视充电率和视极化率关系分析

ANALYSIS OF RELATIONS OF APPARENT CHARGING RATE AND CHARGEABILITY

本文从理论上推导了时间域两种常见的测量参数—视充电率和视极化率之间的相互关系,并进行了对比试验,获得了近似换算系数。

The paper discusses the relationship between the apparent charging rate and chargeability, two parameters of the time-domain induced polarization method.Having deduced a relative equation theoretically,the paper considers that the apparent charging rate is approximate to apparent chargeability of which one spot exists in the decay course of the secondary field, then multiplied by coefficient k,under the conditions of smallest value of potential difference and equal or similar charging time. This conclusion deduced by theoretical equation above have been examined perfectly in Nanjing to Zhenjing areas.By using available instruments and conditions,the measurements obtained indicate that the curve form of apparent charging rate is similar to measurement results of time-domain exciting electroder and there exists a identified relationship between the apparent charging rate and chargeability.