Sensor-Integrated Measuring Element for Load Direction Differentiation
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Solution Overview
Problem
Existing methods for measuring component loads using sensors like strain gauges are complicated in series production and lack sensitivity, hysteresis, and clear differentiation between load directions.
Innovation Solution
The sensor is positioned to match the line of action of the contact angle, allowing for separate determination of axial and radial loads, with additional sensors arranged orthogonally or in planes to enhance sensitivity and temperature compensation, and the measuring element is designed to be inserted in various orientations within the component for optimal positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If strain gauges are bonded directly onto the component to be measured, then the measurement can be performed, but the mounting is complicated in series production and requires individual adhesive mounting and wire connection
Solution Approach 1:
The patent combines the sensor (strain gauge) with the measuring element into a preassembled unit. The sensor is integrated onto the measuring element during manufacturing, and this complete assembly is then inserted as a single unit into the component's recess. This eliminates the need for individual adhesive mounting and wire connection during assembly, significantly simplifying series production while maintaining measurement capability.
2Measurement precision
If the sensor is positioned to match the line of action of the contact angle, then the differentiation between load directions is improved, but the sensor positioning becomes more critical and complex
Solution Approach 1:
The sensor is prepositioned on the measuring element during manufacturing at the optimal location that corresponds to the line of action of the contact angle. This preliminary positioning ensures that when the preassembled measuring element with sensor is inserted into the component, the sensor is already in the correct position for accurate load direction differentiation, eliminating the need for complex field adjustments.
Solution Approach 2:
The sensor is positioned at a specific location on the measuring element where the contact angle line of action passes through. This localized positioning concentrates the measurement function at the most informative point, enabling accurate differentiation between load directions without requiring complex positioning mechanisms throughout the entire device.
3Measurement precision
If multiple sensors are arranged orthogonally or in planes, then the sensitivity and temperature compensation are improved, but the device complexity increases
Solution Approach 1:
Multiple sensors arranged orthogonally or in planes are integrated onto the measuring element during manufacturing. This merging of multiple sensing functions into a single preassembled unit provides improved sensitivity and temperature compensation while maintaining manageable complexity, as the sensors are already positioned and connected during production rather than during field installation.
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
This configuration improves signal quality by enabling better differentiation between load directions, increased sensitivity, and reduced hysteresis, allowing for precise measurement of load magnitudes and directions, while maintaining the component's original state.
Implementation Method 1
The sensor of the component according to the invention can be an element of the following group that is sensitive to strain or pressure: strain gauge, thin film strain gauge, piezo element, piezo film, fiber Bragg grating, polymer optical fiber sensor, load cell
Implementation Method 2
The sensor of the component according to the invention can be an element of the following group that is sensitive to strain or pressure: strain gauge, thin film strain gauge, piezo element, piezo film, fiber Bragg grating, polymer optical fiber sensor, load cell
Data Source
AI summary
The invention relates to a component with a material recess and a measuring element comprising at least one sensor which is inserted with a positive fit in the material recess. This sensor is arranged in such a manner in or on the measuring element such that the measuring direction of the sensor essentially corresponds to the action line of the contact angle.