A UHF RFID tag applied for a liquid detection sensor is presented. The liquid can be detected easily via a maximum range of the proposed tag antenna. The proposed application is based on the UHF RFID for the Thailand standard with the operating frequency from 920 to 925 MHz. It is obvious that liquid can be monitored and its accuracy is relatively accurate comparison with the results from the simulation. The proposed solution can be applied for approximation the liquid detection with appropriated accuracy.
（英）
A UHF RFID tag applied for a liquid detection sensor is presented. The liquid can be detected easily via a maximum range of the proposed tag antenna. The proposed application is based on the UHF RFID for the Thailand standard with the operating frequency from 920 to 925 MHz. It is obvious that liquid can be monitored and its accuracy is relatively accurate comparison with the results from the simulation. The proposed solution can be applied for approximation the liquid detection with appropriated accuracy.