Leuze Sensor Automation Technology

Leuze is an international sensor expert for automation technology. With curiosity and determination, we – the Sensor People – have been forerunners for innovations and technological milestones in industrial automation for 60 years. The success of our customers is what drives us.

About the Leuze Sensor Automation Technology

The Leuze product range includes a number of different sensors for the field of automation technology. Among these are switching and measuring sensors, identification systems, and data transmission and image processing solutions. As Safety Experts, we are also focused on components, services, and solutions for safety at work.

Leuze is primarily targeting industries in which we have in-depth, specific application know-how and many years of experience. These include intralogistics and the packaging industry, machine tools, the automotive industry as well as laboratory automation.

Leuze was founded in Owen/Teck in Southern Germany – its headquarters. Today there are more than 1400 Sensor People around the world who are working with determination and passion for progress and transformation to make our customers successful in a constantly changing industry. Regardless of whether in the technological competence centers or in one of the 21 sales companies, supported by more than 40 international distributors.

The Product of Leuze Product

Switching sensors

Optical sensors use light in various forms to perform their detection tasks. An extensive product line is available with reliable and efficient sensor solutions for all applications that can be solved optically. Object detection for different surfaces, object sizes, and colors requires various function principles, such as a through-beam photoelectric sensor, a retro-reflective photoelectric sensor or a diffuse reflection sensor. All different operating principles are usually available in a given series (size). Universal series is also available with extended models and additional useful functions.

Inductive switches are the industrial standard for the contactless detection of metallic objects.
The Leuze product range includes a broad range of standard and special sensors which are available in many different designs and have been tried and tested millions of times by our customers.
In particular, our extremely robust, full stainless steel sensors, sensors with extended switching distance, and miniature sensors for extremely constrained installation spaces have proven themselves ideal for demanding applications many times over.

Capacitive sensors can detect solid, liquid, or granular objects. With these sensors highly structured and non-dimensionally stable objects e.g. the fill levels of liquids or bulk materials can also be detected in direct contact with the medium or through a non-metallic container wall. They are also suitable for completeness inspections. Capacitive sensors also function reliably in an extremely dusty or dirty environment. An array of different designs and large operating ranges enable the use in practically all areas of application in industrial automation.

Ultrasonic sensors are used whenever optical systems reach their limits. Hence, partially and fully transparent or extremely dark objects can be detected just as easily as objects with reflecting surfaces or objects in dusty, vaporous, or humid environments.

Fiber optic sensors are suitable for universal applications with low space requirements for object detection. Glass fiber optics are used in demanding environmental conditions with high temperatures and are resistant to chemicals. For radiation through foils or applications with high light power, they offer further advantages, especially low damping. The flexible fiber optics with various head shapes can be integrated into nearly any system design. The detection range is dependent on the fiber optics and amplifiers used. Fiber optics can be used with the through-beam principle or with a scanning function. As a fiber array with multiple light beams, they can be used to detect especially small objects.

Fork sensors combine transmitter and receiver into a single device and therefore feature high operational reliability. They are characterized by simple mounting without the need for alignment as well as high sensitivity. The fork sensors are used for detecting small parts or for detecting labels and print marks, even on transparent films.

Light curtains switching are perfect for monitoring large measurement fields. They react as soon as anything or anyone penetrates this field. Their fast configuration and simple handling save time and money compared to imaging processes. Thanks to different beam spacings and measurement field lengths, switching light curtains can be used to solve a range of application problems.

Light section sensors for object detection are designed to perform scanning, two-dimensional object detection along a laser line. They are especially well suited for completeness monitoring or product monitoring in the case of multiple-track transport. The short measurement time and the detection range from 200 to 800 mm enable an inspection of the content at a high throughput rate even with deep containers. The internal data processing offers programming and differentiation of 16 different object types, thereby conserving control capacity. Complex detection tasks can be solved with one sensor. The compact housing ensures high flexibility during installation and saves installation space.

Area scanners are designed to perform scanning and two-dimensional object detection along a laser line. They are especially well suited for completeness monitoring or product monitoring in the case of multiple-track transport. The short measurement time and the detection range from 200 to 800 mm enable an inspection of the content at a high throughput rate even with deep containers. The internal data processing offers programming and differentiation of 16 different object types, thereby conserving control capacity. Complex detection tasks can be solved with one sensor. The compact housing ensures high flexibility during installation and saves installation space.

Contrast sensors and compare contrasts very precisely through the use of different light sources such as white light, laser-generated red light or RGB light. The detected contrasts marks are then reported to the process with minimal signal jitter. Through the automatic selection of the right transmitter colors, various color or gray value combinations can be reliably detected. Bar graph indicators offer additional ease in making adjustments during manual setup.

Luminescence sensors detect both visible as well as invisible luminescent markings. They send the result as a switching output or analog value and are used primarily for sorting and inspection tasks in areas in which other detection methods fail to supply reliable results or where the markings should not or must not be visible. Luminescence sensors are available for various luminescence colors and feature operating ranges up to 200 mm and have a very compact metal construction. The sensitivity adjustment is performed via a potentiometer. Turnable M12 connector.

Color sensors detect colors by comparing the detected color value with a previously stored reference value. They are the right solution whenever the color of an object or marking can serve as a sorting or inspection criterion. Depending on the configuration and specified tolerance values of the system, the result is output as a switching signal.

Double sheet/splice inspection control sensors enable reliable differentiation between one or more layers of very thin objects made of different materials. This allows, for example, single-layer paper sheets to be reliably pulled in or individual electrodes to be stacked for the production of a battery cell. Different operating principles, based on ultrasonics and capacitive sensors, cover the range of materials for different applications. Sensors for splice inspection detect desired and random splices in paper webs independent of the surface color and material properties.

Measuring sensors

Optical distance sensors perform different measurement tasks in various applications with varying requirements with regard to accuracy, resolution, and size. To meet these diverse needs, the operating principles of triangulation, propagation time measurement, and phase measurement in different sensor sizes and specifications are covered by a wide range of optical distance sensors.

Sensors for positioning with moving system parts that need to automatically work together, the positioning of parts or workpieces with millimeter accuracy is of great importance. For this purpose, sensors with various operating principles are provided: laser distance measurement devices that measure against a reflector, bar code positioning systems whose red light laser determines position and speed relative to a bar code tape, sensors for optical guidance using edge detection as well as solutions for camera-based compartment fine positioning.

Ultrasonic distance sensors can reliably detect partially or fully transparent objects and perform precise distance measurements. In addition, measurements can be performed in dusty, hazy or humid environments. Versions are available either with plastic or metal housing.

Sensors for contour measurement: The CMS 700i 3D contour measurement system detects the length, width, height, deformations, and position of any objects as they pass by, independent of their shape and surface. Even polybags are reliably detected. The complete system includes all components for operation and installation under one part number. In contrast, light section sensors record a height profile along a projected laser line. This allows objects to be detected with high resolution in multiple dimensions. The integrated functions range from presence control to edge measurement and 3D object measurement.

Area scanners: These devices scan their environment using a quickly-rotating laser measurement beam. Objects can thereby be detected both directly in front of the device as well as at long distances and their contours measured. With an opening angle of 190° and a measurement distance of up to 65 m, the laser scanner can monitor an area of one hectare. Measurement data is output via a serial or Ethernet interface. The optional heating makes the scanner suitable for operation at temperatures as low as -20°C. As in the past, the scan speed of up to 50 Hz sets standards on the market.

Measuring light curtains: These devices are perfect for measuring moving objects as they pass by. The measurement results can be output via the fully integrated interface. At the same time, the programmable switching outputs allow downstream elements to be manipulated. Likewise, multiple light curtains can be cascaded. The nearly unlimited possibilities for configuring multiple measurement areas and evaluation functions make the devices problem solvers for a variety of measurement tasks. The range of available resolutions and measurement field lengths ensures optimum adaptation to your application.

Measuring fork sensors: With the sensors, an infrared light band illuminates a CCD line. A passing object can thereby be measured by its occlusion. The resolution of 14 µm and the high reproducibility enables the reliable measurement of very fine yarns and wires. The variety of implementable measurement functions enables the position detection of transparent edges, the determination of the thinnest or thickest wire, and much more. The vacuum resistance of the devices also enables use in carbon fiber production.

Safety

• Safety products
• Safety Services

Identification

• Stationary 1D bar code readers
• Stationary 1D / 2D code readers
• 1D/2D hand-held scanners
• RFID

Network and Connection Technology

• Cables and connectors
• Connection units
• Product-specific connection components

Optical data transmission

Data within a network is transferred in different ways. Optical data transmission photoelectric sensors use the “air” medium to transfer data invisibly, contact-free and free from wear over a distance of up to 300 m. This is a leading technology in plant engineering and combines efficiency with cost effectiveness.

Industrial image processing

• Vision sensor
• Smart camera
• Industrial IP camera
• Light section sensors

Accessories

• Mounting systems
• Reflectors and reflective tapes
• Deflecting mirrors/device columns
• Protective screens
• Fiber optics
• Bar code tapes
• Products for commissioning
• Optical and acoustic signalers
• Muting

Source: www.leuze.com

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