Standard Inductance Box Using Segmented Physical and Analogous Sections
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current standard inductance boxes have a limited measuring range from 1 μH to 1 H, are large and heavy, making them inconvenient for field applications and unable to meet the requirements for inductance unit transfer and calibration, especially with the need for a wider range up to 500 H.
Innovation Solution
A standard inductance box with an extended range from 1 μH to 500 H is designed using both actual and analogous inductance box sections, featuring 1, 2, and 5 step increments, with actual inductors wound on a bracelet core and analogous inductors providing a compact, lightweight solution, including outputs through insulators and change-over switches for precise adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If decimal inductance boxes with range from 1 μH to 1 H are used, then inductance measurement coverage is provided, but the measuring range is limited and the device size and weight are large
Solution Approach 1:
The patent divides the inductance box into two separate sections: an actual inductance box section for low inductance values (1 μH to 500 mH) and an analogous inductance box section for high inductance values (1 H to 500 H). This segmentation allows each section to be optimized independently, with the analogous section using lightweight simulated inductors instead of heavy physical coils for high inductance values, thereby extending the inductance range while reducing overall device weight.
Solution Approach 2:
The patent employs analogous inductors that replicate the electrical characteristics of high inductance values without using physical coils of corresponding size and weight. The analogous inductance box section uses simulated inductance elements that copy the electrical behavior of 1 H to 500 H inductors, enabling the device to achieve extended inductance range coverage while maintaining a compact and lightweight form factor.
2Quantity of substance
If actual inductors with large inductance values are used, then inductance range is extended, but the device becomes large and heavy making it inconvenient for field application
Solution Approach 1:
The analogous inductance box section uses simulated inductance elements that replicate the electrical characteristics of high inductance values (1 H to 500 H) without requiring physical coils of corresponding size and weight. This copying approach enables the device to provide extended inductance range coverage while maintaining a compact, lightweight form factor suitable for portable field applications.
Solution Approach 2:
The patent changes the physical implementation parameters of high inductance elements by transitioning from actual coil inductors to analogous simulated inductors. This parameter change allows the same electrical function (providing high inductance values) to be achieved with dramatically reduced physical dimensions and weight, thereby improving portability and ease of field operation.
3Measurement precision
If existing inductance boxes with range from 1 μH to 1 H are used, then decimal inductance measurement is provided, but the range cannot meet the requirements for inductance unit transfer and calibration
Solution Approach 1:
The patent segments the inductance measurement function into two specialized sections: the actual inductance box section handles precise measurements from 1 μH to 500 mH using physical coils, while the analogous inductance box section extends the range to 1 H to 500 H using simulated inductors. This segmentation enables the device to meet both precision measurement requirements and extended range requirements for inductance unit transfer and calibration applications.
Solution Approach 2:
The patent creates a universal inductance box that can perform multiple functions: precise decimal inductance measurement (1 μH to 1 H range), extended range calibration (up to 500 H), and both actual and analogous inductance modes. This multi-functionality allows a single device to replace multiple specialized instruments, meeting diverse requirements for inductance unit transfer and calibration across different applications.
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 new design significantly increases the inductance range, reduces the size and weight of the device, making it more portable and suitable for field applications while maintaining precision through open- and short-circuit compensation settings.
Implementation Method 1
the actual inductors being connected with the actual inductance change-over switch, which is connected to the actual inductance output ports; the actual inductance box section being an inductance box with 1, 2, and 5 step increments; and the inductance range of the actual inductance box section being from 1 μH to 500 mH with copper wire wounded coil on a bracelet core
Data Source
AI summary
A standard inductance box, relating to the fields of measurement or calibration, and relating in particular to a standard gauge for transferring an inductance parameter. The standard inductance box uses unary, binary and quinary, and comprises a physical inductance box section and a simulated inductance box section, said sections being respectively arranged in a metal box. Electrodes of the physical inductance box section and the simulated inductance box section are led out. The inductance range of the standard inductance box is 1 μH-500 H. The described means achieve an inductance range of 1 μH-500 H, expanding the inductance range in the prior art, and the application of a simulated inductance box. Using unary, binary and quinary standards reduces the size and weight of the physical inductance box section, facilitating transportation and use in the field.