Device for determining the angular position of a guide vane for rotary compressor.

Device (35) for determining the angular position of a guide vane compressor (19) arranged in a compressor (5), rotatable about its longitudinal axis (23), assigned to a measuring surface (31) that rotates together with it, with a holding device (41) intended for fastening the device (35) in the compressor (5) and a unit of measurement and evaluation (38) comprising at least two distance sensors (37), respectively determine a distance (B, C) with respect to the measuring surface (31) rotatable out of the reference position, whereby the angular position of the measuring surface (31) can be determined in relation with its reference position, depending on both certain distances (B, C) for the measurement and evaluation unit (38).