| 摘要 |
The present invention relates to a motion sensor or absolute inclinometer capable of measuring biaxial gradients at the same time by calculating coordinates of a pixel, of which light is detected from an image sensor or photodetector array, since the basic principle that the center of a freely vibrating pendulum always heads for the direction of gravity is applied, the image senor or photodetector array is installed in the bottom when the present invention is formed into a cylindrical shape, and an LED pendulum is installed in the top with damping, the modulus of elasticity, and weight. The gradient and motion sensor always accurately and stably obtains a measured value as the sensor fundamentally does not have a drift by time and temperature by directly obtaining a gradient in a digital value, not an analogue value, unlike a gyro sensor, an acceleration sensor, or tilt sensor. Therefore, the present invention is capable of being applied to a structure safety diagnosis field in which a sensor is installed in a tough correction position and a facility, having a large dynamic range of an external environment, such as construction or civil engineering. |
