A multi-channel fast switching spectral detection system

Abstract

The utility model relates to the field of spectral analysis technology discloses a kind of multi-channel fast switching spectrum detection system, including spectrometer, optical fiber switch, first collimator and multiple second collimators, multiple second collimators are sequentially arranged along the optical fiber switch, the optical fiber switch is equipped with moving mechanism, the first collimator is set on the moving mechanism, the moving mechanism drives the first collimator to move, to make the first collimator align different second collimators, the spectrometer is connected with the first collimator by optical fiber, multiple second collimators are respectively connected different sampling device by optical fiber. The moving mechanism on optical fiber switch drives first collimator to move, so that first collimator aligns different second collimators, let spectrometer connection and different sampling device establish passage, realize the switching of different sampling device, simple operation, switching speed is fast, significantly improve the efficiency of spectrum detection.

Description

Technical Field

[0001] This utility model relates to the field of spectral analysis technology, and in particular to a multi-channel fast-switching spectral detection system. Background Technology

[0002] In spectral analysis, different sampling devices (such as cuvettes, flow cells, and transmission probes) have diverse applications. However, existing spectrometers suffer from complex operations and slow switching speeds when switching between different sampling devices, limiting the efficiency and flexibility of spectral detection. Currently, spectrometers and sampling devices are connected one-to-one; switching requires disassembling intermediate accessories and then reinstalling them on another sampling device, which is cumbersome, time-consuming, and inefficient. Utility Model Content

[0003] The purpose of this invention is to provide a multi-channel fast-switching spectral detection system, which realizes rapid switching of multiple signals and significantly improves the efficiency of spectral detection.

[0004] To achieve the above objectives, this utility model provides a multi-channel fast-switching spectral detection system, including a spectrometer, an optical fiber switcher, a first collimator, and multiple second collimators. The multiple second collimators are arranged sequentially along the optical fiber switcher. The optical fiber switcher is provided with a moving mechanism. The first collimator is disposed on the moving mechanism. The moving mechanism drives the first collimator to move so that the first collimator is aligned with different second collimators. The spectrometer is connected to the first collimator through an optical fiber, and the multiple second collimators are respectively connected to different sampling devices through optical fibers.

[0005] As a preferred embodiment, the fiber optic switcher includes a base and a support frame, the moving mechanism includes a support block and a driving device, the support frame and the driving device are disposed on the base, the driving device is connected to the support block to drive the support block to move, a plurality of second collimators are disposed on the support frame, and the first collimator is disposed on the support block.

[0006] As a preferred embodiment, the driving device includes a drive motor, a lead screw, a slider, and a drive frame. The drive frame is mounted on the base, the drive motor is mounted on one end of the drive frame, one end of the lead screw is connected to the output shaft of the drive motor, the other end of the lead screw is rotatably connected to the other end of the drive frame, the slider is threadedly connected to the lead screw, and the slider is connected to the support block.

[0007] As a preferred embodiment, the driving device further includes a guide rod, the two ends of which are respectively connected to the two ends of the driving frame. The guide rod is arranged parallel to the lead screw, and the slider is provided with a guide hole through which the guide rod passes.

[0008] As a preferred embodiment, the system further includes a control device and multiple position detection devices. The position detection devices are mounted on the base and correspond one-to-one with the second collimator. The position detection devices are communicatively connected to the control device, and the control device is controllably connected to the drive device.

[0009] As a preferred embodiment, the position detection device is a photoelectric sensor, and the slider is provided with a baffle.

[0010] As a preferred embodiment, the fiber optic switch further includes two microswitches, which are disposed at both ends of the support frame and are electrically connected to the drive device.

[0011] As a preferred embodiment, the first collimator is detachably connected to the support block, and the second collimator is detachably connected to the support frame.

[0012] As a preferred embodiment, the support block is provided with a first mounting hole, the first collimator is inserted into the first mounting hole, and the support frame is provided with a plurality of second mounting holes, the second collimator is inserted into the second mounting holes.

[0013] As a preferred embodiment, the sampling device is a cuvette, a flow cell, or a transmission probe.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention features an optical fiber switcher, a first collimator, and multiple second collimators. The first collimator is connected to the spectrometer via an optical fiber, and the multiple second collimators are connected to different sampling devices. A moving mechanism on the optical fiber switcher moves the first collimator, thereby aligning it with different second collimators. This allows the spectrometer to establish pathways with different sampling devices, enabling switching between them. The invention is simple to operate, has a fast switching speed, and significantly improves the efficiency of spectral detection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the multi-channel fast-switching spectral detection system according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the fiber optic switch according to an embodiment of the present invention.

[0016] In the diagram, 100-spectrometer; 200-fiber optic switcher; 210-base; 220-support frame; 230-support block; 240-drive motor; 250-lead screw; 260-slider; 270-drive frame; 280-guide rod; 300-first collimator; 400-second collimator; 500-sampling device; 600-fiber optic cable. Detailed Implementation

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0018] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] Example 1 like Figure 1 and Figure 2As shown, a preferred embodiment of the present invention provides a multi-channel fast-switching spectral detection system, comprising a spectrometer 100, an optical fiber switch 200, a first collimator 300, and multiple second collimators 400. The multiple second collimators 400 are arranged sequentially along the optical fiber switch 200. The optical fiber switch 200 is provided with a moving mechanism, and the first collimator 300 is mounted on the moving mechanism. The moving mechanism drives the first collimator 300 to move so that the first collimator 300 is aligned with different second collimators 400. The spectrometer 100 is connected to the first collimator 300 via an optical fiber 600, and the multiple second collimators 400 are respectively connected to different sampling devices 500 via optical fibers 600. This embodiment uses an optical fiber switcher 200, a first collimator 300, and multiple second collimators 400. The first collimator 300 is connected to the spectrometer 100 via an optical fiber 600, and the multiple second collimators 400 are connected to different sampling devices 500. The moving mechanism on the optical fiber switcher 200 moves the first collimator 300, thereby aligning the first collimator 300 with different second collimators 400. This allows the spectrometer 100 to establish a path with different sampling devices 500, enabling switching between different sampling devices 500. The operation is simple, the switching speed is fast, and the efficiency of spectral detection is significantly improved.

[0022] Specifically, the fiber optic switcher 200 of this embodiment includes a base 210 and a support frame 220. The moving mechanism includes a support block 230 and a driving device. The support frame 220 and the driving device are disposed on the base 210. The driving device is connected to the support block 230 to drive the support block 230 to move. A plurality of second collimators 400 are disposed on the support frame 220, and a first collimator 300 is disposed on the support block 230.

[0023] In this embodiment, the driving device includes a drive motor 240, a lead screw 250, a slider 260, and a drive frame 270. The drive frame 270 is mounted on the base 210. The drive motor 240 is mounted on one end of the drive frame 270. One end of the lead screw 250 is connected to the output shaft of the drive motor 240, and the other end of the lead screw 250 is rotatably connected to the other end of the drive frame 270. The slider 260 is threadedly connected to the lead screw 250 and is connected to the support block 230. When the drive motor 240 is working, it drives the lead screw 250 to rotate. Because the slider 260 is threadedly connected to the lead screw 250, the slider 260 moves along the axial direction of the lead screw 250, thereby driving the support block 230 to move, thus realizing the movement of the first collimator 300. When the first collimator 300 is aligned with one of the second collimators 400, that is, when the first collimator 300 and the second collimator 400 are on the same straight line, the drive motor 240 stops, and the spectrometer 100 is connected to the sampling device 500 connected to the second collimator 400.

[0024] In addition, the drive device also includes a guide rod 280, the two ends of which are connected to the two ends of the drive frame 270. The guide rod 280 is arranged parallel to the lead screw 250, and the slider 260 is provided with a guide hole through which the guide rod 280 passes. The guide rod 280 serves to limit the direction and offset of the drive movement.

[0025] In this embodiment, the first collimator 300 is detachably connected to the support block 230, and the second collimator 400 is detachably connected to the support frame 220. The first collimator 300 and the second collimator 400 can be repaired or replaced. The support block 230 has a first mounting hole, through which the first collimator 300 passes. The support frame 220 has multiple second mounting holes, through which the second collimator 400 passes. Additionally, the support block 230 has a first locking nut, the threaded hole of which aligns with the first mounting hole, and the first collimator 300 is threadedly connected to the first locking nut. The support frame 220 has a second locking nut, the threaded hole of which aligns with the second mounting hole, and the second collimator 400 is threadedly connected to the second locking nut. Using locking nuts to fix the collimator not only allows for quick installation and disassembly but also ensures a stable connection.

[0026] Optionally, the sampling device 500 can be a cuvette, a flow cell, or a transmission probe. It should be noted that one second collimator 400 is connected to one sampling device 500, and different second collimators 400 can be connected to the same type of sampling device 500. In this embodiment, multiple second collimators 400 connected to different sampling devices 500 refer to devices that are not the same sampling device 500.

[0027] Example 2 The difference between this embodiment and Embodiment 1 is that, based on Embodiment 1, this embodiment further explains the multi-channel fast switching spectral detection system.

[0028] The multi-channel fast-switching spectral detection system of this embodiment also includes a control device and multiple position detection devices. The position detection devices are mounted on the base 210 and correspond one-to-one with the second collimator 400. The position detection devices are communicatively connected to the control device, and the control device is controllably connected to the drive device. When the first collimator 300 is aligned with the second collimator 400, the position detection device corresponding to the second collimator 400 detects the first collimator 300 and outputs a signal to the control device. The control device then controls the drive device to stop the drive motor 240, thereby achieving precise control over the movement of the first collimator 300 and providing automation of the detection system.

[0029] Optionally, the position detection device is a photoelectric sensor, and the slider 260 is equipped with a baffle. In use, when it is necessary to switch to a certain sampling device 500, the control device opens the position detection device corresponding to the second collimator 400 connected to the sampling device 500. When the slider 260 moves in front of the position detection device, the baffle on the slider 260 is opposite to the position detection device, triggering a signal. At this time, the first collimator 300 is in position, and the position detection device outputs a signal to the control device, which then controls the drive motor 240 to stop.

[0030] In addition, the fiber optic switch 200 also includes two microswitches, which are located at both ends of the support frame 220 and electrically connected to the drive device. The microswitches are located on the movement trajectory of the support block 230. When the support block 230 exceeds the preset range, it collides with the microswitches, which can shut down the drive device and prevent collisions, equipment damage, or safety accidents, thus ensuring high safety.

[0031] The other structures in this embodiment are the same as in Embodiment 1, and will not be described again here.

[0032] Example 3 The difference between this embodiment and Embodiment 1 is that, based on Embodiment 1, this embodiment provides a further explanation of the moving mechanism.

[0033] In this embodiment, the moving mechanism further includes a slide rail disposed on the base 210, which is parallel to the support frame 220. The support block 230 is slidably connected to the slide rail, and the slide rail guides the movement of the support block 230. The support block 230 is provided with a groove extending through both ends, and the slide rail is inserted into the groove. In this embodiment, the support block 230 is provided with a groove, making the support block 230 U-shaped. The slide rail is embedded in the groove, which can effectively guide the sliding of the support block 230 while limiting the offset of the support block 230, so as to ensure that the first collimator 300 and the second collimator 400 are on the same straight line.

[0034] Furthermore, in this embodiment, a ball bearing is provided between the bottom of the groove and the slide rail. The bottom of the groove has a ball groove in which the ball bearing can be rolled and embedded. The ball bearing reduces the friction when the support block 230 slides, thereby reducing the driving resistance and preventing damage to the slider 260, the drive rod, and the drive motor 240.

[0035] In addition, the slide rail in this embodiment is provided with lubricating oil grooves on both sides, and a scraper is connected to the bottom of the support block 230. Lubricating oil can be placed in the lubricating oil grooves. The scraper extends into the lubricating oil grooves. When the support block 230 slides, the scraper splashes lubricating oil to lubricate the side wall of the slide rail, thereby reducing the friction between the support block 230 and the slide rail, making the sliding of the support block 230 smoother, and preventing damage to the slider 260, drive rod, and drive motor 240. Furthermore, the lubricating groove is provided with several arc-shaped protrusions. The scraper in this embodiment is a flexible scraper, optionally, a rubber sheet. The arc-shaped protrusions can deform and recover the scraper, improving the lubricating oil splashing effect. In this embodiment, the arc-shaped protrusions extend in a wave shape along the length of the lubricating oil groove.

[0036] The other structures in this embodiment are the same as in Embodiment 2, and will not be described again here.

[0037] In summary, this utility model embodiment provides a multi-channel fast-switching spectral detection system. It comprises an optical fiber switcher 200, a first collimator 300, and multiple second collimators 400. The first collimator 300 is connected to the spectrometer 100 via an optical fiber 600, and the multiple second collimators 400 are connected to different sampling devices 500. A moving mechanism on the optical fiber switcher 200 moves the first collimator 300, thereby aligning the first collimator 300 with different second collimators 400. This allows the spectrometer 100 to establish pathways with different sampling devices 500, enabling switching between them. The system is simple to operate, has a fast switching speed, and significantly improves the efficiency of spectral detection.

[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A multi-channel fast-switching spectral detection system, characterized in that, The device includes a spectrometer (100), an optical fiber switch (200), a first collimator (300), and multiple second collimators (400). The multiple second collimators (400) are arranged sequentially along the optical fiber switch (200). The optical fiber switch (200) is provided with a moving mechanism. The first collimator (300) is disposed on the moving mechanism. The moving mechanism drives the first collimator (300) to move so that the first collimator (300) is aligned with different second collimators (400). The spectrometer (100) is connected to the first collimator (300) through an optical fiber (600). The multiple second collimators (400) are respectively connected to different sampling devices (500) through optical fibers (600).

2. The multi-channel fast-switching spectral detection system according to claim 1, characterized in that, The fiber optic switch (200) includes a base (210) and a support frame (220). The moving mechanism includes a support block (230) and a driving device. The support frame (220) and the driving device are mounted on the base (210). The driving device is connected to the support block (230) to drive the support block (230) to move. A plurality of second collimators (400) are mounted on the support frame (220), and a first collimator (300) is mounted on the support block (230).

3. The multi-channel fast-switching spectral detection system according to claim 2, characterized in that, The driving device includes a drive motor (240), a lead screw (250), a slider (260), and a drive frame (270). The drive frame (270) is mounted on the base (210). The drive motor (240) is mounted on one end of the drive frame (270). One end of the lead screw (250) is connected to the output shaft of the drive motor (240). The other end of the lead screw (250) is rotatably connected to the other end of the drive frame (270). The slider (260) is threadedly connected to the lead screw (250) and is connected to the support block (230).

4. The multi-channel fast-switching spectral detection system according to claim 3, characterized in that, The driving device also includes a guide rod (280), the two ends of which are connected to the two ends of the driving frame (270) respectively. The guide rod (280) is arranged parallel to the lead screw (250). The slider (260) is provided with a guide hole, and the guide rod (280) passes through the guide hole.

5. The multi-channel fast-switching spectral detection system according to claim 3, characterized in that, It also includes a control device and multiple position detection devices. The position detection devices are mounted on the base (210). Each position detection device corresponds to one of the second collimators (400). The position detection devices are communicatively connected to the control device, and the control device is controllably connected to the drive device.

6. The multi-channel fast-switching spectral detection system according to claim 5, characterized in that, The position detection device is a photoelectric sensor, and the slider (260) is provided with a baffle.

7. The multi-channel fast-switching spectral detection system according to claim 2, characterized in that, The fiber optic switch (200) also includes two microswitches, which are disposed at both ends of the support frame (220) and are electrically connected to the drive device.

8. The multi-channel fast-switching spectral detection system according to claim 2, characterized in that, The first collimator (300) is detachably connected to the support block (230), and the second collimator (400) is detachably connected to the support frame (220).

9. The multi-channel fast-switching spectral detection system according to claim 8, characterized in that, The support block (230) is provided with a first mounting hole, and the first collimator (300) passes through the first mounting hole. The support frame (220) is provided with a plurality of second mounting holes, and the second collimator (400) passes through the second mounting holes.

10. The multi-channel fast-switching spectral detection system according to claim 1, characterized in that, The multi-channel rapid switching spectral detection system according to claim 1 is characterized in that the sampling device (500) is a cuvette, a flow cell, or a transmission probe.

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