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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | AMIR INFRARED MEASURING TECHNOLOGY | | | | | | | | | | 01 | | | | | | Application Examples for Infrared Thermometers | | | | | | 2 o o -J CD e r v CD e 05" o m cu CD e q ni al cq a CTQ CD . | | | | | | | | | | | | | | | | | | | Temperature Range | | Spectral Sensitivity | Application Examples | | | | approx. 0 ... | 800°C | 8 to 14 |jm 3 to 5 |jm 7 to 15 |jm 7 to 18 |jm | All non-metals wood, paper, textiles, floor coverings, asphalt, lime floor, edibles, pharmaceuticals, as well as use with print, coating, laminating, drying/hardening, wave soldering and reflow soldering, for indoor installations, fire control, dust tips etc. | | | | approx. 10 .. | .360°C | nominal 7.9 pm | Fabrication and processing of polyester foil, fluoroplastics, Teflon, acrylate, nylon (polyamide), acetylene cellulose, polyamides, polyurethanes, PVC, polycarbonates. | | | | approx. 260 | ... 1650°C | nominal 5.0/5.2 \im | Surface measurement on glass for heating up, forming, sealing, laminating, bending. | | | | approx. 200 | ... 1200°C | 3.9 | m | Metal finishing, furnaces, melting furnaces, blast furnaces, measurements on thick glass. Measurements slightly influenced by CO2 atmosphere (combustion gases). | | | | approx. 30 .. | . 340°C | nominal 3.43 | m | Fabrication and processing of polyethylene, polypropylene, polystyrene and other foils. | | | | approx. 400 | ... 3000°C | 2 to 2.7 | m | Processing of ferrous and nonferrous metals, induction furnaces, glass production, melting furnaces, lab research. | | | | approx. 200 | ... 1800°C | 1.6 | m | Heat treatment of steel, bending, hardening, warming up. | | | | approx. 500 | ... 3000°C | 1 |jm | Steel production, molten baths, for highest precision with shaping, casting and processing of metals, as well as the processing of glass, | | | | | | | | | | | | | | | | | | | | | | | Compact Glossary of Important Terms | | | | | | | | | | Atmospheric Windows: The wavelength ranges within the infrared spectrum, in which the atmospheric radiation energy is _transmitted and the atmospheric absorption is minimal, approximately 3 ... 5^m and 8 ... 14p.m. | | | | | | | | | | | | | Focal Point, Focal Distance: | Measuring distance where the maximum optical resolution is reached. | | | | Far Field: | Measured distance, which is significantly larger than the focal length of a device, in most cases is larger than ten times the focal length. | | | | Field of View: | The test object area, which is measured by the infrared thermometer; the diameter of the measuring spot is proportioned to the distance from the test object; often also specified as an angular variable at the focal point. Also see optical resolution. | | | | Non-Selective Radiator: | Radiating body with an emissivity that, for all wavelengths, bears the same constant ratio to the emissivity of a full radiator at the same temperature, which is opaque to radiation of infrared energy. | | | | Background Temperature: | From the view of the measuring instrument the ambient temperature or the temperature behind the test object. | | | | Measuring Spot: | Diameter of the test object area, which is subject to a temperature measurement; the measuring spot is defined by the circular area, which typically allows to capture 90% of the infrared energy radiating from the test object to the optical receiving aperture of the measuring instrument. | | | | | | | | | | | | | | | | | Optical Resolution: Also called the distance ratio: The 'measuring distance/measuring spot size' ratio (distance ratio E:M) of an IR measuring spot. The measuring distance is typically defined as the distance from the focal point and the measuring spot size as the diameter of the IR measuring spot measured at the focal point (typically the 90% energy measuring spot diameter). The optical resolution can be also defined for the _far field, by using the values for the measuring distance and measuring spot size within the far field. | | | | | | | | | | Degree of Reflection: Ratio of the radiation energy reflected from a surface to the incident radiation of the same surface; for a _perfect mirror the value is approximately 1, for a full radiator the reflection is zero._ fffiS^nMHHH Full Radiator: Also: black body; ideal radiator. Body, which absorbs the whole impinging radiation energy of all www.ahlborn.com wavelengths and which does not reflect nor transmit any radiation. The surface of a full radiator has a _uniform emissivity of 1._ | | | | | | | | | | 18.03 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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