Infrared Sources
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Infrared Sources

Infrared Sources Overview Axetris infrared (IR) sources are micro-machined, electrically modulated thermal infrared emitters featuring true black body radiation characteristics, low power consumption, high emissivity and a long lifetime. The design is based on a resistive heating element deposited onto a thin dielectric membrane which is suspended on a micro-machined silicon structure. Axetris IR sources are ideally suited for compact IR gas detection modules where high emissivity, high reliability and low power consumption are key requirements.

Infrared Sources Product Overview Axetris MEMS-based infrared sources are modular and can be operated at high modulation frequencies. Their true blackbody radiation ensures high emissivity for a wide spectral range from 2 to 15 μm. Thanks to its chip size, the Axetris EMIRS200 infrared source is particularly well-suited for applications in which high emission performance is important. Detecting gases with absorption in the higher wavelengths, such as refrigerants or a nesthetic gases, plays to the strengths of EMIRS200. Benefits at a glance: high optical emission power, especially at...

Infrared Sources Main Measurement Principles Non-Dispersive Infrared (NDIR) principle Non-Dispersive Infrared spectroscopy utilizes a broadband IR source covering the entire wavelength spectrum needed to measure a large variety of gases. The specific wavelengths desired to measure the gas(es) of interest are selected with narrow band pass filters. The radiation is absorbed by the gas molecules resulting in a signal decrease which is proportional to the gas concentration inside the sample volume. Thermopiles or pyroelectric detectors are commonly used for this spectroscopy technique. IR...

Infrared Sources Thermal Infrared Emitters For thermal light sources, the emitted power and the emission spectrum directly depends on the temperature of the emitter. The higher the temperature, the higher the total output power and the shorter the w avelength of the radiation maximum. Thermal infrared sources commonly used in gas measurement emit broadband radiation in the near to mid infrared, i.e. approximately from 2 to 15 µm. The principle of gas measurement through radiation is based on the fact that radiation interacts with matter. Depending on the wavelength and the associated energy...

Infrared Sources Axetris offers a micro-machined, electrically modulated infrared source, a so-called MEMS-based IR source. Of course, there are alternatives available on the market. These include wire-wound and filament-based IR sources as well as light-emitting diodes (LEDs). Depending on their design and manufacturing process, these types differ not only in their construction, but more importantly in their advantages and disadvantages. Some sources claim an advantage in price but are not satisfactory in terms of their bandwidth and drift behavior. Only MEMS-based IR sources are designed...

Infrared Sources Axetris EMIRS Advantages Modulation depth All Axetris EMIRS infrared emitters are micro-machined and are based on MEMS technology. This results in an unmatched low thermal mass of the platinum layer and the entire chip which allows high modulation rates. Modulation frequencies of up to 100 Hz (EMIRS50) or 50 Hz (EMIRS200) with very steep rise and fall times are possible. Axetris infrared sources are therefore ideally suited for processes and applications where real-time resolution is critical. In addition, direct modulation of the IR source eliminates the need for...

Infrared Sources Robustness and durability against vibration and shock, rugged MEMS Design The mechanic design of Axetris EMIRS chips is very resistant to vibration and shocks. In addition, the chip is fixed with elastomeric adhesive to compensate for mechanical stress. This combination allows the chip to be used even under the toughest conditions. All Axetris EMIRS products are tested according to DIN EN 60721 (shock and vibration) as well as various environmental stress tests. Thanks to the robust design of Axetris infrared sources, they have been used on the Bepi-Colombo mission to...

Infrared Sources IRS LabKit Quickly and easily test the compatibility and drive parameters of Axetris IR sources and matching detectors with the LabKit. The Axetris IRS LabKit is perfect for testing and eval uating EMIRS infrared sources. Multiple sources can be purchased and characterized with the LabKit. This allows for quick testing when electronics are not yet available. In combination with a detector, the optimal drive parameters for the entire EMIRS portfolio can be selected. Continuous data recording allows analysis and optimization of the behavior of the IR source and the overall...

Infrared Sources Your Trustworthy OEM Partner Technical customer support and application/integration know-how Do you have a technical issue or a complaint about the IR source you received? Are you looking for the right product for your measurement task? Do you have different specification requirements, or do you need help integrating our IR sources? Our team of engineers has broad application know ledge and supports you in finding the right product for your needs. Optical simulations As an experienced manufacturer of IR sources, Axetris can not only help with advice on the right products....

About Us Axetris serves OEM customers with micro-optical components, micro technology-based (MEMS) infrared light sources and laser gas detection modules used in industrial, telecom, environ mental, medical, analytical and automotive applications. Contact SWITZERLAND Axetris AG (head office) 6056 Kaegiswil +41 41 662 76 76 info@axetris.com www.axetris.com At Axetris a highly qualified team of engineers and manufacturers combine their broad experience in design, manufacturing and metro logy from MEMS components to advanced optical and electronic sensor modules. Axetris supports customers...