Adaptive Wireless Torque Measurement via Dynamic Power Feedback
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Solution Overview
Problem
Wireless torque measurement systems face challenges in maintaining optimal power levels and efficiency due to tight alignment requirements between rotor and stator antennas, leading to significant power loss and inefficiency when the gap between them changes.
Innovation Solution
An adaptive wireless torque measurement system that includes a rotor and stator antenna pair inductively coupled, with rotor electronics determining power level magnitude and generating feedback data to adjust power signals and bit resolution, allowing for optimal power operation and alignment adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the gap between rotor and stator antennas is reduced to improve power transfer efficiency, then power loss decreases, but alignment precision requirements increase significantly
Solution Approach 1:
The system dynamically adjusts the power output of the stator electronics based on real-time feedback about the gap distance between antennas. This dynamic adaptation allows the system to maintain optimal power transfer efficiency across varying gap conditions without requiring fixed tight alignment, thereby reducing the stringency of manufacturing precision requirements while minimizing power loss.
Solution Approach 2:
The system changes the operating parameters (power output level) based on the detected gap distance. By adjusting the power magnitude according to the actual antenna separation, the system compensates for variations in coupling efficiency, allowing operation at larger gaps than traditionally permitted while maintaining acceptable power transfer and reducing alignment precision constraints.
2Reliability
If the power output is fixed at a high value to account for losses and interference, then reliability is improved, but energy efficiency deteriorates when operating at small gaps
Solution Approach 1:
The system employs a feedback mechanism where the rotor electronics measure the actual power received and the gap distance, then communicate this information back to the stator electronics. Based on this feedback, the stator electronics adjust the power output to an optimal level, ensuring sufficient power is transmitted to maintain reliability while avoiding excessive power consumption that would occur with fixed high-power operation, thus improving energy efficiency.
Solution Approach 2:
The power output transitions from a static fixed value to a dynamic adjustable parameter. The stator electronics continuously adapt the power magnitude based on real-time conditions (gap distance, received power level), allowing the system to maintain reliable operation across varying conditions while optimizing energy efficiency by avoiding unnecessary high power consumption when conditions permit lower power operation.
3Productivity
If adaptive power control is implemented to improve energy efficiency, then system efficiency increases, but device complexity increases
Solution Approach 1:
The system implements self-service through autonomous feedback-based power adjustment. The rotor electronics automatically measure the gap distance and power reception conditions, determine the optimal power level, and communicate this back to the stator electronics, which then adjusts its output accordingly. This self-regulating mechanism achieves adaptive power control and improved system efficiency without requiring complex external control systems or manual intervention, thereby limiting the increase in device complexity.
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
The system maintains optimal power levels and increases efficiency by dynamically adjusting power output and bit resolution based on antenna proximity, ensuring reliable operation across varying clearance conditions.
Implementation Method 1
The stator antenna is configured to be inductively coupled to the rotor antenna
Data Source
AI summary
An adaptive wireless torque measurement system includes a rotor, a rotor antenna, a stator antenna, stator electronics, and rotor electronics. The rotor antenna is attached to the rotor. The stator antenna is configured to be inductively coupled to the rotor antenna. The stator electronics are coupled to receive, via the stator antenna, feedback data and are configured, in response thereto, to generate and transmit, via the stator antenna, power signals at a power level magnitude based in part on the feedback data. The rotor electronics are attached to the rotor and are coupled to receive, via the rotor antenna, the power signals transmitted by the stator electronics. The rotor electronics are configured to determine the power level magnitude of the power signals, generate the feedback data, the feedback data at least including information representative of the determined power level magnitude, and transmit, via the rotor antenna, the feedback data.