NMR Spectrometer Light Source Layout for Free Sample Tube Movement
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Solution Overview
Problem
Conventional NMR spectrometers require optical fibers to guide light from external sources into the sample tube, hindering sample movement during transportation and irradiation.
Innovation Solution
The light source is positioned inside the NMR spectrometer body, allowing direct irradiation of the sample tube without the need for optical fibers, using a moving mechanism and light-emitting elements that do not obstruct the sample's movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If an optical fiber is used to guide light from outside the housing into the sample tube, then light can be delivered to the sample, but the optical fiber hinders the movement of the sample tube between positions of different magnetic field magnitudes
Solution Approach 1:
The patent extracts the light source from the external position and relocates it inside the housing, specifically positioning it on the moving mechanism with the sample tube. This removes the need for optical fibers to extend through the housing, thereby eliminating the obstruction to sample tube movement while maintaining light delivery capability.
Solution Approach 2:
The patent introduces a moving mechanism as an intermediary carrier that holds the light source and moves it together with the sample tube. This intermediary system allows the light source to be positioned precisely at the sample location without requiring fixed optical pathways through the housing, thus enabling free movement of the sample tube.
2Ease of manufacture
If the light source is disposed outside the housing of the Dewar bottle, then geometric and material limitations are avoided, but the light source cannot directly irradiate the sample tube inside the body
Solution Approach 1:
The patent merges the light source with the moving mechanism that carries the sample tube inside the housing. By combining these two components, the system achieves direct light irradiation of the sample tube while maintaining the ease of installation flexibility, as the light source is integrated into the moving assembly rather than being fixed externally.
3Illumination intensity
If an optical fiber is inserted into the sample tube to guide light, then light can be delivered to the sample, but the optical fiber obstructs the sample tube's movement between magnetic field positions
Solution Approach 1:
The patent removes the optical fiber from the system entirely and replaces it with a light source that is directly integrated into the moving mechanism. This extraction of the optical fiber eliminates the complexity of maintaining optical pathways through the housing while preserving effective light delivery to the sample.
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 unhindered sample movement and enhanced irradiation efficiency through direct light irradiation, improving chemical reactions and enzyme-catalyzed processes within the NMR spectrometer.
Implementation Method 1
The light source includes a base and at least one light-emitting element, the base is disposed on the moving mechanism, located at an outer side the moving path of the sample tube
Implementation Method 2
The light source further includes a reflective element, the reflective element is disposed on the base and has a reflective hole
Implementation Method 3
The superconducting magnet is disposed inside the body and located at the outer side of the probe
Implementation Method 4
The moving mechanism is disposed on the body and includes a sample tube. The driving device is disposed on the body and is used to drive the moving mechanism to move the sample tube
Data Source
AI summary
A nuclear magnetic resonance spectrometer is provided, including a body, a moving mechanism, a driving device, a probe, a superconducting magnet, and a light source. The moving mechanism is disposed on the body and includes a sample tube. The driving device is disposed on the body and is used to drive the moving mechanism to move the sample tube. The probe is disposed inside the body and under the moving mechanism, and has a channel for the sample tube to enter the probe. The superconducting magnet is disposed inside the body and located at the outer side of the probe. The light source is disposed inside the body, and is located outside the moving path of the sample tube or above the sample tube.