Haptic Sensor With Segmented Distortion Sensors For Tilt And Rotation
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Solution Overview
Problem
Existing haptic sensors are complex and unable to detect tilt and rotation manipulations with high sensitivity using a simple structure, as they require multiple distortion sensors to cover all axes of manipulation.
Innovation Solution
A haptic sensor design featuring a distortion generating body with a base, a first column, and multiple second columns, where first distortion sensors detect rotation and second distortion sensors detect tilt, allowing for high sensitivity detection of these manipulations using a relatively simple structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple distortion sensors are used to detect all axes of manipulation, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The manipulation plate is segmented into multiple regions, each equipped with specific distortion sensors tailored to detect particular manipulation types (tilt, rotation, press). This segmentation allows each sensor to focus on specific deformation patterns, improving detection sensitivity while avoiding the need for comprehensive sensor coverage across the entire plate.
Solution Approach 2:
Different types of distortion sensors are strategically placed at different locations on the manipulation plate based on local deformation characteristics. For example, tilt sensors are positioned to detect bending moments, while rotation sensors are placed to capture torsional deformations. This local optimization enables high detection sensitivity with fewer sensors.
2Device complexity
If a simple structure is used, then device complexity is reduced, but measurement precision deteriorates
Solution Approach 1:
The manipulation plate serves multiple functions simultaneously: it acts as the user interface for input, a structural element that transmits forces, and a platform that generates detectable deformations. This multi-functionality reduces the need for separate dedicated components, achieving simple structure without sacrificing detection capability.
Solution Approach 2:
The distortion sensors act as intermediaries that convert mechanical deformations of the manipulation plate into electrical signals. This intermediary mechanism enables precise detection of various manipulation types through a unified simple structure, avoiding the need for complex direct measurement systems.
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 proposed haptic sensor effectively detects tilt and rotation manipulations with high sensitivity, achieving this with a simpler structure compared to existing solutions, thereby enhancing the accuracy and reliability of haptic feedback.
Implementation Method 1
a distortion sensor that detects deformation of the distortion generating body
Data Source
AI summary
A haptic sensor has: a distortion generating body; first distortion sensors for detecting a rotation manipulation; and second distortion sensors for detecting a tilt manipulation. The distortion generating body has: a base in a plate-like shape; a first column disposed on one surface of the base; and a plurality of second columns disposed on a single circumference, the center of which is the first column, on another surface of the base. On the base of the distortion generating body, the first distortion sensors are placed on a circumference shared between the first distortion sensors and the plurality of second columns. On the base of the distortion generating body, the second distortion sensors are placed around the first column.