Sample testing chamber and Raman spectrometer

Abstract

The present invention discloses a sample testing chamber and a Raman spectrometer. The sample testing chamber includes a base, a support, a slide, and a cover. The base has a mutually connected accommodating cavity and a light-transmitting hole. The light-transmitting hole is provided in the bottom wall of the accommodating cavity. The support is at least partially accommodated in the accommodating cavity. The slide is accommodated in the accommodating cavity and connected to one end of the support near the light-transmitting hole. The slide and the support jointly define a sample receiving slot. The cover is detachably connected to the base, covers and seals the sample receiving slot, and can adjust the focal length between the sample and the laser light source. The Raman spectrometer includes the above-mentioned sample testing chamber and detection device. The sample testing chamber of the present invention is easy to assemble and disassemble and can effectively prevent samples from falling.

Description

Technical Field

[0001] The present invention relates to the technical field of detection and analysis equipment, and in particular to a sample testing chamber and a Raman spectrometer. Background Art

[0002] Raman spectrometer is a common instrument used to detect the composition of substances. The basic principle of Raman spectrometer is to make light shine on the sample to be analyzed to cause Raman scattering, and then obtain the spectrum of the scattered light. By analyzing the spectrum of the scattered light, the composition of the substance can be known. There is a handheld Raman spectrometer on the market. The main body of the detection device of this handheld Raman instrument is usually used with an external sample chamber. After the sample is loaded inside the sample chamber, the sample chamber is connected to the main part of the instrument, and then the light is directed to the sample in the sample chamber. Some sample chambers in the prior art cannot adjust the distance between the sample and the laser light source, making it difficult to accurately test the sample. During the sample loading process or after loading, the sample is easy to fall off and even contaminate the objective lens of the Raman instrument. Summary of the Invention

[0003] The present invention aims to provide a detection accessory for a portable Raman instrument during use. To this end, the present invention proposes a sample testing chamber that can prevent samples from falling and can also adjust the distance between the sample and the laser light source.

[0004] The present invention also provides a Raman spectrometer comprising the sample testing chamber.

[0005] According to the first aspect of the present invention, the sample testing chamber includes: a base body having a accommodating cavity and a light-transmitting hole that are interconnected, the light-transmitting hole is opened on the bottom wall of the accommodating cavity, the slide can transmit light, and the light-transmitting hole faces the slide; a cover body that is detachably connected to the base body, and the cover body covers the side of the slide facing away from the light-transmitting hole.

[0006] The sample testing chamber of the present invention has the following beneficial effects: the light-transmitting hole is used for inserting the detection probe of the detection device, and the light emitted by the detection device can pass through the slide and illuminate the sample inside the chamber, thereby performing detection. The slide can be used to carry the sample. After the cover body is connected to the base body, the cover body can cover the slide to prevent the sample from falling. In addition, for this sample testing chamber, after the slide is placed in the receiving cavity, the sample can be placed on the slide and covered with the cover body to achieve sample loading (or the sample can be placed on the slide first and then the slide is placed in the receiving cavity). The distance between the laser light source and the sample can be adjusted by the thread between the cover body and the base body; after the detection is completed, the slide can be removed and the sample on the slide can be poured out after the cover body is removed. The sample testing chamber itself is relatively convenient to disassemble and assemble, which is convenient for loading samples and convenient for removing samples and cleaning the sample testing chamber after the detection is completed.

[0007] According to some embodiments of the present invention, the sample testing chamber further includes a support member, which is accommodated in the accommodating cavity. The specimen slide is connected to one end of the support member close to the light-transmitting hole. The specimen slide and the support member jointly define a sample accommodating slot, and the cover body covers and closes the sample accommodating slot.

[0008] According to some embodiments of the present invention, the outer surface of the cover body has a first thread, the side wall of the accommodating cavity has a second thread, the first thread and the second thread are screwed together, and the cover body can be rotated relative to the base body to change the distance between the slide and the light-transmitting hole.

[0009] According to some embodiments of the present invention, the sample testing chamber further includes an elastic member and a support member, the support member is accommodated in the accommodating cavity and connected to the specimen slide, the elastic member is arranged in the accommodating cavity, one end of the elastic member is connected to the bottom wall of the accommodating cavity, the other end of the elastic member is abutted against one end of the support member close to the light-transmitting hole, and the elastic member and the cover body jointly clamp the support member, and the elastic force of the elastic member is used to drive the support member to move in a direction away from the light-transmitting hole.

[0010] According to some embodiments of the present invention, the cover body includes a main body and a cover glass, the main body is connected to the base, the cover glass is connected to the main body, and the cover glass covers the sample holding tank.

[0011] According to some embodiments of the present invention, a gap is formed between an end surface of the support member at one end away from the specimen slide and the cover glass.

[0012] According to some embodiments of the present invention, the support member, the base and the main body are all made of opaque material.

[0013] According to some embodiments of the present invention, the support member has a channel and a mounting groove, the mounting groove is connected to one end of the channel, and the slide is installed in the mounting groove and covers one end of the channel to form the sample holding groove.

[0014] According to some embodiments of the present invention, the support member includes a first cylinder and a second cylinder, the first cylinder and the slide are respectively connected to the two ends of the second cylinder, the diameter of the first cylinder is smaller than the diameter of the second cylinder, a part of the channel is arranged inside the first cylinder, and the other part of the channel and the mounting groove are arranged inside the second cylinder; the cover body is sleeved on the outside of the first cylinder, and the end of the second cylinder close to the first cylinder is abutted against the end face of the cover body.

[0015] According to the second aspect of the present invention, the Raman spectrometer includes: a detection device and a detection probe, the end face of the detection probe is capable of emitting light and collecting scattered light; as described in the first aspect of the embodiment, the detection probe is detachably connected to the sample testing chamber, the detection probe is arranged in the light-transmitting hole, and the detection probe faces the slide.

[0016] The Raman spectrometer according to the second embodiment of the present invention has at least the following beneficial effects: since the sample is not easily dropped from the slide and the sample test chamber is easy to assemble and disassemble, the sample loading efficiency is high and the detection efficiency of the Raman spectrometer is high.

[0017] According to some embodiments of the present invention, the base body further includes a connecting key protruding from the wall surface of the light-transmitting hole, and the outer peripheral surface of the detection probe has a connecting groove, and the connecting key is arranged in the connecting groove.

[0018] According to some embodiments of the present invention, the connecting groove includes a first extension portion and a second extension portion, the end face of the detection probe has an opening for a connecting key to pass through, the opening is connected to one end of the first extension portion, the other end of the first extension portion is connected to one end of the accommodating cavity, the first extension portion extends axially along the light-transmitting hole, and the second extension portion extends circumferentially along the light-transmitting hole, and the connecting key can slide in the first extension portion and the second extension portion.

[0019] According to some embodiments of the present invention, the Raman spectrometer is portable.

[0020] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0022] Figure 1 is a schematic diagram of a sample testing chamber in one embodiment of the present invention;

[0023] Figure 2 for Figure 1 Schematic diagram of the sample test chamber in FIG;

[0024] Figure 3 for Figure 1 A cross-sectional view of the sample test chamber in FIG.

[0025] Figure 4 for Figure 3 Schematic diagram of the sample test chamber in FIG;

[0026] Figure 5 is a schematic diagram of a Raman spectrometer in one embodiment of the present invention;

[0027] Figure 6 Schematic diagram of the connection slot of the detection probe in one embodiment of the present invention.

[0028] Figure markings: 100-sample testing chamber, 101-base, 102-cover, 103-light transmission hole, 104-connecting key, 202-main body, 203-first thread, 204-cover glass, 205-support member, 206-first cylinder, 207-second cylinder, 208-slide, 209-elastic member, 210-second thread, 211-accommodating chamber, 301-sample receiving groove, 401-installing groove, 402-channel, 403-sleeving groove, 500-Raman spectrometer, 501-detection device, 502-detection probe, 503-display screen, 600-connecting groove, 601-first extension portion, 602-second extension portion, 603-opening. DETAILED DESCRIPTION

[0029] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0031] In the description of the present invention, "several" means more than one, "plurality" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] The present invention provides a sample testing chamber 100, referring to Figure 1 and Figure 3 The sample testing chamber 100 includes a base 101 , a cover 102 , a support 205 and a slide 208 .

[0034] Reference Figure 3 and Figure 4 The base 101 has a light-transmitting hole 103 and a receiving cavity 211 that are interconnected. The light-transmitting hole 103 is opened on the bottom wall of the receiving cavity 211. The specimen slide 208 is located in the receiving cavity 211. The specimen slide 208 can carry a sample to be detected (the sample is not specifically shown), and the light-transmitting hole faces the specimen slide 208. The specimen slide 208 is light-transmitting (for example, the specimen slide 208 can be made of quartz glass) so that the light of the Raman spectrometer 500 can pass through the specimen slide 208 and illuminate the sample. The cover 102 is detachably connected to the base 101, and the cover 102 covers the side of the specimen slide 208 that is opposite to the light-transmitting hole 103.

[0035] Combine Figure 3 and Figure 5 , the light-transmitting hole 103 is for the detection device 501 to be inserted, more specifically, referring to Figure 5 The detection device 501 includes a detection probe 502, which is inserted into the light-transmitting hole 103. Light emitted from the detection probe 502 can pass through the specimen slide 208 and illuminate the sample on the specimen slide 208. Scattered light generated by the sample can also pass through the specimen slide 208 and be received by the detection probe 502.

[0036] Reference Figure 3 One of the operating methods for loading samples in the sample test chamber 100 is roughly as follows: the sample can be placed on the slide 208 first, and then the slide 208 is placed in the accommodating cavity 211 of the base 101. Next, the cover 102 is connected to the base 101 so that the cover 102 covers the slide 208. Similarly, after the test is completed, the steps for removing the sample are roughly as follows: separate the cover 102 from the base 101, then remove the slide 208, and then pour out the sample on the slide 208. After the sample is removed, the slide 208 can be cleaned. The disassembly and assembly of the sample test chamber 100 itself is relatively convenient, which makes it convenient to load samples and to remove samples and clean the sample test chamber 100 after the test is completed.

[0037] In the sample testing chamber 100 provided by the present invention, the slide 208 can be used to carry samples to prevent the samples from falling from the slide 208 to the light-transmitting hole 103 and contaminating the detection device 501; moreover, after the cover 102 is connected to the base 101, the cover 102 can cover the slide 208, which can also prevent the samples from falling.

[0038] Other specific structures of the sample testing chamber 100 are introduced below.

[0039] In one embodiment, the sample testing chamber 100 further includes a support member 205 disposed within the receiving cavity 211. A specimen slide 208 is connected to one end of the support member 205 near the light-transmitting hole 103. The specimen slide 208 and the support member 205 together define a sample receiving well 301. The cover 102 covers and seals the sample receiving well 301. The inner surface of the support member 205 prevents the sample from falling out of the sample receiving well 301, thereby further reducing the risk of the sample falling off the specimen slide 208. When the support member 205 is provided, the specimen slide 208 can be first secured to the support member 205. When the sample is to be loaded, the specimen slide 208 and the support member 205 can be directly placed into the receiving cavity 211 together. It should be noted that in other embodiments, the support member 205 is not required. If the support member 205 is not provided, the specimen slide 208 can be placed directly on the bottom wall of the receiving cavity 211.

[0040] In one embodiment, the cover 102 and the base 101 can be connected by a threaded connection. Figures 2 to 4 The outer surface of the cover 102 has a first thread 203, and the side wall of the accommodating cavity 211 has a second thread 210, and the first thread 203 and the second thread 210 are screwed together. More specifically, the first thread 203 can be provided on the outer peripheral surface of the main body 202.

[0041] In some embodiments, when cover 102 is threadedly connected to base 101, the distance between specimen slide 208 and light-transmitting hole 103 can change with the movement of cover 102. In this arrangement, by rotating cover 102 and adjusting its position relative to base 101, the distance between the sample on specimen slide 208 and the laser light source of Raman spectrometer 500 can be changed, thereby ensuring that the light from detection device 501 is correctly focused on the sample and ensuring detection accuracy.

[0042] For example, refer to Figures 2 to 4 In one embodiment, the sample testing chamber 100 further includes an elastic member 209, which is disposed in the accommodating cavity 211. One end of the elastic member 209 is connected to the bottom wall of the accommodating cavity, and the other end of the elastic member 209 abuts against the support member 205, and the end of the support member 205 close to the light-transmitting hole 103 abuts against the support member 205; the elastic member 209 and the cover body 102 jointly clamp the support member 205, thereby ensuring the position stability of the support member 205 and the sealing of the sample holding groove 301, wherein the elastic force of the elastic member 209 is used to drive the support member 205 to move in a direction away from the light-transmitting hole 103.

[0043] The elastic member 209 can be specifically configured as a spring, and the light emitted by the detection device 501 can pass through the central space of the elastic member 209 and illuminate the specimen slide 208. Figure 3, the elastic member 209 is in a compressed state. If the distance between the specimen slide 208 and the light-transmitting hole 103 needs to be increased, the cover 102 can be rotated to move the cover 102 away from the light-transmitting hole 103. Accordingly, the degree of compression of the elastic member 209 decreases, the elastic member 209 extends, and pushes the support member 205 to move, so that both the specimen slide 208 and the support member 205 move away from the light-transmitting hole 103. Similarly, referring to Figure 3 If the distance between specimen slide 208 and light-transmitting hole 103 needs to be reduced, cover 102 can be rotated and moved toward light-transmitting hole 103, pushing support member 205 to move, thereby moving specimen slide 208 and support member 205 toward light-transmitting hole 103. Accordingly, during this process, the degree of compression of elastic member 209 increases, causing elastic member 209 to contract. It should be noted that during the rotation of cover 102, support member 205 does not necessarily rotate along with cover 102.

[0044] In other embodiments, the elastic member 209 may not be provided in the sample testing chamber 100. For example, the support member 205 may be connected to the cover 102 by a snap-fit ​​connection, with the support member 205 suspended in the air. When the cover 102 moves relative to the base 101, the support member 205 and the slide 208 connected to the support member 205 also move together.

[0045] Reference Figure 4 In one embodiment, the support member 205 has a channel 402 and a mounting groove 401. The mounting groove 401 is connected to one end of the channel 402. The specimen slide 208 is installed in the mounting groove 401. The specimen slide 208 covers one end of the channel 402 to form a sample receiving groove 301. Specifically, the side surface of the specimen slide 208 facing away from the light-transmitting hole 103 serves as the bottom wall of the sample receiving groove 301, and the wall surface of the channel 402 serves as the side wall of the sample receiving groove 301. The support member 205 is provided with the mounting groove 401 to facilitate the positioning of the specimen slide 208 when assembled with the support member 205. The specimen slide 208 and the groove wall of the mounting groove 401 can be connected by bonding.

[0046] More specifically, refer to Figure 4 In one embodiment, the support member 205 includes a first cylinder 206 and a second cylinder 207. The diameter of the first cylinder 206 is smaller than that of the second cylinder 207. The first cylinder 206 and the slide 208 are respectively connected to the two ends of the second cylinder 207. A portion of the channel 402 is disposed inside the first cylinder 206, and another portion of the channel 402 is disposed inside the second cylinder 207. The mounting groove 401 is disposed inside the second cylinder 207. That is, the support member 205 has a stepped cylindrical structure. Figures 2 to 4The cover 102 is sleeved over the first barrel 206. More specifically, the main body 202 of the cover 102 is sleeved over the first barrel 206. The end of the second barrel 207, which is closer to the first barrel 206, abuts against the end surface of the cover 102, that is, the top end surface of the second barrel 207 abuts against the bottom end surface of the cover 102. The sleeve of the cover 102 over the first barrel 206 enables radial positioning between the cover 102 and the support member 205. The abutment between the second barrel 207 and the end surface of the cover 102 enables axial positioning between the cover 102 and the support member 205, and improves the sealing effect of the sample holding reservoir 301.

[0047] Combine Figures 2 to 4 In one embodiment, the cover 102 includes a main body 202 and a cover glass 204. The main body 202 is connected to the base 101, and the cover glass 204 is connected to the main body 202 and covers the sample holding tank 301. The cover glass 204 and the slide 208 can both be made of quartz glass. The cover glass 204 is provided mainly to improve the accuracy of the detection. Specifically, for certain samples (such as thin film samples), the light emitted by the detection device 501 may penetrate the sample and irradiate the cover 102. In this way, the spectrum collected by the detection device 501 will include the scattered spectrum of the material of the cover 102, which will affect the accuracy of the detection. Since the Raman scattering of glass is weak, the impact on the spectrum collected by the detection is small. Therefore, using the cover glass 204 to cover the sample holding tank 301 can reduce the impact of the scattered light of the cover 102 on the detection results, thereby improving the accuracy of the detection.

[0048] Furthermore, to improve detection accuracy, in one embodiment, the main body 202, base 101, and support member 205 can all be made of opaque materials. This prevents ambient light from entering the sample holding well 301, thereby preventing the ambient light from interfering with the sample's scattering spectrum. Specifically, the opaque material can be opaque plastic, metal, or the like. The main body 202, base 101, and support member 205 can be made of the same or different materials, as long as they can block ambient light. Specific examples are not provided here.

[0049] As mentioned above, samples can be placed in sample holding well 301. This method of sample placement is suitable for liquid and powder samples. Thin film samples can also be placed in sample holding well 301. Alternatively, the support member 205 and cover glass 204 can be used to clamp the edges of the sample to facilitate loading thin film samples.

[0050] Specifically, refer to Figure 3In one embodiment, the end surface of the support member 205 close to the cover glass 204 is covered by the cover glass 204, and there is a gap between the end surface of the support member 205 close to the cover glass 204 and the cover glass 204 (the gap is not specifically marked). Figure 3 , there is a gap between the upper section of the support 205 and the lower surface of the cover glass 204, taking the specific direction as a reference. The edge portion of the thin film sample can be set in the gap, that is, the edge of the thin film sample can be clamped by the cover glass 204 and the support 205. The central area of ​​the thin film sample is blocked above the sample holding tank 301, and the light emitted by the detection device 501 can pass through the slide 208 and the sample holding tank 301, thereby irradiating the sample. The advantage of using the cover glass 204 and the support 205 to clamp the edge of the thin film sample is that it can fix the edge portion of the sample, prevent the material from moving significantly due to the shaking of the sample test chamber 100, and prevent the material from wrinkling and curling, thereby improving the detection accuracy of thin film samples.

[0051] In the case where the edge of the sample needs to be clamped between the support 205 and the cover glass 204, the sample loading method is as follows: After the cover glass 204 is connected to the main body 202, it is necessary to first Figure 4 The main body 202 in the apparatus is turned upside down, the sample is placed on the cover glass 204 , the support 205 is then placed on the sample, and the base 101 is placed upside down on the outside of the support 205 .

[0052] Reference Figure 4 In one embodiment, the main body 202 has a sleeve groove 403 at one end close to the light-transmitting hole 103, the cover glass 204 can be set in the sleeve groove 403 and connected to the wall of the sleeve groove 403 (for example, the cover glass 204 and the main body 202 are fixed by bonding), and the first cylinder 206 can be set in the sleeve groove.

[0053] The present invention also provides a Raman spectrometer 500, which includes a detection device 501 and the sample testing chamber 100 of any of the above-described embodiments. The detection device 501 includes a detection probe 502, the end face of which is capable of emitting light and collecting scattered light. The detection probe 502 is detachably connected to the sample testing chamber 100 and disposed in the light-transmitting aperture 103, with the end face of the detection probe 502 facing the specimen slide 208.

[0054] The Raman spectrometer 500 of the present invention has high sample loading efficiency because the sample is not easily dropped from the specimen slide 208 and the sample testing chamber 100 is easy to assemble and disassemble. Therefore, the Raman spectrometer 500 has high detection efficiency.

[0055] In one embodiment, the Raman spectrometer 500 is configured as a portable instrument. Specifically, the Raman spectrometer 500 can be held in the user's hand and operated like a mobile phone. The portable Raman spectrometer 500 is easy to carry and can be taken to various locations, meaning that sample testing no longer needs to be confined to a specific laboratory.

[0056] The detection device 501 itself may have a display screen 503. In one embodiment, the display screen 503 may be configured as a touch screen, and a number of virtual buttons that can be touched by the user may be displayed on the display screen 503. The user can operate the Raman spectrometer 500 by touching the display screen 503. For example, after the user presses the "Start" button on the display screen 503, the Raman spectrometer 500 begins to automatically detect the sample. The detection probe 502 of the detection device 501 emits light and collects scattered light. After a period of time, the test results may be displayed on the display screen 503. Alternatively, in another embodiment, the display screen 503 is configured as a non-touch screen, and the detection device 501 is also provided with physical buttons. The user operates the Raman spectrometer 500 by touching the physical buttons, thereby causing the Raman spectrometer 500 to automatically detect the sample in the sample testing chamber 100.

[0057] In one embodiment, the base 101 includes a connecting key 104, which is protruding from the wall of the light-transmitting hole 103. The outer peripheral surface of the detection probe 502 has a connecting groove 600, and the connecting key 104 is stuck in the connecting groove 600. The outer surface of the connecting key 104 can abut against the groove wall of the connecting groove 600, thereby preventing the sample test chamber 100 from falling off from the detection probe 502. When the sample test chamber 100 needs to be removed, the user can apply a little force to pull out the sample test chamber 100 to disengage the connecting key 104 from the connecting groove 600. The advantage of this setting is that the connection or disassembly between the sample test chamber 100 and the detection probe 502 is more convenient, without the need to use tools such as screwdrivers, nor the need for more tedious operations such as screwing.

[0058] In one embodiment, the connection key 104 can be configured as a dot-shaped protrusion, and accordingly, the connection groove 600 can be configured as a dot-shaped protrusion. In another embodiment, in order to further improve the convenience of disassembly and assembly between the sample test chamber 100 and the detection probe 502, the connection groove 600 can be configured as Figure 6 The shape shown. Figure 6The connecting groove 600 includes a first extension portion 601 and a second extension portion 602. The first extension portion 601 extends along the axial direction of the detection probe 502, and the second extension portion 602 extends along the circumferential direction of the detection probe 502. The end face of the detection probe 502 also has an opening 603. The two ends of the first extension portion 601 are respectively connected to the opening 603 and one end of the second extension portion 602. The opening 603 is for the connecting key 104 to pass through, and the connecting key 104 can slide in the first extension portion 601 and the second extension portion 602.

[0059] exist Figure 6 In the embodiment shown, the connection steps between the sample testing chamber 100 and the detection probe 502 are roughly as follows: first, the connecting key 104 is allowed to enter the first extension portion 601 from the opening 603, and then the connecting key 104 is allowed to slide along the first extension portion 601; when the connecting key 104 slides to the connection between the second extension portion 602 and the first extension portion 601, the connecting key 104 is allowed to slide along the second extension portion 602, and finally the connecting key 104 is stuck at one end of the second extension portion 602 away from the first extension portion 601.

[0060] Similarly, the steps for separating the sample testing chamber 100 from the detection probe 502 are roughly as follows: first, slide the connecting key 104 along the second extension portion 602 to the connection between the first extension portion 601 and the second extension portion 602, and then slide the connecting key 104 along the first extension portion 601 until the connecting key 104 leaves the first extension portion 601 from the opening 603.

[0061] for Figure 6 In the embodiment shown, during the process of connecting or separating the sample test chamber 100 and the detection probe 502, the connecting key 104 can be slid along the first extension portion 601 and the second extension portion 602. The user does not need to laboriously radially deform the light-transmitting hole 103 to disengage the connecting key 104 from the connecting groove 600. Therefore, this embodiment is conducive to improving the convenience of disassembly and assembly between the sample test chamber 100 and the detection probe 502.

[0062] In one embodiment, the connection or disconnection between the sample testing chamber 100 and the detection probe 502 can be achieved through a drive mechanism. For example, a motor-driven fixture can be used to clamp the outer circumference of the sample testing chamber 100. The motor then drives the fixture to rotate a certain angle, thereby driving the sample testing chamber 100 to move along the second extension 602. Next, a cylinder connected to the motor can be activated, driving the motor and the fixture to move in a straight line, thereby moving the sample testing chamber 100 along its own axis and separating it from the detection probe 502. In this way, the sample testing chamber 100 can be automatically disconnected.

[0063] In the description of the present invention, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims

1. A sample test chamber (100), characterized in that: include: The base (101) has a receiving cavity (211) and a light-transmitting hole (103) that are interconnected, and the light-transmitting hole (103) is opened on the bottom wall of the receiving cavity (211); A specimen slide (208) is accommodated in the accommodating cavity (211), the specimen slide (208) is light-transmissive, and the light-transmitting hole (103) faces the specimen slide (208); a cover body (102) detachably connected to the base body (101), the cover body (102) covering a side of the slide (208) facing away from the light-transmitting hole (103); A support member (205), the support member (205) is accommodated in the accommodating cavity (211), the specimen slide (208) is connected to one end of the support member (205) close to the light-transmitting hole (103), the specimen slide (208) and the support member (205) jointly define a sample accommodating groove (301), and the cover body (102) covers and closes the sample accommodating groove (301); The cover body (102) includes a main body (202) and a cover glass (204), wherein the main body (202) is connected to the base body (101), the cover glass (204) is connected to the main body (202), and the cover glass (204) covers the sample holding tank (301).

2. The sample testing chamber (100) according to claim 1, characterized in that: The outer surface of the cover body (102) has a first thread (203), and the side wall of the accommodating cavity (211) has a second thread (210), the first thread (203) and the second thread (210) are screwed together, and the cover body (102) can be rotated relative to the base body (101) to change the distance between the slide (208) and the light-transmitting hole (103).

3. The sample testing chamber (100) according to claim 2, characterized in that: The sample testing chamber (100) further includes an elastic member (209) and a support member (205), wherein the support member (205) is accommodated in the accommodating cavity (211) and connected to the specimen slide (208), and the elastic member (209) is arranged in the accommodating cavity (211), one end of the elastic member (209) is connected to the bottom wall of the accommodating cavity (211), and the other end of the elastic member (209) is abutted against an end of the support member (205) close to the light-transmitting hole (103), and the elastic member (209) and the cover body (102) jointly clamp the support member (205), and the elastic force of the elastic member (209) is used to drive the support member (205) to move in a direction away from the light-transmitting hole (103).

4. The sample testing chamber (100) according to claim 1, characterized in that: There is a gap between the end surface of the support member (205) away from the slide (208) and the cover glass (204).

5. The sample testing chamber (100) according to claim 1, characterized in that: The support member (205), the seat (101) and the main body (202) are all made of opaque material.

6. The sample testing chamber (100) according to claim 1, characterized in that: The support member (205) has a channel (402) and a mounting groove (401), wherein the mounting groove (401) is connected to one end of the channel (402), and the slide (208) is installed in the mounting groove (401) and covers one end of the channel (402) to form the sample holding groove (301).

7. The sample testing chamber (100) according to claim 6, characterized in that: The support member comprises a first cylinder (206) and a second cylinder (207), the first cylinder (206) and the slide (208) are respectively connected to two ends of the second cylinder (207), the diameter of the first cylinder (206) is smaller than the diameter of the second cylinder (207), a portion of the channel (402) is arranged inside the first cylinder (206), and another portion of the channel (402) and the mounting groove (401) are arranged inside the second cylinder (207); The cover body (102) is sleeved on the outside of the first cylinder body (206), and one end of the second cylinder body (207) close to the first cylinder body (206) is in contact with the end surface of the cover body (102).

8. Raman spectrometer (500), characterized in that include: A detection device (501) comprises a detection probe (502), wherein the end surface of the detection probe (502) is capable of emitting light and collecting scattered light; According to the sample testing chamber (100) as described in any one of claims 1 to 7, the detection probe (502) is detachably connected to the sample testing chamber (100), the detection probe (502) is arranged in the light-transmitting hole (103), and the detection probe (502) faces the slide (208).

9. The Raman spectrometer (500) according to claim 8, characterized in that The base (101) further comprises a connecting key (104), wherein the connecting key (104) is protruding from the wall surface of the light-transmitting hole (103), and the outer peripheral surface of the detection probe (502) comprises a connecting groove (600), wherein the connecting key (104) is arranged in the connecting groove (600).

10. The Raman spectrometer (500) according to claim 9, characterized in that The connecting groove (600) includes a first extension portion (601) and a second extension portion (602); the end surface of the detection probe has an opening (603) for the connecting key (104) to pass through; the opening (603) is connected to one end of the first extension portion (601); the other end of the first extension portion (601) is connected to one end of the accommodating cavity (211); the first extension portion (601) extends along the axial direction of the light-transmitting hole (103); the second extension portion (602) extends along the circumferential direction of the light-transmitting hole (103); and the connecting key (104) can slide in the first extension portion (601) and the second extension portion (602).

11. The Raman spectrometer (500) according to claim 8, characterized in that The Raman spectrometer (500) is portable.

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