Unlock instant, AI-driven research and patent intelligence for your innovation.

Capacitive measuring probe and method for producing a capacitive measuring probe

A measurement probe, capacitive technology, applied in the direction of liquid level indicator, measuring device, liquid/fluid solid measurement, etc. of physical variable measurement, can solve the problem of not allowing permanent determination

Inactive Publication Date: 2011-03-23
ROBERT BOSCH GMBH
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Liquids such as uric acid alter the metal electrodes and therefore do not allow permanent determination of the liquid level

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Capacitive measuring probe and method for producing a capacitive measuring probe
  • Capacitive measuring probe and method for producing a capacitive measuring probe
  • Capacitive measuring probe and method for producing a capacitive measuring probe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] figure 1 An embodiment of a capacitive measuring probe 1 is shown. The measuring probe 1 has two electrodes 2 , 3 . The two electrodes 2, 3 are preferably made of metal. The two electrodes 2 , 3 are surrounded by a closed plastic encapsulation 4 , 5 . exist figure 2 A section plane A-A through the two electrodes 2, 3 and their respective plastic encapsulation 4, 5 is shown in . The plastic sheathing structure 4 of the first electrode 2 is made of a conductive material. The plastic sheath structure 5 of the second electrode 3 is made of a single insulating plastic.

[0020] Conductive plastics can be manufactured by mixing metal particles or carbon fibers into plastic pellets during plating. The organic components of conductive plastics and insulating plastics can be the same. This makes it possible to improve the adhesion properties of the two plastic casing structures to one another at their common seam point 6 . Therefore, no liquid can enter through this sea...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The capacitive measuring probe according to the invention comprises: two electrodes, and a plastic casing encapsulating the two electrodes, wherein the plastic casing has at least one section made of conductive plastic, which is electrically connected to one of the two electrodes.

Description

technical field [0001] The invention relates to a capacitive measuring probe and a method for producing a capacitive measuring probe. Background technique [0002] Capacitive measuring probes are known from DE 195 11 556 C1 and DE 198 50 291 C1. Capacitive measuring probes are suitable for determining the level of liquids. The measuring probe has a cylindrical, metallic outer electrode and a metallic inner counter-electrode. Liquid can flow between these two electrodes. Due to the different dielectric constants of air and liquid, the capacitance of this measuring probe changes according to the liquid level. A suitable evaluation device estimates the filling level from the capacitive measurement. [0003] The use of such capacitive measuring probes is limited to non-corrosive liquids. Liquids such as uric acid alter the metal electrodes and thus do not allow the level of this liquid to be permanently determined. Contents of the invention [0004] The capacitive measur...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01F23/26
CPCG01F23/263
Inventor G·克勒特M·尼曼
Owner ROBERT BOSCH GMBH