Active Beam Steering Spectrometer Calibration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional spectrometers require factory calibration and maintenance due to changes in beam path caused by environmental conditions and reflector fouling, leading to costly downtime and incompatibility with petrochemical production processes.
Innovation Solution
An apparatus with a light source, detector, and actuation element controlled by a controller, allowing for active beam steering to maintain optimal calibration and performance, reducing the need for factory realignment and extending maintenance intervals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If factory calibration is performed to ensure measurement precision, then measurement precision is improved, but loss of time increases due to required downtime for calibration and maintenance
Solution Approach 1:
The spectrometer performs self-calibration by detecting the actual beam path using a position-sensitive detector and automatically adjusting optical elements to compensate for deviations, eliminating the need for external factory calibration and continuous downtime for maintenance
Solution Approach 2:
A position-sensitive detector continuously monitors the beam path position and provides feedback to a controller, which automatically adjusts mirrors or other optical elements to maintain optimal beam alignment, ensuring measurement precision without requiring periodic factory calibration
2Measurement precision
If reflector surfaces are replaced to maintain measurement precision, then measurement precision is improved, but loss of time increases due to maintenance interruptions
Solution Approach 1:
The system automatically detects beam path deviations caused by reflector degradation and compensates by adjusting other optical elements, eliminating the need for manual reflector replacement and associated maintenance downtime
Solution Approach 2:
The spectrometer employs dynamically adjustable optical elements that can be repositioned in real-time to compensate for reflector surface degradation, maintaining beam path accuracy without requiring physical replacement of the reflectors
3Device complexity
If beam path changes are allowed to occur naturally, then device complexity is reduced, but measurement precision deteriorates due to calibration invalidation
Solution Approach 1:
A position-sensitive detector continuously monitors beam path position and provides feedback to a controller that automatically adjusts optical elements, maintaining measurement precision without requiring complex pre-alignment procedures or frequent manual intervention
4Measurement precision
If factory calibration is required for every reflector replacement, then measurement precision is maintained, but productivity decreases due to frequent service calls
Solution Approach 1:
The spectrometer automatically detects and compensates for beam path changes caused by reflector replacement or degradation, eliminating the need for factory calibration service calls and maintaining continuous productivity without interrupting petrochemical production processes
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 field repair of spectrometers, maintains optical throughput, and counters environmental influences, reducing calibration offsets and extending maintenance intervals.
Implementation Method 1
the radiation emitted from a light source is absorbed with a particular energy determined by optical transitions occurring within the atoms, ions or molecules of an analyte
Implementation Method 2
Concentration levels of the absorbing medium and the like can be determined based on the signal intensity detected by the at least one detector
Implementation Method 3
An apparatus with a light source, detector, and actuation element controlled by a controller, allowing for active beam steering to maintain optimal calibration and performance
Implementation Method 4
at least one detector positioned to detect at least a portion of the beam emitted by the light source
Data Source
AI summary
A spectrometer includes a light source that emits a beam into a sample volume comprising an absorbing medium. Thereafter, at least one detector detects at least a portion of the beam emitted by the light source. It is later determined, based on the detected at least a portion of the beam and by a controller, that a position and/or an angle of the beam should be changed. The beam emitted by the light source is then actively steered by an actuation element under control of the controller. In addition, a concentration of the absorbing media can be quantified or otherwise calculated (using the controller or optionally a different processor that can be local or remote). The actuation element(s) can be coupled to one or more of the light source, a detector or detectors, and a reflector or reflectors intermediate the light source and the detector(s).