Patent ID: 7897978
Filing Date: 2011-03-01
Classification: G01C,G01D

Abstract:
1. A tilt sensor device comprising: a body; a first emitter and a first receiver being spacedly disposed on the body, the first receiver being used for receiving a first signal emitted from the first emitter; a second emitter and a second receiver being spacedly disposed on the body, the second receiver being used for receiving a second signal emitted from the second emitter; and an arm rotatably secured on the body, wherein as the tilt sensor device is in a first tilt state, the arm blocks the first receiver to receive the first signal; as in a second tilt state, the arm blocks the second receiver to receive the second signal; and as in a third tilt state, the arm blocks none of the first receiver and the second receiver to receive the first signal and to receive the second signal is respectively.