Wireless Pressure Sensor for Test Leak Device Calibration
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Solution Overview
Problem
Existing test leak devices face challenges in accurately monitoring and calibrating leak rates due to pressure variations, temperature fluctuations, and the need for large, expensive pressure measurement instruments, which can lead to errors and fail to detect gross leaks effectively.
Innovation Solution
The integration of a wireless pressure sensor in the test leak device allows for real-time, independent monitoring of pressure within the compressed gas container, eliminating the need for complex calculations based on temperature measurements, and enables remote calibration and detection of pressure losses using a receiver that can initiate calibration processes and read stored leak rate values via RFID technology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a direct pressure measurement is implemented using traditional pressure measuring instruments, then the pressure can be monitored accurately, but the device becomes large, expensive, and requires cable connections
Solution Approach 1:
The patent replaces traditional mechanical pressure measuring instruments with a wireless electronic pressure sensor. This substitution eliminates the need for large mechanical components and cable connections while maintaining accurate pressure measurement capability. The wireless sensor transmits data electronically, resolving the contradiction between measurement precision and device complexity.
Solution Approach 2:
The patent introduces a wireless communication module as an intermediary between the pressure sensor and the data processing system. This intermediary enables data transmission without physical cable connections, reducing device complexity and installation requirements while preserving accurate pressure monitoring functionality.
2Device complexity
If theoretical calculations based on temperature measurements are used to determine leak rate, then no direct pressure measurement is needed, but large temperature fluctuations or unforeseen pressure losses lead to large errors
Solution Approach 1:
The patent replaces indirect temperature-based calculations with direct electronic pressure sensing. This substitution provides real-time accurate pressure data that directly reflects the actual state of the compressed gas container, eliminating errors from temperature fluctuations and theoretical assumptions while maintaining system simplicity through wireless operation.
Solution Approach 2:
The patent implements continuous pressure monitoring with wireless feedback to a receiver or display device. This real-time feedback mechanism allows immediate detection of pressure changes and leak rate deviations, enabling timely calibration adjustments without the delays and inaccuracies of periodic temperature-based calculations.
3Reliability
If a large compressed gas container is used to maintain stable pressure, then the leak rate remains relatively constant, but the device becomes bulky and less portable
Solution Approach 1:
The patent replaces the mechanical approach of using a large gas container for pressure stability with an electronic pressure sensing and monitoring system. This allows the use of a smaller, more portable gas container while maintaining reliable pressure data through continuous wireless monitoring, thus resolving the contradiction between reliability and portability.
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 solution provides accurate, spatially independent monitoring and early detection of deviations in leak rates, enhancing the reliability of calibration processes and enabling on-site calibration of multiple devices without the need for cumbersome cables or instruments.
Implementation Method 1
designed for wireless transmission of the measured pressure values to a receiver
Implementation Method 2
The pressure sensor is preferably provided with a battery that feeds the sensor
Implementation Method 3
The pressurized gas container is leaked with a predetermined leak rate. The test gas escaping through the test leak flows out at the specified leak rate.
Data Source
Figure 1
AI summary
A test leak device for calibrating or testing leak detection apparatuses, said test leak device having a pressurized gas container that has an inlet for filing in a test gas and a leak that has a predefined leak rate. The test leak device has an integrated pressure sensor that monitors the pressure in the pressurized gas container and is designed for the wireless transmission of the measured pressure values to a receiver.