| 摘要 |
<p>A clinometer (1) includes a cylindrical cavity having a conductive cylindrical wall (12) and a vertical annular wall having a high resistance resistor uniformly distributed thereon. A freely moving, heavy conductive ball (20) seeks the lowest point in the cavity. The conductive ball contacts both the conductive cylindrical wall and a point along the resistor (14A), thereby defining the resistance between a terminal connected to one end of the resistor and another terminal (16) connected to the conductive cylindrical wall (12). This resistance is a function of the inclination of the clinometer. A reference voltage is applied to the end terminal of the resistor. The terminal (16) connected to the conductive cylindrical wall (12) is coupled to a circuit (33) that converts a voltage across the resistance into a digital voltage that represents the inclination of the clinometer.</p> |
