Abstract: Aspects of this disclosure relate to one or more particles that move within a container in response to a magnetic field. A measurement circuit is configured to output an indication of the magnetic field based on position of the one or more particles.

Abstract: Aspects of this disclosure relate to particles that can move in response to a magnetic field. A system can include a container, particles within the container, and a magnetic structure integrated with the container. The magnetic structure can magnetically interact with both an external magnetic field and the particles. Related methods are disclosed including magnetic field detection methods based on detection of particles within a container.

Abstract: Aspects of this disclosure relate to force based on movement of magnetically sensitive material. In embodiments, first magnetically sensitive material and second magnetically sensitive material can be in an initial position. According to such embodiments, one or more sensors to detect force based on relative position of the first magnetically sensitive material and the second magnetically sensitive in a second position. Related systems and methods for force detection are disclosed.

Abstract: Aspects of this disclosure relate to force based on a profile of magnetically sensitive material in a container. One or more sensors can detect the profile of the magnetically sensitive material, where the profile is associated with a force applied to the container. The profile includes magnetically sensitive material concentrated in one or more particular areas within the container. Related systems and methods for force detection are disclosed.

Abstract: Aspects of this disclosure relate to adjusting fluid flow using magnetically sensitive particles. Fluid can flow through an opening in a container. Magnetically sensitive particles can be confined within the container. A magnetic field can be applied to move the magnetically sensitive particles in the container to adjust flow of the fluid through the opening.

Abstract: Aspects of this disclosure relate to generating measurements based on positions of particles within one or more compartments. At least some of the particles can move in response to an external stimulus. A comparative measurement can be provided based on comparing the measurements. The measurements can be associated with two or more types of particles and/or two or more compartments.

Abstract: A magnetic angle measurement system having magnetic angle sensors, signal processing circuitry and a processor is disclosed. First signal processing circuitry receives a first subset of outputs of a first plurality of outputs from a first magnetic angle sensor and determines first magnetic angle data based on the received first subset of outputs. Second signal processing circuitry receives a second subset of the outputs from the first magnetic angle sensor and determines second magnetic angle data based on the received second subset of outputs. Third signal processing circuitry receives a second plurality of outputs from the second magnetic sensor and determines third magnetic angle data based on the received second plurality of outputs. The processor compares the magnetic angle data and determines a processing result based on the comparison, where fault tolerance resolution of the magnetic angle measurement system is based at least in part on the processing result.

Abstract: Aspects of this disclosure relate to systems that include a channel with at least one fluid in particle in fluid. The at least one particle can move along a defined path of the channel in response to a magnetic field. At least one structure is integrated with the channel, such as a sensor to generate an output signal related to the magnetic field or a magnetic structure to apply the magnetic field. Relates methods are also disclosed.

Abstract: Aspects of this disclosure relate to detecting temperature based on movement of one or more particles within a container. The container includes a medium material. Mobility of the one or more particles in the medium material changes in response to a change in temperature.

Abstract: Aspects of this disclosure relate to one or more particles that move within a container in response to a magnetic field. A measurement circuit is configured to output an indication of the magnetic field based on position of the one or more particles.

Abstract: Systems and methods for detecting magnetic turn counter errors with redundancy are provided. In one aspect, a magnetic field turn sensor system includes a magnetic field angle sensor having a sine bridge and a cosine bridge and first to third comparators configured to compare the outputs from the sine and cosine bridges. The system further includes a processor configured to receive outputs from each of the first to third comparators, determine that a combination of the outputs from the first to third comparators corresponds to an invalid state, and indicate a fault in response to determining that the combination of the outputs from the first to third comparators corresponds to the invalid state.

Abstract: Systems and methods for detecting magnetic turn counter errors are provided herein. In one aspect, there is provided a magnetic field turn sensor system including: a magnetic field angle sensor, a signal processing path configured to receive an output from the magnetic field angle sensor and generate an angle measurement based on the output, a turn count path configured to process the output from the magnetic field angle sensor and output a quadrant measurement based on the output and a processor. The processor is configured to: receive the angle measurement from the signal processing path and the quadrant measurement from the turn count path, determine that the angle measurement deviates from the expected transition angle by more than a threshold value, and indicate a fault in response to determining that the angle measurement deviates from the expected transition angle by more than the threshold value.

Abstract: Aspects of this disclosure relate to a resettable closed-loop multi-turn magnetic sensor. In one aspect, the sensor includes a nanowire forming a plurality of loops, a plurality of domain orientation sensors configured to detect locations of a pair of domain walls within the nanowire, and an initialization circuit configured to inject the pair of domain walls into the nanowire. The nanowire forms a closed-loop via a bridge crossing connecting two of the loops.

Abstract: Systems and methods for detecting magnetic turn counter errors with redundancy are provided. In one aspect, a magnetic field turn sensor system includes a magnetic field angle sensor having a sine bridge and a cosine bridge and first to third comparators configured to compare the outputs from the sine and cosine bridges. The system further includes a processor configured to receive outputs from each of the first to third comparators, determine that a combination of the outputs from the first to third comparators corresponds to an invalid state, and indicate a fault in response to determining that the combination of the outputs from the first to third comparators corresponds to the invalid state.

Abstract: Systems and methods for detecting magnetic turn counter errors are provided herein. In one aspect, there is provided a magnetic field turn sensor system including: a magnetic field angle sensor, a signal processing path configured to receive an output from the magnetic field angle sensor and generate an angle measurement based on the output, a turn count path configured to process the output from the magnetic field angle sensor and output a quadrant measurement based on the output and a processor. The processor is configured to: receive the angle measurement from the signal processing path and the quadrant measurement from the turn count path, determine that the angle measurement deviates from the expected transition angle by more than a threshold value, and indicate a fault in response to determining that the angle measurement deviates from the expected transition angle by more than the threshold value.

Abstract: A magnetic angle measurement system having magnetic angle sensors, signal processing circuitry and a processor is disclosed. First signal processing circuitry receives a first subset of outputs of a first plurality of outputs from a first magnetic angle sensor and determines first magnetic angle data based on the received first subset of outputs. Second signal processing circuitry receives a second subset of the outputs from the first magnetic angle sensor and determines second magnetic angle data based on the received second subset of outputs. Third signal processing circuitry receives a second plurality of outputs from the second magnetic sensor and determines third magnetic angle data based on the received second plurality of outputs. The processor compares the magnetic angle data and determines a processing result based on the comparison, where fault tolerance resolution of the magnetic angle measurement system is based at least in part on the processing result.

Abstract: Aspects of this disclosure relate to a resettable closed-loop multi-turn magnetic sensor. In one aspect, the sensor includes a nanowire forming a plurality of loops, a plurality of domain orientation sensors configured to detect locations of a pair of domain walls within the nanowire, and an initialization circuit configured to inject the pair of domain walls into the nanowire. The nanowire forms a closed-loop via a bridge crossing connecting two of the loops.

Abstract: Sensor error detection with an additional channel is disclosed herein. First and second magnetic sensing elements can be disposed at angles relative to each other. In some embodiments, the first and second magnetic sensing elements can be magnetoresistive sensing elements, such as anisotropic magnetoresistance (AMR) sensing elements. Sensor data from first and second channels, respectively, having the first and second sensing elements, can be obtained. Third channel can receive a signal from the first sensing element and a signal from the second sensing element, and sensor data from the third channel can be obtained. Expected third channel data can be determined and compared to the obtained third channel data to indicate error.

Abstract: Sensor error detection with an additional sensing channel is disclosed herein. First, second, third sensing elements can be disposed at angles relative to one another. In some embodiments, the first, second, and third sensing elements can be magnetic sensing elements, such as anisotropic magnetoresistance (AMR) sensing elements. Sensor data from first, second, and third sensing channels, respectively having the first, second, and third sensing elements, can be obtained. Expected third sensing channel data can be determined and compared to the obtained third sensing channel data to indicate error.

Abstract: Sensor error detection with an additional sensing channel is disclosed herein. First, second, third sensing elements can be disposed at angles relative to one another. In some embodiments, the first, second, and third sensing elements can be magnetic sensing elements, such as anisotropic magnetoresistance (AMR) sensing elements. Sensor data from first, second, and third sensing channels, respectively having the first, second, and third sensing elements, can be obtained. Expected third sensing channel data can be determined and compared to the obtained third sensing channel data to indicate error.