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US 11,686,601 B2Granted
Sensor system and method for position or angle detection
AssigneeHoneywell International Inc.
InventorsChristian Kamp, Thomas Lampe, Tobias Fechtel, Mathias Grewe
Life of this patent
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Abstract
A sensor system and method of operating the sensor system can include an indicator that is operable in resonance, the indicator being connected to a movable element of an actuator, and a sensor including sensor windings arranged in direct proximity to the indicator and external to a closed housing. The sensor can receive a position or an angle of the indicator, and can measure the position or the angle of the movable element inside the actuator through the closed housing based on inductive resonance facilitated by the indicator.
Claims19
A sensor system, comprising:
- at least one indicator comprising an oscillating circuit that is operable in resonance;
- the at least one indicator connected to a movable element of an actuator;
- and
- a sensor PCB comprising sensor windings, wherein the sensor PCB with the sensor windings is arranged in direct proximity to the at least one indicator and external to a closed housing, wherein the sensor PCB receives a position or an angle of the at least one indicator, and measures a position or an angle of the movable element inside the actuator through the closed housing based on inductive resonance facilitated by the oscillating circuit, wherein:
- the at least one indicator comprises at least two position indicators attached to the moveable actuating element, wherein a predefined distance or a predefined angle exists between the at least two position indicators;
- the at least two position indicators are dimensioned so that respective resonance frequencies differ from one another;
- and
- at least one signal conditioning circuit processes signals from the at least two position indicators.
5 more elements
A sensor system, comprising:
- at least one indicator operable in resonance;
- the at least one indicator connected to a moveable element of an actuator;
- and
- a sensor comprising sensor windings, wherein the sensor with the sensor windings is arranged in direct proximity to the at least one indicator and external to a closed housing, wherein the sensor receives a position or an angle of the at least one indicator, and measures a position or an angle of the movable element inside the actuator through the closed housing based on inductive resonance facilitated by the at least one indicator, wherein:
- the at least one indicator comprises at least two position indicators attached to the moveable actuating element, wherein a predefined distance or a predefined angle exists between the at least two position indicators;
- the at least two position indicators are dimensioned so that respective resonance frequencies differ from one another;
- and
- at least one signal conditioning circuit processes signals from the at least two position indicators.
5 more elements
A method of operating a sensor system, the method comprising:
- operating at least one indicator in resonance, wherein the at least one indicator is associated with an actuator, wherein the at least one indicator is connected to a movable element of the actuator;
- receiving a position or an angle of the at least one indicator by a sensor comprising sensor windings, wherein the sensor is arranged in direct proximity to the at least one indicator and external to a closed housing;
- measuring a position or an angle of the movable element inside the actuator through the closed housing based on inductive resonance facilitated by the at least one indicator, wherein the at least one indicator comprises at least two position indicators attached to the moveable actuating element, wherein a predefined distance or a predefined angle exists between the at least two position indicators, and wherein the at least two position indicators are dimensioned so that respective resonance frequencies differ from one another;
- and
- processing signals from the at least two position indicators with at least one signal conditioning circuit.
2 more elements
Dependencies are inferred from the claim text.