Insulative Barrier in Conductive Sensor Case
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The metallic case packaging in electromagnetic sensors can interfere with the sensor's operation by altering the path between the cathode and anode, leading to decreased signal fidelity, calibration issues, and operational problems.
Innovation Solution
A robust and cost-effective sensor design featuring a metallic case with an insulative barrier to prevent electron flow to the case, using a sealed environment with a different pressure and gas composition, and incorporating a window for photon passage, along with insulators to disrupt electron conduction to the case.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a metallic case is used to package the cathode and anode, then the sensor becomes more robust and cost-effective, but the metallic case interferes with sensor operation by altering the electron path between cathode and anode
Solution Approach 1:
An insulative barrier is introduced as an intermediary component between the metallic case and the cathode-anode assembly. This barrier prevents direct electrical contact between the conductive case and the electron path, eliminating the harmful interference while preserving the mechanical protection and structural integrity provided by the metallic case.
2Ease of manufacture
If a metallic case is used to package the cathode and anode, then manufacturing cost is reduced, but calibration precision deteriorates due to altered electron paths
Solution Approach 1:
The insulative barrier serves as a mediator that allows the use of inexpensive metallic cases while preventing calibration errors. By blocking the unwanted electron conduction path to the case, the barrier ensures that electron flow remains confined to the intended cathode-anode path, thereby maintaining calibration precision despite the cost-effective metallic packaging.
3Strength
If a metallic case is used for sensor packaging, then operational reliability improves through robust protection, but harmful electron conduction to the case increases
Solution Approach 1:
The harmful electron conduction path to the metallic case is extracted or removed from the system by introducing the insulative barrier. This barrier effectively takes out the unwanted electrical connection between the cathode-anode assembly and the case, eliminating the harmful factor while retaining the protective enclosure.
Solution Approach 2:
The insulative barrier acts as an intermediary that physically separates the conductive case from the active electron path. This intermediary layer allows the metallic case to provide mechanical protection while preventing it from participating in the electrical discharge, thereby eliminating the harmful electron conduction to the case.
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 design enhances signal fidelity and calibration precision while maintaining operational reliability by preventing electron interference with the sensor's operation, offering a versatile solution for various applications.
Implementation Method 1
an insulative barrier to prevent electron flow to the case
Implementation Method 2
using a sealed environment with a different pressure and gas composition
Implementation Method 3
incorporating a window for photon passage
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
One embodiment includes an electromagnetic sensor which includes a header, an anode connected to a first terminal extending through the header, the anode in electrical isolation from the header, a cathode connected to a second terminal extending through the header, the cathode in electrical isolation from the header, a conductive case including a window transparent to electromagnetic energy, the conductive case enclosing the anode and the cathode and hermetically sealed to the header and an insulative sleeve disposed between the anode and the case and between the cathode and the conductive case.