| 摘要 |
<p>The invention relates to a method of measuring or detecting an unkown distribution and content of solid material in a flow of liquid and gas, without any calibration. One or several activated probes emitting radiation are used. The radiation is measured by a detector on the outside of the pipe. Each probe emits radiation only to one detector. The probes are mounted apart both lengthwise and across the pipe section. The probes are mounted with an angle α to the fluid flow, 20° < α < 60°. Without any signal analyses, the probes will register whether the fluid flow contains solid material if the thickness is reduced 0.1 %. The particle content is calculated with a 0.25 % thickness reduction. The amount of the particles impinging the probes can be calculated.</p> |
