Title :
Ionic-Gel-coated fabric as flexible humidity sensor
Author :
Takei, Yusuke ; Matsumoto, Kiyoshi ; Shimoyama, Isao
Author_Institution :
Univ. of Tokyo, Tokyo, Japan
Abstract :
We fabricated flexible humidity sensor which responds 10 times faster than commercial CMOS humidity sensor. Our sensor is based on Ionic-Gel-coated Fabric (IG-Fabric). We use EMIMBF4 as ionic liquid and mixed with PVDF to fabricate ionic gel. The EMIMBF4 has a characteristic that it absorbs H2O and changes its impedance. IG-Fabric has wide surface area and high gas permeability so that gases can be easily absorbed and detached. This sensor has many applications such as flu-mask-type human breath sensor, wearable humidity sensor.
Keywords :
CMOS integrated circuits; coatings; fabrics; gels; humidity measurement; humidity sensors; EMIMBF4; IG-fabric; PVDF; flexible CMOS humidity sensor; flu-mask-type human breath sensor; gas permeability; ionic-gel-coated fabric; wearable humidity sensor; Fabrication; Fabrics; Humidity; Impedance; Liquids; Temperature measurement; Temperature sensors;
Conference_Titel :
Micro Electro Mechanical Systems (MEMS), 2015 28th IEEE International Conference on
Conference_Location :
Estoril
DOI :
10.1109/MEMSYS.2015.7051075
