Bow-Mountable Laser Speed Measurement Instrument
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In archery, accurately measuring arrow speed and maintaining bow stability while shooting at 3D targets are challenging due to the need for precise aim and steady hand, especially in low light conditions.
Innovation Solution
A system comprising a bow-mountable laser-based speed measurement instrument and a bow movement sensor system, which includes a speed sensor bar and a processor for calculating arrow speed, and a bow movement sensor with accelerometer or rate gyro for indicating bow movement, enhancing stability and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a laser-based speed measurement instrument is mounted on the bow, then arrow speed measurement accuracy is improved, but device complexity increases
Solution Approach 1:
The patent combines the laser-based speed measurement instrument with the bow movement sensor system into an integrated mounting assembly that attaches to the bow's stabilizer mounting hole. This merging of multiple measurement functions into a single integrated device reduces overall system complexity while maintaining measurement precision for both arrow speed and bow stability.
Solution Approach 2:
The mounting system is designed to accommodate multiple types of sensors and measurement instruments on a single bow interface. The universal mounting bracket can hold the laser speed measurement instrument, bow movement sensors, and other archery equipment, allowing one mounting structure to serve multiple measurement functions simultaneously.
2Measurement precision
If a bow movement sensor system is added to monitor bow stability, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The bow movement sensor system is merged with the laser speed measurement instrument mounting structure. Both the speed measurement instrument and the movement sensors (accelerometer and rate gyro) share a common mounting interface on the bow, reducing the number of separate mounting systems needed and simplifying the overall device complexity while maintaining measurement precision.
Solution Approach 2:
The movement sensing module is housed within a compact package that integrates with the mounting bracket structure. The accelerometer and rate gyro are nested within the same mounting assembly as the laser instrument, with the communication module and power source integrated into the same structural envelope, creating a nested configuration that minimizes overall system complexity.
3Measurement precision
If plano-convex lenses are attached to provide divergent cones of laser energy, then measurement precision is improved, but device complexity increases
Solution Approach 1:
Plano-convex lenses are attached selectively to the transmission and reception apertures of the laser-based speed measurement instrument. The lenses are positioned at specific locations where laser energy divergence is needed, rather than applying optical elements uniformly across the entire device. This localized application of optical quality improvement maintains measurement precision while minimizing added complexity.
4Ease of operation
If the speed measurement instrument is mounted on the bow with one hand, then ease of operation is improved, but bow stability deteriorates
Solution Approach 1:
The laser speed measurement instrument is merged with the bow's stabilizer mounting system, creating an integrated assembly where the instrument becomes part of the bow's structural configuration. This merging allows the archer to support the instrument weight through the bow's existing stabilizer structure rather than holding it separately, improving ease of operation while maintaining bow stability through the combined structure.
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 system provides accurate arrow speed measurement and enhances bow stability, allowing archers to improve their aim and accuracy, especially in low light conditions and when shooting at 3D targets.
Implementation Method 1
a bow mountable laser-based speed measurement instrument
Implementation Method 2
The bow movement sensor may also be configured utilizing either an accelerometer or rate gyro in a small package for mounting on a convenient location on a bow
Data Source
AI summary
Systems and techniques for facilitating archery implemented in conjunction with a bow mountable laser-based speed measurement instrument or a speed sensor bar as well as a bow movement sensor system which may be affixed to any of the available mounting positions on a conventional bow.