Orientation Indication Device Using Gravity-Referenced Rods
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Solution Overview
Problem
Conventional orientation indicating devices, such as gyroscopes and gimbals, face limitations in determining orientation beyond certain tilt and pan limits, and are often expensive to manufacture due to complex result obtaining techniques.
Innovation Solution
An orientation indicating device comprising a rod structure with heavier rods pointing towards gravity, enclosed in a spherical structure with rollers for free rotation, allowing determination of pitch, roll, and yaw axes without imbalance forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional gyroscopes and gimbals are used to determine orientation, then orientation can be determined, but the device becomes expensive to manufacture and has complex result obtaining techniques
Solution Approach 1:
The device segments the orientation determination function into three independent rod structures, each responsible for one Euler angle (pitch, roll, yaw). Each rod can independently indicate its respective angle, eliminating the need for complex integrated computation systems found in conventional gyroscopes.
Solution Approach 2:
The patent replaces complex electronic computation systems with a purely mechanical indication mechanism. The rods physically align with gravitational and inertial forces to directly display orientation angles, substituting electronic sensors and processors with mechanical gravity-reference indicators.
2Measurement precision
If conventional gyroscopes are used to determine orientation, then pitch, roll and yaw can be determined, but the device fails when tilt and pan exceed prescribed limits
Solution Approach 1:
Instead of trying to keep the sensing mechanism fixed and rotating the object, the patent inverts the approach by allowing the rods to freely rotate and align themselves with the gravitational field. This passive alignment method has no inherent tilt limits because the rods simply follow gravity's direction regardless of the device's orientation.
Solution Approach 2:
The rod structures are designed to be dynamically adjustable, freely rotating about their respective axes to continuously align with gravitational and inertial forces. This dynamic adaptation allows the device to maintain accuracy across all orientation ranges without mechanical limits.
3Measurement precision
If heavier rods are used to point towards gravity for orientation indication, then gravity reference is achieved, but imbalance forces may affect rotation
Solution Approach 1:
The patent intentionally creates asymmetric weight distribution in each rod, with one end heavier than the other. This asymmetry is deliberate and controlled, allowing each rod to naturally align with gravitational forces while the rod's rotational freedom compensates for any imbalance forces, actually enhancing gravity reference accuracy.
Solution Approach 2:
The heavier portions of the rods are positioned to create a stable gravitational reference point. By concentrating mass at specific locations, the rods establish equipotential alignment with gravity, ensuring that the heavier end consistently points toward the gravitational source regardless of rotational position.
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 device effectively determines orientation across three mutually perpendicular axes, overcoming the limitations of conventional systems by using a balanced rod structure with rollers for precise orientation indication, reducing manufacturing costs and complexity.
Implementation Method 1
at least one rod of the plurality of rods is configured to be heavier than the other rods, and said heavier rod is adapted to point towards gravity
Implementation Method 2
At least one roller provisioned in-between an inner surface of the enclosure and a free end of each of the plurality of rods
Data Source
AI summary
An orientation indicating device, the device comprises an enclosure, a plurality of rods fixed together at their one end forming a rod structure. The rod structure is rotatably mounted inside the enclosure. At least one roller provisioned in-between an inner surface of the enclosure and a free end of each of the plurality of rods. Further, at least one rod of the plurality of rods is configured to be heavier than the other rods, and said heavier rod is adapted to point towards gravity.