Inductive Displacement Sensor Assembly for Compact Gripper Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional mechanical proximity sensors and displacement sensors are sensitive to positioning, complex to set up, and have limited capabilities, making them unsuitable for compact and versatile applications.
Innovation Solution
A sensor assembly featuring a moveable inductor member and coil that generates an inductance signal based on movement, allowing for accurate detection of displacement without precise positioning, and providing enhanced capabilities through real-time monitoring and error detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional mechanical proximity sensors or displacement sensors are used, then displacement detection capability is provided, but the sensor accuracy is sensitive to positioning and setup complexity increases
Solution Approach 1:
The patent replaces conventional mechanical proximity sensors with an inductive sensing system that uses electromagnetic fields instead of mechanical contact. The inductor coil generates an electromagnetic field that interacts with the moveable member, eliminating the need for precise mechanical positioning and reducing setup complexity while maintaining measurement accuracy.
Solution Approach 2:
The patent introduces an inductor coil as an intermediary between the sensor system and the moveable member. This intermediary creates an electromagnetic coupling that allows displacement detection without direct mechanical contact, thereby reducing sensitivity to positioning errors and simplifying the overall system setup.
2Measurement precision
If conventional mechanical proximity sensors or displacement sensors are used, then displacement detection is achieved, but the sensor size becomes relatively large and capability is limited
Solution Approach 1:
The patent designs the sensor assembly to perform multiple functions: displacement detection, position monitoring, and potential integration with control systems. The inductive sensing mechanism provides universal applicability across different gripper configurations and movement types, enabling a compact design that delivers enhanced capabilities beyond simple displacement measurement.
Solution Approach 2:
The patent utilizes changes in inductance parameters as the moveable member moves relative to the inductor coil. By monitoring inductance variations caused by changes in magnetic coupling, the system achieves accurate displacement detection in a compact form factor, avoiding the need for large mechanical sensor structures.
3Measurement precision
If conventional mechanical proximity sensors or displacement sensors are used, then movement detection is provided, but positioning sensitivity creates adjustment requirements
Solution Approach 1:
The patent replaces mechanical sensing mechanisms with inductive sensing that is inherently less sensitive to positioning variations. The electromagnetic field-based detection method maintains measurement accuracy without requiring the same level of precise alignment and adjustment that mechanical sensors demand, thereby improving ease of operation.
Solution Approach 2:
The inductive sensing system automatically adapts to positioning variations through the nature of electromagnetic field interaction. The system self-adjusts to maintain accurate measurement without requiring manual calibration or frequent adjustments, reducing operational complexity and improving ease of use.
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 sensor assembly offers improved accuracy and reduced complexity by providing real-time displacement monitoring and error detection, eliminating the need for precise positioning and enhancing capabilities beyond basic displacement sensing.
Implementation Method 1
A flexible inductor member moves relative to an inductor coil in response to movement of the moveable member. This produces an inductance signal that represents the movement.
Data Source
AI summary
A sensor assembly includes a moveable member and an inductor coil. A flexible inductor member moves relative to the inductor coil in response to movement of the moveable member. This produces an inductance signal that indicates the movement of the moveable member.