In order to improve the wireless signal transmission performance of passive pressure sensor, a passive pressure sensor structure was fabricated based on epoxy resin. The wireless test device of this sensor consists of resonant capacitance cavity and induction antenna, which requires neither physical contact nor a battery power supply for signal communication. The wireless signal transmission performance was studied by changing the thickness, width and other factors of the antenna metal layer of the pressure-sensitive structure. Experimental results show that the quality factor Q of inductance affects signal transmission of the sensor. Increasing the thickness of metal layer and the line width of inductance can reduce the resistance of inductance and further increase the Q value of the sensor, which will be beneficial to wireless signal transmission.
|Original language||English (US)|
|Number of pages||5|
|Journal||Nami Jishu yu Jingmi Gongcheng/Nanotechnology and Precision Engineering|
|State||Published - Sep 1 2012|
- Passive pressure sensor
- Q value
- Wireless signal transmission