Optical Computing Device Light Fluctuation Compensation
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Solution Overview
Problem
Conventional optical computing devices face inaccuracies due to light intensity fluctuations, which conventional normalization techniques fail to adequately address, leading to significant errors in measurement, especially in low-sensitivity applications.
Innovation Solution
The implementation of a normalization optical channel with a light intensity equal to or substantially equal to the characteristic optical channel, achieved through the use of a neutral density element or aperture, or a combination of optical elements to compensate for light intensity fluctuations, ensuring accurate measurements by maintaining a stable A/B ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional normalization techniques using a B Channel are employed, then light intensity fluctuations are partially compensated, but measurement accuracy deteriorates due to incorrect A/B ratio assumptions
Solution Approach 1:
The patent changes the parameter of the normalization channel by using a virtual optical element with variable transmission characteristics instead of a fixed B Channel. The virtual optical element dynamically adjusts its transmission parameter to match the characteristics of the characteristic optical channel, ensuring that the normalization process accounts for actual light source fluctuations rather than assuming a fixed ratio relationship.
2Reliability
If a B Channel is used for normalization, then some light fluctuation effects are addressed, but significant errors remain in low-sensitivity applications
Solution Approach 1:
The patent creates a virtual copy of the characteristic optical channel's transmission characteristics through the virtual optical element. Instead of using a separate B Channel with fixed properties, the system generates a virtual normalization channel that precisely replicates the transmission profile of the characteristic channel, allowing for accurate normalization even in low-sensitivity applications where conventional methods fail.
3Ease of operation
If conventional optical computing devices are used, then basic optical measurements are performed, but accuracy is significantly reduced by light intensity fluctuations
Solution Approach 1:
The patent introduces a virtual optical element as an intermediary between the light source and the detection system. This virtual element acts as a mediator that compensates for light intensity fluctuations by dynamically adjusting its transmission characteristics to match those of the characteristic optical channel, thereby maintaining measurement accuracy without complicating the basic operation of the device.
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 approach significantly increases the accuracy of optical computing devices by minimizing the effects of light intensity fluctuations, resulting in reliable and precise measurements, with potential improvements of up to a factor of 10 in measurement accuracy.
Implementation Method 1
a second optical element that optically interacts with the sample-interacted light or the electromagnetic radiation to thereby generate a normalization optical channel whose light has an intensity substantially equal to an intensity of the light of the characteristic optical channel
Data Source
AI summary
An optical computing device adapted to compensate for the effects of light intensity fluctuation through the use of optical elements that generate a normalization optical channel (or B Channel) having a light intensity that is substantially equal to the light intensity of the characteristic optical channel (or A Channel). As a result, highly accurate normalizations are obtained which give rise to the most accurate results from the optical computing device.