Single-Point Tension Probe for Constrained Access Measurement
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Solution Overview
Problem
Existing tension measuring devices require multiple parts to contact the test object, making them cumbersome for use in environments with limited access, and often secure the object on opposing sides, which complicates measurements.
Innovation Solution
A tension measuring device with a probe that contacts the test object at a single location, using a sensor to detect the force exerted and a switch to signal displacement, allowing for local tension measurement that can be correlated to overall tension based on object dimensions, and featuring multiple switches for more accurate measurements at non-orthogonal angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple sensors and arms are used to contact the test object on opposing sides, then measurement reliability is improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The patent extracts the measurement function from a multi-component system (multiple arms and sensors) and concentrates it in a single probe that contacts the test object at one location. This eliminates the need for multiple arms to grasp opposing sides, reducing device complexity while maintaining measurement capability through a simplified single-point contact mechanism
Solution Approach 2:
The single probe serves multiple functions: it applies force to the test object, measures the force through an integrated sensor, and determines displacement by detecting when the object reaches a predetermined distance. This multi-functionality in a single component replaces the need for separate arms and multiple sensors, reducing overall device complexity
2Measurement precision
If multiple arms contact the test object on opposing sides, then measurement precision is improved, but ease of operation worsens in constrained environments
Solution Approach 1:
The patent segments the measurement function into two independent components: a single probe that applies force and measures local tension at one contact point, and a separate calculation system that uses object dimensions to determine overall tension. This segmentation allows the physical measurement device to be simple and easy to operate in constrained spaces, while the computational aspect maintains measurement precision
Solution Approach 2:
The patent introduces object dimension data as an intermediary element that bridges the gap between single-point local tension measurement and overall tension determination. By using the known dimensions of the test object, the system can calculate overall tension from local measurements, maintaining precision without requiring multiple contact points
3Ease of operation
If a single probe contacts the test object at one location, then ease of operation in constrained environments is improved, but measurement precision may deteriorate
Solution Approach 1:
The patent uses feedback from displacement detection (when the test object moves a predetermined distance) to trigger the measurement and from known object dimensions to calculate overall tension from local measurements. This feedback mechanism ensures that the single-point measurement accurately reflects overall tension, maintaining precision while enabling easy operation in constrained environments
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 less invasive and more accurate tension measurement by contacting the test object at a single point, allowing for precise local tension assessment that can be extrapolated to overall tension, improving usability in constrained environments.
Implementation Method 1
a sensor that detects the force that the probe exerts upon the test object
Implementation Method 2
a switch that signals the sensor indicating the test object has been displaced a particular distance
Data Source
AI summary
The present disclosure includes devices and method for measuring tension in a test object. An example device includes a probe configured to exert a force upon a test object at a particular location, a sensor that detects the force that the probe exerts upon the test object, and a switch that signals the sensor indicating the test object has been displaced a particular distance and/or angle, such that the sensor measures the force at a time when the test object has been displaced the particular distance and/or angle.