LMAI conference 16 to 18 July 2022 in Jaipur

February 02, 2022 Post a Comment

Oxyspot from WittOptical measurement of oxygen in packagingThe new production serial Oxyspot from Witt makes information technology possible to determine the oxygen content in packaging quickly and precisely but using light. Using a special optical sensor, the German gas applied science specialist is offer a modern and powerful alternative for the quality control of oxygen-sensitive products. Depending on the application, Oxyspot is bachelor in three versions – dot, needle and line.
Oxyspot is equipped with a new type of optical sensor, which measures the concentration of oxygen in rigid or flexible packagingOxyspot is equipped with a new type of optical sensor, which measures the concentration of oxygen in rigid or flexible packaging. "The measurement is extremely precise and fast," states Alexander Kampschulte, caput of marketing at Witt. The manufacturer is offer an accurateness of +/- 1% in the measurement range of 0 to 5% oxygen or +/- 2% in the measurement range of 5 to 25%.

Principle of optical fluorescence
The measurement is done using the principle of optical fluorescence, and basically comprises three components – an LED, a dye carrier (dot) and a photodiode. The dot is stimulated past the LED. The colour layer absorbs the low-cal free energy and emits this again with a fourth dimension lag. The photodiode determines the oxygen concentration from the emitted light energy. "Depending on the oxygen content, more or less lite is reflected back. The more the oxygen molecules, the lower the return beam free energy," explains Kampschulte.

Three Oxyspot versions are available and embrace a wide application field – from non-destructive analysis for long-term observation, random sample analysis of small-volume packaging through to continuous in-line monitoring of packing processes. In the Oxyspot dot version, the measurement does not involve any contact and is hence not-destructive. The small dye carrier is bonded in the packaging, only tin can also exist integrated every bit a fixed component. Every bit gas is not consumed, this type of device is suitable for long-term observations and shelf-life trials. If the device is installed permanently on the packing line, automated remainder oxygen testing of the entire production is likewise possible.

Minimal gas volume
For the random sampling of products with very irregular or light-impermeable surfaces, Witt has adult the variant Oxyspot needle. All of the fundamental components are focused here in a fine needle that is introduced into the product. The determined values are sent to the device via a glass fibre cable. The analysis is carried out directly at the measurement site. At that place is no demand to take a gas sample. Kampschulte says, "Even the smallest packaging with minimal gas volume, such as coffee capsules or blister packages and vials in the pharmaceutical industry can at present be tested."

In-line testing
Oxyspot is controlled via a conventional PC using a USB cable. Special software allows automated reporting and evaluation of measuring data. Measurements tin can be visualized graphically in the real time exported for processing with MS Excel and for archiving. That means all measurements effected for quality assurance tin be validated at whatever time. On request, Oxyspot tin can besides be operated with a tablet PC via Bluetooth, for case, in mobile applications. Oxyspot line is available for the in-line testing of tubular bags – the measuring system is integrated into the packing machine via a lance plus glass fibre cable. The oxygen content can be monitored automatically during the packing process. Here as well, no gas is consumed for analysis. The new analyzer is supplied together with software and a USB cablevision in a practical instance. The Oxyspot dot version comes with a loftier-quality table stand made from stainless steel. With the new device series, Witt is extending its broad range of analysis systems for quality command.

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