Dielectric sensor capable of identifying resin flow direction and preparation method and application thereof

A dielectric sensor capable of identifying a resin flow direction, wherein

• the dielectric sensor comprises a top electrode, a bottom electrode, and a composite material layer between the top electrode and the bottom electrode, the bottom electrode is an integrated first electrical conductor in a shape of a continuous pattern, the top electrode is located within an outer contour of the continuous pattern and is divided into an upper region, a lower region, a left region, and a right region, the upper region, the lower region, the left region, and the right region are respectively provided with second electrical conductors, the number of the second electrical conductors in the upper region is different from the number of the second electrical conductors in the lower region, the number of the second electrical conductors in the left region is different from the number of the second electrical conductors in the right region, and the second electrical conductors in the same region are arranged at intervals,
• a first wire connects the second electrical conductors in the left region and the second electrical conductors in the right region to form a first signal channel, and a second wire connects the second electrical conductors in the upper region and the second electrical conductors in the lower region to form a second signal channel, and
• the first wire and the second wire are perpendicular to each other.