Contact angle measuring device

According to the contact angle measuring device, the sealing cavity is formed, the mounting part with the adjustable position is arranged in the sealing cavity, the mounting part is used for mounting the slice, the sealing cavity can be filled with water, then oil drops are injected through the oil inlet of the sealing cavity, the oil drops float upwards to the slice in water, and after the shape of the oil drops on the slice is stable, the oil drops on the slice are separated from the oil drops. And shooting pictures of the oil drops on the slices through shooting equipment, and then analyzing the pictures shot by the shooting equipment through control equipment so as to obtain the contact angle. When the slice is perpendicular to the axial direction of the oil inlet, the contact angle measuring device is used for measuring the static contact angle of the oil drop; and when the position of the mounting part in the sealing cavity is adjusted to enable the slice to be not perpendicular to the axial direction o