CN209043796U - Fluorescence detection ultraviolet LED automatic switching control equipment - Google Patents
Fluorescence detection ultraviolet LED automatic switching control equipment Download PDFInfo
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- CN209043796U CN209043796U CN201821779404.5U CN201821779404U CN209043796U CN 209043796 U CN209043796 U CN 209043796U CN 201821779404 U CN201821779404 U CN 201821779404U CN 209043796 U CN209043796 U CN 209043796U
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- ultraviolet led
- platform
- output shaft
- fluorescence detection
- turntable
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The utility model discloses a kind of fluorescence detection ultraviolet LED automatic switching control equipment, there is platform, stepper motor is fixed on platform, the output shaft of the stepper motor connects with bracket slide, and turntable is fixed on output shaft, and multiple ultraviolet LEDs of different wave length are equipped at intervals on disk peripheral, optical filter is equipped on ultraviolet LED, it is additionally provided with locating piece on the turntable, sensing element corresponding with locating piece is equipped on platform, sliding is connected to slip ring on the output shaft.The ultraviolet LED that can automatically switch different wave length (200nm ~ 500nm) irradiates different samples respectively, carries out excitation fluorescence detection.Precise positioning can be achieved, it is automatic to calibrate light path light axis system, to guarantee the accuracy and repeatability of different wave length ultraviolet LED output wavelength, greatly the time of shortening optical path debugging, effectively increase detection efficiency.
Description
Technical field
The utility model relates to a kind of fluorescence excitation apparatus, especially a kind of fluorescence detection that detection efficiency can be improved is purple
Outer LED automatic switching control equipment.
Background technique
Currently, the detection method for substances such as mycotoxins in food mainly has fluorescence detection, enzyme-linked immunization
(ELISA), thin-layered chromatography (TLC), gas chromatography (GC) and liquid chromatography (LC) and liquid chromatograph mass spectrography
(LCMS) etc. a variety of, wherein the fluorescence detection characterized by low detection limits has unique advantage.Fluorescence detection method is by institute
The sample to be tested clear liquid of extraction is put into sample cell, with excitation light source irradiating sample pond, is excited to sample；Quilt in sample cell
The fluorescence that sample inspires, line focus are incident in PMT spectral detection system after filtering and are detected, last basis and mark
Quasi- concentration-fluorescence intensity relation curve determines the concentration of the substances such as the mycotoxin in sample.Existing excitation light source is main
Using xenon lamp, X-ray, laser and ultraviolet LED etc., the relatively other several light sources of ultraviolet LED have at low cost, the compact-sized, longevity
Life is long, adjustment technique is convenient, without concentrating the advantages such as heat dissipation.But existing ultraviolet LED mode of excitation is using certain wavelength
Ultraviolet LED carries out fluorescence excitation-detection to a kind of sample, and efficiency is lower.
Summary of the invention
The utility model is to propose that detection effect can be improved in one kind to solve above-mentioned technical problem present in the prior art
The fluorescence detection of rate ultraviolet LED automatic switching control equipment.
The technical solution of the utility model is: a kind of fluorescence detection ultraviolet LED automatic switching control equipment has platform,
Stepper motor is fixed on platform, the output shaft of the stepper motor connects with bracket slide, is fixed with and turns on output shaft
Disk is equipped at intervals with multiple ultraviolet LEDs of different wave length on disk peripheral, is equipped with optical filter on ultraviolet LED, on the turntable also
Equipped with locating piece, sensing element corresponding with locating piece is equipped on platform, sliding is connected to slip ring on the output shaft.
The utility model directly drives turntable using stepper motor, can automatically switch different wave length (200nm ~ 500nm)
Ultraviolet LED irradiates different samples respectively, carries out excitation fluorescence detection.Locating piece and sensing element realize precise positioning,
Light path light axis system can be calibrated automatically, to guarantee the accuracy and repeatability of different wave length ultraviolet LED output wavelength, greatly contracted
The time of short optical path debugging, effectively increase detection efficiency.Have many advantages, such as easy to operate, flexible, reliable.
Detailed description of the invention
Fig. 1 is the top view of the utility model embodiment.
Fig. 2 is the side view of the utility model embodiment.
Specific embodiment
The fluorescence detection of the utility model ultraviolet LED automatic switching control equipment, has platform 1, is fixed with stepping on the platform 1
The output shaft 3 of motor 2, stepper motor 2 is connected by bearing etc. with the sliding of bracket 4, and turntable 5, turntable are fixed on output shaft 3
5 circumferentially spaced about multiple ultraviolet LEDs 6 equipped with different wave length, the quantity of ultraviolet LED 6 can as needed depending on.In ultraviolet LED 6
It is equipped with optical filter 7, is additionally provided with locating piece 8 on turntable 5, is equipped with sensing element 9 corresponding with locating piece 8, sensing on the platform 1
The output signal and circuit for controlling motor (motor driven and MSP430 single-chip microcontroller etc.) of element 9.Sliding is connected to cunning on output shaft 3
Ring 10, the routes such as power supply for connecting ultraviolet LED 6.Locating piece 8 can be infrared launcher, and sensing element 9 then may be used
To be and infrared receiving device；Locating piece 8 can also be locating rod, and sensing element 9 is optic coupling element etc., in short, locating piece 8
It is arranged in pairs with sensing element 9, after sensing element 9 detects positioning signal, motor is controlled by circuit for controlling motor and is stopped
Precise positioning is realized in rotation.
Claims (1)
1. a kind of fluorescence detection ultraviolet LED automatic switching control equipment, it is characterised in that: there is platform (1), it is fixed on platform (1)
Have stepper motor (2), the output shaft (3) of the stepper motor (2) connects with bracket (4) sliding, is fixed on output shaft (3)
Turntable (5), the circumferentially spaced about multiple ultraviolet LEDs (6) equipped with different wave length of turntable (5) are equipped on ultraviolet LED (6) and filter
Piece (7) is additionally provided with locating piece (8) on the turntable (5), and sensing element corresponding with locating piece (8) is equipped on platform (1)
(9), sliding is connected to slip ring (10) on the output shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821779404.5U CN209043796U (en) | 2018-10-31 | 2018-10-31 | Fluorescence detection ultraviolet LED automatic switching control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821779404.5U CN209043796U (en) | 2018-10-31 | 2018-10-31 | Fluorescence detection ultraviolet LED automatic switching control equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209043796U true CN209043796U (en) | 2019-06-28 |
Family
ID=67040441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821779404.5U Active CN209043796U (en) | 2018-10-31 | 2018-10-31 | Fluorescence detection ultraviolet LED automatic switching control equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209043796U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211789A (en) * | 2018-10-31 | 2019-01-15 | 大连依利特分析仪器有限公司 | Fluorescence detection ultraviolet LED automatic switching control equipment |
| GB2619772A (en) * | 2022-06-17 | 2023-12-20 | Foster & Freeman Ltd | Apparatus and methods for identifying compounds of interest |
-
2018
- 2018-10-31 CN CN201821779404.5U patent/CN209043796U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211789A (en) * | 2018-10-31 | 2019-01-15 | 大连依利特分析仪器有限公司 | Fluorescence detection ultraviolet LED automatic switching control equipment |
| GB2619772A (en) * | 2022-06-17 | 2023-12-20 | Foster & Freeman Ltd | Apparatus and methods for identifying compounds of interest |
| GB2619772B (en) * | 2022-06-17 | 2024-06-19 | Foster & Freeman Ltd | Apparatus and methods for identifying compounds of interest |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191211 Address after: 116023 No.2-2, Xuezi street, high tech park, Dalian City, Liaoning Province Co-patentee after: Elite (Suzhou) Analytical Instruments Co., Ltd. Patentee after: Yilite Analysis Instrument Co., Ltd., Dalian Address before: Dalian high tech Industrial Park, 116000 Liaoning province Qixianling students Street No. 2 Patentee before: Yilite Analysis Instrument Co., Ltd., Dalian |
|
| TR01 | Transfer of patent right |