Integrated Sensing Device for Simultaneous Pressure and Differential Pressure Detection
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Solution Overview
Problem
Existing sensing devices require separate differential pressure sensors and pressure sensors to detect pressure and differential pressure, leading to high detection costs and inconvenient use.
Innovation Solution
A sensing device with a body containing a first and second chamber filled with liquid, where a pressure difference detection chip in the first chamber detects liquid pressure difference between the chambers, and a pressure detection chip in the first chamber detects liquid pressure in the first chamber.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate differential pressure sensor and pressure sensor are used to detect pressure and differential pressure, then detection accuracy is ensured, but device complexity and cost increase
Solution Approach 1:
The patent combines a differential pressure detection chip and a pressure detection chip into a single integrated sensing device. The differential pressure detection chip detects the pressure difference between the first chamber and second chamber, while the pressure detection chip detects the liquid pressure in the first chamber. This merging of multiple sensing functions into one device reduces complexity and cost while maintaining detection accuracy for both pressure and differential pressure measurements.
Solution Approach 2:
The sensing device is designed with multi-functionality to perform both differential pressure detection and absolute pressure detection simultaneously. By incorporating both types of detection chips in the same device structure with liquid-filled chambers, the system achieves universal detection capability for different pressure parameters, eliminating the need for separate specialized sensors.
2Adaptability or versatility
If separate differential pressure sensor and pressure sensor are used, then detection functionality is complete, but detection cost increases
Solution Approach 1:
The patent merges the functionality of separate differential pressure and pressure sensors into a single integrated device. The sensing device includes a body with first and second chambers filled with liquid, containing both a differential pressure detection chip and a pressure detection chip. This integration reduces the total number of components needed, thereby lowering manufacturing costs while maintaining complete detection functionality for both pressure and differential pressure.
3Measurement precision
If multiple separate sensors are used for comprehensive detection, then measurement capability is enhanced, but ease of operation decreases
Solution Approach 1:
The patent combines multiple sensing functions into a single device that operates as one integrated unit. The sensing device with liquid-filled chambers and multiple detection chips provides comprehensive measurement capability for both pressure and differential pressure, while simplifying operation by eliminating the need to manage and coordinate multiple separate sensors. Users interact with a single device rather than multiple independent components.
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 simultaneous detection of pressure and differential pressure, reducing costs and improving convenience, while also allowing for optional temperature detection.
Implementation Method 1
a pressure difference detection chip installed in the first chamber, The pressure difference detection chip seals an opening of the liquid path disposed on a bottom surface of the first chamber. The pressure difference detection chip detects a liquid pressure difference between the first chamber and the second chamber.
Implementation Method 2
a pressure detection chip installed in the first chamber. The pressure detection chip detects a liquid pressure in the first chamber.
Data Source
AI summary
A sensing device includes a body having a first chamber, a second chamber, and a liquid path which are filled with a liquid, the liquid path communicates with the second chamber, a pressure difference detection chip installed in the first chamber, and a pressure detection chip installed in the first chamber. The pressure difference detection chip seals an opening of the liquid path disposed on a bottom surface of the first chamber. The pressure difference detection chip detects a liquid pressure difference between the first chamber and the second chamber. The pressure detection chip detects a liquid pressure in the first chamber.