Flow Rate Device with Temperature Pressure Correction
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Solution Overview
Problem
Existing flow monitors face measurement inaccuracies due to fluctuations in medium parameters, especially under extreme environmental conditions such as temperature differences and pressure loads, leading to unreliable flow rate determinations.
Innovation Solution
A device for determining the instantaneous mass flow rate of a flowable medium, incorporating sensors to read input values like fluid medium material, temperature, and pressure, with a computing unit that applies correction factors for temperature and pressure dependencies, and enables wireless communication for transmitting and updating calibration parameters, allowing for accurate and flexible flow rate measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional flow monitors are used, then flow rate measurement is possible, but measurement inaccuracies occur due to fluctuations in medium parameters especially under extreme environmental conditions
Solution Approach 1:
The patent applies parameter changes by introducing temperature and pressure sensors to detect variations in medium parameters, and by using correction factors that adjust the flow rate calculation based on detected temperature and pressure deviations from reference values. This resolves the contradiction by dynamically adapting the measurement to environmental conditions.
Solution Approach 2:
The patent implements feedback by using detected temperature and pressure values to calculate correction factors, which are then applied to the float position measurement to compensate for environmental effects. The system continuously monitors environmental parameters and adjusts the flow rate determination accordingly, improving both accuracy and reliability.
2Measurement precision
If correction factors for temperature and pressure are applied, then measurement accuracy under varying conditions is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by using a single processing unit that performs multiple functions: it processes the float position signal, reads temperature and pressure sensor data, calculates correction factors, and outputs the compensated flow rate. This multi-functional approach improves measurement accuracy while minimizing the increase in device complexity.
Solution Approach 2:
The patent merges the correction functionality into the existing flow meter structure by integrating temperature and pressure sensors with the float mechanism and combining their signals in a single processing unit. This consolidation achieves accurate compensated measurements without requiring separate complex correction devices.
3Ease of operation
If wireless communication is implemented for transmitting calibration parameters, then ease of operation and calibration is improved, but device complexity increases
Solution Approach 1:
The patent replaces mechanical calibration procedures (physical access, manual parameter entry) with wireless communication that allows remote transmission and updating of calibration parameters. This substitution dramatically improves ease of operation while the added complexity is minimal since it only requires adding a communication interface without changing the core measurement mechanism.
Data Source
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AI summary
Device for determining the instantaneous flow rate of a flowable medium, comprising a measuring housing section for receiving measuring means, and a measuring line section through which the flowable medium can flow, whereby a float projecting into the flowable medium with a measuring section can be lifted, wherein the float is connected to a guide section projecting into the measuring housing section, wherein a signaling means, in particular a magnetic means, is arranged in a holding area, in particular an end area, of the guide section, wherein adjacent to the signaling means, in particular a magnetic means, a position sensor, in particular height-adjustable, for registering the movement of a signaling means, in particular a magnetic means, is arranged on the holding area of the guide section of the float, in particular a reed contact and/or Hall sensor, essentially stationary with respect to the outer measuring housing section.wherein the position sensor, in particular the reed contact and/or Hall sensor, is activated as a result of a magnetic medium movement caused by the float movement.