| 摘要 |
A ground vibration liquid detector has a body with source of coherent light attached to the body and with photo-sensitive matrix that is connected to measuring device. The body is arranged as evacuated and thermo-insulated, of opaque material of black color, for instance, plastic. At beneath to the bottom of the body a prop with hinge is attached. The body has elongated rectangular form with flat bottom that is covered with thin flat layer of seismo-sensitive black liquid and with small coefficient of surface tension, for instance alcohol. In the far parts of the bottom wave dampers are placed. Source of coherent beam and photo-sensitive matrix are attached at opposite far sides of the body with inclination in such way that angle of incidence of beam reflected from liquid to matrix is equal to 90°. |
