FAQ : Application Sensors

Which parameters determine the choice of a distance sensor?

Accuracy, measurement field, and spot size.

What is the accuracy of a distance sensor?

The accuracy is determined by:

  • resolution: the minimum target position change that can be detected and measured by the sensor
  • linearity: the maximum deviation from the analog output with respect to the ideal signal proportional to the distance
  • temperature drift: the influence of the sensor’s internal temperature on the measurement
  • What is the purpose of using a laser displacement sensor?

    It detects the precise positioning of an object. The MX1A/B series is used to add or subtract measured values; it calculates differences in thickness or compares the level of objects.

    Is the S80L-Y distance sensor sensitive to the color of the object to be detected?

    By using time of flight measurement technology, this reduces the effect of the color of the object.

    What is time of flight technology?

    This system, different from the previous triangulation technology, offers the possibility of having an equal accuracy over the entire measurement field, which can be very long. This system detects light thanks to a electromagnetic pulsing signal instead of a direct reflection of light. ; The light beam characteristics becomes secondary and using this method the time necessary for the emitted light to hit the target and come back is measured directly. (Applicable products: S80)

    What is light immunity of the S80L-Y distance sensor?

    10000 Lux, according to European Standards, which is typical for the outdoors on a very sunny day. In these conditions, protection for the sensor is necessary. A shadow has to be created in order to avoid the light hitting directly onto the lens.

    Last Updated: 2007/09/24


    What is the difference between SA1J and SA1K color sensors?

    The SA1J uses 3 LED source (RGB) and the SA1K uses Halogen source for detection. The advantage of the SA1J is the accuracy detection of color difference, with longer life on the LEDs. The advantage of the SA1K is to differentiate fine shades of the same color.

    For the SA1C, how should I select a fiber optic unit?

    It depends on your application. Some fiber optics have multiple beams for more accurate readings. The SA1C is perfect for areas with minimal clearance.

    Last Updated: 2002/08/10