A Development of Detection System on Acid Value of Lubricating Oil Based on Impedance Method

摘要

Acid value is one of the most important indexes in the detection of lubricating oil, the testing of which has been widely used in the corrosive and quality characterization of petroleum products. So far there is no widely adaptive method and instrument faced with acid value. By the use of impedance method, this paper has used AD5933 to establish a detection system on acid value and achieve detection without chemical and judgment. Convenient setting of parameters and processing and storage of data are realized by the virtual instrument technology. Based on serial communication and virtual I2C communication, timely two-way traffic of statistics is achieved. The checkout of the system is accomplished by the known impedaffce. According to GB on the test of acid value, through the preparation of oil samples, the feasibility and operability of the system are justified and the best test conditions are determined.