Programmable Sensor Pole Width Adaptation
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Solution Overview
Problem
Magnetic encoders designed for one rotating member may not produce accurate position or speed data for another member due to differences in size and resolution, requiring specialized equipment for sensor trimming and reconfiguration.
Innovation Solution
A programmable sensor chip that utilizes normally unused memory to store configuration information for different pole widths, allowing rapid reconfiguration without specialized hardware or software, using an active and inactive memory setting module to adapt to various magnetic targets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a sensor is designed and trimmed for a specific pole width, then measurement precision is improved, but adaptability deteriorates
Solution Approach 1:
The sensor incorporates a reconfigurable memory structure that allows pole width settings to be dynamically changed. The memory is organized with active and inactive setting modules that can be swapped, enabling the sensor to adapt to different rotating member specifications without physical modification.
Solution Approach 2:
The invention changes the parameter storage state by utilizing inactive memory locations to store additional pole width settings. By retrieving and activating different stored settings, the sensor can adjust its operational parameters to match various rotating member specifications.
2Manufacturing precision
If specialized external measurement equipment is used for sensor trimming, then manufacturing precision is improved, but device complexity deteriorates
Solution Approach 1:
The sensor performs its own configuration by utilizing its internal inactive memory locations to store and retrieve pole width settings. This self-service capability eliminates the need for external measurement and programming equipment, simplifying the overall system while maintaining manufacturing precision.
Solution Approach 2:
The invention extracts the configuration functionality from external equipment and embeds it within the sensor itself. By storing multiple pole width settings in inactive memory locations, the sensor becomes self-sufficient for reconfiguration without requiring external programming devices.
3Adaptability or versatility
If inactive memory locations are utilized for storing additional settings, then adaptability is improved, but device complexity deteriorates
Solution Approach 1:
The inactive memory locations, which would otherwise be unused, are repurposed to store additional pole width settings. This multi-functional use of memory space increases adaptability without adding separate storage components, maintaining a simple device architecture.
Solution Approach 2:
The memory structure is organized with active and inactive setting modules nested within the same memory space. This nested arrangement allows multiple pole width settings to be stored compactly, increasing adaptability while avoiding the complexity of separate memory structures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate detection of position and speed for a variety of encoders with different resolutions or pole widths, facilitating flexible and efficient sensor adaptation without the need for external measurement equipment.
Implementation Method 1
magnetic encoder technology... Hall Effect sensing elements in a sensor array are used to generate output signals related to position and/or speed
Data Source
AI summary
A sensor for an encoder. The sensor includes a sensing circuit, an active setting module, an inactive setting module, and a sensor interface. The sensing circuit module is configured to generate an output signal related to a sensed characteristic. The active setting module includes a first pole width setting. The first pole width setting is associated with a first pole width for the encoder. The first pole width setting is accessible by the sensing circuit module. The inactive setting module includes second pole width setting. The second pole width setting is associated with a second pole width for the encoder. The second pole width setting is not accessible by the sensing circuit module. The sensor interface is configured for retrieving the second pole width setting from the inactive setting module and writing the second pole width setting to the active setting module.