| 摘要 |
PROBLEM TO BE SOLVED: To realize an injection control system by which the level of an object can be measured easily even when the object exists just above a hopper. SOLUTION: In this injection control system, two or more raw materials are mixed by using a hopper, and a product which is created by their mixing is injected to a feed destination. A laser level gage which radiates light from an oblique direction toward a substance filled into the hopper and which can measure a distance is used. The level of the substance filled into the hopper is measured on the basis of the distance measured by the laser level gage and the angle of inclination of the light emitted from the laser level gage. |
