| 摘要 |
The present invention is aimed at measuring accurately. In an intact state, the weight of powder of particularly low bulk density which fluctuates widely in response to a slight external force. The invention relates to a weight measuring method and apparatus the essential points of which are that the flow pattern of powder flowing by air continuously is standardized by a high pressure fan and, at the same time, on the wall of duct communicating with said high pressure fan, an irradiation ray projector and a radioactive ray detector are oppositely disposed. A control circuit, consisting of an indicate controller, a converter, a ratio setter and an isolator and connected to said radioactive ray detector, provides continuous measuring of the weight of air-flowing powder and enables the subsequent control of various working processes proportionately to said detected weight.
|
