| 摘要 |
PURPOSE:To sensor generated vibration securely and rapidly by eliminating directivity in vibration sensing by integrally forming containers partitioned by running and fixing a coupling lever, sealing a spherical body for vibration sensing in a free movement state, and detecting a contact sound. CONSTITUTION:A sensing container 1 is constituted by a connecting bowl-shaped containers 1a and 1b at their opening edges and thus making those containers 1a and 1b into one container 1 with an inserted coupling lever 2. In the internal space A of the container 1, a ball 8 as a sensing body for vibration is sealed in a free rolling state, and a sound of collision between the ball 8 and the internal circumferential wall surface of the container 1 or lever 2 is sensed by a microphone 9 added on the external circumferential surface of the container 1. |
