| 摘要 |
An inclination detector includes: a casing; a light source installed in the casing; a reflector being suspended with a suspender to be at a certain position in the casing and reflecting a light beam from the light source to a direction different from a light axis direction; and a detector that outputs a signal corresponding to a projected position of the light beam, and an inclination of the casing is detected based on the projected position of the light beam reflected by the reflector.
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