Radar sensors

Reliable measurements in the most extreme environments

Smallest radar sensor with a very narrow beam cone and a measurement range up to 60 m
Quick measurement (ms) also of moving objects
Simple and precise adjustment to application requirements via the IO-Link interface
Stable measuring signal, even in adverse ambient conditions and with soiled sensor cap (IP68/ IP69K and proTect+)
Reliable at low temperatures down to -40 °C
Available and approved in Europe and the USA

Product portfolio

Radar sensors – Distance measurement to flat or round objects – Radar barrier for easiest object detection – Distance measurement through a cover

Radar sensors for distance measurement

Measuring distances from 0.2 up to 60 m
Continuous measurement signal plus discrete switching signal
Simple sensor teach-in using IO-Link, CAN or RS485
Ideal for flat or round objects

Open in product selector

Radar sensors with IO-Link

Easy and flexible parameterization
Clear visualization of measured values
Statistical and monitoring values included
Quick adjustment to application requirements through preset user profiles

Open in product selector

Off-Highway radar sensors

R600V

“Ground & crop” radar sensors with superior crop penetration and ground detection
Multi-object radar sensors allow individual application solutions
Tested according to the highest off-highway industry standards
Robust against environmental influences such as wind, temperature or humidity
Especially suited for agricultural machines, construction machines and mobile machines

Open in product selector

Your benefits

Stable and reliable measuring signal, even in adverse ambient conditions, strong ambient light, and soiling
- High repeatability and measurement accuracy across the entire measurement range with limited temperature drift
- Can be used outdoors and across a wide temperature range from -40 to 80 °C, even without additional protective housing
- The sensor withstands stress tests such as those according to IP68 / IP69K and the even more demanding Baumer proTect+ impermeability concept without any problems
Simple and precise adjustment to various application requirements
- Extended functionality via the IO-Link interface
- User-friendly user interface with visualization of measurement data
Simple and versatile installation
- Very compact design for confined installation spaces
Quick measurements and response to position changes
- Extremely short response times in the ms range
No distortion by obstructive objects in the near vicinity
- Focused, very narrow radar beam with a measurement range of up to 60 m

Applications

Radar technology is particularly suitable for outdoor and off-highway applications, e.g. in agriculture, on construction or in ports.

Vehicle positioning and measurement in carwash and parking systems
Position detection of crane bridges, crane trolleys, transfer trolleys
Collision monitoring for cranes or automatic systems
Detection and positioning of large moving objects (e.g. trains)
Measurement of ground or road surface clearance (e.g. blacktop)
Height control of sprayer linkage and combine harvester attachments
Fill level measurement in open or closed containers, also when pressurized

Carwash vehicle positioning and measurement

The radar sensor measures car position and size, allowing ideal brush positioning in drive-through and tunnel car-washes.
The sensor signal is unaffected by water spray and associated cleaning agents.

Height regulation of arms e.g. of cranes

The radar sensor measures the height of the arm relative to the ground or a corner cube.
The sensor signal is unaffected by adverse environmental conditions.

Ground distance measurement for asphalt pavers

Precise ground distance measurement
The measurement remains unaffected by the temperature of the air and the asphalt

Boom height control for sprayers

Measurement of ground and crop distance for height control
Simultaneous measurement of the ground and plant distance allows determination of crop heights
Quick response time

Height control of combine harvester attachment

Measurement of ground and plant distance for height control of the attachment
Simultaneous measurement of the ground and plant distance allows determination of crop heights
Quick response time

Ground distance measurement

Measurement of the ground distance allows a variety of applications
Penetration depth for tillage equipment or seeding machines
Sinking in of the tractor, slope recognition for anticipatory engine speed control

Technology

Distance measurement to flat or round objects

For flat objects it is very important that the tilt of the surface is not greater than half the opening angle. This is to ensure that radar beams reflected from the surface are reflected back into the sensor for proper detection. Round objects have the advantage that they are rotationally symmetric. This makes alignment much easier, as round objects always reflect something back to the sensor. Compared to a flat object with comparable size, the signal strength of the reflected beam is reduced.

Distance measurement through a cover

Radar beams can penetrate certain materials (such as plastic panes). The covers do not require full transparency to be penetrated by radar beams. For example it is possible to look through black plastic sheets. A small portion of the radar beam will be reflected back to the sensor from the cover. Through a special teach-in-algorithm the sensor learns the profile of the reflection. It subsequently measures objects behind the cover, as if the cover is none-existent.

Radar barrier for the most reliable object detection

The radar sensor is also available in a configuration, where it operates similar to a light barrier. Via a special teach-in-algorithm the sensor learns the reflector position. After teaching the sensor monitors the reflector position. If an object breaks the line of sight between the sensor and reflector, the sensor output switches. The advantage of this configuration is that it is unnecessary for the object to reflect a signal back to the sensor. Therefore even randomly-shaped objects or radar absorbing objects can be reliably detected.

Radar sensors based on Frequency Modulated Continuous Wave (FMCW) technology

Baumer radar sensors use FMCW technology
The distance and relative speed of an object can be measured
The use of high frequencies creates a compact design and a narrow beam profile

proTect+ impermeability concept

Sensors remain reliable and impermeable over their entire service life
Shock-tested over the entire temperature range to simulate aging effects
IP 69K protection against ingress of dust and high temperature, high pressure water