Thermal Imaging Target With Layered Heat Patterning for Sight Calibration
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Solution Overview
Problem
Thermal imaging gun sights lack a convenient, economical, and effective target for calibration and inspection due to the inability to detect temperature differences on ordinary targets, which are uniformly heated and lack distinct patterns.
Innovation Solution
A thermal imaging target comprising a heat insulation layer, heat conduction layer, flow guiding layer, and self-heating package, with the heat insulation layer having lower conductivity than the conduction layer, forming a pocket structure that maintains a temperature difference for detection by thermal imaging gun sights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If an ordinary target surface is used, then the target is simple and low cost, but the target cannot maintain temperature difference and is invisible to thermal imaging gun sight
Solution Approach 1:
The target surface is segmented into multiple layers with different thermal properties: a heat insulation layer, a heat conduction layer, and a bottom layer. This segmentation allows different regions to perform different thermal functions, creating and maintaining temperature differences that are visible to thermal imaging gun sights while keeping the overall structure simple and low-cost.
Solution Approach 2:
Different layers of the target are given different local thermal qualities: the heat insulation layer has low thermal conductivity to maintain temperature differences, while the heat conduction layer has high thermal conductivity to distribute heat evenly. This local differentiation of material properties enables the target to maintain visible temperature patterns for extended periods.
2Temperature
If heating materials are used to create temperature difference, then thermal patterns can be seen, but the structure becomes complex and manufacturing cost increases
Solution Approach 1:
The heat insulation layer serves multiple functions: it maintains temperature differences for thermal imaging visibility, provides structural support for the target surface, and creates the necessary thermal patterns without requiring additional heating materials or complex mechanisms. This multi-functionality reduces both structural complexity and manufacturing cost.
3Ease of manufacture
If conventional target materials are used, then manufacturing cost is low, but the target cannot be detected by thermal imaging gun sight due to lack of temperature difference
Solution Approach 1:
The thermal conductivity parameter of the target layers is changed to create detectable temperature differences. The heat insulation layer is selected with low thermal conductivity to maintain temperature gradients, while the heat conduction layer has high thermal conductivity for even heat distribution. This parameter optimization enables thermal imaging detection while using simple, low-cost materials and manufacturing processes.
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 target provides a simple, economical, and safe solution with long-lasting temperature differences, enabling accurate calibration and inspection, while being recognizable by both thermal and conventional gun sights.
Implementation Method 1
self-heating material arranged in the self-heating package and configured for generating heat
Implementation Method 2
a heat conduction layer (2) hermetically connected to an edge of the bottom layer (4)... a heat conductibility of the heat insulation layer (1) is lower than that of the heat conduction layer (2), so that a temperature difference is formed between the heat conduction layer (2) and the heat insulation layer (1) during a heat conduction process
Implementation Method 3
the heat insulation layer (1) is attached to an outer surface of the heat conduction layer (2); and wherein a heat conductibility of the heat insulation layer (1) is lower than that of the heat conduction layer (2), so that a temperature difference is formed between the heat conduction layer (2) and the heat insulation layer (1) during a heat conduction process
Data Source
AI summary
A thermal imaging target includes a heating insulation layer, a heat conduction layer, a flow guiding layer, a bottom layer, and a self-heating package; the heat conduction layer bonded to the bottom layer, and an opening formed at the top to form a pocket-shaped structure; the self-heating package placed in a pocket, and a self-heating material arranged in the self-heating package for generating heat; the flow guiding layer placed between the heat conduction layer and the bottom layer to form cross-connected heat dissipation channels for guiding the heat generated by the self-heating package to crisscross flow in the pocket; the heat insulation layer attached to an outer surface of the heat conduction layer; thermal conductivity of the heat insulation layer lower than that of the heat conduction layer, so that a temperature difference is formed between the heat conduction layer and the heat insulation layer during heat conduction.