Detection device

A detection device comprising:

• a sensor substrate including a plurality of strain sensors arranged on a rectangular flexible substrate at fixed intervals in a longitudinal direction of the flexible substrate, wherein
• each of the strain sensors are configured to be selectively connected to a processor device to allow detection of a respective value corresponding to a relative position of a respective strain sensor, and the processor is configured to determine a curvature radius between each pair of adjacent strain sensors among the plurality of strain sensors on a basis of a value from a preceding strain sensor of the pair of adjacent strain sensors,
• a start point node being defined as a position of a first strain sensor at one end of the plurality of strain sensors, the processor is configured to determine a relative position of each of the plurality of strain sensors by sequentially adding the relative positions, starting with the first strain sensor of the start point node on a basis of the curvature radius between adjacent strain sensors,
• the sensor substrate is configured such that a predetermined position, on the flexible substrate, of the first strain sensor of the start point node is configured to overlap with a first position on the flexible substrate between a second strain sensor at an nth node and a third strain sensor at an n+1th node, such that a position of the first strain sensor and the first position are considered to be identical on a relative space, and
• the processor is configured to correct a position of each strain sensor on a basis of a difference between a calculated position of the first position determined by sequentially adding the relative positions and an actual position of the first position.