Scattering Receiver Array for Optical Measurement
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Solution Overview
Problem
Existing optical devices for measuring refraction, scattering, and absorption face inaccuracies due to complex heterogeneous structures, where components are influenced differently by temperature and external factors, leading to calibration challenges and high manufacturing efforts, and the measurement of scattering is disrupted by interfering radiation and varying particle sizes.
Innovation Solution
A device with a simplified structure featuring at least two scattering receivers on a common planar or spherically curved surface, a refraction receiver, and a reference receiver, optimized to receive saturated and linear scattered radiation, and transmission radiation, allowing for better correction of refraction measurements and precise angle-dependent scattering analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a complex heterogeneous structure with multiple receivers and radiation sources is used to measure refraction, scattering, and absorption, then the ability to determine multiple optical quantities is improved, but the components are influenced differently by temperature and external factors leading to calibration challenges and high manufacturing efforts
Solution Approach 1:
The patent combines multiple receivers (refraction receiver, scattering receivers, transmission receiver) and radiation sources into a common plane, creating a homogeneous structure where all components are subject to the same temperature and external conditions. This merging approach maintains the ability to measure multiple optical quantities while eliminating the calibration challenges associated with heterogeneous structures.
Solution Approach 2:
The patent creates a homogeneous arrangement where all receivers and radiation sources are positioned in a common plane, ensuring they experience identical environmental conditions. This homogeneity simplifies calibration by ensuring uniform influence from temperature and external factors across all components.
2Measurement precision
If multiple receivers are arranged at different locations to measure different optical quantities, then measurement capability is improved, but parasitic radiation and interfering radiation from other interfaces disrupt the measurements
Solution Approach 1:
The patent extracts and separates the detection of different radiation types into specialized receivers positioned at specific locations in the common plane. The refraction receiver detects only refraction radiation, scattering receivers detect only scattered radiation, and the transmission receiver detects only transmitted radiation, eliminating cross-interference between measurement channels.
Solution Approach 2:
The patent introduces a protective element positioned between the radiation sources and the sample, and between the sample and the receivers. This intermediary component filters out parasitic radiation and interfering radiation from interfaces, allowing only the desired radiation types to reach the respective receivers.
3Ease of manufacture
If a simplified structure with receivers in a common plane is used, then manufacturing effort and calibration are reduced, but the ability to perform angle-dependent scattering analysis may be limited
Solution Approach 1:
The patent positions scattering receivers at different angular positions within the common plane, adding an angular dimension to the measurement capability. This allows angle-dependent scattering analysis to be performed while maintaining the simplified homogeneous structure that facilitates easy manufacturing and calibration.
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 configuration reduces parasitic radiation, enhances measurement accuracy, and increases the versatility of the device by allowing for clear interpretation of scattering and transmission data without interference, leading to improved calibration functions and more precise concentration determinations.
Implementation Method 1
radiation falls divergently onto an imaging lens and is coupled into the sample in a parallelized manner
Implementation Method 2
The radiation transmitted through the sample is imaged onto a receiver by the lens
Implementation Method 3
this coupling radiation reaches a mirror downstream of the sample and is reflected back into the sensor
Implementation Method 4
at least a first and a second scattering receiver for receiving scattered radiation from the sample
Implementation Method 5
at least one refraction receiver arranged in the surface of the scatter receiver for receiving radiation specularly reflected at a sample-side boundary surface of the protective element
Implementation Method 6
The absorption provides information on absorbing substances
Data Source
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AI summary
The invention relates to a device for measuring the scattering of a sample (2). Said device comprises at least one first and one second scattering receiver (16, 17) for capturing scattered rays from the sample (2); and at least one imaging element (6) via which rays can reach the sample (2) and from the sample (2) to the scattering receiver (16, 17). According to the invention, the first and the second scattering receivers (16, 17) are arranged in a common flat or approximately spherically curved surface (3), which is oriented perpendicular to an optical axis of the imagining element (6). The first scattering receiver (16) is designed and arranged to capture saturated scattered rays from the sample (2) and the second scattering receiver (17) is designed and arranged to capture linearly scattered rays from the sample (2).