Flexible board wiring coil and LVDT linear displacement sensor

The invention discloses an LVDT linear displacement sensor with flexible board wiring. The LVDT linear displacement sensor comprises a coil arranged on a flexible board, sleeves are arranged inside and outside the coil; two ends of the sleeve are blocked by end covers; a plurality of spiral layers are laid on the flexible board; each spiral layer is provided with a plurality of spiral lines whichare not connected with one another; the flexible board is curled so that in the same spiral layer, the tail end of the previous spiral is connected with the head end of the next spiral, and among different spiral layers, the spiral at the tail end of the previous spiral layer is connected with the spiral line at the head end of the next spiral layer. The manufacturing process is simple, the lengthand the precision of the coil are not affected by the stroke and the precision of the winding machine, and the performance is more stable. 本发明公开了一种柔性板布线的LVDT直线位移传感器，包括柔性板布线的线圈，所述线圈内外均设置有套管，所述套管的两端以端盖封堵，柔性板铺设多层螺线层，每层所述螺线层均设置多根