Particulate High-Energy Resistors With Pressure-Tuned Resistance
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Solution Overview
Problem
Conventional high-energy resistors, particularly those with solid or liquid cores, face challenges such as structural weakness, resistance variability, and maintenance issues, which hinder their performance in high-power and high-energy applications.
Innovation Solution
The development of high-energy resistors using unbound particulate material as the resistive body, which allows for a wide range of resistance values and precise tuning by adjusting the mixing ratio and applied pressure, enabling accurate resistance maintenance over the lifetime of the resistor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If solid or liquid cores are used in conventional high-energy resistors, then the structural strength is improved, but the resistance variability and maintenance issues worsen
Solution Approach 1:
The patent applies parameter changes by transitioning from solid/liquid cores to unbound particulate material, and by enabling continuous adjustment of resistance through pressure control. The particulate material's resistance can be tuned by changing packing density and applied pressure, providing both structural integrity and resistance stability without the variability issues of conventional cores.
Solution Approach 2:
The patent uses composite materials by combining unbound particulate material with a container structure and clamping assembly. This composite approach creates a resilient resistive body that maintains structural strength while allowing resistance adjustment, solving both the strength and reliability requirements simultaneously.
2Ease of manufacture
If fixed resistance values are used in conventional resistors, then the manufacturing simplicity is improved, but the adaptability to different applications worsens
Solution Approach 1:
The patent applies dynamics by making the resistance value adjustable rather than fixed. The clamping assembly enables continuous modification of resistance throughout the resistor's lifetime by adjusting pressure on the particulate material. This dynamic capability allows a single device to adapt to multiple applications while maintaining manufacturing simplicity through a standardized adjustable design.
Solution Approach 2:
The patent enables wide adaptability by allowing continuous adjustment of resistance parameters through pressure control and mixing ratio modification. The same basic structure can be tuned to provide different resistance values, transforming a single manufacturing process into a versatile solution for various applications.
3Measurement precision
If high pressure is applied to tune resistance accuracy, then the resistance precision is improved, but the device complexity worsens
Solution Approach 1:
The patent achieves high resistance accuracy (±1% or better) through controlled pressure application to the particulate material. The clamping assembly provides a practical mechanism for applying and maintaining this pressure, with the complexity justified by the significant improvement in resistance precision and long-term stability.
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
These particulate resistors offer high accuracy and durability, maintaining resistance values within ±1% over extended periods, even at high power and energy levels, and can withstand energy levels of up to 100,000 Joules and peak power levels of 10,000 watts.
Implementation Method 1
The unbound particulate material can include two or more different types of particulate materials and a mixing ratio of the two or more particulate materials and pressure applied to the resistive cores can determine, at least in part, the resistance value of the high-energy resistor
Implementation Method 2
a clamping assembly to hold the second contact with respect to the first contact and maintain a constant pressure applied by the first contact and the second contact on the unbound particulate material throughout use of the resistor
Data Source
AI summary
A high-energy resistor has a resistive body comprising unbound particulate material. The resistance value of the resistor can be determined in part by a mixing ratio of components in the unbound particulate material and a pressure applied to the particulate material. For a selected mixing ratio, the resistance of the assembled resistor can be adjusted to obtain a selected resistance value with high accuracy by changing pressure on the unbound particulate material. Such adjustment can be made readily by a user before and/or after the resistor is installed in a system. The adjustment can be automated and made during operation of the system to maintain a resistance value precisely.