Handheld Caliper User Interface Using Displacement Sensor for Function Control
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Solution Overview
Problem
Conventional handheld measuring devices, such as electronic calipers, face challenges in providing intuitive access to additional user functions without increasing device size, mechanical complexity, or cost, particularly due to limitations in button configuration and touch screen reliability.
Innovation Solution
A measuring device with a user interface that includes two modes: one for displaying displacement measurement values and another for operation control elements, where the operation control elements are responsive to changes in the displacement sensor, allowing users to navigate and select functions through a combination of button operations and sensor-driven indicator movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional user functions are added to the measuring device, then functionality is improved, but device complexity increases
Solution Approach 1:
The displacement sensor serves multiple functions: it both measures physical dimensions and controls user interface navigation. By making the sensor control indicator movement and function selection, the device achieves multi-functionality without adding separate control mechanisms, thus improving versatility while maintaining simplicity.
Solution Approach 2:
The patent combines the measurement function and control function into a single operational mechanism. The same sensor that detects displacement for measurement also detects displacement for navigating menu options and selecting functions, merging two previously separate functions into one unified system.
2Adaptability or versatility
If more buttons are added to provide additional functions, then adaptability is improved, but ease of operation deteriorates
Solution Approach 1:
The existing sensor is made multi-functional by having it control both measurement display and menu navigation. This eliminates the need for additional buttons while providing access to multiple functions, improving adaptability without compromising ease of operation.
Solution Approach 2:
The system uses the sensor's inherent displacement detection capability to automatically control indicator movement and function selection. The sensor essentially serves itself by using its primary measurement function to also drive the user interface navigation, eliminating the need for separate control inputs.
3Ease of operation
If the device size is increased to improve ergonomics, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The sensor is designed to perform dual roles: measurement and control. This multi-functionality allows the device to maintain a compact ergonomic form factor while still providing access to multiple functions through the same sensor, avoiding the need for larger housing to accommodate additional controls.
4Adaptability or versatility
If touch screens are used to provide additional functions, then adaptability is improved, but reliability deteriorates
Solution Approach 1:
The displacement sensor automatically controls the indicator position and function selection based on its measurement function. This self-service approach eliminates the need for touch screens or other complex input interfaces, maintaining reliability while providing access to multiple functions.
Data Source
AI summary
A measuring device is provided including a user interface responsive to changes in a displacement sensed by a displacement sensor. The measuring device (e.g., a handheld caliper or micrometer) includes a displacement sensor, a display, a signal processing and control portion, and a user interface. The displacement sensor includes a readhead and a scale displaceable relative to one another along a measuring axis under the manual control of a user, with the display being connected to the readhead. In a first user interface mode, displacement measurement values are displayed and are responsive to changes in the displacement of the displacement sensor. In a second user interface mode, operation control elements are displayed in the user interface and an operation control element action visible in the user interface (e.g., movement of a selection indicator) is responsive to changes in the displacement of the displacement sensor.