| 摘要 |
PROBLEM TO BE SOLVED: To provide a small-sized capacitance particulate measuring device with high accuracy, high sensitivity and high response speed which is easy to manufacture. SOLUTION: The device comprises cylindrical electrodes 1a and 1b for forming a capacitance to cut a passage of a powder in round slices. The diameter of the cylindrical electrodes, the distance between the electrodes and the diameter of a guard electrode are set to appropriate dimensions, whereby difference in change of capacitance depending on place of the powder passing between the electrodes can be minimized to realize higher accuracy. COPYRIGHT: (C)2007,JPO&INPIT
|
