Non-contact measurement with light

Kopfbild Messgroessen 960x280-en

Filter section:

  • Bulk solid silo
  • Cement storage
  • Coil lines, Inspection lines
  • Coil storage
  • Coiling machines
  • Container ports
  • Conveyor belt
  • Decapper
  • Engineering
  • Extruder
  • Filling plant
  • Final assembly
  • Finishing, Slitting line, Winder
  • Finishing, Slitting lines
  • Flying saw
  • Forge hammer
  • Gantry cranes
  • Hot objects
  • Laboratory
  • Packing
  • Ports, docking systems
  • Printing machine, banderoling machine, register control
  • Quality assurance
  • Railway, Transportation
  • Research and Development
  • Service, Commissioning, Research
  • Skin pass level, degree of stretching, mass flow
  • Slitting lines, edge trimming shears
  • Slitting shears
  • Steel billets
  • Tube inspection lines

Filter task:

  • Abrasion measurement
  • Coating inspection
  • Coating inspection of foam material
  • Collision avoidance
  • Color inspection
  • Color mark detection
  • Color measurement of salmon meat
  • Control of shears
  • Distance measurement
  • Egg yolk color classification
  • Fill level measurement
  • Length measurement
  • Measurement of impact energy
  • Mobile velocity and length measurement
  • PET preform inspection
  • Position detection
  • Positioning of containers in gantry cranes
  • Presence check
  • Print mark detection
  • Sandwich counter
  • Strip edge control, web width measurement, edge crack detection, hole detection
  • Velocity Measurement
  • Velocity measurement, Length measurement

Filter measured variable:

  • Acceleration (Lixus)
  • Acceleration (VLM)
  • Color
  • Degree of stretching and Skin pass level
  • Diameter (LDM)
  • Diameter (Lixus)
  • Distance (LDM)
  • Distance (Lixus)
  • Fill level (LDM)
  • Fill level (Lixus)
  • Impact energy (VLM)
  • Kinetic energy (Lixus)
  • Length (LDM)
  • Length (VLM)
  • Number (Lixus)
  • Position (CR)
  • Position (LDM)
  • Position (Lixus)
  • Position (VLM)
  • Position detection
  • Presence (CR)
  • Presence (LDM)
  • Presence (Lixus)
  • Quantity (CR)
  • Thickness (LDM)
  • Thickness (Lixus)
  • Velocity (Lixus)
  • Velocity (VLM)
  • Velocity 1 (LDM)
  • Velocity 2 (LDM)
  • Width (LDM)
  • Width (Lixus)



Task:
Abrasion measurement
Areas:
Research and Development
Measured Variables:
Color
Description:
In order to achieve a high lifetime, starter motors need to be constructed in such a way that the abrasion on the commutator contacts is at a minimum. In the development and optimization of the contact materials, abrasion is determined through coloring. CROMLAVIEW® color sensors display the coloring in colorimetric values, so that the abrasion can be quantitated.
Products: CR100, CR200, CR200E, CR200EI, CR200P, CR200PN, CR210, CR210E, CR210EI, CR210P, CR210PN, CR500

Task:
Coating inspection
Areas:
Quality assurance
Measured Variables:
Presence (CR)
Color
Description:
Primer is an adhesion agent that is applied in order to improve the adhesion properties of glue. The correct application of primer can even be checked in difficult constellations (black primer on black surfaces) in a reliable way. Before applying the glue it is checked if the primer had been applied at full length.
Products: CR200, CR200E, CR200EI, CR200P, CR200PN, CR210, CR210E, CR210EI, CR210P, CR210PN, CR500

Task:
Coating inspection
Areas:
Quality assurance
Measured Variables:
Color
Position (CR)
Description:
The application of clear varnish on the printing image of a tin gives it a special finish. Clear varnish and printing image, however, need to be one on top of the other. Offset can be detected with a color sensor in the dual-channel mode. One channel detects start and finish of the printing image, whereas the second channel records the clear varnish application at these transitions. In accordance with the time-wise synchronicity of the output results the offset can be adjusted.
Products: CR200, CR200E, CR200EI, CR200P, CR200PN, CR500

Task:
Coating inspection of foam material
Areas:
Conveyor belt
Measured Variables:
Color
Position detection
Description:
Foam material, which is to be coated on one side, is transported on a conveyor belt. Both, the foam and the coating material can attain different colors. In order to minimize the effort, not each color is to be taught in. The differential color sensor CR200 is used to teach in a zero-difference on both sides of the foam. Independently from the color, it is possible to recognize if both sides of the foam are the same or if one side is coated. With the FOR-C2.0-50 optics this works also with deviations in positioning of approx. 20mm.
Products: CR200, CR200E, CR200EI, CR200P, CR200PN

Task:
Collision avoidance
Areas:
Gantry cranes
Measured Variables:
Distance (LDM)
Description:
When operating gantry cranes, it is crucial to have information about the current position of the crane. In such cases, laser distance sensors are used with the support of reflectors. With a measuring uncertainty of ± 2mm and a rate of up to 50 measurements per second the devices are perfectly suited for reliable position measurement.
Products: LDM301A, LDM302A, LDM41A and LDM42A, LDM41E and LDM42E, LDM51 Lumos, OEM laser module RF41, OEM laser module RF51A

Task:
Color inspection
Areas:
Final assembly
Measured Variables:
Color
Description:
For different target markets taillight systems are equipped with glasses in different colors. Automatic color inspection checks the correct color of the taillight glasses. The color of the glass is inspected in the reflected light mode without having to open the case which would be necessary in the through beam mode.
Products: CR200, CR200E, CR200EI, CR200P, CR200PN, CR210, CR210E, CR210EI, CR210P, CR210PN, CR500

Task:
Color inspection
Areas:
Final assembly
Measured Variables:
Color
Description:
Before mounting belt buckle, belt and eyelet, the color of each piece needs to be inspected. In the automotive field the colors used are very close together. The CROMLAVIEW® color sensors, however, classify and detect them with the precision of the human eye.
Products: CR10, CR100, CR100-FO, CR200, CR200E, CR200EI, CR200P, CR200PN, CR210, CR210E, CR210EI, CR210P, CR210PN, CR500

Task:
Color inspection
Areas:
Quality assurance
Measured Variables:
Color
Description:
Accordance of enamel insets with wash basins in terms of color is required in the production of an enamel manufacture. Color inspection of the enamel insets is carried out at a manual workplace, and it puts high requirements on the color sensor and its capability to differentiate colors. On the one hand, the use of the color sensor relieves the eye, and on the other hand the complaint rate is virtually zero, as the coloring is assessed objectively.
Products: CR200, CR200E, CR200EI, CR200P, CR200PN, CR210, CR210E, CR210EI, CR210P, CR210PN, CR500

Task:
Color mark detection
Areas:
Tube inspection lines
Measured Variables:
Color
Description:
The recognition of color markings on tubes for the sorting out of faulty tubes with changing tube diameters is a task for the CROMLAVIEW® CR200 color sensor, as it can detect two measuring points simultaneously. After applying the color mark in the tube marking system, the tube moves through the system. Since the tube rotates it cannot be guaranteed that the color mark occupies a certain position. So a 360°-color-mark-detection is necessary, which can be achieved by six measuring points. When changing the diameter, all six measuring points are re-teached in parallel by a trigger pulse. Using a background target, the tube start and end can be detected.
Products: CR200, CR200EI, CR200P, CR200PN

Task:
Color measurement of salmon meat
Areas:
Conveyor belt
Measured Variables:
Color
Description:
Salmon meat actually has a white color. However, consumers do like the orange to reddish color named after him. The reason for this is the carotenoid Astaxanthin, which occurs naturally in the nutriment of salmon or in aquaculture is added to the nutriment. Price differences of up to $ 2 / kg can be achieved solely by color enhancement. For this reason, in salmon processing, the color is measured and documented with a CROMLAVIEW® color sensor. For color measurement, a suitable optics with a measuring distance of about 1 meter above the conveyor belt is attached. Due to the inclination of the optics, the gloss of the surface is largely excluded.
Products: CR210, CR210E, CR210EI, CR210P, CR210PN

Task:
Control of shears
Areas:
Finishing, Slitting line, Winder
Measured Variables:
Length (VLM)
Description:
In the finishing line of aluminium foil rolling mills there is a need for contact and slip-free as well as highly accurate length measurement without wear. The length of the coils to be measured is within a range of 10,000 m and 30,000 m. The foils are just 0.03 to 0.3 mm thick. The VLM is used for the control of winders, so that safety margins of 0.025% are sufficient.
Products: VLM500, VLM502

Task:
Control of shears
Areas:
Extruder
Measured Variables:
Velocity (VLM)
Length (VLM)
Description:
Ceramic material for the production of catalyser bodies is extruded at a velocity of between 0.5 m/min and 10 m/min. Cutting is done by a flying saw. The VLM measuring device provides the shear control with velocity and length values. Contact-free measurement eliminates damage to material (such as crushing the soft ceramics). The measurement is not affected by humidity or a water film on the surface of the material.
Products: VLM500, VLM502

Task:
Control of shears
Areas:
Slitting shears
Measured Variables:
Velocity (VLM)
Description:
The finishing process of steel strips by means of slitting shears is supported by the use of the VLM measuring device. The rotation velocity of the shear blades depends on the velocity of the strip. Precise detection of the steel strip velocity helps to optimize the velocity of the blades and to minimize their attrition. Contact-free measurement eliminates damage to material. Measuring accuracy of less than 0.1% can be achieved.
Products: VLM500, VLM502

Task:
Distance measurement
Areas:
Ports, docking systems
Measured Variables:
Distance (LDM)
Description:
Laser distance sensors of the type LDM302A are used in docking systems for vessels. They measure the distance from the edge of the quay to the incoming vessel and ensure that the navigator is informed about the current distance between the vessel and the landing pier at all times. The LDM302A uses invisible, eye-safe IR laser pulses to measure the distance to almost any natural surface in up to 300m distance. For the implementation in docking systems it is crucial that all kinds of hulks, whether they are rusty or freshly painted, can be detected reliably. This is ensured by the LDM302A. The LDM302A is also able to measure the current speed of the vessel along the laser beam based on the measured distance and its change.
Products: LDM301A, LDM302A, LDM51A-x Lumos

Task:
Egg yolk color classification
Areas:
Laboratory
Measured Variables:
Color
Description:
For three-quarters of all Germans, yolk color is the most important criterion for assessing egg quality. The yolk color depends on the amount and mixture of carotenoids in the feed of the laying hens. In the analysis, a 15-step color fan (Hoffmann La Roche) has prevailed, starting with a pale yellow, over a darker yellow to an orange tone. With the CROMLAVIEW® color sensors, an automated and error-free classification of the egg yolk color is possible. In binary mode, all 15 colors can be displayed with only four switching outputs.
Products: CR100, CR100-FO

Task:
Fill level measurement
Areas:
Bulk solid silo
Measured Variables:
Fill level (LDM)
Description:
Sand and other bulk solids are often stored in silos. The laser distance sensors of the type LDM41A are used there to monitor the fill level. Via the freely programmable analog output (4mA ... 20mA) they provide the superior control with distance information continuously. From the measured distance between the measuring device and the surface, the fill level and/or the volume can easily be calculated. The LDM41A measures reliably on almost any solid natural surface, such as sand, cement, plastic granulate, forage or wood pellets.
Products: LDM41A and LDM42A, LDM41E and LDM42E, LDM41P and LDM42P, LDM41PN and LDM42PN, LDM51 Lumos, LDM51A-x Lumos, LDS10A, OEM laser module RF41, OEM laser module RF51A, RF51M

Task:
Fill level measurement
Areas:
Cement storage
Measured Variables:
Fill level (LDM)
Description:
In huge storage depots cement is allocated from a train to several large storage boxes. Several laser distance measuring devices of the type LDM41P are deployed to provide the crane operator with precise information on the amount of cement each of the boxes can still take. The communication via PROFIBUS facilitates gathering distance information of several measuring devices easily in a central place. Efforts for wiring the measuring points are substantially reduced. Besides that, functional reliability of the complete plant is increased, as for example, defect wiring or the failure of a whole device is detected by the diagnosis and alarm function of the PROFIBUS.
Products: LDM301A, LDM302A, LDM41A and LDM42A, LDM41E and LDM42E, LDM41P and LDM42P, LDM41PN and LDM42PN, LDM51 Lumos, LDM51A-x Lumos, OEM laser module RF41, OEM laser module RF51A, RF51M

Task:
Length measurement
Areas:
Coil lines, Inspection lines
Measured Variables:
Length (VLM)
Description:
In the finishing line, cold rolled metal strips are made up in rings. For order processing and quality assurance the VLM device realizes highly accurate measurements in coil and inspection lines, which determine the length of the cut rings and records it by means of a ring length controller.
Products: VLM500, VLM502

Task:
Length measurement
Areas:
Quality assurance
Measured Variables:
Length (VLM)
Description:
Round profiles of stainless steel are cut into lengths of between 3000 and 6000 mm and afterwards measured, whereby the demanded accuracy is 0.1%. The contact-free operation of the VLM devices considerably eases the measurement of individual objects compared with tactile measuring procedures (e.g. wheels). Measurement on shiny surfaces does not cause any problems. Each measured length value is sent digitally to a PLC.
Products: VLM500, VLM502

Task:
Length measurement
Areas:
Coiling machines
Measured Variables:
Length (VLM)
Description:
During the production process paper is cut and rewound on different machines. Especially with carbon paper it is crucial that the individual layers of paper are of equal length. Regardless if the paper is coated or uncoated - the VLM can measure reliably and precisely on all surfaces.
Products: VLM500, VLM502

Task:
Length measurement
Areas:
Steel billets
Measured Variables:
Length (LDM)
Description:
Two laser distance measuring devices are used for length measurements of steel billets. The steel billets have a diameter of approx. 15 cm and can have a total length of between 10 m und 20 m. On the transport from the storage area to the furnace the billets are moved crossways between the two LDMs. This way the devices measure the distance to the abutting faces of the billets and send the results by PROFIBUS to a PLC, which then calculates the total length of the steel billet by using the previously known distance and the measured data. As the measurement is performed outdoors, the measuring devices have been integrated into additional protective cases. One of the two devices is to be installed directly before the entrance to the furnace. Due to the high temperatures in this area, the use of a water-cooled protective case was unavoidable.
Products: LDM41P and LDM42P, LDM41PN and LDM42PN, LDM51 Lumos, OEM laser module RF51A, RF51M

Task:
Length measurement
Areas:
Finishing, Slitting lines
Measured Variables:
Length (VLM)
Description:
When cutting wallpaper rolls to the required length for sale, accurate length measurement is important. The VLM devices detect the length of the strip of wallpaper optically and contact-free and control the slitting system. Due to the accurate measurement you can abstain from safety margins. The contact-free mode of operation reduces the maintenance effort considerably. Creeping measurement errors caused by, for example, abrasion of the measuring wheel cannot longer occur.
Products: VLM500

Task:
Measurement of impact energy
Areas:
Forge hammer
Measured Variables:
Impact energy (VLM)
Description:
With an acceleration of up to 20,000m/s² forge hammers are exposed to extremely high dynamic strain. This energy input impact on the work piece can be calculated from the velocity curve of the hammer. Two VLM measuring devices record the velocity values and directions for the upper and the lower die and the registered impact energy is calculated and recorded with special software.
Products: VLM500, VLM502

Task:
Mobile velocity and length measurement
Areas:
Service, Commissioning, Research
Measured Variables:
Velocity (VLM)
Length (VLM)
Description:
During the commissioning of production facilities or for error diagnosis it is often necessary to measure the velocity of material. Through the low weight of approximately 6 kg and its compact dimensions the VLM measuring device can be fixed on a customary tube tripod and is ready for use in a minimum of time. For mobile use a laptop computer can be used as an operating and display unit. The option of offline measurement facilitates recording of highly dynamic processes. The recorded measured value files are Excel-compatible.
Products:

Task:
PET preform inspection
Areas:
Filling plant
Measured Variables:
Color
Description:
In filling plants, preforms for PET bottles are checked for their color before conveyance. At the same time, the allocation of the correct color of the bottle and the matching beverage is assured, and color deviations (batch drifts) are detected. Process-reliable color detection is ensured by using the through beam principle by means of optical fibers.
Products: CR100, CR200, CR200E, CR200EI, CR200P, CR200PN, CR210, CR210E, CR210EI, CR210P, CR210PN

Task:
Position detection
Areas:
Coil storage
Measured Variables:
Position (LDM)
Description:
In steel rolling mills the produced coils are stored on a large area, partly one on top of the other. When loading transport vehicles, LDS30A laser distance sensors are used, among others, to determine if the coil that is moved by the crane is in the correct position. Their high measuring rate of up to 30 kHz allows for sufficiently precise position detection while the coils are moved still hanging on the crane. Even very fast movements can be detected in a reliable way.
Products: LDM301A, LDM302A, LDM41A and LDM42A, LDM41E and LDM42E, LDM41P and LDM42P, LDM41PN and LDM42PN, LDM51 Lumos, LDM51A-x Lumos, OEM laser module RF41, OEM laser module RF51A, RF51M

Task:
Position detection
Areas:
Engineering
Measured Variables:
Distance (LDM)
Position (LDM)
Description:
In the metal industry a lot of materials are processed in the form of flat straps. In the process metal straps are rolled up to coils. The coiling machines used for that need to be adjusted consistently, depending on the width and position of the strap. Distance measuring devices, such as the LDM41A are used for positioning the reels on the center of the strap. Due to their high precision and independence from the material surface properties, the coils or machine parts can be positioned accurate to the millimeter. In most cases, two laser distance measuring devices whose measured values are set against each other are deployed for this task in order to process different diameters or irregularly rolled coils. The capability to operate several devices on one bus line and to process the results in the control fast and in a central place make the LDM41P with an integrated PROFIBUS DP interface the perfect solution for positioning tasks in heavy machinery construction.
Products: LDM41A and LDM42A, LDM41E and LDM42E, LDM41P and LDM42P, LDM41PN and LDM42PN, OEM laser module RF41, RF51M

Task:
Positioning of containers in gantry cranes
Areas:
Container ports
Measured Variables:
Position (LDM)
Description:
When loading and unloading sea containers on vessels and transport vehicles it is necessary to know the exact position of the container in relation to the gantry crane. In this case, the laser distance sensor LDS30A measures the distance between crane runway and container. The eye-safe infrared laser makes it suitable for the use in applications where people can be present. Despite its low power consumption the laser is able to measure on almost any solid surface, whether it is rusty, dirty or wet.
Products: LDM301A, LDM302A, LDM51 Lumos, LDM51A-x Lumos, LDS30A, OEM laser module LDS30M, OEM laser module RF51A, RF51M

Task:
Presence check
Areas:
Filling plant
Measured Variables:
Presence (CR)
Position (CR)
Description:
The presence of etiquettes is detected with a color sensor. Besides that, the detection of etiquettes or particular color marks on the etiquettes can accomplish the coherent line-up of bottles.
Products: CR10, CR100, CR100-FO, CR50, CR50-FO

Task:
Presence check
Areas:
Decapper
Measured Variables:
Presence (CR)
Description:
The correct ejection of wafers in wafer baking systems is checked with a color sensor. Here, the color difference between the wafer and the baking tin is assessed. Fiber optic coupling helps uncoupling the sensor from thermal influences to the greatest extent. Due to the dual-channel mode two measured points can be monitored at the same time.
Products: CR200, CR200E, CR200EI, CR200P, CR200PN, CR210, CR210E, CR210EI, CR210P, CR210PN

Task:
Presence check
Areas:
Railway, Transportation
Measured Variables:
Presence (LDM)
Description:
Two laser distance sensors of the type LDS30A are used on a special measuring and inspection train. They are mounted onto the roof of the train and aligned vertically upwards. It is their task to measure the distance between the train and potential obstacles above it. This is done on inspection tours of the measuring train at velocities of up to 100km/h. The extremely high sampling rate of up to 30 kHz, which the LDS30A provides, ensures that the evaluation unit receives a distance value every 3 mm on the track.
Products: LDM51 Lumos, LDS10A, LDS30A, OEM laser module LDS30M, OEM laser module RF51A

Task:
Print mark detection
Areas:
Printing machine, banderoling machine, register control
Measured Variables:
Position (CR)
Description:
The CROMLAVIEW® color sensor facilitates the inspection of print marks even on weakly contrasting media. Other fields of application are register controls, banderoling machines, and cutting tools. One characteristic feature of the CR100-PM is the automatic detection of print marks and the re-adjustment of color tolerance thresholds in case of slowly changing colors.
Products: CR100, CR100-FO, CR100-PM, CR50, CR50-FO

Task:
Sandwich counter
Areas:
Packing
Measured Variables:
Quantity (CR)
Description:
Sandwiches are conveyed on a belt, and their number is to be counted as the daily production. Due to the fact that their position is not fixed and their height is not defined either a light barrier is not suited for this task. As the conveyor belt has a defined color, this color is taught in with several CR100 color sensors which are arranged widthwise. A counting impulse is sent to a central counter in case that at least one sensor does not recognize the background. The sensors are connected with an OR-circuit in the counter.
Products: CR10, CR100, CR50

Task:
Strip edge control, web width measurement, edge crack detection, hole detection
Areas:
Slitting lines, edge trimming shears
Measured Variables:
Position (Lixus)
Description:
Sheets of paper, aluminum or steel are inspected regarding geometric parameters in varied places in the production process. Among others, there is the width, but also the detection of cracks at the edges, as well as holes in the panels. The recognition of strip edges is a special task for position control.
Products: Lixus-i PN

Task:
Velocity Measurement
Areas:
Flying saw
Measured Variables:
Velocity (VLM)
Description:
Wire rod with a diameter of between 10 and 18mm is cut in motion with a flying saw according to customers’ specifications. The 0.1% accurate measurement of velocity performed by the VLM device ensures synchronous movement between the saw and the wire rod. Damage or early wear by measurements that are subject to slip can thus be avoided. Velocities of between 20 m/min and 60m/min are applied. Shiny, oiled or dry surfaces are detected in a reliable way.
Products: VLM500, VLM502

Task:
Velocity measurement
Areas:
Skin pass level, degree of stretching, mass flow
Measured Variables:
Velocity (VLM)
Description:
In order to control rolling mills according to the mass flow principle or to determine skin pass level or the degree of stretching, highly accurate measurements of differential velocity at the inlets and outlets of the stands are required. The VLM devices operate optically and contact-free, without slip and with measurement accuracy better than 0.05%. Due to the fact that several devices can be synchronized, they are well-suited to the measurement of differential velocity. Appropriate protective cases allow for their use in this environment.
Products: VLM500, VLM502

Task:
Velocity measurement, Length measurement
Areas:
Tube inspection lines
Measured Variables:
Velocity (VLM)
Length (VLM)
Description:
Ultrasonic and eddy-current testing systems for tubes and profiles require the speed of an object in order to synchronize the test probes on the moving objects. As individual objects pass the inspection line, the use of tactile measuring wheels would be very complex and failure-prone. The VLM operates optically and contact-free and records the speed of the object slip-free and precisely from the distance. At the same time the devices can determine the length of the object. The nature of the object’s surface does not have an influence on the measurement.
Products: VLM500, VLM502

Task:
Velocity measurement, Length measurement
Areas:
Hot objects
Measured Variables:
Velocity (VLM)
Length (VLM)
Description:
The VLM measures the velocity and length of objects in motion optically and contact-free from the distance. Therefore it is especially suited to the measurement of problematic surfaces such as hot objects. The device measures on objects of over 1.000°C. An optional protective case and a blower make its implementation under such conditions possible.
Products: VLM500, VLM502