The Design of Instrument for the Level and Label of Gasoline Measurement Based on AT89C52
A measuring circuit of the level and the label of the oil is concered in this paper.A combinatorial sensor is designed to calculate the liquid level and the dielectric constant at the same time. The calculation is achived by using AT89C52. In the process of the calculation ,arithmetic mean filtering and least-squares method are used to improve the accuracy .The circuit of this system is simple, low power consumption and suitable for using in portable measurement devices.
H. F. A. Han et al., "The Design of Instrument for the Level and Label of Gasoline Measurement Based on AT89C52", Advanced Materials Research, Vol. 429, pp. 142-146, 2012