Line sensors with large measuring range

• Efficient implementation of the measuring task
  • One sensor to suffice for obbect detection throughout the entire conveyor width
  • The position/width is output as an analog value with high accuracy in proportion to the overall measuring field
  • Capable of detecting transparent objects and foils
  • Thanks to its compact size, the sensor can be integrated in almost any machine design
• High capacity enables improved processes
  • Extremely large measuring field up to 875 mm in width
  • High resolution up to 0.03 with a measuring frequency of > 500 Hz
• Minimized operation effort
  • Convenient one-button configuration of the three different measuring modes (width, edge, center)
  • Measuring field size can be narrowed down in a simple teach-in operation to suppress disruptive objects/areas
  • Rugged metal housing for durable use in harsh industrial environments

In sensors with an extra wide measuring field (also called line sensors), the light of the integrated illumination is reflected by an opposite reflection foil and is received by the diode array. The length of the diode array together with the optics determines the measuring field size. If an object shadows a part of the light, no light will fall on the corresponding part of the diode array. The integrated micro-controller analyzes the dark areas and the dark-bright transitions and calculates the corresponding analog value depending on the measuring mode. Line sensors have an opening radiation field which enables larger measuring distance and a wider measuring field. The specified measuring field size is reached at the nominal distance (measuring distance from the object). Increasing or decreasing in proportion to the distance, the object appears to be larger or smaller.