| 摘要 |
A curved shape sensor to detect a curved shape of a measured object includes a light source to emit detection light, an optical fiber to guide the detection light, a detection part provided at a portion of the optical fiber, a rotation suppressing member fixed to the optical fiber, and a light detection unit to detect the detection light traveling through the optical fiber. The measured object includes a tubular member having flexibility so as to be curved, and an incorporation member located inside the tubular member. The detection part changes characteristics of the detection light in accordance with a change in a curvature of the optical fiber. The rotation suppressing member is located within a space defined by the tubular and incorporation members with being in contact with them, so as to suppress rotation of the optical fiber. |
| 主权项 |
1. A curved shape sensor to detect a curved shape of a measured object, comprising:
a light source to emit detection light; an optical fiber to guide the detection light; a detection part provided at a portion of the optical fiber; a rotation suppressing member fixed to the optical fiber; and a light detection unit to detect the detection light traveling through the optical fiber, the measured object including a tubular member that has flexibility so as to be curved at least in one direction, and an incorporation member located inside the tubular member, the detection part changing characteristics of the detection light passing therethrough in accordance with a change in a curvature of the optical fiber, and the rotation suppressing member being located within a space defined by the tubular member and the incorporation member with being in contact with the tubular member and the incorporation member, so as to suppress rotation of the optical fiber. |
