厘米的深度。而普通的声频技术只能测到几毫米的深度。新型探测器(如图所示)使用一个声脉冲发生器。
The acoustic electric field detector can not only measure the electric field of solid insulating materials and liquid insulating materials, but also measure the space charge distribution of these insulating materials. Using this new acoustic technology to measure the electric field of a polymer insulation, a depth of tens of centimeters can be measured. Ordinary audio technology can only measure a few millimeters depth. The new detector (shown) uses an acoustic pulse generator.