Movable Sensor Test System for Cylinder Bore Diameter Measurement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing test systems struggle to accurately examine hollow bodies of varying dimensions, particularly cylinder bores in engine blocks, due to differences in their dimensions and the limitations of rigidly connected sensors with limited measuring ranges.
Innovation Solution
The system employs movable sensors that can be adjusted radially and calibrated using a reference station to determine internal diameters accurately, allowing for precise measurement regardless of the hollow body's size and orientation, and includes a calibrating process to account for deviations in sensor positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If rigidly connected sensors with fixed measuring ranges are used, then the device structure is simple, but the system cannot accurately measure hollow bodies of varying dimensions
Solution Approach 1:
The patent applies the dynamics principle by making the sensors movable relative to the elongate body through a positioning mechanism. This allows the sensors to be dynamically adjusted to different measuring positions and orientations, enabling accurate measurement of hollow bodies with varying dimensions while maintaining a relatively simple overall device structure.
2Adaptability or versatility
If movable sensors with adjustable positions are implemented, then the system can measure various hollow body dimensions, but the device complexity increases
Solution Approach 1:
The patent implements universality by designing a sensor positioning mechanism that can accommodate multiple measuring positions and orientations. This single mechanism serves multiple functions by enabling the sensors to measure various hollow body dimensions and shapes, thereby achieving high adaptability without proportionally increasing device complexity.
3Adaptability or versatility
If sensors are moved to different measuring positions, then measurements can be adapted to different hollow bodies, but measurement accuracy may be affected by positioning deviations
Solution Approach 1:
The patent applies feedback by implementing a calibration process that determines the actual measuring positions of the sensors relative to the elongate body. This calibration information is used to correct measurement data, compensating for any positioning deviations and ensuring high measurement accuracy across different measuring positions and hollow body types.
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 approach enables precise determination of internal diameters in hollow bodies of different sizes, ensuring high accuracy and flexibility in measuring various engine block cylinder bores, even when sensors are not perfectly aligned, and allows for the calculation of coating thickness before and after application.
Implementation Method 1
the sensors record distance measurement data regarding their distance to an inner wall of the hollow body
Data Source
AI summary
A test system for examining a hollow body, in particular a cylinder bore in an engine block, comprises a measuring apparatus comprising an elongate body and a plurality of sensors which are connected to the body and are set up to carry out a distance measurement. The test system also comprises electronic control means which are set up to move the measuring apparatus into a hollow body to be examined and to determine an internal diameter of the hollow body on the basis of distance measurement data from the sensors. In order to examine hollow bodies of different diameters, at least some of the sensors are in the form of movable sensors which can be moved relative to the elongate body of the measuring apparatus. The electronic control means are also set up to select a measuring position of the movable sensors relative to the elongate body on the basis of a hollow body to be examined. A calibration station is provided and the electronic control means are set up to carry out a calibration process for the movable sensors. A corresponding method is also disclosed.