Sensor Instruments
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Press Releases Sensor Instruments


30 June 2020
 
  Gaps in Parquet Flooring

Dear manufacturers of vinyl flooring, don't worry, we will find the gap!

From the range of RED series edge detectors the RED-50-L and RED-110-L sensors are especially suited for detecting gaps, i.e. in this application the distance of two parquet panels. These edge detectors reliably detect gaps starting from a depth and width of approx. 0.05mm.
With the supplied software the laser edge detector can be adapted to different surfaces: From dark to bright, and from matt to glossy. With a maximum scan frequency of typ. 85kHz the sensor also is excellently suited for high-speed object handling.
 
► Press release (pdf)
► Press release (Word/pdf)
 

    RED-110-L

    RED Series
 


22 June 2020
 
  Perfect Gloss for Metal Plates!

When metal plates are painted, both their color and their gloss factor must be measured after the painting process. Gloss measurement is performed inline and immediately after the painting process to allow a quick response to possible deviations of the gloss factor from the respective setpoint value.
A gloss sensor of the GLOSS series (GLOSS-15-60°) that measures the gloss factor at a distance of 15mm from the object is used for this application.
 
► Press release (pdf)
► Press release (Word/pdf)
 

    GLOSS-15-60°

    GLOSS Series
 


9 June 2020
 
  Color Measurement of Painted Metal Plates

The color of metal plates should be measured immediately after the painting process. It must be taken into account here that there are both high-gloss surfaces and very dull surfaces, and that the color value must be determined irrespective of the gloss factor. Furthermore, measurement must be performed inline, on the one hand to satisfy the requirements of 100% inspection, and on the other hand to be able to quickly respond to a possible color drift.
The recommended color sensor for this application is a sensor of the SPECTRO-3 series operating with the 45°/0° method (SPECTRO-3-28-45°/0°-MSM-ANA-DL).
 
► Press release (pdf)
► Press release (Word/pdf)
 

    SPECTRO-3-28-45°/0°-MSM-ANA-DL

    SPECTRO-3-MSM-ANA Series
 


26 May 2020
 
  Proper Gloss for Decor Foils

Apart from plastic foils, paper-based foils are more and more used both in the furniture industry and in the flooring sector. Nowadays decor papers for example are available for kitchens, furniture elements, and laminate flooring. However, one requirement applies both to plastic and paper-based decor foils: Constant quality and brilliant appearance must be ensured during production.
The inline gloss sensor GLOSS-15-60° that continuously measures the gloss factor of decor foils definitely makes a decisive contribution to achieving this.
 
► Press release (pdf)
► Press release (Word/pdf)
 

    GLOSS-15-60°

    GLOSS Series
 


14 May 2020
 
  No Problems Counting Fan Blades

In the production of radial and axial fans the checking of the correct frequency response depending on the applied DC voltage is one of the final steps. The easiest method for measuring the frequency is to use a transmitted-light sensor (for example a D-LAS2-d1.0-T + D-LAS2-Q-d1.0-R-HS, featuring a switching frequency of typ. 300kHz). In many cases, however, the fan blades of the respective fan version only can be accessed from one side for testing, so that a reflected-light sensor must be used as an alternative.
The edge detectors of the RED series (RED-50-L or RED-110-L) are excellently suited for such applications.
 
► Press release (pdf)
► Press release (Word/pdf)
 

    RED-50-L, RED-110-L

    RED Series  
 


7 May 2020
 
  Optical INLINE Sensors in Plastics Production and Recycling

A range of initiatives and technical solutions have been developed to improve the sorting of plastics and thereby increasing the recycling quota. A number of procedures use near infra-red procedures to differentiate between the base materials of plastics; others apply codes to enable the sorting and traceability of plastic packaging.
Sensor Instruments and GABRIEL-CHEMIE have combined to develop a new technology which integrates a machine-readable signature in a range of plastic materials.
 
► Press release (pdf)
► Press release (Word/pdf)
 

    Marking and precise authenthication of plastic
    products

    Taggant Technology TAGTEC  
 


7 April 2020
 
  Counting Folds at Flex-Pipe

In the production of aluminium flex-pipes the decisive factor is not really the measured length of the flex-pipes but rather the number of existing folds, because due to the material's "accordion effect" the actual length cannot be accurately measured. In this application an edge detector of the RED series (e.g. RED-50-L or RED-110-L) is used to count the folds. During edge counting the aluminium flex-pipe is moved along the laser sensor. The sensor provides a digital output signal for every edge.
 
► Press release (pdf)
► Press release (Word/pdf)
 

    RED-50-L, RED-110-L

    RED Series  
 


23 March 2020
 
  Frequency of Compressor Wheels

The task is to measure the frequency of compressor wheels that are used in turbochargers. These wheels may reach speeds of up to 300,000 revolutions per minute. Usually these compressor wheels have about 10 blades and are made of milled aluminum. If the frequency of these compressor wheels should be determined optically it must be taken into consideration that every blade causes a signal change - which means that up to 3,000,000 switching processes must be expected per minute, resulting in a frequency of approx. 50 kHz (of the blades). Even an edge detector of type RED-50-P or RED-110-P with its maximum scan frequency of typ. 100 kHz will work up quite a "sweat" here.
 
► Press release (pdf)
► Press release (Word/pdf)
 

    RED-50-P, RED-110-P

    RED Series  
 


9 March 2020
 
  Sandpaper Grain Size Measured as Gloss

In the production of sandpaper it must be ensured that the grain size of the abrasive material (e.g. aluminum oxide or silicon carbide) always lies within the permitted tolerance range. Previously performed laboratory tests showed that the gloss factor of the sandpaper surface correlates quite well with the grain size: The smaller the grain size, the higher the corresponding gloss factor.
 
► Press release (pdf)
► Press release (Word/pdf)
 

    GLOSS-5-85°, GLOSS-15-60°

    GLOSS Series  
 


4 March 2020
 
  Do not overstep the red line

Plastic wires with various thicknesses, colors, forms and surface properties are used for a range of different purposes. Examples include tennis rackets with polyester monofilaments; the triangular profile of the racket strings produces greater spin. Flat material is most suitable for the monofilaments used in the production of large plastic bags (big bags). Transport filter belts used in the wet areas of paper production are made of round plastic monofilaments; the plastic wires used in toothbrushes have abrasive material added to them. Plastic monofilaments are now also used in 3-D printing procedures. This process also uses round wires with various diameters. In addition to the form, color consistency is decisive, as color deviations in plastics are often interpreted as quality inconsistencies. Woven products such as plastic sieves, big bags and tennis rackets are especially prone to this phenomenon as even very small color nuances (usually from a color difference of dE=1) are perceptible. Manufacturers need to inspect the color of the monofilaments during production, i.e. inline. The object size, form and gloss of the plastic monofilaments have previously impeded the use of inline color measuring devices, especially as a color deviation of > dE = 0.7 needs to be detected reliably.
 
► Press release (pdf)
► Press release (Word/pdf)
 

    SPECTRO-3-12-DIF-MSM-ANA-DL

    SPECTRO-3-MSM-ANA Series  
 


27 February 2020
 
  Wire Counting at Stranding Machines

In the production of cables or of high-voltage lines the individual insulated conductors or aluminium wires must be stranded, which in practice is performed by stranding machines. In this process the individual conductors or wires are wound around a core wire. The core wire with relative ease can be inspected for possible wire breaks by using a suitable laser light barrier operating with the transmitted-light method.
An inspection of the outer conductors or outer wires can be realised with a correspondingly adapted edge detector of the RED series (RED-110-P-F60).
 
► Press release (pdf)
► Press release (Word/pdf)
 

    RED-110-P-F60

    RED Series  
 


4 February 2020
 
  Not always down!

Some aspects of technology very well can be compared to real life: The direction is not always up or down. After a "down" there often is an "up" again, and this also applies to edges: As a rule a rising edge is followed by a falling edge, and vice versa. 
In the series of edge detectors the RED-60-CLS-L and the RED-60-CLS-P now allow the detection of rising and falling edges. 
 
► Press release
► Press release (Word/pdf)
 

    RED-60-CLS-L, RED-60-CLS-P

    RED Series  
 


7 November 2019
 
  Perfect Light for the Car Interior

Light Guide Rods
More and more cars today are equipped with light guide rods in their interior, the so-called ambiance area, for example in door panels, dashboard, center console, and roof lining. Through semi-transparent flat strips these light guide rods guide the light into the interior of the car. Any inhomogeneity in the light guide rod would influence the scattering behaviour of the output light. When driving in the dark, a passenger in the car interior would notice this as a bright or dark position along the light strip and would be disturbed by it.
 
► Press release
► Press release (Word/pdf)
 

    SPECTRO-3-FIO-ANA-LEDCON-HA

    SPECTRO-3-ANA Series  
 


14 October 2019
 
  Tracking the Invisible

Inline Detectors Offer a new Method of Component Marking
In the course of a comprehensive digitisation of industrial production and processes (keyword: Industry 4.0) a new method of marking manufactured components now offers previously undreamed-of possibilities. By way of an individual marking (a random distribution of fluorescent particles on the object surface or in the object matrix) a virtual key can be generated and can be used to save product-relevant data e.g. on the server (or in the cloud). Due to the random distribution of these fluorescent particles this "star code" represents a kind of "digital fingerprint". Already a few particles in the viewing field are sufficient to guarantee safe and robust recognition, with little required memory space per code.
 
► Press release
► Press release (Word/pdf)
 

    LUMI-STAR-MOBILE and LUMI-STAR-INLINE

    LUMI Series  
 


29 April 2019
 
  Perfect Gloss Measurement!

Hand-held units for measuring the gloss level have been successfully used in the industry for years, and three viewing angles have been established as a standard: 20°, 60° and 85° measured from the vertical axis. The paper industry is an exception here and primarily uses viewing angles of 45° and 75°. The gloss level is determined by measuring the direct reflection at the object surface to be inspected.
 
► Press release
 

    Inline gloss meters

    GLOSS Series  
 


22 March 2019
 
  Choose the Right Side

95% of all the industrially produced flat glass today is made using the float glass process. In this process, molten glass is continuously fed into a bath of molten tin. Due to its lower specific weight the molten glass floats on the smooth tin surface, and on a long tin bath forms a uniformly thick and extremely smooth film. The glass side that faces the molten tin is slightly contaminated with tin, which has corresponding effects on subsequent float glass processing steps such as coating of the glass surface.
For the further processing of float glass it is therefore important that the surface that is contaminated by the tin bath can be distinguished from the so-called fire side (fire polishing, during float glass production the glass side facing away from the molten tin is heated).
 
► Press release
 

    Contrast sensor
 
    SPECTRO-1-FIO-UVC/UVC   
 


20 February 2019
 
  Problems With Folds?

In the production of oil and air filters for the automobile industry these filters must reach the required throughput rate, which is achieved by folding the filter material so that it provides a large filter surface on a minimum of space. Depending on the filter type there are differences in the fold depth and in the numbers of folds.
 
► Press release
 
      Laser edge detector 
    RED-110-L   
 


7 February 2019
 
  Welding Seam Detection With Edge Detectors

For the detection of welding seams, contrast or color sensors would seem to be the proper solution, because in most cases the welding seam optically shows a clear difference from the surrounding product surface. In everyday practice, however, it turns out that these methods involve frequent readjustment and reparameterisation.
 
► Press release
 
 
      Laser edge detector 
    RED-110-L   
 


4 February 2019
 
  Connected to the Future!

Up to now it may have been sufficient for a sensor manufacturer to provide systems with digital outputs, a 0V to +10V analog voltage output, and a 4mA to 20mA analog current output. In the foreseeable future, however, communication between sensors and programmable logic controllers (PLCs) primarily will be performed in digital serial form with a correspondingly high data rate. The future belongs to the so-called Industrial Ethernet.
 
► Press release 
 
      RS232-to-PROFINET® converter and
    RS232-to-EtherCAT® converter  
 

 
21 January 2019 
 
  Detection of Transparent Edges

Conventional detectors particularly reach their limits when they have to detect and count stacked transparent objects such as plastic drinking cups of plastic caps. Especially in the process of packaging, however, it is of great importance to place the exact number of objects in a packaging unit. Such problems now can be solved with the RED series (a RED-110-L was used for this application).
 
► Press release
 
 
      Laser edge detector 
    RED-110-L   
 


26 November 2018
 
  A Hazy Problem?

At first everything seemed to be quite clear, just another measurement task that we surely would manage without any problems with one of our GLOSS series sensors. According to the descriptions provided by the customer it seemed to be gloss grade measuring task, and at the beginning the only question seemed to be at which angle measurement should be performed: 20°, 60° or 85° from the vertical?
 
► Press release

              
     Gloss sensor 
   GLAST-85-30°/30°-DIF-1.0/1.0
 


19 November 2018

  Perfect Copy Counting

When cartons, magazines, or single sheets are packed, it must be ensured that each package has the correct number of items. In most cases such material is transported in shingled form before, as with magazines, newspapers or advertising prints, it is packed by means of a compensating stacker. Depending on the thickness of the individual copies and on their transport speed (up to 10m/s) the shingled stream may have differing heights in this process. 

► Press release
 
     Laser edge detector
   RED-110-L



19 November 2018

  Clear Strategy or Plain Guessing?

In the last years the spray nozzles at windscreens have seen quite some development. The jet now comes as a fan jet or spot jet. A homogeneous spray mist application onto the intended angle range is now accurately guaranteed with fan jets, as is the point-shaped jet application on the front cameras by means of exactly directed and hardly diverging spot jets.

► Press release 
     Laser line through-beam sensor
   L-LAS-TB-100-AL-SC



9 November 2018

  INLINE Color Measurement of Paint Through a 15mm Thick Inspection Glass

Usually the color checking of color paint during production primarily is done in a laboratory. A paint sample is taken, and the color of this sample is then checked by way of a thin paint layer in dry condition. This process of course takes some time, time in which paint production might run out of the permissible tolerances and thus might require time-consuming and expensive follow-up treatment.

► Press release
 
     Color measurement sensor
   SPECTRO-3-28-45°/0°-MSM-ANA-DL



22 October 2018

  Accurate High-Speed Counting of Stacked Plastic Caps

Especially the counting of transparent, stacked plastic caps, as they for example frequently are used in the packing industry, usually is a highly problematic application because on the one hand the edges of individual caps are not always exactly aligned, and on the other hand copy counters that work with the reflected-light principle do not provide a reliable counting result especially with transparent objects. 

► Press release
 
     Laser through-beam sensor
   
A-LAS-N-F16-9.5x0.8-150/80-C-2m with
   electronic control unit SPECTRO-1-CONLAS


NEWS

Trade fairs:

Empack Utrecht 2020
15, 16 & 17 September 2020
Jaarbeurs Utrecht

all about automation 2021
9 & 10 March 2021
Messe Friedrichshafen


more...



New applications:


Orientation control of maize kernels
(N°693)
Fluorescence color control of yarn bobbins
(N°694)
Gloss measurement of leather imitations
(N°695)

more...



New press release:

Gaps in Parquet Flooring
RED Series

more...



New videos:

Tutorial L-LAS-Spray-Control-Scope V2.0 software
Counting transparent plastic covers with SPECTRO-1-CONLAS and A-LAS-N-F16-...
Product authentication with LUMI-STAR-MOBILE-BL/OR-POL-IOS
Leather marking with LUMI-INLINE-SL-IR/IR

more...



Important notes about software updates:

more...




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