Infrared Sources EMIRS200
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axetris Company of the Leister Group Swiss made

Axetris infrared (IR) sources are micro-machined, electrically modulated thermal infrared emitters featuring true black body radiation characteristics, low power consumption, high emissi-vity and a long lifetime. The appropriate design is based on a resistive heating element deposited onto a thin dielectric membrane which is suspended on a micro-machined silicon structure. The sources are packaged in compact cans and are available with protective cap or with reflector. They can be fitted optionally with Sapphire, CaF2, BaF2 or Germanium broadband filters. Axetris IR sources are ideally...

Technology highlights • True black body radiation (2 to 14 pm) • High emissivity • Fast electrical modulation (no chopper wheel needed) • High modulation depth • High electrical input to optical output efficiency • Low power consumption • Long lifetime • Rugged MEMS design (passed the requirements of IEC 60721-3-7 Class 7M3, except for BaF2 and CaF2 broadband filters) Measurement principles • Non-Dispersive InfraRed spectroscopy (NDIR) • Photo-Acoustic Spectroscopy (PAS) • Attenuated Total Reflectance spectroscopy (ATR) Target gases CO, CO2, VOC, NOx, NH3, SOx, SFe, hydrocarbons,...

Product Portfolio Type EMIRS200 TO-39 Chip on Header TO-39 *WD (top of refl.)/ Broadband Cap / Power in filter Reflector Measurement principles/ Typical application Product photo Customized Products Custom Custom NDIR, PAS / STD absorption cells NDIR, PAS / STD absorption cells NDIR, ATR / STD absorption cells NDIR, ATR / Short absorption cells NDIR, ATR / Long absorbtion cells 0 10 mm NDIR, PAS / STD absorption cells NDIR, PAS / Customer specific absorption cells NDIR, PAS / Standard absorption cells NDIR, PAS / Standard absorption cells NDIR, PAS / REF W57-50-M-00 Standard...

The on-time state defines the power limitation not the average power. The real values can slightly differ from the shown numbers.

Benefits • True black body radiation (wavelength from 2 μm to 14 μm) Microscopic image of the MEMS chip packaged on a TO39 header (left). Temperature distribution of the heated membrane (right). • High emissivity A unique thin film process creates a pure black body structure with emissivity close to 1. Black dendritic surface structure • Fast electrical modulation and high modulation depth MEMS technology offers the possibility to achieve thin and low-mass membrane with short time constant, enabling IR-source to be modulated at high frequency with high modulation depth. Front and backside...

• High electrical input power to optical output efficiency Due to the black surface, the IR source has excellent electrical to optical conversion efficiency. The black body surface guarantees maximized emissivity while the thin membrane is responsible for optimized heat flux. Efficiency optimization by heat flux simulation. • Reliability of the MEMS structure The semiconductor MEMS manufacturing technology guarantees high reliability and quality of the IR sources. In addition to the strict quality control system during wafer-level manufacturing, every single IR source is subjected to a...

Benefits of broadband filters • Complements detector filter • Eliminates background signal and improves S/N ratio • Protects the IR source in harsh environments • Prevents parasitic influence of the sample gas (for tightly sealed broadband filter installation) Application specific design options Axetris offers customized IR sources. Packaging, reflector designs and filter types can be configured for OEM customers to meet their specific product needs. The reflector for example, optimizes the angular distribution of radiation and, therefore, the optical signal. Custom Reflector • Optimization...

Main Measurement Principles Non-Dispersive InfraRed (NDIR) principle Non-Dispersive InfraRed spectroscopy utilizes a broadband infrared 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 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. gas concentration...

IRS LabKit • Faster and easier design-in of Axetris IR Source • Very efficient tool for evaluating the ideal drive mode for achieving the best signal/noise ratio • Quick and easy start-up and measurement within minutes • Includes everything you need • Simple Graphical User Interface (GUI) based on LabVIEW software • Set and update all drive parameters live from the GUI • Live diagram plots for data display and recording • Visualized drive mode limitations (recommendations) • Export of bitmap and Excel data • Direct connection to a PC with RS232 protocol and USB • TO socket and connector for...

Axetris serves OEM customers with micro-optical components, micro technology-based (MEMS) infrared light sources, mass flow meters and controllers, and laser gas detection modules used in industrial, telecom, environmental, medical, analytical and automotive applications. Our multi-disciplinary and highly skilled engineering and manufacturing teams combine broad experience in design, manufacturing and metrology from MEMS components to advanced optical and electronic sensor modules. Axetris supports its customers with in-depth application know-how. Customers benefit from excellent product...