Gradient Thermal Target Using Variable Resistive Traces
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Solution Overview
Problem
Current thermal targets lack accuracy in replicating thermal signatures and consume excessive power, necessitating the development of methods and apparatuses that can produce gradient thermal signatures with reduced power consumption and utilize Power On Demand (POD) units, as well as integrate resistive and conductive inks for printing.
Innovation Solution
The use of resistive matrices with varying trace widths and hybrid print heads to create gradient thermal signatures, combined with Power On Demand (POD) units and the integration of resistive and conductive inks for precise thermal image generation, allowing for accurate thermal signature replication and reduced power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional thermal targets are used to replicate thermal signatures, then thermal signature accuracy is improved, but power consumption increases
Solution Approach 1:
The patent applies local quality by varying the thickness of resistive materials in different regions of the thermal target to create gradient thermal signatures. This allows different parts of the target to have different thermal properties, accurately replicating the non-uniform thermal distribution of real objects while controlling power consumption through localized resistance adjustments rather than uniform high-power heating
Solution Approach 2:
The patent implements dynamics through Power On Demand (POD) units that dynamically adjust power delivery to the thermal target based on operational requirements. The system transitions from static continuous power consumption to dynamic power management, activating heating elements only when and where needed, thereby reducing overall power consumption while maintaining thermal signature accuracy during active use
2Use of energy by moving object
If Power On Demand units are implemented to reduce power consumption, then power efficiency is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the thermal target into multiple independently controllable regions or zones, each managed by separate Power On Demand units. This modular approach allows the system to activate only the necessary segments based on detection needs, improving power efficiency while keeping the complexity of each individual segment manageable and standardized
Solution Approach 2:
The patent implements universality through POD units that serve multiple functions: they provide power management, thermal control, and potentially detection capabilities in integrated components. This multi-functionality reduces the need for separate dedicated components for each function, thereby improving power efficiency without proportionally increasing overall device complexity
3Measurement precision
If gradient thermal signatures are created using varied resistive material thickness, then thermal signature realism is improved, but manufacturing complexity increases
Solution Approach 1:
The patent applies parameter changes by systematically varying the thickness parameter of resistive materials across different regions of the thermal target. This controlled variation in a single physical parameter (thickness) creates the desired gradient thermal signatures while maintaining manufacturing feasibility through standardized fabrication processes that can accommodate gradual parameter transitions
Solution Approach 2:
The patent implements composite materials by combining resistive materials with different thickness profiles or compositional variations to achieve specific thermal properties in different regions. This use of composite structures allows the creation of complex gradient thermal signatures through material selection and layering rather than requiring complex geometric variations, simplifying the manufacturing process while maintaining thermal signature realism
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 approach enables the creation of realistic thermal targets with improved accuracy and reduced power consumption, enabling efficient battery operation and dynamic thermal signature control, enhancing simulation scenarios and target detection capabilities.
Implementation Method 1
The thickness of resistive materials may be varied to achieve a gradient thermal signature
Implementation Method 2
a photo resistive matrix can be used to determine laser impacts on a thermal or standard target
Data Source
AI summary
A thermal signal generating device, including at least two parallel buss bars operable for carrying a current and a heating element having at least a first region and a second region. The heating element includes a plurality of horizontal traces and a plurality of vertical traces. Widths of each of the plurality of horizontal and vertical traces may be greater in a first region of the heating element than in a second region of the heating element, allowing for a gradient heat differential to be emitted by the heating element.