Hydraulic Head Calibration Module for Power-Free Sensor Flow
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Solution Overview
Problem
Conventional measurement systems requiring a power source for both measurement and calibration pose challenges in locations where power is unavailable.
Innovation Solution
A calibration module utilizing hydraulic head to introduce and discharge liquid for sensor calibration without electric power, featuring a tank, inlet and outlet paths, and a switching mechanism like a three-way valve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If electric pump or valve is used to control flow rate, then flow rate control is achieved, but power source is required and device complexity increases
Solution Approach 1:
The patent applies hydraulic principles by using a tank positioned at a higher elevation to create hydraulic head pressure, which naturally drives liquid flow through the sensor unit without requiring electric pumps or valves. The gravitational potential energy converted to hydraulic pressure provides passive flow control, eliminating the need for powered flow rate control mechanisms.
Solution Approach 2:
The system uses the weight and position of the liquid in the elevated tank to automatically generate flow pressure. The liquid's own gravitational force serves as the driving mechanism, making the system self-powered and eliminating external power source requirements for flow control.
2Ease of operation
If electric pump or valve is used to control flow rate, then flow rate control is achieved, but device complexity increases
Solution Approach 1:
The patent replaces complex electric flow control devices with a simple hydraulic system based on gravitational head pressure. The elevated tank configuration creates natural pressure differential that drives flow, eliminating the need for electric pumps, motors, sensors, and control circuits associated with powered flow rate control mechanisms.
Solution Approach 2:
The patent extracts and removes the electric power-dependent flow control components from the system. By eliminating pumps, motors, and electronic control devices, the system achieves flow rate control through passive hydraulic means, significantly reducing device complexity.
3Reliability
If power source is required for calibration, then calibration can be performed, but calibration cannot be performed in locations without power source
Solution Approach 1:
The calibration system is made self-powered by using gravitational potential energy from the elevated tank. This eliminates dependence on external power sources, allowing calibration operations to be performed in remote field locations, mobile units, or any setting where electrical power is unavailable or unreliable.
Solution Approach 2:
The system changes the energy source parameter from electrical power to gravitational potential energy. By converting the calibration system to use mechanical energy from liquid head pressure instead of electrical energy, the system gains adaptability to operate in diverse locations without power infrastructure.
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 sensor calibration in power-constrained environments with a simple configuration, minimizing power requirements and environmental impact while ensuring accurate and efficient calibration.
Implementation Method 1
the inlet path introduces the liquid into the sensor unit by the hydraulic head between the tank and the inlet port. The hydraulic head is energy generated between two liquid levels of different heights.
Implementation Method 2
The hydraulic head is energy generated between two liquid levels of different heights
Data Source
AI summary
A calibration module including a tank to hold a liquid, an inlet path connected to an inlet port of a sensor unit including a sensor to introduce the liquid supplied from the tank into the sensor unit, and an outlet path connected to an outlet port of the sensor unit to discharge the liquid from the interior of the sensor, in which the inlet path introduces the liquid into the sensor unit by the hydraulic head between the tank and the inlet port.