Needle-type oxygen micro-sensor NTH is the miniaturized fiber optic chemical sensor designed for all research applications were a small tip size from 50 μm to 140 μm and fast response time (typ. 1 sec) are necessary. Needle-type oxygen micro-sensors are ideal for animal physiology or for oxygen distribution profiling in sediment or biofilms with micro-manipulators, and with a high spatial resolution (50 μm). The oxygen-sensitive tip of an optical fiber is protected inside a stainless steel needle. Such a design is the best for an easy penetration through a rubber septum or any other harsh material as well as for transportation. The fiber tip with its oxygen-sensitive coating has to be extended out of the steel needle for measurement. Fiber cables with a length up to 10 m and an outer diameter of 0.9 mm are available. If you need a more robust cable (OD 3.1 mm) or a cable length of more than 10 m (maximum 60 m), please contact us.
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