Author(s): Qin Jian-Min; Cheng Peng; Zhao Bao-Fen; Du Yu; Li Xia; Zhou Jian-Zhen; Li Zhi-Jun
Linked Author(s): Zhijun Li
Keywords: Physics characteristic; Resistance; Capacitance; Thickness of ice layer; Sensor
Abstract: As water freezes into ice (or as ice melts into water), great changes will take place in its physical parameters such as (electric) resistance, electric capacity and temperature. The value of these parameters can also be distinguished from those in the air above the ice surfaces that are under detection. According to the aforementioned features, the author of this paper proposed a new theoretical framework of measurement on ice-thickness and beneath-ice-surface water levels by distinguishing the physical characteristics of air, ice and water. The result of field-course data analysis revealed a series of interesting conclusions such as ice as a weak conductor, capacitance interval monotonicity of air, ice and water, and the jumping point of electric capacity under unique temperature, etc. Based on these results, the author introduced the design of the structure of a new-type of ice-thickness sensor, its measurement method, and its field-application in automatic measurement on ice thickness.
Year: 2008