Differential Pressure Gauge Rotating Positional Element
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing differential pressure gauges face issues with high costs, increased errors due to contamination, and interference from debris when using magnetic sensors, which are complex and require additional components.
Innovation Solution
A differential pressure gauge design featuring a rotating positional element located remote from the piston, utilizing a flexible member and a magnetic field sensor in a separate housing to minimize interference and errors, while being inexpensive and reliable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a magnetic sensor is used to sense the position of the piston, then the position can be sensed, but the cost increases, errors increase due to contamination, and interference from debris occurs
Solution Approach 1:
The patent extracts the magnetic sensor from the chamber environment and places it in a separate housing, removing it from the harmful contaminants and debris. The flexible member transmits motion remotely, allowing the sensor to sense positional changes without being exposed to contamination sources.
Solution Approach 2:
The flexible member acts as an intermediary that transmits the piston's linear motion to the rotating member, which then transmits rotational motion to the positional element. This chain of intermediaries allows the magnetic sensor to detect position indirectly without being exposed to the harsh chamber environment.
2Measurement precision
If a magnetic sensor is used to sense the position of the piston, then the position can be sensed, but the device complexity increases due to numerous components
Solution Approach 1:
The flexible member serves multiple functions: it transmits linear motion from the piston, converts it to rotational motion of the rotating member, and simultaneously transmits the rotational position to the positional element. This multi-functionality reduces the need for additional transmission components.
Solution Approach 2:
The patent combines the sensing function with the positional element on the rotating member, rather than requiring a separate sensor mounted on the piston. This integration reduces component count while maintaining sensing capability.
3Measurement precision
If a magnetic sensor is used to sense the position of the piston, then the position can be sensed, but interference from contaminants occurs
Solution Approach 1:
The magnetic sensor is extracted from the chamber and placed in a separate housing, removing it from the environment where contaminants and debris can cause interference. The sensor detects position through the flexible member's motion transmission without being physically exposed to harmful factors.
4Measurement precision
If the positional element is located close to the piston, then the measurement is direct, but friction and interference increase
Solution Approach 1:
The flexible member and rotating member act as intermediaries that transmit positional information from the piston to the positional element without requiring direct contact between the piston and sensor. This indirect transmission eliminates friction and interference while preserving measurement accuracy.
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 solution provides accurate and reliable differential pressure measurements with reduced interference and contamination risks, using fewer components and lower costs, ensuring minimal errors and increased durability.
Implementation Method 1
a flexible member having a first end and a second end. The first end of the flexible member is attached to the piston... A linear movement of the flexible member allows the rotating member and the positional element to rotate
Implementation Method 2
a magnetic field sensor disposed in a second housing separate from the first housing and is capable of sensing a rotational movement of the magnet
Data Source
AI summary
A sensor assembly including a flexible member having a first end and a second end, a rotating member connected to the second end of the flexible member, a positional element disposed on the rotating member, and a sensor capable of sensing a movement of the positional element. A movement of the second end of the flexible member allows the rotating member and the positional element to rotate.