Apparatus for contactless distance and/or speed measurement

An apparatus for contactless distance, or travel and/or speed measurement of bodies (11, 15) moving substantially uniformly, having zones (10-910) of electrically conductive material which are displaced in synchronism with the moving body and are disposed at a uniform distance (b) from one another in the direction of movement, and having a spatially fixed measuring transducer (15-915) disposed at a distance therefrom, which has coil means (18-918) located thereon facing said zones, and having alternating current flowing therethrough,

• characterized in that
• the measuring transducer (15-915) extends spatially over a multiplicity of zones (10-910) and has individual, interconnected, active measuring faces (16-916) which are spatially demarcated;
• in that the distance between said measuring faces (16-916) viewed in the direction of movement of the zones (10-910) corresponds substantially to the distance (b) between adjacent zones and the width of said measuring face (16-916), viewed in the direction of movement of the zones (10-910), corresponds substantially to the width (c) of the zones (10-910);
• and in that the coil means comprises at least one conductor (18-918) positioned on the zones and the conductors on the respective zones are connected together to form a single circuit.