Sensor arrangement for determining the orientation of a pile

The arrangement has a pile guide (2) whose upper section is driven on a top part of a pile. A shock medium (4) is placed above the pile and partial sections (8) of the pile guide along a radial direction. Three optical distance range finders (6) are arranged in the pile guide. Vertical spacings are formed between the distance range finders and an underside of the shock medium. Three different measuring points of the shock medium are measured in the arrangement. The range finders are arranged in the pile guide at angular intervals about 90 degrees and provided with a light source. The light source is designed as a semiconductor laser.