Measurement device, measurement method, and manufacturing method for measurement devices

A measurement method, comprising:

• measuring, by a measurement device, measurement data including one or more selected from strain, temperature, or vibration on the slope,
• wherein the measurement device includes a measurement part including:
• an optical fiber arrangement part having a planar shape and arranged along a surface of the slope;
• and a scattered light measurement device,
• the measurement part includes:
• an optical fiber arranged in the optical fiber arrangement part;
• and a longitudinal protective material, at least a part of the optical fiber being arranged along the longitudinal direction of the protective material, and a part of a surface of the optical fiber being covered with the protective material,
• the optical fiber is connected to the scattered light measurement device, and
• in the measurement process, the measurement data on the slope along the longitudinal direction of the optical fiber is measured by oscillating scattered light emitted into the optical fiber from the scattered light measurement device.

A manufacturing method for measurement devices, comprising:

• arranging an optical fiber along the surface of the slope to form an optical fiber arrangement part having a planar shape;
• and
• recording the position of the optical fiber in the optical fiber arrangement part,
• wherein the optical fiber arrangement part further includes a longitudinal protective material, and
• at least a part of the optical fiber is arranged along a longitudinal direction of the protective material, and a part of a surface of the optical fiber is covered with the protective material.