Gas Regulator with Induced EMF Pressure Sensing
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Solution Overview
Problem
Conventional gas regulators cannot indicate changes in gas pressure of the gas source, limiting their functionality.
Innovation Solution
A gas regulator design that includes a valve block, a membrane, a metal coil, a movable member with a magnetic element, and a shielding member, where the metal coil generates an induced emf in response to pressure changes, allowing for precise indication of gas pressure through a processor, wireless signal sending circuit, monitor, and speaker for user notification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional gas regulator is used for pressure regulation, then gas pressure stability is improved, but the ability to indicate gas source pressure changes deteriorates
Solution Approach 1:
A magnetic element is introduced as an intermediary component that translates pressure changes into magnetic field changes. The magnetic element is positioned such that pressure variations cause it to move, generating corresponding magnetic field variations that can be detected and converted into electrical signals for indication, thus bridging the gap between pressure regulation and pressure indication functions
Solution Approach 2:
The patent replaces purely mechanical pressure indication methods with an electromagnetic detection system. A metal coil generates an induced electromotive force (emf) in response to the magnetic element's movement caused by pressure changes. This electromagnetic substitution allows for more precise and reliable pressure indication while maintaining the mechanical pressure regulation function
2Measurement precision
If a metal coil and magnetic element are added to indicate pressure changes, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The magnetic element serves multiple functions: it acts as both a regulator component (controlling gas flow) and a sensing element (indicating pressure changes). The metal coil also has dual functionality as both a magnetic field generator and a signal generator through electromagnetic induction. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity
Solution Approach 2:
The patent utilizes changes in magnetic field parameters (strength and direction) in response to pressure changes. The metal coil converts these magnetic parameter changes into electrical signal parameter changes through electromagnetic induction. This parameter transformation approach enables precise measurement without requiring complex mechanical measurement mechanisms
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
Enables precise indication and notification of gas pressure changes, allowing users to monitor and prepare for gas supply depletion, enhancing the functionality of gas regulators beyond mere pressure regulation.
Implementation Method 1
the metal coil generates an induced emf because of being affected by magnetism of the magnetic element
Data Source
AI summary
A gas regulator includes a valve block, a pressure regulating assembly, and a metal coil. The valve block includes an input gateway, an output gateway, and a pressure reducing chamber. The metal coil is provided in the pressure reducing chamber. The pressure regulating assembly includes a membrane provided in the pressure reducing chamber, a movable member connected to the membrane, and a shielding member connected to the movable member, wherein the movable member has a magnetic element received in the metal coil. The membrane deforms with gas pressure changes of a connected gas source, and makes the movable member move the shielding member to change an output gas flow of the input gateway. The magnetic element is then moved relatively to the metal coil to generate an induced emf, which precisely indicates the gas pressure changes of the gas source.