Optically Out-of-Phase Flow Gauge Scales
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Solution Overview
Problem
Conventional flow gauge regulators often have cluttered and hard-to-read scales due to aligned measurement indicators, which can lead to inaccurate gas flow rate readings and increased wear or quicker consumption in downstream operations.
Innovation Solution
A flow gauge scale assembly featuring optically out-of-phase scales on a transparent cylindrical flow tube, where the first scale is positioned in a radial zone that is at least partially offset from the direct field of view of the second scale, ensuring each scale is legible, uncluttered, and unobstructed, improving readability and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple scales are disposed on the flow tube to provide multiple flow rate measurements, then the versatility and information provided by the gauge is improved, but the scales become cluttered and hard to read due to overlapping indicators
Solution Approach 1:
The patent resolves the clutter problem by transitioning from a two-dimensional overlapping scale arrangement to a three-dimensional staggered arrangement. The first and second scales are positioned at different angular positions around the flow tube circumference, creating optical separation. This allows multiple flow rate scales to coexist without visual interference, maintaining both versatility and readability simultaneously.
Solution Approach 2:
The patent divides the single gauge face into multiple segmented scale zones arranged circumferentially around the flow tube. Each scale is confined to its own angular sector, creating distinct reading zones. This segmentation prevents visual clutter by ensuring that indicators for different gases flow rates do not overlap in the user's field of view.
2Device complexity
If aligned scales are used to simplify the gauge structure, then the device complexity is reduced, but the measurement precision deteriorates due to visual clutter and reading errors
Solution Approach 1:
The patent maintains structural simplicity while improving measurement precision by utilizing the circumferential dimension of the cylindrical flow tube. Scales are arranged at different angular positions rather than overlapping radially, creating clear visual separation for accurate reading. This approach preserves the simplicity of the ball gauge mechanism while eliminating reading errors caused by clutter.
3Ease of operation
If scales are positioned to be optically out of phase, then the readability and clarity of each scale is improved, but the angular space and device dimensions increase
Solution Approach 1:
The patent optimizes the angular space utilization by assigning each scale to a specific angular zone around the flow tube. The scales are positioned to utilize unused circumferential space, with each scale occupying its own local sector. This approach improves readability while minimizing the total angular footprint of the gauge assembly.
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
The optically out-of-phase scales enhance the clarity and accuracy of gas flow rate measurements, reducing errors and extending the operational lifespan by providing clear and unobstructed readings.
Implementation Method 1
pressure inside the regulator causes the ball to float up within the gauge to align with markings on the gauge to provide an indication of the flow rate
Implementation Method 2
a first scale disposed on the generally cylindrical flow tube, and a second scale disposed on the generally cylindrical flow tube in a position that is at least partially optically out of phase from the first scale
Data Source
AI summary
A flow gauge scale assembly includes a first scale and a second scale. The first scale is configured to be disposed in a first radial position on a generally cylindrical flow tube through which a ball can move to indicate a flow rate of a flow of gas. The second scale is configured to be disposed in a second radial position that will be at least partially optically misaligned from the first scale when the flow gauge scale assembly is installed in the generally cylindrical flow tube.