Virtual Instrument for Spectroscopic Data Processing with Wavelet Filtering
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Solution Overview
Problem
Existing spectroscopic instruments face challenges in interfacing a detector with a laser for data acquisition and post-acquisition processing, particularly with pulsed laser systems, due to the lack of customizable and adaptable software solutions, limiting their flexibility and effectiveness in various experimental settings.
Innovation Solution
A Virtual Instrument (VI)-based system using Lab VIEW™ graphical programming language is developed to interface a detector with a laser, enabling efficient data acquisition and processing, including wavelet-based filtering to mitigate ringing effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional spectroscopic instruments are used for data acquisition and processing, then the system structure is simple, but the flexibility and adaptability are limited
Solution Approach 1:
The patent implements a universal Virtual Instrument system using LabVIEW graphical programming that can interface with multiple types of lasers (pulsed and continuous-wave) and detectors. The software framework provides customizable and adaptable processing capabilities that work across different experimental settings, making the system multi-functional and highly versatile while maintaining a relatively simple hardware architecture.
Solution Approach 2:
The patent replaces traditional mechanical or fixed software interfaces with a software-based Virtual Instrument system. By using LabVIEW graphical programming, the system achieves flexibility and adaptability through software configuration rather than hardware modification, allowing easy customization for different experimental setups without increasing physical system complexity.
2Measurement precision
If post-acquisition processing is applied to improve measurement accuracy, then the measurement precision improves, but the processing time increases
Solution Approach 1:
The patent implements signal processing algorithms including wavelet-based filtering and ringing effect mitigation that are integrated into the data acquisition workflow. By preparing processing routines in advance and implementing them efficiently within the Virtual Instrument framework, the system achieves high measurement accuracy while minimizing additional processing time through optimized algorithm execution.
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
The system provides a flexible and scalable solution for MIR laser spectroscopy, enhancing signal processing and achieving high accuracy and precision in spectroscopic measurements, with improved noise reduction and adaptability across different experimental setups.
Implementation Method 1
receive reference data points representing samples of a first signal generated by a detector responsive to a first light signal emitted by a laser system
Implementation Method 2
The first light signal interacts with a reference medium before reaching the detector and the second light signal interacting with a sample medium before reaching the detector
Data Source
AI summary
Systems and methods for interfacing a laser system with a detector can include a computer system receiving reference data points representing samples of a first signal generated by the detector responsive to a first light signal emitted by the laser system, and receiving sample data points representing samples of a second signal generated by the detector responsive to a second light signal emitted by the laser system. The first light signal interact with a reference medium before reaching the detector and the second light signal interacts with a sample medium before reaching the detector. The computer system can generate a ratio signal using the reference data points and the sample data points, apply wavelet-based filtering to the ratio signal, and cause the filtered ratio signal to be displayed on a display device.