| 主权项 |
1. A current measurement device for measuring current flowing in a composite material containing conductive fibers, the current measurement device comprising:
a temperature measuring unit that measures a temperature of a surface of the composite material, upon a flow of current in the composite material; a storage unit that stores conversion data that is acquired through a preliminary test carried out beforehand and that results from converting the temperature of the composite material surface to a value of current flowing in the fibers in the composite material; and a current calculator that, on a basis of the conversion data stored in the storage unit, converts the temperature of the composite material surface, as measured by the temperature measuring unit, to a value of current flowing in the fibers in the composite material, wherein the composite material comprises a laminate resulting from layering a plurality of fiber layers including fiber layers having mutually dissimilar fiber directions, the laminate being penetrated by fasteners of fastening pieces, wherein the conversion data is acquired in each fiber direction, in the preliminary test, through a measurement of temperature and current values in respective fiber directions centered on a current-applying electrode at a time of application of current to a specimen of a material identical to the composite material, wherein the temperature measuring unit measures the temperature of the composite material surface in respective fiber directions centered on the fasteners, and wherein the current calculator converts the temperature of the composite material surface in each fiber direction, as measured by the temperature measuring unit, to a current value by using the conversion data in the corresponding fiber direction. |
