RESEARCH ON MOISTURE CONTENT MEASURING DEVICE OF EDIBLE OIL BASED ON CAPACITANCE DETECTION MECHANISM

摘要

Illegal trader adulterate water with edible oil to sail, it is important to detect the water content of edible oil. This design uses the principle of capacitance method to measure water content of edible oil to design detection system. The core of method is according to permittivity difference between oil and water is large, resulting in a capacitance value of the dielectric oil and water when the capacitive principle of the sensor is very different. The water content of edible oil detection system has advantages of high speed, low power consumption, low price and portable. Laboratory test shows that the water content of edible oil detection system has the ability to accurately measure the conductivity message of the oil, and system measurement accuracy can meet the needs of water adulteration with edible oil detection.