Fluid Evaluation Apparatus Mapping Light and Frequency Data
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fluid evaluation technologies face challenges in obtaining accurate results due to relatively small amounts of light received, which affects the measurement of fluid flow volume and concentration.
Innovation Solution
A fluid evaluation apparatus and method that includes an irradiator, a light receiver, and an estimator to map light amount and frequency information from the light receiving signal onto flow volume and concentration parameters, using light amount information to indicate scattered light and frequency information to indicate Doppler shift caused by fluid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If light receiving signal is used to measure fluid flow volume and concentration, then fluid evaluation is achieved, but measurement accuracy deteriorates when light amount is relatively small
Solution Approach 1:
The patent transforms the measurement from a single-dimensional light amount measurement to a two-dimensional measurement by introducing frequency information as a new dimension. The estimator maps input points on a first plane (light amount, frequency) to a second plane (flow volume, concentration), enabling accurate fluid evaluation even when light amount is small by utilizing the additional frequency dimension.
Solution Approach 2:
The patent changes the measurement parameters from solely light amount to a combination of light amount and frequency. By detecting the Doppler shift frequency of the scattered light and using this frequency information alongside light amount information, the system achieves accurate measurement of flow volume and concentration without requiring large light amounts.
2Measurement precision
If Doppler shift frequency is used to indicate fluid flow, then flow volume measurement is improved, but measurement reliability worsens when light amount is small
Solution Approach 1:
The patent uses frequency information as an intermediary parameter that connects the light receiving signal to the flow volume measurement. The estimator acts as a mediator that processes both light amount information and frequency information together, mapping them to flow volume and concentration. This intermediary approach maintains reliability even when light amount is small by combining multiple information sources.
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 accurate estimation of fluid flow volume and concentration by transforming light and frequency data into relevant parameters, improving evaluation accuracy and reliability.
Implementation Method 1
a light receiver configured to receive scattered light from the fluid
Implementation Method 2
frequency information, which indicates a frequency associated with a beat signal caused by a Doppler shift of the light included in the light receiving signal
Data Source
AI summary
This fluid evaluation device is provided with an irradiation unit for irradiating a fluid with light, a light reception unit for receiving scattered light from the fluid and outputting a light reception signal, and an estimation unit for estimating at least one from among flow rate and density by mapping input points, which are on a first plane defined by flow rate and frequency and are expressed by light amount information indicating the amount of scattered light included in the light reception signal and frequency information indicating a frequency for a beat signal resulting from the Doppler shifting of the light included in the light reception signal, onto a second plane defined by fluid flow rate and fluid density.