Optical Device for Cylindrical Body Deflection Measurement
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Solution Overview
Problem
Existing methods fail to precisely measure bending strains in cylindrical structures like utility poles, leading to potential accidents due to inadequate assessment of long-term bending loads.
Innovation Solution
An optical device equipped with a telescope and a projection plate featuring concentric circular reference scales, along with measurement and calculation means to determine the view angle, elevation angle, and coordinates of the cylindrical body, allowing for precise measurement of bending strains using laser or ultrasonic waves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional measurement methods are used for cylindrical structures, then the measurement process is simple, but the measurement precision of bending strains is insufficient
Solution Approach 1:
The reference scale on the projection plate is designed with concentric circular arcs that correspond to the cylindrical shape of the utility pole. This curved reference scale allows direct optical measurement of bending strains by comparing the pole's position against the circular reference markers, achieving precise measurement while maintaining relatively simple device structure.
Solution Approach 2:
The invention introduces a new measurement dimension by projecting the cylindrical utility pole onto a 2D projection plate with concentric circular reference scales. This transforms the 3D bending strain measurement problem into a 2D coordinate comparison problem, enabling precise measurement through the relationship between radial distance from the circle center and the pole's position.
2Productivity
If traditional surveying methods are used, then the device structure is simple, but the measurement of deflection conditions is not accurate and time-consuming
Solution Approach 1:
The invention replaces traditional mechanical surveying methods with an optical measurement system. A telescope with a projection plate containing concentric circular reference scales allows operators to visually determine the utility pole's position and deflection by comparing it against the reference circles, significantly improving both measurement speed and precision over conventional mechanical surveying tools.
Solution Approach 2:
The projection plate creates an optical copy or representation of the utility pole's cross-section by projecting its image onto the concentric circular reference scales. This optical copying allows rapid assessment of the pole's deflection condition by directly comparing the projected image position against the reference circle patterns, enabling quick and accurate measurements.
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 accurate and rapid assessment of deflection in cylindrical structures, preventing accidents by providing reliable measurements of bending strains in utility poles and similar structures.
Implementation Method 1
the measurement means (20) has a measurement section using laser or ultrasonic wave
Implementation Method 2
the measurement means (20) has a measurement section using laser or ultrasonic wave
Data Source
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AI summary
An optical device capable of measuring a condition such as deflection of a cylindrical body such as utility pole or cylindrical column precisely and rapidly is provided. The optical device (10) has a telescope (16) with a projection plate (46). The projection plate (46) has a reference scale (50) made of a plurality of full or substantially full circles (51) arranged concentrically about a central axis (18) of the telescope (16) or a plurality of circular arcs (51') arranged symmetrically about the central axis (18).