| 摘要 |
PROBLEM TO BE SOLVED: To provide a monitoring apparatus capable of accurately grasping a state of an inner surface of a hole and advantageous for achieving simplifying a facility and reducing a burden for working.SOLUTION: An illuminator 12 illuminates an inner surface of a hole 2. An imaging device 14 images the inner surface of the hole 2 and generates an image signal. Each transmitting/receiving unit 16 irradiates the inner surface of the hole 2 with a transmission wave W1, receives a reflected wave W2 reflected on the inner surface of the hole 2 and generates a receiving signal. A tip of a suspending lope 22 is connected to a holding member 20 to suspend a measurement unit 30 from upward of the hole 2. While satisfying inner space of the hole 2 with air, the inner surface of the hole 2 is illuminated by the illuminator 12, and while displaying the inner surface of the hole 2 imaged by the imaging device 14 on display means 34, three-dimensional shape data generation means 40 generates three-dimensional shape data indicating a three-dimensional shape of the inner surface of the hole 2 on the basis of the receiving signal detected by the transmitting/receiving unit 16.SELECTED DRAWING: Figure 2 |
