Our new sensor has been developed for use in the medical field. He is sensitive enough to
measure the pressure inside the lungs during breathing. Usually it changes by several kilopascals. Hwa-Yau Tam, employee, Hong Kong Polytechnic University
The sensor can be used for various medical applications, since, in addition to being biocompatible, its fiber is chemically inert and insensitive to moisture.
The goal of the authors of the work, they said, is to use their development for monitoring various parameters - pressure, temperature inside animals and people.
Optical fiber used for manufacturingThe new sensor is made from an advanced polymer called Zeonex. This material is not only chemically inert and performs well in aquatic environments, but is also more sensitive than silica fibers.
Tests have shown that the sensor can be usedfor measuring low pressure up to 50 kilopascals above or below atmospheric pressure with a resolution of 2.0 kilopascals. The pressure measurement sensitivity is increased by 80% compared to a traditional polymer based sensor.
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