Inclination sensor
OwnerKlaus Manfred Steinichinventor
Life of this patent
Estimating the term…
Abstract
Inclination sensors with magnetic XMR- or Hall-sensor-principles were implemented in the past by the pivotably supported indicator magnet being supported on the front face of the axle of a pendulum, with the consequence that the static friction of the support had to be overcome first, before the inclination sensor would react. Thereby very small and very slow inclinations often could not be detected. These designs always have a large amount of hysteresis. According to the invention this problem is being solved by the indicator magnet being mounted either on a float, or on a pendulum that is being supported ferrofluidic, whereby the static friction is much smaller or eliminated entirely.
Claims29
An inclination sensor, said sensor comprising:
- a housing (2) with a chamber (4) having one wall (6) made from a material that cannot be magnetized;
- an indicator magnet (8) movable directly or indirectly according to gravity in the chamber (4);
- a magnetosensitive sensor (9) outside of the chamber (4);
- and
- wherein the indicator magnet (8) is disposed in a rotationally fixed fashion on a pivot axis (10) of a pendulum (25), which is supported ferrofluidic, with its pole axis (15) disposed transversal to the pivot axis (10).
An inclination sensor, said sensor comprising:
- a housing (2) with a float chamber (4) with a divider wall (6) made from non-magnetic material;
- an indicator magnet (8) located in the float chamber (4) moveable directly or indirectly according to gravity;
- a magnetosensitive sensor (9) outside of the float chamber (4);
- and
- wherein the indicator magnet (8) is disposed on a float (5, 5′) that floats on a fluid (7) located in the float chamber (4), and
- wherein protrusions with small surfaces are disposed on the outside of said float or on an inside of said float chamber (4) for contacting an other respective element.
An inclination sensor, said sensor comprising:
- a housing (2) with a float chamber (4) with a divider wall (6) made from non-magnetic material;
- an indicator magnet (8) located in the float chamber (4) moveable directly or indirectly according to gravity;
- a magnetosensitive sensor (9) outside of the float chamber (4);
- and
- wherein the indicator magnet (8) is disposed on a float (5, 5′) that floats on a fluid (7) located in the float chamber (4), and
- wherein a magnet axis is parallel with the fluid level but transverse and perpendicular to a pivot axis of the magnet.
An inclination sensor, said sensor comprising:
- a housing (2) with a float chamber (4) with a divider wall (6) made from non-magnetic material;
- an indicator magnet (8) located in the float chamber (4) moveable directly or indirectly according to gravity;
- a magnetosensitive sensor (9) outside of the float chamber (4);
- and
- wherein the indicator magnet (8) is disposed on a float (5, 5′) that floats on a fluid (7) located in the float chamber (4), and
- wherein said indicator magnet (8) is located in or on said float (5) so that said indicator magnet is at an elevation of the fluid level.
An inclination sensor, said sensor comprising:
- a housing (2) with a float chamber (4) with a divider wall (6) made from non-magnetic material:
- an indicator magnet (8) located in the float chamber (4) moveable directly or indirectly according to gravity;
- a magnetosensitive sensor (9) outside of the float chamber (4);
- and
- wherein the indicator magnet (8) is disposed on a float (5, 5′) that floats on a fluid (7) located in the float chamber (4), and
- wherein a slosh baffle (18) is disposed in said float chamber (4) to prevent a full rotation of said float (5).
An inclination sensor, said sensor comprising:
- a housing (2) with a float chamber (4) with a divider wall (6) made from non-magnetic material;
- an indicator magnet (8) located in the float chamber (4) moveable directly or indirectly according to gravity;
- a magnetosensitive sensor (9) outside of the float chamber (4);
- and
- wherein the indicator magnet (8) is disposed on a float (5, 5′) that floats on a fluid (7) located in the float chamber (4), and
- wherein said float chamber (4) is filled with two hard to mix fluids (7) having different specific weights, and said float (5) floats, on the heaviest of the two fluids.
An inclination sensor, said sensor comprising:
- a housing (2) with a float chamber (4) with a divider wall (6) made from non-magnetic material;
- an indicator magnet (8) located in the float chamber (4) moveable directly or indirectly according to gravity;
- a magnetosensitive sensor (9) outside of the float chamber (4);
- and
- wherein the indicator magnet (8) is disposed on a float (5, 5′) that floats on a fluid (7) located in the float chamber (4), and
- wherein said float (5) has its centre of gravity at an elevation of the fluid level, and in the geometric centre of the float, which is provided symmetrical in at least one axis.
An inclination sensor, said sensor comprising:
- a housing (2) with a float chamber (4) with a divider wall (6) made from non-magnetic material;
- an indicator magnet (8) located in the float chamber (4) moveable directly or indirectly according to gravity;
- a magnetosensitive sensor (9) outside of the float chamber (4);
- and
- wherein the indicator magnet (8) is disposed on a float (5, 5′) that floats on a fluid (7) located in the float chamber (4), and
- wherein a centre of gravity of said float is located below the fluid level, and
- wherein said float extends over an entire diameter of said float chamber, and said indicator magnet is located on an axis of said float with said float having a rotationally symmetric shape.
Dependencies are inferred from the claim text.