Research on dust concentration measurement technique and experiment based on charge induction

In order to solve the problem of monitoring dust concentration, the paper applies the charge induction method in the design of the monitoring sensor. Specifically, the dust concentration can be characterized by the induction voltage of the sensor which is located in the high-voltage alternating electric field. In particular, the paper introduces the structure of the sensor and analyses the basic principles and feasibility of the measuring equipment. Furthermore, couples of simulation test is conducted based on the test platform. According to the test results, the monitoring sensor performs well when the dust concentration is between 0.81g/m3 and 1.99g/m3, in which the maximum measurement error is only 1.8%. Undoubtedly, the method used for the dust concentration monitoring has a wide prospect in industrial application.