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Use at High Ambient
Temperatures and
with Glowing Objects

Grâce à leur con­cep­tion ro­bus­te, les cap­teurs pour tem­pé­ra­tu­res am­bian­tes éle­vées con­vien­nent par­fai­te­ment à une uti­li­sa­tion dans des ins­ta­lla­tions in­dus­trie­lles exi­gean­tes, te­lles que l’au­to­mo­bi­le, le verre et l’acier. Outre leur ré­sis­tan­ce à des pla­ges de tem­pé­ra­tu­re éle­vées, les cap­teurs sont éga­le­ment conçus pour ef­fec­tuer des me­su­res sur des sur­fa­ces in­can­des­cen­tes. Les va­rian­tes avec laser bleu per­met­tent d’ob­te­nir des ré­sul­tats fia­bles sur des ob­jets in­can­des­cents.
Défis
Advantage of Blue Laser
Sectors and Industries
Overview of Solutions
Sensors
Machine Vision
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Défis liés aux tem­pé­ra­tu­res am­bian­tes éle­vées et aux ma­té­riaux chauds

Émis­si­vi­té éle­vée

Défi : Une émis­si­vi­té éle­vée des ob­jets in­can­des­cents sig­ni­fie qu’ils émet­tent beau­coup de ra­yon­ne­ment ther­mi­que. En rai­son du ra­yon­ne­ment ther­mi­que in­ten­se et des tem­pé­ra­tu­res éle­vées, ils peu­vent in­fluen­cer les va­leurs de me­su­re des cap­teurs.


So­lu­tion : 
 

Re­flets et ré­fle­xions de flui­des chauds

Défi : Les flui­des li­qui­des chauds po­sent un défi en rai­son de leur sur­fa­ce mo­bi­le et non fixe ainsi que des ré­fle­xions fré­quen­tes qu’ils pro­vo­quent. Les flui­des ré­flé­chis­sants, en par­ti­cu­lier, dis­per­sent la lumière ou les fais­ceaux laser de manière irrégulière, ce qui peut pro­vo­quer plu­sieurs sig­naux de dis­tan­ce. 

So­lu­tion :
Les cap­teurs de dis­tan­ce laser à temps de vol per­met­tent une me­su­re fia­ble des flui­des chauds et li­qui­des. Les cap­teurs sont ca­pa­bles de dé­tec­ter plu­sieurs ob­jets dans la plage de me­su­re et d’éli­mi­ner les ré­fle­xions per­tur­ba­tri­ces. Cela per­met de sé­pa­rer le sig­nal per­ti­nent du flui­de de celui d’un arrière-​plan per­tur­ba­teur. De cette manière, le sig­nal de me­su­re reste sta­ble même dans des con­di­tions dif­fi­ci­les, comme avec des li­qui­des ré­flé­chis­sants.
 

Con­di­tions am­bian­tes extrêmes

Cha­llen­ge: Ex­tre­me am­bient con­di­tions can di­rectly in­fluen­ce the mea­su­red va­lues of the sen­sors, as tem­pe­ra­tu­re fluc­tua­tions con­tract and ex­pand the hou­sing ma­te­rial. This chan­ges the op­ti­cal com­po­nents, which in­fluen­ces the mea­su­red va­lues. 

So­lu­tion: 

Am­bient Tem­pe­ra­tu­re up to 250 °C

Cha­llen­ge: In ex­tre­mely hot en­vi­ron­ments of up to 250 °C, con­ven­tio­nal sen­sors may melt or be da­ma­ged by the high tem­pe­ra­tu­res. 

So­lu­tion:

  • The sen­sors for the high tem­pe­ra­tu­re range are dis­tin­guished by their ro­bust and par­ti­cu­larly heat-​resistant hou­sing de­sign. 

  • Temperature-​resistant glass fiber-​optic ca­bles are sui­ta­ble for con­fi­ned spa­ces. Sig­nal eva­lua­tion takes place ex­ter­nally via the fiber-​optic am­pli­fier outsi­de the high tem­pe­ra­tu­re range.

The Ad­van­ta­ges of Blue Laser on Red Glo­wing Sur­fa­ces

Ge­ne­ral In­for­ma­tion on the Light Spec­trum

The light spec­trum con­sists of dif­fe­rent wa­ve­lengths. Each has a dif­fe­rent color. A color can be as­sig­ned to each wave in the color spec­trum. Red light dif­fers from blue light in its wa­ve­length and energy den­sity.

  • Blue light has a wa­ve­length of 380 to 500 nm and is cha­rac­te­ri­zed by a high energy den­sity.

  • Red light, on the other hand, has a wa­ve­length of 640 to 690 nm and a lower energy den­sity than blue light.


Sig­nal from Red and Blue Laser on Glo­wing Sur­fa­ce

Blue laser light of­fers the ad­van­ta­ge of de­li­ve­ring re­lia­ble and pre­ci­se mea­su­re­ment re­sults on red glo­wing sur­fa­ces. This is be­cau­se a sen­sor with blue laser light only allows blue wa­ve­lengths th­rough its band­pass fil­ter, while other spec­tral ran­ges are bloc­ked. This fil­ters out the red and in­fra­red light emit­ted mainly by glo­wing ob­jects. Only the blue laser light from the sen­sor reaches the op­tics and ge­ne­ra­tes a sta­ble sig­nal on the line.

In con­trast, the band­pass fil­ter of a sen­sor with red laser na­tu­rally lets red light th­rough to cap­tu­re the sen­sor’s own laser light. Ho­we­ver, since red and in­fra­red light are spec­trally close to­gether and the band­pass fil­ter al­ways allows a small wa­ve­length range, in­fra­red light can also pass th­rough the band­pass fil­ter. Since glo­wing ob­jects mainly emit red and in­fra­red ra­dia­tion, these dis­tur­bing wa­ve­lengths also reach the line. This leads to a sig­ni­fi­cant re­duc­tion in the sen­sor sig­nal. As the blue laser blocks the in­ter­fe­ring waves, a more sta­ble and ac­cu­ra­te mea­su­re­ment is pos­si­ble.


 

In­dus­tries with High Tem­pe­ra­tu­res and Glo­wing Ob­jects

Fill-​Level Mea­su­re­ment with Li­quid Alu­mi­num

Cha­llen­ge:
Cas­ting alu­mi­num bars is a cen­tral pro­cess in the cas­ting in­dustry. The fill level of the li­quid alu­mi­num, which reaches a tem­pe­ra­tu­re of 700 °C, must be mo­ni­to­red. Ho­we­ver, the ex­tre­me heat crea­tes a re­flec­ti­ve sur­fa­ce that can strongly re­flect light rays and in­fluen­ce the mea­su­re­ment.

So­lu­tion: 

Coar­se Wire Mea­su­re­ment in Steel Mills

Cha­llen­ge:
Du­ring the pro­duc­tion of coar­se wire in steel­works, bi­llets up to 1,200 °C must be ro­lled and then chec­ked for geo­me­tric qua­lity cha­rac­te­ris­tics such as dia­me­ter, ova­lity, ro­lling or sur­fa­ce de­fects.

So­lu­tion: 



Po­si­tio­ning Hot Slabs

Cha­llen­ge:
Du­ring initial ro­lling ope­ra­tions, slabs must be co­rrectly po­si­tio­ned for qua­lity con­trol to en­su­re that slabs are pro­ces­sed evenly. Due to the ex­tre­mely high tem­pe­ra­tu­res of the slabs, it is ne­ces­sary to mea­su­re from a long dis­tan­ce.

So­lu­tion: 

Thick­ness Mea­su­re­ment with An­nea­led Metal

Cha­llen­ge: 
Thick­ness mea­su­re­ment of an­nea­led metal plays a cru­cial role in in­dus­trial pro­ces­ses such as metal or steel pro­duc­tion. The ex­tre­mely high tem­pe­ra­tu­res pre­sent a cha­llen­ge as they could da­ma­ge con­ven­tio­nal sen­sors due to the heat or af­fect their ac­cu­racy. Due to the glo­wing sur­fa­ce, red laser light pe­ne­tra­tes deep into the sur­fa­ce and can make mea­su­re­ments un­re­lia­ble.

So­lu­tion: 




 

Over­view of So­lu­tions

Laser Distance Sensors Triangulation

Laser Distance Sensors Triangulation

These laser distance sensors work with a fine blue light beam and a high-resolution CMOS line. They determine the distance between the sensor and the object by means of the triangulation principle. Thanks to the integrated TripleA technology, the sensors offer high precision, temperature stability and material independence. The blue laser light enables enhanced performance on challenging surfaces. 






 

Glass Fiber-Optic Cables

Glass Fiber-Optic Cables

Thanks to their flexibility, glass fiber-optic cables can be easily integrated even in confined spaces. With their high transmission efficiency, they enable precise measurements over long distances. Glass fiber-optic cables are an ideal solution in high temperatures or in aggressive ambient conditions in particular.

MLSL 2D/3D Profile Sensors

MLSL 2D/3D Profile Sensors

The compact MLSL 2D/3D profile sensors offer maximum capabilities in the tightest spaces as well as good resolution with height profiles of 1,280 points per profile and a detection rate of up to 4 kHz. They are available in three different laser classes and two laser colors and are characterized by high resistance to external light. 

Temperature Sensors

Temperature Sensors

Sensors of this type measure the temperature of objects contactlessly using infrared radiation – regardless of material, size and state of aggregation. Two switching outputs and an analog output enable the comparison of target/actual values as well as absolute measurements.


 

Laser Distance Sensors Time of Flight in 316L Housing

Laser Distance Sensors Time of Flight in 316L Housing

The time-of-flight laser distance sensors function in accordance with the time-of-flight measurement principle with laser class 1. The wintec sensor also works very reliably in adverse ambient conditions, such as those caused by ambient light or contamination. The robust stainless steel housing (1.4404/316L) is resistant to oils, coolants and cleaning agents.

Inductive Sensors for Extreme Temperature Ranges

Inductive Sensors for Extreme Temperature Ranges

These inductive sensors detect contactlessly metallic objects in extreme temperature ranges. With increased switching distances and a very robust design, the sensors are designed for a long service life of several years.

MLWL 2D/3D Profile Sensors

MLWL 2D/3D Profile Sensors

The sensors from the MLWL series are available in three different laser classes and two laser colors and are characterized by very high resistance to ambient light. They are suitable for reliable measurement in small measurement volumes and for profile measurements at greater distances.

Laser Distance Sensors Triangulation

Laser Distance Sensors Triangulation

These laser distance sensors work with a fine blue light beam and a high-resolution CMOS line. They determine the distance between the sensor and the object by means of the triangulation principle. Thanks to the integrated TripleA technology, the sensors offer high precision, temperature stability and material independence. The blue laser light enables enhanced performance on challenging surfaces. 






 

Glass Fiber-Optic Cables

Glass Fiber-Optic Cables

Thanks to their flexibility, glass fiber-optic cables can be easily integrated even in confined spaces. With their high transmission efficiency, they enable precise measurements over long distances. Glass fiber-optic cables are an ideal solution in high temperatures or in aggressive ambient conditions in particular.

MLSL 2D/3D Profile Sensors

MLSL 2D/3D Profile Sensors

The compact MLSL 2D/3D profile sensors offer maximum capabilities in the tightest spaces as well as good resolution with height profiles of 1,280 points per profile and a detection rate of up to 4 kHz. They are available in three different laser classes and two laser colors and are characterized by high resistance to external light. 

Temperature Sensors

Temperature Sensors

Sensors of this type measure the temperature of objects contactlessly using infrared radiation – regardless of material, size and state of aggregation. Two switching outputs and an analog output enable the comparison of target/actual values as well as absolute measurements.


 

Laser Distance Sensors Time of Flight in 316L Housing

Laser Distance Sensors Time of Flight in 316L Housing

The time-of-flight laser distance sensors function in accordance with the time-of-flight measurement principle with laser class 1. The wintec sensor also works very reliably in adverse ambient conditions, such as those caused by ambient light or contamination. The robust stainless steel housing (1.4404/316L) is resistant to oils, coolants and cleaning agents.

Inductive Sensors for Extreme Temperature Ranges

Inductive Sensors for Extreme Temperature Ranges

These inductive sensors detect contactlessly metallic objects in extreme temperature ranges. With increased switching distances and a very robust design, the sensors are designed for a long service life of several years.

MLWL 2D/3D Profile Sensors

MLWL 2D/3D Profile Sensors

The sensors from the MLWL series are available in three different laser classes and two laser colors and are characterized by very high resistance to ambient light. They are suitable for reliable measurement in small measurement volumes and for profile measurements at greater distances.

Laser Distance Sensors Triangulation

Laser Distance Sensors Triangulation

These laser distance sensors work with a fine blue light beam and a high-resolution CMOS line. They determine the distance between the sensor and the object by means of the triangulation principle. Thanks to the integrated TripleA technology, the sensors offer high precision, temperature stability and material independence. The blue laser light enables enhanced performance on challenging surfaces. 






 

Sen­sors

Pro­duct Ad­van­ta­ges of sen­sors  Pro­duct links
P3 laser dis­tan­ce sen­sors trian­gu­la­tion
  • Blue laser for red glo­wing sur­fa­ces
  • Ro­bust alu­mi­num hou­sing for harsh en­vi­ron­ments
  • Hy­brid glass pro­tects the op­tics
  • Tem­pe­ra­tu­re drift of up to 2.5 µm/K

  • Sui­ta­ble for use in a tem­pe­ra­tu­re range from –30 to +60 °C
Pro­tec­ti­ve screen (3P)
  • Scratch-​resistant lens cover
  • For 50 × 50 × 20 mm (3P)
  • Pro­tec­tion against weld spat­ter and sparks
Laser dis­tan­ce sen­sors time of flight
  • Va­riant with ro­bust stain­less steel hou­sing 
  • High re­sis­tan­ce to am­bient light
  • Ro­bust in tem­pe­ra­tu­res from −40 to +50 °C
Pro­tec­ti­ve hou­sing (1P)
  • Stain­less steel hou­sing
  • For 50 × 50 × 20 mm (1P)
  • Pro­tec­ti­ve hou­sing for harsh en­vi­ron­ments

In­duc­ti­ve sen­sors for ex­tre­me tem­pe­ra­tu­re ran­ges
  • Long ser­vi­ce life up to 100,000 hours
  • Con­fi­gu­ra­ble swit­ching dis­tan­ces up to 40 mm
  • Temperature-​resistant in the tem­pe­ra­tu­re range –10 to +250 °C
Glass fiber-​optic cable
  • Ap­pli­ca­tions with li­mi­ted space avai­la­bi­lity
  • High trans­fer ef­fi­ciency
  • Tem­pe­ra­tu­re ran­ges from –25 to +180 °C
Tem­pe­ra­tu­re sen­sors
  • Con­tactless tem­pe­ra­tu­re mea­su­re­ment using in­fra­red ra­dia­tion
  • Tem­pe­ra­tu­re mea­su­re­ments from –25 to +350 °C 

Ma­chi­ne Vi­sion

Pro­duct Be­ne­fits of ma­chi­ne vi­sion  Pro­duct links
MLWL 2D/3D pro­fi­le sen­sors
  • Pre­ci­se re­so­lu­tion of the mea­su­ring range X (> 2,000 mea­su­ring points)
  • Crea­ting 2D ele­va­tion pro­fi­les and 3D point clouds
  • Blue light for ap­pli­ca­tions on metal, or­ga­nic or semi-​transparent ma­te­rials
MLSL 2D/3D pro­fi­le sen­sors
  • Crea­ting 2D ele­va­tion pro­fi­les and 3D point clouds
  • Com­pact, light­weight de­sign – even sui­ta­ble for robot ap­pli­ca­tions
  • Avai­la­ble with laser class 3
  • In­te­gra­ted data eva­lua­tion and trans­fer
Pro­tec­ti­ve screens 
  • Scratch-​resistant lens cover
  • Pro­tec­tion against weld spat­ter and sparks
Co­oling units 
  • Co­oling of the sen­sor by water or air
  • Co­oling and hea­ting ope­ra­tion pos­si­ble
Pro­tec­ti­ve hou­sing
  • Pro­tec­tion against the ef­fects of in­dus­trial en­vi­ron­ments
  • High de­gree of pro­tec­tion

Pro­duct Flyer for High Tem­pe­ra­tu­res and Glo­wing Ob­jects

P3 Series Product Flyer
P3 Series Product Flyer (2 MB)

This do­cu­ment pro­vi­des an over­view of the P3 se­ries laser dis­tan­ce sen­sors.

der wintec. Brochure
der wintec. Brochure (1 MB)

This do­cu­ment con­tains the bro­chu­re on long-​range laser dis­tan­ce sen­sors with win­tec (wen­glor interference-​free tech­no­logy).

weCat3D 2D/3D Profile Sensors Product Flyer
weCat3D 2D/3D Profile Sensors Product Flyer (3 MB)
This do­cu­ment con­tains the flyer for 2D/3D pro­fi­le sen­sors.
Inductive Sensors for Extreme Temperature Ranges Product Flyer
Inductive Sensors for Extreme Temperature Ranges Product Flyer (9 MB)

This do­cu­ment con­tains the pro­duct flyer for the in­duc­ti­ve sen­sors for ex­tre­me tem­pe­ra­tu­re ran­ges.

P1XD Product Flyer
P1XD Product Flyer (902 KB)

This do­cu­ment pro­vi­des an over­view of the P1XD se­ries fiber-​optic am­pli­fiers.

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