ParCon light band sensor

Distance-independent measurement of edge position and object width even on round and fast moving objects.

Thanks to their parallel measuring field, their high accuracy and measuring frequency, PosCon light band sensors are the perfect solution for the measuring of edge position and object width up to 24 mm. Although smaller than a deck of playing cards, the sensors contain not only the complete signal conditioning, but also a long-life illumination unit. 

  • Portfolio
    • ParCon

        • Homogeneous, parallel, uniform light beam
        • Measuring edge positions and object widths
        • Version for detection of (falling) small parts
    • ParCon for long distances

        • Measuring edge positions and object widths
        • Measuring distances up to 200 mm
        • High measurement frequency for detection of fast processes
    Applications
    • Edge detection
      • Control of textile, plastic or paper edges
      • Positioning of objects by the edge
      • Level measurement

      Width measurement
      • Width inspection during the production of fabric and rubber bands

      Counting and detecting objects, switching output
      • Detection and counting of small objects falling through the measurement area
      • Wire and belt break monitoring
    Advantages

    ParCon edge sensors are used to detect object widths and object positions. The position / width is issued as an analog value with high accuracy proportional to the overall measuring area. Although smaller than a deck of playing cards, the sensors contain not only the complete signal conditioning, but also a long-life illumination unit. The simple switching version of the ParCon also allows the detection of small objects within the measuring area.

      • The two measuring modes (edge, width, center) can be set by a push of a button.
      • Due to the parallel light beams, the vertical movement of fabric webs does not affect the measurement signal.
      • The high measuring frequency of 1000 Hz in the analog sensor also allows rapid movements to be detected.
      • Due to the high measuring frequency of 4 kHz, even small, rapidly moving parts are reliably detected.
    Operating

    With the ParCon line sensor, the light of the integrated illumination is reflected by a reflective film (special film) installed opposite the sensor and is received by the diode line. The length of the diode line and the optics determine the measuring area.

    Due to the narrow diode line, the measuring area is also only a narrow band. If an object obstructs a part of the light, no light falls on the corresponding part of the diode line. The integrated microcontroller processes the shaded areas and the transitions from dark to light and calculates the corresponding analog value according to the measuring mode. The ParCon has a parallel measuring field, making an object appear equal in size in the entire measuring area.

    Mounting

    The reflective tape for the ParCon is covered by a protective film. If highly reflective objects are measured, it is conceivable that a direct reflection will occur just as strong as the light from the reflective film. In this case, measuring errors can occur. This can be prevented by tilting the sensor away from the object.