| 摘要 |
<p>PURPOSE:To make it possible to detect fluctuation precisely by providing acceleration sensors on a video cylinder, and obtaining an angular velocity acting on a main body. CONSTITUTION:Pizoelectric elements 1a and 1b are provided on a video cylinder 2 as acceleration sensors. During a video device is in operation, turning motion is performed by the rotation of the cylinder 2. Under this state, when coordinate system which regulates the rotation of the cylinder, i.e. the main body of the video device, undergoes inertial rotation around an axis which is perpendicular to the rotary angle of the cylinder, acceleration acts on the axis of the rotating direction of the cylinder with respect to the elements 1a and 1b owing to the interaction between said inertial rotary motion and the turning motion. Acceleration signals matching said acceleration are generated in the elements 1a and 1b. The acceleration signals are inputted into a signal processing circuit 3 through a slip ring 4 and a brush 5. In the circuit 3, a detected fluctuation signal in proportion to the fluctuation of the main body of the video device is outputted.</p> |
