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Latest News
6 September 2023
Celebration of 25 Years at art photonics!

Take a peek into our unforgettable 25 Year Anniversary event! On August 24th, we gathered with cherished colleagues, valued partners, and loyal customers to mark this incredible milestone. It was a day filled with camaraderie, joy, and a festive spirit that lit up the room. The event kicked off with insightful presentations from our esteemed […]

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2 August 2023
Invitation to Celebration of 25 Years of Excellence at art photonics!

We are thrilled to announce the commemoration of our 25th Anniversary, marking a quarter-century of leadership in the field of optical fiber innovations. Since our inception, we have been dedicated to empowering industries with cutting-edge solutions in process analytical technology, medical, petrochemical, and beyond. Throughout the years, our commitment to excellence has driven us to […]

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Latest Events
20 September 2023
EPIC Technology Meeting on Photonics for Bio and Life Science | 26-27 Sep, 2023, Baden, Switzerland

Join us at the EPIC Technology Meeting on Photonics for Bio and Life Science in Baden, Switzerland, scheduled for September 26-27. Explore how fiber optics can transform your process control and spectroscopic measurements, even within bioreactors. Don't miss the presentation by our CEO and President, Viachselav Artyushenko, titled "Fiber Spectroscopy for In-Line Process Control (0.3-16 […]

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13 September 2023
14th ECCE and 7th ECAB 2023 | 17-21 September, Berlin, Germany

Join us at the 14th ECCE and 7th ECAB 2023 conference in Berlin, Germany, from September 17th to 21st. Discover the incredible potential of fiber optics in remote spectroscopy and process control, including applications within bioreactors! Mark your calendar for our CEO & President, Viachselav Artyushenko's, insightful presentation titled "Fiber Spectroscopy for Process-Control in-line in […]

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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.

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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