For logging instrument in use and promotion, the lack of system and the application of theoretical basis of indoor research means that it's difficult to form the commercial scale and restricts its development seriously. According to the operating principle of micro resistivity imaging, ultrasonic imaging, the model of the actual motion measurement and combining with the characteristics of the laboratory, we devised an analog measuring equipment for electroacoustic imaging detector, which had realized the movement of x, y, z and d four direction, devised various schemes for x,d. We used the principle of fuzzy evaluation to establish membership functions and weight for various schemes of x, d directions. Using the principle of fuzzy evaluation, we evaluated kinds of schemes of the d and x direction comprehensively, and established the membership function and weight. We established factors set and fuzzy comprehensive evaluation set through the expert scoring form and selected the optimal case, x as double linear motor transmission; d as bevel gear drive. The measurement device could provide further research of methods for imaging technology.