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Latest News
21 November 2024
Stock Sale: Discounted IR Cables Available Now!

art photonics is excited to announce a special stock sale featuring discounted prices on our IR fibers and cables. These high-performance products are ideal for a variety of applications in spectroscopy, process monitoring, and industrial solutions. Take advantage of reduced pricing on the following IR fiber cables, available for immediate shipment: All products in this […]

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2 November 2024
Join Our Team: Sales Manager Position Open at art photonics

art photonics GmbH is thrilled to announce an exciting career opportunity! We are looking for a motivated and experienced Sales Manager to join our team and drive growth in the European market. As a Sales Manager, you will play a key role in managing and developing customer relationships, with a focus on optical probes for […]

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Latest Events
19 November 2024
Herbstkolloquium Prozessanalytik 2024 | 4–6 December 2024, Merck Darmstadt, Germany

art photonics GmbH is proud to announce its participation in the 19th Herbstkolloquium Prozessanalytik, taking place from December 4–6, 2024, at Merck Darmstadt. We will be showcasing our innovative fiber spectroscopy solutions for in-line process control at Booth №1, including: Additionally, our colleague Andrea Teuber will deliver a presentation, providing insights into the role of […]

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11 November 2024
PIA 2024 | 19-21 November, 2024, Singapore EXPO, Singapore

Join art photonics at PIA 2024 in Singapore! art photonics GmbH, in collaboration with our partner tec5 AG, will be exhibiting at Booth E07 at Process Innovation Asia-Pacific (PIA) 2024. We invite you to visit us to explore our advanced fiber optics technologies for in-line process control. Our Fiber Optic Probes are specifically designed to […]

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About Our Company
art photonics GmbH, founded in Berlin in September 1998, is one of the worldwide leaders in development and production of specialty fiber products for a broad spectrum from 300 nm to 16 µm. Unique technologies of Polycrystalline Mid InfraRed (PIR-) fibers and Metal coated Silica fibers are used for assembly of various spectroscopy probes for medical diagnostics and industrial process control, in volume production of fiber for medical and industrial lasers, for different fiber bundles, etc. Since January 2024 art photonics GmbH is a member of NYNOMIC GROUP.
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Mid-Infrared Spectroscopy for Monitoring of Anaerobic Digestion Processes - Prospects and Challenges

Posted on: 
27 March 2018

To develop an online probe that is not only sufficiently robust, but also able to measure crucial process variables in biogas plants is a tough challenge. Therefore, a mid-infrared (MIR) spectroscopic attenuated total reflection (ATR) probe and robust probe fitting were established. A fully automated probe control, calibration after probe cleaning, and analysis of the absorption spectra using machine learning were implemented in order to reduce maintenance of the probe to a minimum. The relevant wavelengths in the MIR spectrum for organic acids, total alkalinity, and ammonium nitrogen concentration were identified. Finally, intensive lab testing was carried out, followed by operation of the complete online measurement system at an industrial biogas plant. In order to improve signal strength and sensitivity, microelectronic mechanical system (MEMS)-based Fabry-Pérot interferometers were also investigated.

https://onlinelibrary.wiley.com/doi/full/10.1002/ceat.201500334

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