Multi-modal optical detection device

Abstract

The utility model discloses a multimode optical detection device, including optical detection module, data processing transmission module, display module and power module, optical detection module includes sample cell, light source, light source groove, ultraviolet -absorbance sensor and fluorescence sensor, the light source pluggable installation in the light source groove, install ultraviolet -absorbance sensor at the third side surface outside of sample cell, install fluorescence sensor at the second side surface or fourth side surface outside of sample cell, data processing transmission module includes singlechip, and singlechip is connected with display module and ultraviolet -absorbance sensor, fluorescence sensor in optical detection module respectively. The utility model discloses through the integrated light path and circuit design, has realized ultraviolet absorption, fluorescence and chemiluminescence three detection mode's switching, makes the equipment have low energy consumption, multi -mode integrated detection characteristic, can be widely applied to the scene of on -the -spot rapid detection.

Description

Technical Field

[0001] This utility model relates to the field of optical analysis and detection equipment technology, and in particular to a multi-mode optical detection device that integrates ultraviolet-visible light absorption detection, fluorescence detection and chemiluminescence detection functions. Background Technology

[0002] Ultraviolet-visible absorption detection, fluorescence detection, and chemiluminescence detection are analytical techniques widely used in fields such as chemistry, biology, medicine, and environmental monitoring.

[0003] Currently, most testing instruments on the market only have one testing function. If multiple modes of testing are required, multiple devices need to be purchased, which is costly, space-consuming, and inconvenient for rapid on-site testing. In addition, traditional testing equipment is usually bulky, complex in structure, and energy-intensive, making it difficult to meet the needs of field sites, emergency monitoring, or small and medium-sized laboratories for equipment portability, low cost, and multifunctional integration. Utility Model Content

[0004] The purpose of this invention is to overcome the defects in the prior art and provide a multi-mode optical inspection device, which at least solves the problem of the single function of existing inspection equipment.

[0005] To solve the above technical problems, the technical solution adopted by this utility model is as follows: A multi-mode optical inspection device includes: an optical inspection module, a data processing and transmission module, a display module, and a power supply module; The optical detection module includes a sample cell, a light source, a light source slot, an ultraviolet-absorbance sensor, and a fluorescence sensor; The sample cell includes a first side, a second side, a third side, and a fourth side that are adjacent to each other and perpendicular to each other; the light source slot is set directly opposite the first side of the sample cell, and the light source is pluggably installed in the light source slot; an ultraviolet absorbance sensor is installed on the outside of the third side of the sample cell, and a fluorescence sensor is installed on the outside of the second or fourth side of the sample cell. The data processing and transmission module includes a microcontroller, which is connected to the ultraviolet-absorbance sensor and the fluorescence sensor in the display module and the optical detection module, respectively. The power module is connected to the light source slot, ultraviolet absorbance sensor, and fluorescence sensor in the display module, data processing and transmission module, and optical detection module, respectively.

[0006] Furthermore, the light source slot includes two or more rows of slots for adjusting the light distance.

[0007] Furthermore, the light source is a laser or a photodiode.

[0008] Furthermore, the sample cell is a cuvette.

[0009] Furthermore, the microcontroller of the data processing and transmission module is an STM32F103C8T6.

[0010] Furthermore, the data processing and transmission module integrates a data communication interface, which is a USB port.

[0011] Furthermore, the power module is a rechargeable lithium battery or an external mobile power source.

[0012] Furthermore, the device includes a housing and a base plate, with the bottom of the housing detachably connected to the edge of the base plate. An optical detection module, a data processing and transmission module, and a power supply module are disposed on the surface of the base plate, and a display module is disposed on the side of the housing.

[0013] Compared with the prior art, the technical effects of this utility model include: (1) The three independent optical detection systems of ultraviolet, fluorescence and chemiluminescence are integrated into a compact housing, realizing multiple functions in one machine and significantly reducing the user's equipment purchase cost and space occupation.

[0014] (2) It adopts a low-power microcontroller and integrated optical components, making it lightweight and small in size. It is powered by a lithium battery, making it easy to carry to the field for rapid testing.

[0015] (3) With a microcontroller as the core control unit, users can easily switch detection modes by using an external mode selection switch. Basic operations are all completed in the device, making it easy to operate.

[0016] (4) By using LED displays, photodiodes, ordinary microcontrollers and conventional optical components, the use of expensive large light sources and complex beam splitting systems is avoided, resulting in low manufacturing costs.

[0017] (5) Through the data communication interface, data can be quickly exchanged with external devices, which greatly speeds up the detection rate.

[0018] This invention is particularly suitable for situations where external conditions are limited, as it eliminates the need for data exchange with external devices and allows for direct and rapid data reading. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention.

[0020] Figure 1 This is an exploded structural diagram of the multi-mode optical detection device provided by this utility model; Figure 2This is a schematic diagram of the detection principle of the multi-mode optical detection device provided by this utility model.

[0021] In the figure, 1-sample cell, 2-light source, 3-light source slot, 4-ultraviolet absorbance sensor, 5-fluorescence sensor, 6-microcontroller, 7-LED display screen, 8-power module, 9-housing, 10-base plate, 11-housing cover, 12-USB port, 13-computer terminal.

[0022] 1a - First side view, 1b - Second side view, 1c - Third side view, 1d - Fourth side view. Detailed Implementation

[0023] To enable those skilled in the art to better understand this utility model, the present utility model will be further described clearly and completely below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0024] The basic concept of this utility model is to solve the problems of limited functionality and high cost of existing detection equipment. By designing the optical path and centrally controlling the microcontroller, three independent detection systems, namely ultraviolet absorption, fluorescence and chemiluminescence, are integrated into one device to achieve multiple functions in one machine.

[0025] Based on the above concepts, a typical embodiment of this utility model provides a multi-mode optical detection device, such as... Figure 1 and Figure 2 As shown, it includes an optical detection module, a data processing and transmission module, a display module, and a power supply module.

[0026] The optical detection module is a component used to detect ultraviolet, fluorescence and chemiluminescence of samples, including sample cell 1, light source 2, light source slot 3, ultraviolet absorbance sensor 4 and fluorescence sensor 5.

[0027] The sample cell 1 is used to hold the sample to be tested. Preferably, the sample cell is a removable cuvette, which is easy to clean and replace.

[0028] like Figure 1 As shown, the sample cell 1 includes a first side 1a, a second side 1b, a third side 1c, and a fourth side 1d that are sequentially adjacent and perpendicular. The first side 1a and the third side 1c are opposite sides, and the second side 1b and the fourth side 1d are opposite sides.

[0029] The light source slot 3 is used to fix the light source and supply power to it. The light source slot 3 is positioned directly opposite the first side 1a of the sample cell 1, and the light source 2 is pluggably installed inside the light source slot 3. The light source slot 3 is installed at a certain distance from the sample cell 1, directly opposite and perpendicular to the two sensors, respectively.

[0030] In a preferred embodiment, the light source slot 3 includes two or more rows of slots, which can be used to adjust the light distance between the light source and the sample cell 1.

[0031] The light source 2 is a laser or a photodiode, used to provide light sources for fluorescence and ultraviolet-visible absorption, respectively. Users can select and insert a laser (for fluorescence detection) or a photodiode (for ultraviolet-visible absorption detection) of a specific wavelength into the light source slot 3 according to their detection needs.

[0032] The lasers have wavelengths of 365nm, 405nm, 450nm, 488nm, 505nm, 520nm, 635nm, and 660nm. The through-hole photodiodes have a wavelength of 254nm and a 5nm interval wavelength sequence including 365nm and 660nm.

[0033] An ultraviolet absorbance sensor 4 is installed outside the third side 1c of the sample cell 1, and a fluorescence sensor 5 is installed outside the second side 1b or the fourth side 1d of the sample cell 1.

[0034] Both the UV-absorbance sensor 4 and the fluorescence sensor 5 preferably employ the VEML7700 high-precision optical sensor for detecting UV, fluorescence, and chemiluminescence in the sample. Both sensors can be used to detect chemiluminescence. Both the UV-absorbance sensor 4 and the fluorescence sensor 5 are equipped with filters.

[0035] The data processing and transmission module includes a microcontroller 6, preferably an STM32F103C8T6 microcontroller. The microcontroller 6 is connected via wires to the ultraviolet-absorbance sensor 4 and the fluorescence sensor 5 in the display module and optical detection module, respectively. It is responsible for controlling the mode switching of the multiple optical detection modules, receiving and processing signal data, driving human-computer interaction and data transmission, and supporting a low-power sleep mode.

[0036] The data processing and transmission module integrates a data communication interface, which is a USB port 12, and can be used to quickly exchange data with a host computer.

[0037] The display module includes an LED display screen 7, which is connected to the microcontroller 6 and is used to display the detection mode, sensor model, parameters and results in real time.

[0038] The power module 8 supplies power to the entire device and can be a rechargeable lithium battery or an external power source. The power module 8 is connected to the display module, the microcontroller 6, and the light source slot 3, ultraviolet absorbance sensor 4, and fluorescence sensor 5 in the optical detection module.

[0039] Based on the above implementation methods, such as Figure 1 , 2As shown, the multi-mode optical detection device provided by this utility model includes a housing 9 and a base plate 10. The bottom of the housing 9 is detachably connected to the edge of the base plate 10. An optical detection module, a data processing and transmission module, and a power supply module 8 are disposed on the surface of the base plate 10. An LED display screen 7 is disposed on the side of the housing 9.

[0040] The housing 9 has an openable and closable cover 11. After opening the cover 11, the sample cell 1 can be placed or removed.

[0041] This device is equipped with a mode selection switch for switching between three detection modes: ultraviolet absorption, fluorescence, and chemiluminescence. All three modes share the same sample cell 1 as the detection window.

[0042] When using the system, first connect the power module 8, press the power button to start the system, check whether the wiring connection is correct with the sensor to be detected, press the start button on the LED display screen 7, and the LED display screen 7 will display normally.

[0043] Depending on the detection requirements, adjust the display screen to select "UV-Vis" or "Fluorescence" mode via the mode selection switch, and connect the corresponding sensor. The system will automatically match the corresponding detection unit parameters.

[0044] Select a light source within the required wavelength range for detection, insert it into light source slot 3, adjust the distance according to experimental requirements, and perform calibration.

[0045] Place the sample cell 1 containing the test substance into the device, close the cover 1 to prevent interference from other light, and then perform the test. The LED display screen 7 displays the parameters, which can be read directly or recorded and read through the USB port 12 and the computer terminal 13. To switch between "UV-Vis" and "Fluorescence" modes, the wiring connected to the corresponding sensor must be changed, and the system will automatically match again.

[0046] To switch to "chemiluminescence" mode, there is no need to switch the circuit; simply turn off the light source and perform the detection. Data transmission is the same as above.

[0047] After the test is complete, press the power button to turn off the device; the system will then shut down.

[0048] The scope of protection claimed by this utility model is not limited to the specific embodiments described above. For those skilled in the art, this utility model can have various modifications and alterations. Any modifications, improvements and equivalent substitutions made within the concept and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-mode optical detection device, characterized in that, include: Optical inspection module, data processing and transmission module, display module, and power supply module; The optical detection module includes a sample cell, a light source, a light source slot, an ultraviolet-absorbance sensor, and a fluorescence sensor; The sample cell includes a first side, a second side, a third side, and a fourth side that are adjacent to each other and perpendicular to each other; the light source slot is set directly opposite the first side of the sample cell, and the light source is pluggably installed in the light source slot; an ultraviolet absorbance sensor is installed on the outside of the third side of the sample cell, and a fluorescence sensor is installed on the outside of the second or fourth side of the sample cell. The data processing and transmission module includes a microcontroller, which is connected to the ultraviolet-absorbance sensor and the fluorescence sensor in the display module and the optical detection module, respectively. The power module is connected to the light source slot, ultraviolet absorbance sensor, and fluorescence sensor in the display module, data processing and transmission module, and optical detection module, respectively.

2. The multi-mode optical detection device according to claim 1, characterized in that: The light source slot includes two or more rows of slots for adjusting the light distance.

3. The multi-mode optical detection device according to claim 1, characterized in that: The light source is a laser or a photodiode.

4. The multi-mode optical detection device according to claim 1, 2 or 3, characterized in that: The sample cell is a cuvette.

5. The multi-mode optical detection device according to claim 4, characterized in that: The microcontroller model of the data processing and transmission module is STM32F103C8T6.

6. The multi-mode optical detection device according to claim 1 or 5, characterized in that: The data processing and transmission module integrates a data communication interface, which is a USB port.

7. The multi-mode optical detection device according to claim 6, characterized in that: The power module is a rechargeable lithium battery or an external power source.

8. The multi-mode optical detection device according to claim 1 or 7, characterized in that: It includes a housing and a base plate. The bottom of the housing is detachably connected to the edge of the base plate. The optical detection module, data processing and transmission module and power supply module are set on the surface of the base plate, and the display module is set on the side of the housing.

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