Browser-Based Spectrometer Data Acquisition Tool

A real-time data processing tool for USB CMOS detector-based spectrometers that runs entirely in the browser. This tool provides live spectrum visualization, data analysis, and export capabilities.

Features

• Real-time spectrum visualization from USB camera input
• Two-point wavelength calibration system
• Interactive spectrum display with zoom and pan
• Data export in CSV format
• Frame capture and download capabilities
• QE (Quantum Efficiency) correction support
• Support for both live video and static image analysis

System Requirements

• Modern web browser with WebRTC support
• USB CMOS camera/spectrometer
• Recommended resolution: 1920x1080 pixels

Quick Start

1. Connect your USB spectrometer/camera
2. Open index.html in a modern web browser
3. Select your camera from the dropdown
4. Perform wavelength calibration using known spectral lines
5. Start analyzing your spectrum

Core Components

• Camera Interface: Handles USB camera input and frame capture
• Image Processor: Converts raw frame data to spectral information
• Spectragraph: Manages spectrum visualization and interaction
• Recording Manager: Handles data recording and export functions

Usage

Basic Operation

1. Select camera source
2. Set region of interest (ROI)
3. Perform wavelength calibration
4. View real-time spectrum

Calibration

1. Input known wavelength points (e.g., 405.4nm and 611.6nm)
2. Mark corresponding pixel positions
3. Apply calibration

Data Export

• Export spectrum data as CSV
• Download individual frames as PNG
• Record video with spectral data

Development

The project is structured in modules:

• camera.js: Camera input handling
• imageProcessor.js: Frame processing and analysis
• spectragraph.js: Spectrum visualization
• main.js: Application coordination
• recordingManager.js: Data recording and export

License

MIT