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Temperature measurement, surface temperature, intelligent pyrometer

Temperature is a critical factor in many processes and must often be measured. Non-contact infrared measurement is often the better alternative for this as compared with tactile methods. Temperature measurement without this method can no longer be imagined for machine maintenance, process control and quality control. Intelligent handheld units are used for mobile usage. Stationary IR sensors are suitable if the temperature has to be permanently measured at one position.

Temperaturmätning vid induktionshärdning

Spänningar i metallen kan uppstå vid induktionshärdning. Detta kan motverkas genom återuppvärmning till en bestämd temperatur som är lägre än härdningstemperaturen. Micro-Epsilons pyrometrar, med en bestämd våglängd, mäter temperaturen på ett säkert avstånd.

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Asphalt mixing systems - temperature measurement

For temperature measurements in asphalt mixing systems, both the temperature of the mineral discharge and the temperature after mixing are measured. Infrared sensors from Micro-Epsilon are used for this which still operate reliably even under adverse environmental conditions.

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Building materials – temperature measurement

Micro-Epsilon temperature sensors are always used for the manufacture of construction materials when the monitoring and control of the temperature are critical for the product quality and productivity. The most important application areas are the cement industry, the production of plasterboard sheets and the pretensioning of architectural glass.

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Non-contact IR temperature measurement of plastic film

Non-contact temperature measurement of thin plastic films is in practice a difficult measurement task. Depending on the type of plastic, the measurement must be performed in different spectral ranges. In research and development of printable films, the surface temperature of heated plastic films is detected using a CTP-7 pyrometer (spectral range 7.9µm). Furthermore, the thermoMETER CTP-3 thermometer with a spectral range of 3.43µm is also suitable for non-contact temperature measurement of plastic films.

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Bolts – temperature measurement

Bolts are preheated to 400 °C - 500 °C in order to be pressed easily by the die. Micro-Epsilon pyrometers are used to measure the temperature. Maintenance of the optimum preheating temperature is important in order to ensure a smooth production process and to increase the process speed.

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Brake disc temperature measurement for Formula Student

In the optimisation of braking systems for the High Octane Motorsports e.V. racing car at the University Erlangen-Nürnberg, the temperature rise of the brake disc needs to be measured during on-road testing.

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Smält järn och stål - temperaturmätning

Temperatur är en viktig processvariabel vid järn- och stålproduktion. Att hålla sig till förutbestämda temperaturer säkerställer bland annat hög produktkvalitet. Genom att tillhandahålla tillförlitliga och reproducerbara mätresultat, särskilt i högtemperaturprocesser, har beröringsfri infraröd temperaturmätning från Micro-Epsilon blivit väl etablerad inom metallproduktions- och processindustrin. Infraröda temperatursensorer och värmekameror från Micro-Epsilon används ofta vid övervakning och kontroll. Många modeller, utrustningsalternativ och ett omfattande gränssnittskoncept möjliggör snabb och enkel integration.

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Bottle and hollow glass - temperature measurement

Special sensors which are used for permanent temperature monitoring are installed at the individual stations of the glass production line.

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Film extrusion - temperature measurement

Infrared temperature sensors from Micro-Epsilon measure the film temperature before the three-roller mill. An optimal regulation of the process temperatures is made possible due to the precise temperature values which results in a constantly high product quality.

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Casting - temperature measurement

The measurement and the documentation of the production parameters in foundries are playing more and more important roles for the compliance with the quality requirements. Particular attention must be paid here to the measurement of the temperature in the production process.

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Plaster hardening - temperature measurement

Stationary Micro-Epsilon temperature sensors are used for optimisation of the additives during plaster hardening. Due to the constant temperature monitoring of the hardening reaction, defects can be detected immediately and thus sustainably increase the quality.

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Glass machining – temperature measurement

In order to be able to bend and shape flat glass, the exact glass surface temperature must be taken into account. Special pyrometers from Micro-Epsilon have been developed for measuring in glass manufacturing.

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Glass industry / glass - temperature measurement

Temperature plays an important role in the glass industry for many manufacturing and production processes. It is a matter of obtaining precise temperature measurements of transparent (glass) and non-transparent (moulds, crown and side walls of the glass furnace) objects.

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Hardening – temperature measurement

In order to manufacture constant high quality products, the temperature of the workpieces must be precisely measured during the hardening. Non-contact infrared sensors from Micro-Epsilon are suitable for hardening processes due to their particular characteristics.

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Non-contact body temperature measurement using thermal imaging cameras

The Acrovision AFS-100 Fever Screening Solution detects elevated body temperatures. It is used in public institutions such as airports, schools and hospitals, at service providers, manufacturers and in public transportation as an effective instrument to measure the temperature of the skin surface. The system consists of a thermal imaging camera, an ambient reference radiator and a monitor. The British company Acrovision relies on technology from Micro-Epsilon for this system. For temperature measurement, the thermoIMAGER TIM QVGA-HD-T100 camera is used.

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Cooling process - temperature measurement

After pressing, the heated metal object is subjected to the cooling process. In order to guarantee a high quality finished product, a controlled cooling rate is necessary. Non-contact thermometers from Micro-Epsilon are particularly suitable for the temperature monitoring.

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Foodstuffs - temperature measurement

Constant temperature monitoring for the quality assurance is a must for monitoring production processes, foodstuffs storage and the sale of foodstuffs. Non-contact infrared thermometers are particularly used in the areas of storage, transport and manufacturing processes such as baking, freezing, roasting and refining.

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Glued wood - temperature measurement

After drying and sorting the wood laminates, they are cut to the required length, glued, stacked and pressed afterwards. They are heated using microwaves for the glue drying and the individual glue layers are measured with a very small infrared spot size. The extremely small measuring spot diameter of the Micro-Epsilon thermometers makes friction-free measurement possible.

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Soldering systems - temperature measurement

Metal teeth for saw blades are soldered in soldering machines. In doing so, a fast IR temperature measurement provides exact regulation and prevents mechanical stresses in the saw blade and the danger of crack formation.

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Measuring of the haptic contact temperature

Contact or touch temperature is an important parameter in the tactile quality of a surface. The feeling of the temperature that a material causes can be determined by using a measuring system. If this parameter is known, an objective feeling of quality can be made. The measurement results are shown on a sensotact-scale – a tactile reference system. A physical basis for these values is created by measuring the temperature of the surface shim. Afterwards a step-less measuring analogue of the reference scale is possible. In the measuring system, temperature sensors of the thermoMETER CSmicro series are used.

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Surface inspection using thermal imaging cameras

Different temperatures in a workpiece can be an indication of faulty production. Thermal imaging cameras visualize these so that workpieces can be automatically checked for various geometrical features or conclusions can be drawn about their quality. The "imess" company relies on the thermoIMAGER series of thermal imaging cameras from Micro-Epsilon in its inline inspection machines for quality control and dimensional accuracy testing. With its turnkey systems, imess serves numerous industries and applications.

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Paper, packaging industry - temperature measurement

Non-contact IR thermometers from Micro-Epsilon are used for fast and non-contact temperature measurement for the manufacture of paper products, particularly in the areas of coating and drying.

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Melting furnace – temperature measurement

The non-contact temperature measurement in glass furnaces, melting furnaces and feeders is a more and more frequently used alternative to measurement with thermal elements. Micro-Epsilon provides infrared temperature measurement systems particularly for this area which can operate efficiently even without cooling at an ambient temperature of up to 250 °C.

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Temperaturmätning vid formspruting

Användare av formsprutningsmaskiner för plasttillverkning står inför de ökande kvalitetskrav som ställs av slutanvändare, särskilt vid fordonsapplikationer. På grund av ökande globala krav på kvalitet ökar vikten av temperaturkontroll direkt efter extrudering.

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Steel production and processing - temperature measurement

Infrared thermometers from Micro-Epsilon are used for almost every production stage in the manufacture of steel and aluminium. The precision pyrometers from Micro-Epsilon are used in order to obtain reliable data for efficient process control.

Application areas:

  • Casting
  • Preheating
  • Warm and cold rolling
  • Forging, annealing, hardening
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Extrusion - temperature measurement

Precise temperature measurement at several places is necessary for extrusion: after preheating the bolt, for the discharge of the profile from the die and for quenching the extruded product. An additional check of the tool temperature is usually carried out in order to obtain optimum production results.

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Controlling infrared elements for precise temperature monitoring

Measuring the temperature of the radiation source and the ambient temperature are not sufficient to make clear decisions about the heating behavior of the target itself. Therefore, the product temperature must be monitored and analyzed, which is why Ceramicx uses IR temperature sensors from Micro-Epsilon. The measurement values provided allow conclusions to be made about the state of the finished product and help control the heating system. The thermoMETER CT sensors with external controller can be firmly installed into the heating systems during production. The compact and robust design makes space-saving installation possible. The sensor head is robust against high temperatures allowing the sensors to be fixed inside the heater housing looking directly at the object to be heated. The measurement is performed on a non-contact basis as direct surface contact via temperature probes would damage the component and is also not normally practical.

The infrared elements equipped with Micro-Epsilon sensors offer precise and repeatable process control of the end products. Therefore, the reject rate can be minimized while the controlled temperature regulation has a positive effect on energy consumption.

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Temperature measurement of PCBs

High quality PCBs with SMD components are repaired in rework stations. Hot air is used to remove any defective components and residual solder, to perform solder paste printing and to solder new components into place. The repair process starts automatically when the PCB reaches a specific surface temperature, which simplifies the replacement of defective SMD components. In addition, automatic start-up significantly reduces both the thermal load on the PCB and process time. For accurate temperature measurements, Finetech uses the thermoMETER CT non-contact infrared temperature sensor from Micro-Epsilon.

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Temperaturövervakning av drivbatterier under hantering och transport

En högupplöst värmekamera, thermoIMAGER TIM QVGA från Micro-Epsilon, övervakar de termiska egenskaperna hos drivbatterierna antingen under avstapling eller på ett transportband. För denna mätuppgift monteras kameran stationärt eller styrs till mätpunkten av en robotarm. Genom en enda, beröringsfri mätning detekterar den temperaturprofilen för hela batteriytan. Den individuella mätningen är tillräcklig för att tillförlitligt identifiera möjliga hot spots och defekter på batteriet. Tack vare en bildhastighet på 80 Hz kan korta cykeltider och hög genomströmning uppnås.

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Temperature measurement for vacuum mold equipment

Thermal vacuum mold equipment is used for the decentralised manufacture of mouth guards for teeth. A special film is heated for this and drawn into a shape using a vacuum. The temperature is measured without contact using thermoMETER CS so that the film has the correct temperature and elasticity for the reshaping. The measurement is performed quickly, precisely and without effects on the target.

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Tunnel kiln - temperature measurement

The use of precision pyrometers is indispensable for optimum furnace regulation in order to measure the exact internal temperature. The Micro-Epsilon temperature sensors have successfully proven themselves for the stationary measurement on the furnace.

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