Measuring device for radio frequency identification card-reading distance

The utility model discloses a measuring device for radio frequency identification card-reading distance. A reader-writer supporting plate (2) and a metal stand plate (4) are parallel with each other and vertically arranged on a base frame (1). The base frame (1) is provided with a horizontal lead screw (8). The metal stand plate (4) is provided with a slide nut (12). The horizontal lead screw (8) drives the metal stand plate (4) to linearly move in a reciprocating way. A reader-writer (3) is installed on one side, which orients towards the metal stand plate (4), of the reader-writer supporting plate (2). A soft magnetic shielding film (5) is installed on one side, which orients towards the reader-writer (3), of the metal stand plate (4). A tag card (6) is fixed on the soft magnetic shielding film (5). An infrared distance-measuring instrument (7) is used for measuring distance between the reader-writer supporting plate (2) and the metal stand plate (4). The maximum card-reading distance of a radio frequency identification system after installation of different soft magnetic shielding materials can be accurately measured so that anti-electromagnetic interference capability and the shielding effect of the soft magnetic shielding materials can be measured and represented.