Device for gauging the status of a material especially of oils or fats
OwnerJurgen Hall, Mike Muhlinventors
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Abstract
The invention is a device for gauging the status of a material such as a fat or an oil. The device comprises: a housing; a hollow connecting element; a substrate, attached at the opposite end of the hollow connecting element; a sensor, proximate the substrate, for measuring an electrical property of the material being tested; a protective coating, wherein the protective coating covers the sensor and can be applied using either a thin-film or a thick-film technology; and, an electronic evaluation unit connected via at least one electric line to the sensor; and, is arranged proximate the housing and/or proximate the end of the connecting element that faces the housing.
Claims22
1-16. (canceled)
A device for gauging the status of a material to be tested, especially an oil or a fat material, said device comprising:
- (a) a housing;
- (b) a hollow connecting element connected to said housing;
- (c) a substrate, attached at an opposite end of said hollow connecting element;
- (d) a sensor, proximate said substrate, said sensor for measuring an electrical property of said material being tested;
- (e) a protective coating, wherein said protective coating is configured to cover said sensor;
- and
- (f) an electronic evaluation unit, said electronic evaluation unit connected via at least one electric line to said sensor;
- and said electronic evaluation unit arranged proximate the end of said connecting element facing said housing.
A device for gauging the status of a material, particularly an oil or a fat material, said device comprising:
- (a) a housing;
- (b) a hollow connecting element connected to said housing;
- and
- (c) a substrate, attached at the opposite end of said hollow connecting element and configured to hold a sensor;
- (d) said sensor being proximate said substrate, said sensor being operative for measuring an electrical property of said material being tested, and wherein said sensor is covered by a protective coating;
- (e) said sensor is capable of measuring a dielectric constant of said material to be tested and being embodied as one of a capacitor and an interdigital capacitor;
- (f) said coating for said sensor having a thickness of less than 10 μm;
- a hardness that is greater than a hardness of gold, a surface resistivity of greater than 1 MΩ;
- and a permittivity of said protective coating is less than 10;
- and
- (g) an electronic evaluation unit, said electronic evaluation unit connected via at least one electric line to said sensor;
- and is arranged proximate said housing.
A device for gauging the status of a material, said device comprising:
- (a) a housing;
- (b) a hollow connecting element connected to said housing;
- and
- (c) a substrate, attached at the opposite end of said hollow connecting element;
- (d) a sensor, proximate said substrate, said sensor for measuring an electrical property of said material being tested;
- (e) a protective coating, wherein said protective coating:
- (i) covers said sensor;
- (ii) is resistant to oxidation;
- and
- (iii) has an oleophilic surface;
- and
- (f) an electronic evaluation unit, said electronic evaluation unit connected via at least one electric line to said sensor;
- and is arranged proximate the end of said connecting element that faces said housing.
Dependencies are inferred from the claim text.