The sensor was designed for applications ranging from weld monitoring and control to turbine engine service and design. The sensing element is a monolithic glass fiber and is as stable as the silica glass. It is not reliant on any moving parts or coatings and the sensor packaging can be tailored to suit the application needs.
The Helica Temperature Sensor is based on Chiral Photonics' patented chiral grating, which is fabricated by twisting, or microforming, the fiber as it is passed through a miniature heat zone to produce a distinct dip in the transmission spectrum. The spectral position of the dip in this chiral fiber changes with temperature allowing it to be used as a temperature sensor.
Dan Neugroschl, Chiral Photonics' CEO told that the customers have been enthusiastic about this monolithic glass solution which does not rely on photoinduced gratings or coatings or moving parts, thereby offering the reliability inherent to glass.
Specifications:
Temperature Range: Up to 1000°C
Accuracy: 1% - Sensitivity : 0.01 nm/°C (nominal)
Probe (metal sheathing) Length: 300 mm standard
Other lengths available upon request
Sensor/Grating Length: 15 mm - Other lengths available upon request
Sensor Placement: 25 mm from probe tip
Connector Type: FC/APC
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