Emission-Line Source Pre-Illumination for Stable Spectroscopic Calibration
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Solution Overview
Problem
The issue of unstable light emission from the emission-line light source during wavelength calibration in spectroscopic devices, leading to decreased calibration accuracy, is addressed by implementing a second light source to irradiate the emission-line light source with direct light before the start of wavelength calibration, thereby preventing the dark effect and stabilizing light emission.
Innovation Solution
A spectroscopic device comprising a spectrometer, an emission-line light source, and a second light source that irradiates the emission-line light source with direct light before the start of wavelength calibration to prevent the dark effect, ensuring stable light emission and improved calibration accuracy without the need for averaging processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the emission-line light source is left in a dark place before wavelength calibration, then the device structure is simple, but the light emission becomes unstable and calibration accuracy decreases
Solution Approach 1:
The second light source is activated before the emission-line light source to pre-illuminate it and prevent the dark effect. This preliminary action ensures that when the emission-line light source starts, it immediately emits stable light without the delay and instability caused by being left in darkness, thereby improving wavelength calibration accuracy without requiring complex structural changes
2Measurement precision
If an averaging process by multiple measurements is performed to improve calibration accuracy, then the wavelength calibration accuracy improves, but the time required for wavelength calibration increases
Solution Approach 1:
By pre-illuminating the emission-line light source with the second light source before calibration, the system eliminates the need for multiple averaging measurements. The light emission becomes stable immediately upon activation, allowing single-measurement calibration with the same accuracy as multi-measurement averaging, thus reducing calibration time significantly
3Productivity
If the emission-line light source is activated after being in darkness, then the device operates efficiently, but the light emission is delayed and unstable at the start
Solution Approach 1:
The second light source serves as an intermediary that bridges the gap between the dark state and the operational state of the emission-line light source. By providing preliminary illumination, it prepares the emission-line light source for immediate stable operation when activated, eliminating the delay and instability without compromising operational efficiency
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 proposed solution enables highly accurate wavelength calibration in a shorter time by stabilizing the emission-line light source's emission, eliminating the need for multiple measurements and reducing the time required for calibration.
Implementation Method 1
an emission-line light source that emits an emission line for wavelength calibration
Data Source
Figure 1
Figure 2
Figure 3A~4B
AI summary
A spectroscopic device (1) (3) includes a spectrometer (13) (34), an emission-line light source (14) (32) that emits an emission line for wavelength calibration, and a second light source (15) (33). The second light source (15) (33) is arranged to irradiate the emission-line light source (14) (32) with direct light from the second light source (15) (33).