Patent · US Expired

Structural body having a stochastic surface patterning as well as a capacitive sensor having such a structural body

US6515491B1 · kind B1 · utility

1Cited by

4References

16Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Michael Kupzig · Niederkassel, DE
Andrea Schilp · Schwäbisch Gmünd, DE
Karsten Funk · Stuttgart, DE

Key dates

Filing date	May 11, 2000
Grant date	Feb 4, 2003
Priority date	—
Expiry date	May 11, 2020

Classification

Technology area (CPC G)Physics
CPC primaryG01R27/2605
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A structural body which, at least region-wise, has at least one area which is in contact with a liquid or a gas flowing past, and which, at least to a great extent, is provided with a surface patterning made of a plurality of randomly or irregularly distributed geometric forms, in particular pyramids. At least one such structural body be used in a capacitive sensor with which, in particular, the dielectric constants or the conductance of a liquid or a gas can be determined.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.