一种用于拉曼光谱仪的校准装置
By using a microprocessor-controlled hybrid calibration light source and optical interface module, the problem of insufficient calibration integration in traditional Raman spectroscopy detection devices is solved, enabling full-band parameter calibration of the Raman spectrometer and improving integration and calibration efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU EUROPOD PRECISION INSTR TECH CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional Raman spectroscopy detection devices require additional standard silicon wafers, standard glass, and other equipment to calibrate the intensity deviation of the Raman spectrum, resulting in insufficient overall integration.
A calibration device comprising a microprocessor, a hybrid calibration light source, and an optical interface module was designed. This device calibrates the relative intensity, frequency shift repeatability, and spectral resolution of a Raman spectrometer using a tungsten lamp and a neon lamp containing a mixed gas. It features high integration and covers the entire spectral band.
It enables parameter calibration of Raman spectrometers without the need for additional devices, improving integration and calibration efficiency, and covering more than 90% of Raman application wavelengths.
Smart Images
Figure CN224518548U_ABST
Abstract
Claims
1. A calibration device for a Raman spectrometer, characterized by: It includes a microprocessor (1), a hybrid calibration light source (2), and an optical interface module (3), among which, The microprocessor (1) is connected to the hybrid calibration light source (2), the hybrid calibration light source (2) is connected to the optical interface module (3), and the optical interface module (3) is connected to the Raman spectrometer (4). The microprocessor (1) is used to receive calibration instructions from the outside and control the hybrid calibration light source (2) to emit light signals according to the calibration instructions. The hybrid calibration light source (2) outputs the emitted light signals to the Raman spectrometer (4) through the optical interface module (3) to calibrate the parameters of the Raman spectrometer (4).
2. The calibration device for a Raman spectrometer of claim 1, wherein: The hybrid calibration light source (2) includes a tungsten lamp (2-1) and a neon lamp (2-2) containing a mixed gas, wherein, The microprocessor (1) is used to calibrate the relative intensity of the Raman spectrometer (4) via a tungsten lamp (2-1); The microprocessor (1) is used to calibrate the frequency shift repeatability and spectral resolution of the Raman spectrometer (4) using a neon lamp (2-2) with a mixed gas.
3. The calibration device for a Raman spectrometer of claim 2, wherein: The neon lamp (2-2) with mixed gas is filled with three inert gases: neon, argon, and xenon. It is used to calibrate the frequency shift repeatability and spectral resolution of the Raman spectrometer (4) at laser wavelengths of 532 nm, 785 nm, or 1064 nm.
4. The calibration device for a Raman spectrometer according to claim 2, characterized in that: The microprocessor (1) is connected to the tungsten lamp (2-1) through the first driving module (5), and the first driving module (5) adopts a linear regulator of model LT3083; The microprocessor (1) is connected to a neon lamp (2-2) with mixed gas via a second drive module (6), and the second drive module (6) is a high-voltage DC converter of model EMCO C60.
5. The calibration device for a Raman spectrometer of claim 2, wherein: The tungsten lamp (2-1) and the neon lamp (2-2) with mixed gas share a common light-emitting end.
6. The calibration device for a Raman spectrometer of claim 2, wherein: The optical interface module (3) includes a collimating lens (3-1) and an optical fiber interface (3-2) connected in sequence. The hybrid calibration light source (2) is connected to the Raman spectrometer (4) through the collimating lens (3-1) and the optical fiber interface (3-2). The collimating lens (3-1) is connected to the light-emitting ends of the tungsten lamp (2-1) and the neon lamp (2-2) containing a mixed gas.
7. The calibration device for a Raman spectrometer of claim 1, wherein: It also includes an industrial control computer (7), which is connected to the microprocessor (1) through a communication module (8) for issuing calibration instructions to the microprocessor (1).
8. The calibration device for a Raman spectrometer of claim 7, wherein: The communication module (8) includes a wired communication module (8-1) and a wireless communication module (8-2).
9. The calibration device for a Raman spectrometer of claim 8, wherein: The wired communication module (8-1) uses an RS485 interface, and the wireless communication module (8-2) uses Bluetooth communication.
10. The calibration device for a Raman spectrometer of claim 1, wherein: The microprocessor (1) is model CMS32F033.