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Pulse Ranging Technology (PRT)

Highly Accurate Positioning Over Large Distances

Capitalize on the excellent features of distance-based photoelectric sensors for your application, and gain that crucial competitive advantage in the market!

What Is PRT?

Pulse Ranging Technology (PRT) is currently the most precise industry-grade process for measuring distance. With this direct method of measurement, distances ranging from a few centimeters to several hundred meters are recorded to pinpoint accuracy.
Distance sensors equipped with Pulse Ranging Technology enable reliable and extremely precise measurements to be taken with great repeat accuracy and short response times—regardless of the ambient conditions and properties of the object.
What's more, the PRT sensors are extremely versatile. From distance sensors to high-end measurement technology, a host of different requirements can be met using the same method of measurement. PRT—technology that is setting new standards.

Pulse Ranging Technology

The Function Principle

With this method of measurement, a powerful light source emits short, high-energy pulses, which are reflected by the object and then recaptured by a light-sensitive receiver.

During this process, the emission and reception times are detected with a high degree of precision. From the values determined, the distance to the object is calculated using the runtime of the light pulses. If the object is close, the light propagation time is short. If the object is further away, the light propagation time is longer.


The Benefits of PRT Sensors

PRT Offers High Levels of Precision in Applications Ranging From a Few Millimeters to Several Hundred MetersSuccess at the speed of light—the superiority of this technology lies in the power density of the light pulses, which is 1000 times greater than in sensors with constant light sources. The benefits that this technology delivers include large measurement ranges, high detection ranges, and absolute levels of precision. Negative influences such as ambient light or different reflection characteristics cannot impact the function of PRT sensors. This makes PRT the technology for high-quality results.



Accuracy

  • Direct method of measurement delivering precise, reliable, and clear measurements
  • Greater accuracy over longer distances
  • No offset of the measured value during prolonged operation
  • Clear measurement result, even when several targets are present in the detection range


Immunity

  • High degree of immunity to ambient light
  • No mutual interference
  • Minimal susceptibility to changes in the measurement path caused by environmental influences
  • Reliable suppression of interfering influences such as dust or mist
  • Reliable blanking of objects in the distant background


Insensitivity

  • Little influence on the properties of the object, practically no black-white difference
  • Reliable operation, even in applications in the frozen storage sector at temperatures to -30 °C
  • Fully capable of detecting multiple targets, can be used in safety-critical applications



Sensors Offering PRT

R2000 photoelectric sensor with PRT, 2-D LiDAR Sensor
2-D LiDAR Sensor

R2000 2-D Laser Scanner

The 2-D laser scanners (2-D LiDAR sensors) of the R2000 series offer complete all-round visibility in fast-moving applications. The switching and measurement-taking versions open up a whole host of application options in business sectors such as logistics, transportation, and material handling. These scanners can also be put to use in innovative applications, such as monitoring functions in building automation and transport systems.

- High measuring frequency

- Precise light spot

- Visible measurement beam

- Integrated 360° display

- Measuring range of 0.2 m to 50 m with an accuracy of 12 mm

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R2300 photoelectric sensor
2-D and 3-D LiDAR Sensors

R2300 Single-Layer and Multilayer Scanners

With their high angular resolution, the LiDAR sensors of the R2300 series detect even the smallest object structures and contours with absolute reliability. While the multilayer scanner is ideal for 3-D measurements, the single-layer scanner is designed for high-speed applications.

- Mulitlayer scanner with four scan planes

- Single-layer scanner with a scan rate of 100 Hz

- High angular resolution of 0.1°

- Switchable, visible pilot laser

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R2100 photoelectric sensor
2-D LiDAR Sensor

R2100 Multiray LED Scanner

The R2100 Multiray LED scanner (2-D LiDAR sensor) provides a two-dimensional surface measurement due to multiple LED emitters arranged next to each other. Eleven light spots ensure reliable detection of any surface, regardless of shape or structure. This makes the R2100 the best solution for challenging indoor and outdoor applications in mobile equipment, intralogistics and machine and plant engineering.

- Two-dimensional measurement with no moving parts

- Multiple, wide-beam emitters ensure reliable object detection regardless of surface structure

- Measurement using eye-safe LED technology

- 88° scanning angle

- Measuring range of 0.2 m to 8 m

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R1000 photoelectric sensor with PRT

R1000 Distance Sensor

The R1000 provides maximum precision for positioning tasks—with an accuracy of < 1 mm over a measuring range of up to 150 m. Due to its compact housing, the distance sensor can be integrated into particularly small machines or lifting applications.

- Accuracy of < 1 mm

- Range up to 150 m

- Compact sensor in a robust metal frame

- Optional adjustment device for precise fine alignment

- Laser class 1 for eye-safe use

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R200 photoelectric sensor with PRT

R200 Distance Sensor

Large distances in small spaces: The R200 photoelectric distance sensor integrates Pulse Ranging Technology in a compact standard housing—for measurements up to 60 m away. This makes the sensor suitable for use in high-bay warehouses, on conveyor systems, or on monorail conveyors in automotive manufacturing.

- High-precision distance measurement up to 10 m

- Detection ranges up to 60 m with reflector

- Compact design of 15 x 41.7 x 50.6 mm

- Repeat accuracy of +/- 3 mm

- IO-Link interface with Smart Sensor Profile

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More Information

Multi Pixel Technology

Multi Pixel Technology

The Multipixel Technology (MPT) combines the proven triangulation principle with the measuring functionality of conventional distance sensors. As such, the MPT sensors bring state-of-the-art technology within reach of a wide group of users.

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