Fluid Tilt Sensor Segmentation for Rotation Precision
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Solution Overview
Problem
Existing measuring devices face challenges in precisely detecting the tilt angle and direction of a rotational unit's axis relative to a horizontal plane due to the movement of the fluid free surface in the tilt sensor, which affects the accuracy of three-dimensional coordinate measurements, especially when the rotational unit rotates.
Innovation Solution
A measuring device with a base unit and a rotational unit, where the fluid container with a free surface is secured in the base unit, and a light emitting and receiving system is used to emit and receive light from the free surface, allowing the arithmetic controller to calculate the tilt angle and direction by analyzing the light receiving signal, ensuring the free surface remains stationary during rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the fluid container is secured in the rotational unit, then the tilt sensor can detect tilt during rotation, but the fluid free surface moves along with the rotation causing imprecise detection
Solution Approach 1:
The system is divided into two separate units: the base unit contains the fluid container with the free surface, while the rotational unit contains the light emitting and receiving systems. This segmentation allows the fluid to remain stationary in the base unit while the measurement components rotate in the rotational unit, resolving the contradiction between rotation capability and measurement precision.
Solution Approach 2:
Light serves as an intermediary between the rotational unit and the stationary fluid free surface. The light emitting system in the rotational unit emits light to the free surface, and the light receiving system captures the reflected light, enabling tilt measurement without direct mechanical connection between the rotating components and the fluid.
2Adaptability or versatility
If the light emitting system and light receiving system are secured in the rotational unit, then the system can measure tilt during rotation, but the relative position between the systems changes causing measurement errors
Solution Approach 1:
By separating the fluid container from the light emitting and receiving systems into different units (base unit vs. rotational unit), the system eliminates the problem of changing relative positions. The light emitting and receiving systems remain fixed relative to each other in the rotational unit, while the stationary fluid in the base unit provides a consistent reference surface.
3Productivity
If the rotational unit rotates at normal speed, then productivity is maintained, but the fluid free surface movement prevents precise tilt detection
Solution Approach 1:
The segmentation of the fluid container from the rotational unit allows the rotational unit to rotate at normal speeds without disturbing the fluid. The stationary fluid in the base unit maintains a stable free surface, enabling precise tilt detection while maintaining normal rotation speeds and productivity.
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 enables precise detection of the tilt angle and direction of the rotational axis, improving usability and reducing work time, even during tracking operations and in extreme conditions, without the need for slower rotation speeds.
Implementation Method 1
a light receiving system secured in the rotational unit, including a light receiving element to receive the light reflected by the free surface and generate a light receiving signal
Implementation Method 2
a fluid container secured in the base unit, containing fluid forming a free surface
Data Source
AI summary
A measuring device includes a base unit, a rotational unit rotatably provided on the base unit, a fluid container secured in the base unit, containing fluid forming a free surface, a light emitting system secured in the rotational unit to emit light to the free surface in the fluid container, a light receiving system secured in the rotational unit, including a light receiving element to receive the light reflected by the free surface and generate a light receiving signal, and an arithmetic controller which controls the light emitting system and the light receiving system and calculates a tilt of a rotational axis of the rotational unit according to the light receiving signal of the reflected light from the light receiving element.