Spectrometer Variable Reference Voltage ADC Signal Approximation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional spectrometers face challenges in interpreting spectrum measurement results when light characteristics of testing objects vary or when the light source is aged, requiring hardware or software modifications to avoid unclear spectrum presentations.
Innovation Solution
A spectrometer comprising a light sensor, variable gain amplifier, variable reference voltage generation circuit, and analog-to-digital converter, which amplifies and converts sensing signals into digital signals according to a target value, allowing for easy interpretation of spectrum measurements without hardware or software modifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If measurement parameters are adjusted when light characteristics vary or light source is aged, then measurement accuracy is improved, but hardware or software modification is required which increases device complexity
Solution Approach 1:
The patent implements dynamic adjustment of measurement parameters through a control circuit that automatically modifies ADC reference voltage and gain amplifier settings based on real-time light intensity detection. This dynamic adaptation eliminates the need for manual hardware or software modifications while maintaining measurement accuracy across varying light conditions and light source aging.
Solution Approach 2:
The system changes measurement parameters (ADC reference voltage and amplifier gain) based on detected light characteristics. By varying these parameters dynamically, the system adapts to different light intensities and object characteristics without requiring structural modifications to the hardware or software architecture.
2Measurement precision
If measurement parameters are adjusted to accommodate varying light characteristics, then spectrum clarity is improved, but ease of operation deteriorates due to required modifications
Solution Approach 1:
The control circuit automatically detects light characteristics and adjusts measurement parameters without user intervention. The system serves itself by monitoring light intensity and autonomously modifying ADC and amplifier settings, eliminating the need for users to perform hardware or software modifications while maintaining clear spectrum presentations.
Solution Approach 2:
The system implements feedback by detecting light characteristics and using this information to automatically adjust measurement parameters. This closed-loop control ensures spectrum clarity is maintained while eliminating manual adjustment requirements, thereby improving ease of operation.
3Device complexity
If fixed measurement parameters are used, then device complexity is reduced, but adaptability deteriorates when facing varying light intensities or object characteristics
Solution Approach 1:
The system transitions from fixed to dynamic parameters by implementing real-time adjustment of ADC reference voltage and amplifier gain based on detected light characteristics. This dynamic approach maintains measurement system simplicity while significantly improving adaptability to varying light intensities and object characteristics.
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 convenient and clear spectrum measurement results across varying light intensities and object characteristics without the need for hardware or software adjustments, enhancing user convenience.
Implementation Method 1
a first light sensor senses light to be measured from a testing object to generate a sensing signal
Data Source
AI summary
A spectrometer and a spectrum measurement method thereof are provided. An analog-to-digital converter converts an amplified signal into a digital signal according to a reference voltage provided by a variable reference voltage generation circuit and amplifies the digital signal according to a target signal value, thereby approximating a signal value of the amplified digital signal to the target signal value. A control circuit outputs a spectral signal according to the amplified digital signal. A user can obtain spectrum measurement results that can be easily interpreted by the spectrometer and the spectrum measurement method thereof, without changing hardware or software, so as to improve convenience of use of the spectrometer.