MEASURING ASSEMBLY FOR MEASURING LIQUIDS
The aim of the invention is to increase the measuring precision of an electric measuring assembly (1) for capacitively measuring a liquid, comprising an inner electrode (2) and an outer electrode (3)arranged concentrically to the inner electrode. This is achieved in that a shielding electrode (5) is...
Gespeichert in:
Hauptverfasser: | , , |
---|---|
Format: | Patent |
Sprache: | chi ; eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | The aim of the invention is to increase the measuring precision of an electric measuring assembly (1) for capacitively measuring a liquid, comprising an inner electrode (2) and an outer electrode (3)arranged concentrically to the inner electrode. This is achieved in that a shielding electrode (5) is arranged between the outer electrode (3) and the inner electrode (2). Preferably, the potential ofthe shielding electrode (5) can be actively adjusted to the potential of the inner electrode (2) by means of a corresponding electric connection such that electric fields which are caused by dielectric displacements in parasitic capacitances are effectively shielded from the inner electrode (2) and thus from the capacitance to be measured. For this purpose, a two-part design of the inner electrode (2) is proposed with sections (6) and (7) which can be moved axially relative to each other.
为了提高具有内部电极(2)和与其同心地设置的外部电极(3)的用于电容性测量液体的电测量装置(1)的测量精度而提出,在所述外部电极(3)和内部电极(2)之间设置有屏蔽电极(5),优选借助于相应的电互联,所述屏蔽电极(5)的电位能主动地跟随所述内部电极(2)的电位, |
---|