CN217277887U

CN217277887U - Remote miniature Raman spectrometer with automatic protection function

Info

Publication number: CN217277887U
Application number: CN202123240490.7U
Authority: CN
Inventors: 常化仿; 章祥; 吴明哲; 马宁; 倪天瑞; 陈加龙
Original assignee: Polaris Scientific Instruments Suzhou Co ltd
Current assignee: Polaris Scientific Instruments Suzhou Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-08-23
Anticipated expiration: 2031-12-22

Abstract

The utility model discloses a long-range miniature raman spectroscopy appearance with automatic protect function uses in optical detection instrument technical field, and to prior art's raman spectroscopy appearance lack the problem of safety protection function, its technical scheme main points are: a remote micro Raman spectrometer with an automatic protection function comprises a shell, wherein the shell is of a gun type structure which can be held by a single hand, and a cavity is formed inside the shell; the surface of the Raman probe is attached to the surface of an object to be detected; a laser disposed within the housing; an optical assembly disposed within the housing; the laser cutting protection device is arranged in the shell; a wireless communication device disposed within the housing; the utility model discloses a device is small, can singlehanded hold, has the automatic protect function who detects the live body time automatic cutout laser, can realize remote control.

Description

Remote miniature Raman spectrometer with automatic protection function

Technical Field

The utility model relates to an optical detection instrument technical field, more specifically say, it relates to long-range miniature raman spectroscopy appearance with automatic protect function.

Background

The Raman spectrum is called as molecular fingerprint spectrum, and can carry out rapid and accurate analysis on a sample. The Raman spectrum has wide application and can be applied to a plurality of fields of food, safety, minerals, environment, chemistry, materials, biology and the like. The importance of raman spectroscopy is now increasingly recognized and its use is becoming more widespread.

The existing Raman spectrometer for detecting by utilizing Raman spectrum comprises a laser, a spectrum analyzer and a Raman probe, wherein the laser and the spectrum analyzer are respectively connected with the Raman probe; the working principle is as follows: the Raman probe irradiates the received laser with a certain wavelength output by the laser on the object to be detected, and transmits the collected Raman scattering light excited by the object to be detected under the irradiation of the laser to the spectrum analyzer, and the spectrum analyzer analyzes the Raman spectrum result and the analysis result of the object to be detected.

The ability of raman spectroscopy to identify substances depends on the resolution of the raman spectrometer. The resolution is related to the focal length of the spectrum analyzer, the number of grating lines, and the like. Generally, in order to improve the resolution, a raman spectrum analyzer with a sufficiently large focal length is required, and the volume of the whole system is inevitably increased, thereby losing portability.

At present, chinese patent No. CN209327218U discloses a raman spectrometer, which utilizes a cavity to quickly conduct and disperse laser, so that the collection and spectroscopic imaging optical paths are concentrated in one cavity, thereby greatly reducing the space size, and using a reflective grating can reduce the volume of the spectrometer, and improve the portability of the instrument.

However, the raman spectrometer lacks a safety protection function, and in the detection process, on one hand, laser may irradiate the surface of a human body to cause accidental injury, and on the other hand, when the unknown object to be detected is detected, the human body may be injured by contacting a dangerous sample in a short distance for a long time.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a long-range miniature raman spectroscopy appearance with automatic protect function, the device is small, can hold by one hand, has the automatic protect function who detects the automatic cutout laser when the live body, can realize remote control.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a remote micro Raman spectrometer with an automatic protection function comprises a shell, wherein the shell can be held by a single hand, and a cavity is formed inside the shell; the Raman probe is arranged on one side of the shell, and the surface of the Raman probe is attached to the surface of the object to be detected; a laser disposed within the housing; the optical assembly, the laser cutting protection device and the wireless communication device are arranged in the shell.

By adopting the technical scheme, the device has good portability and is convenient for workers to carry and operate through the shell structure which can be held by one hand; the content of harmful substances in the object to be measured can be accurately measured through the optical component integrated in the shell; the laser cut-off protection device can detect a living body object when measuring an object to be measured, and automatically turns off a power supply of a laser, so that laser is prevented from damaging a human body; through setting up wireless communication device, can realize the remote control of instrument, when the detection to unknown dangerous determinand, be favorable to the staff to detect at safe distance control instrument, safety is guaranteed to the at utmost.

Further, the wireless communication device is a Bluetooth chip and/or a wifi chip arranged in the shell.

The beneficial effects are that: bluetooth chip and wifi chip have characteristics such as low power dissipation, transmission speed are fast and remote connection is convenient, and the wireless interconnection communication at instrument and terminals such as cell-phone, flat board can be realized to bluetooth chip or wifi chip that set up in the casing, through terminal equipment such as cell-phone, flat board realization instrument's remote control.

Further, the laser cutting protection device is an infrared sensing device arranged in the shell, and one end of the infrared sensing device close to the Raman probe extends out of the shell.

The beneficial effects are that: the infrared sensing device has the characteristics of high measurement precision, low loss and stable performance, can timely and accurately sense a moving or living object, automatically cuts off the power supply of the laser after detecting a human body, and protects the human body from being damaged by laser irradiation.

Furthermore, the cavity of the shell is internally detachably provided with a spectrum box, and the optical assembly is arranged in the spectrum box.

The beneficial effects are that: can dismantle the spectrum box through the setting, install optical component after the position that corresponds in the spectrum box, place whole spectrum box in the cavity of casing again, make the inside structure modularization of casing, be favorable to reducing the volume of instrument, make things convenient for dismouting and maintenance.

Further, the optical assembly comprises a dichroic mirror, a relay lens group and a detection device which are sequentially arranged on the spectrum box, the dichroic mirror is arranged right above the laser in an inclined manner of 45 degrees along the direction of the Raman probe, and a focusing lens is arranged in the Raman probe.

The beneficial effects are that: the dichroic mirror is arranged right above the laser, so that incident laser emitted by the laser can be conveniently received, and parallel light formed by 45-degree reflection is converged into the Raman probe; the relay lens group realizes the focusing and the enhancement of Raman scattering optical signals, and gathers the enhanced and focused light rays to the detection device to realize the detection; the focusing lens is beneficial to focusing the dispersed parallel light reflected by the dichroic mirror and irradiating the focused parallel light to the surface of the object to be measured.

Further, the top end of the shell is provided with an indicator lamp assembly.

The beneficial effects are that: the setting of pilot lamp subassembly can be used to multiple states such as indicating instrument operating condition, wireless connection state, battery power state, and audio-visual display instrument's operating condition improves the practicality of instrument.

Further, the shell is of a gun type structure and comprises a holding part and a detection part.

The beneficial effects are that: a gun type structure designed by ergonomics is adopted, so that the holding is convenient; the holding part and the detection part are in modular design, so that the size of the instrument is reduced, and the portability of the instrument is improved.

Furthermore, the one end that is located the portion of gripping in the casing can be dismantled and is provided with rechargeable battery, the tip that is close to rechargeable battery in the casing is provided with the interface that charges.

The beneficial effects are that: the rechargeable battery can store certain electric power to meet the electric power supply of the instrument when the instrument is carried out, and the rechargeable battery is arranged in a detachable structure, so that the rechargeable battery is convenient to replace and install; the charging interface is arranged to provide power supply for the instrument, and can be externally connected with electronic equipment to expand the functionality of the instrument.

Further, rechargeable battery is the rechargeable lithium battery of 3.5Ah, the interface that charges is Type-c switching interface, it is provided with Type-c dust plug in the interface to charge.

The beneficial effects are that: the 3.5Ah rechargeable lithium battery is small in size, light in weight, high in capacity, convenient to embed in an instrument and convenient to carry; the Type-c adapter can be inserted randomly in the forward direction and the reverse direction, the transmission speed is higher, and the Type-c adapter can be arranged to charge an instrument and be externally connected with a USB device, so that data transmission is realized, and the functionality of the instrument is enhanced; the setting of dustproof stopper can prevent that the dust from getting into inside the instrument, strengthens the job stabilization nature of instrument.

Further, a pogo pin connector is arranged on one side, close to the Raman probe, of the surface of the shell.

The beneficial effects are that: the pogo pin connector has the characteristics of small size, high density and light weight, has good elasticity, can realize the precise connection of electronic products, can be used for connecting and identifying different sampling accessories in the scheme, and improves the application range and the safety performance of instruments.

To sum up, the utility model discloses following beneficial effect has:

1. the utility model adopts the modularized structural design, simplifies the internal structure of the instrument, is convenient to install and maintain, and simultaneously, the gun type shell structure is more suitable for the operation of holding by a single hand, and is convenient to carry;

2. the utility model is provided with the laser automatic cutting device and the wireless communication device, can automatically cut off the laser when detecting the living body, can realize remote wireless control, is favorable for preventing accidental injury and improves the safety performance of the instrument;

3. the utility model discloses an operating condition that the pilot lamp subassembly that sets up can real-time display instrument, rechargeable battery and the setting of the interface that charges can satisfy the instrument and last the during operation power supply, pogo pin connector make things convenient for the external extension function module of instrument, have increased the functionality and the practicality of instrument.

Drawings

FIG. 1 is a schematic view of the internal structure of the present embodiment;

FIG. 2 is a schematic structural diagram of the spectrum box of the present embodiment in an exploded state;

fig. 3 is a flow chart of the optical path of the optical component of the present embodiment;

FIG. 4 is a right side view of the present embodiment;

fig. 5 is a rear view of the present embodiment.

In the figure: 1. a housing; 2. a Raman probe; 3. a laser; 4. an optical component; 5. a laser cut-off protection device; 6. an object to be tested; 7. a detection unit; 8. a grip portion; 9. a spectrum box; 10. a focusing lens; 11. a dichroic mirror; 12. a relay lens group; 18. a detection device; 20. a pogo pin connector; 21. an LED lamp panel; 22. a light guide; 23. a rechargeable battery; 24. a charging interface; 25. type-c dustproof plug; 26. a power supply main switch; 27. the laser activates the switch.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and embodiments.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

As shown in fig. 1, a remote micro raman spectrometer with an automatic protection function includes a housing 1, a raman probe 2, a laser 3, an optical component 4 (refer to fig. 2) for spectral analysis, a laser cut-off protection device 5 for detecting a human body, and a wireless communication device for remotely controlling the spectrometer.

Casing 1 adopts ergonomic design, sets up to the rifle formula structure that can singlehanded holding, and casing 1's inside forms the cavity, and casing 1's structure can be divided into detection part 7 (refer to fig. 5) and the portion of gripping 8 (refer to fig. 5), and the portion of gripping 8 is the position that the staff held, is provided with detachable spectrum box 9 in detection part 7's the cavity, and the box body outer wall of spectrum box 9 and casing 1's inner wall are connected.

As shown in fig. 2 and 3, the raman probe 2 is disposed at one end of the housing 1 close to the object to be detected 6, and is used for detecting a sample; during detection, the Raman probe 2 is contacted with the surface of the object to be detected 6, so that laser is focused on the surface of the object to be detected 6 to collect Raman signals; a focusing lens 10 is arranged in the raman probe 2, and the focusing lens 10 adopts a convex mirror, so that incident laser can be focused and then irradiated onto the surface of the object to be measured 6.

As shown in fig. 1, the laser 3 is used to provide a monochromatic light source for the instrument, the laser 3 is arranged at one side of the spectrum box 9 close to the raman probe 2, and the laser 3 in the embodiment adopts a 785nm laser.

As shown in fig. 2 and 3, the optical assembly 4 is disposed in the spectrum box 9 in the housing 1, and the optical assembly 4 includes a dichroic mirror 11, a relay lens group 12, and a detection device 18, which are sequentially disposed in the spectrum box 9, wherein the dichroic mirror 11 is disposed directly above the laser 3, the dichroic mirror 11 is disposed to be inclined by 45 degrees in the direction of the raman probe 2, and the relay lens group 12 is disposed at the rear end of the dichroic mirror 11; during detection, monochromatic laser emitted by the laser 3 is reflected by the dichroic mirror 11 and then focused on the object to be detected 6 through the focusing lens 10, raman laser generated by the object to be detected 6 is received and collimated by the focusing lens 10 and then transmitted through the dichroic mirror 11, and is focused on the detection device 18 through the relay lens group 12, wherein the detection device 18 in the embodiment adopts a CMOS image sensor.

As shown in fig. 1 and 4, the laser cutting protection device 5 is disposed at one side of the housing 1 close to the raman probe 2, and is used for automatically cutting off laser after detecting a human body, so as to protect the human body.

As shown in fig. 1, wireless communication device sets up on the circuit board in casing 1, and the effect is that the remote control instrument detects, and wireless communication device can adopt bluetooth chip and/or wifi chip, adopts the bluetooth chip in this embodiment, and the bluetooth chip sends remote control terminals such as cell-phone or flat board, and remote control terminal received signal makes control command, and the remote control instrument detects.

As shown in fig. 4, a pogo pin connector 20 is arranged on one side of the surface of the housing 1 close to the raman probe 2, and the pogo pin connector 20 can connect and identify different sampling accessories according to the measurement requirements, for example, when the sampling lens needs to be extended to make an operator far away from the unknown dangerous object 6 to be measured, the corresponding sampling accessories can be connected through the pogo pin connector 20, so as to complete the sampling and signal collection of the object 6 to be measured.

As shown in fig. 1 and fig. 2, the top of casing 1 is provided with pilot lamp subassembly, pilot lamp subassembly in this embodiment adopts LED lamp plate 21 and leaded light 22 to realize the prompt facility that lights, LED lamp plate 21 sets up inside casing 1, the bottom of LED lamp plate 21 is connected on spectrum box 9, leaded light 22 sets up the top at LED lamp plate 21, after the switch on, pilot lamp subassembly's the light colour and the multiple states such as the start-up state, the wireless connection state, battery power state, emergency state that can the instruction instrument of scintillation change, for example: the blue indicator instrument works normally, the green indicator battery is normal, the yellow indicator battery is insufficient, and the red indicator laser is automatically cut off.

As shown in fig. 1, a rechargeable battery 23 is detachably mounted at one end of the housing 1 located at the holding portion 8 (refer to fig. 5), and the rechargeable battery 23 in this embodiment is a 3.5Ah rechargeable lithium battery; the end portion of the one end close to the rechargeable battery 23 in the shell 1 is provided with a charging interface 24, the charging interface 24 adopts a Type-c adapter interface, and a Type-c dustproof plug 25 is arranged in the charging interface 24.

The working principle of the utility model is as follows:

when the Raman spectrometer works, an operator starts up the Raman spectrometer after pressing the power main switch 26, turns on the laser 3 after pressing the laser excitation switch 27, and pushes the Raman probe 2 to the surface of the object to be detected 6, at the moment, monochromatic laser emitted by the laser 3 is converged to the surface of the object to be detected 6 through the dichroic mirror 11 and the focusing lens 10 to generate Raman scattering, scattered light forms a Raman spectrum after being processed by the optical assembly 4, and the detection result is obtained by analyzing the spectrum to complete detection; in the measuring process, the laser cutting-off protection device 5 can detect the existence of a human body in the detection range of the laser cutting-off protection device, and when the human body is detected, the laser cutting-off protection device 5 controls the laser 3 to be closed, so that the laser is prevented from damaging the human body; when the object to be measured 6 is an unknown dangerous object, after an instrument is placed by an operator, the remote control terminal can be connected through a wireless communication device inside the instrument, and the instrument is controlled outside the safe distance.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that modifications and embellishments within the scope of the present disclosure may be made by those skilled in the art without departing from the principles of the present disclosure.

Claims

1. A remote miniature Raman spectrometer with an automatic protection function is characterized in that: comprises that

The shell (1), the shell (1) can be held by a single hand, and a cavity is formed inside the shell (1);

the Raman probe (2) is arranged on one side of the shell (1), and the surface of the Raman probe (2) is attached to the surface of an object to be detected (6);

a laser (3), the laser (3) being disposed within the housing (1);

and also comprises

The optical component (4) is used for spectral analysis, the laser cut-off protection device (5) is used for detecting a human body, and the wireless communication device is used for remotely controlling the spectrometer, wherein the optical component (4), the laser cut-off protection device (5) and the wireless communication device are arranged in the shell (1).

2. The remote micro-raman spectrometer with automatic protection function according to claim 1, characterized in that: the wireless communication device is a Bluetooth chip and/or a wifi chip arranged in the shell (1).

3. The remote micro-raman spectrometer with automatic protection function according to claim 1 or 2, characterized in that: the laser cutting protection device (5) is an infrared sensing device arranged in the shell (1), and one end, close to the Raman probe (2), of the infrared sensing device extends out of the shell (1).

4. The remote micro-raman spectrometer with automatic protection function according to claim 1, characterized in that: the cavity of the shell (1) is internally detachably provided with a spectrum box (9), and the optical component (4) is arranged in the spectrum box (9).

5. The remote micro-raman spectrometer with automatic protection function according to claim 4, characterized in that: the optical component (4) comprises a dichroic mirror (11), a relay lens group (12) and a detection device (18) which are sequentially arranged on the spectrum box (9), the dichroic mirror (11) is arranged right above the laser (3) along the direction of the Raman probe (2) in an inclined manner by 45 degrees, and a focusing lens (10) is arranged in the Raman probe (2).

6. The remote micro-raman spectrometer with automatic protection function according to claim 5, characterized in that: an indicating lamp component is arranged at the top end of the shell (1).

7. The remote micro-raman spectrometer with automatic protection function according to claim 1, characterized in that: the shell (1) is of a gun type structure, and the shell (1) comprises a holding part (8) and a detection part (7).

8. The remote micro-raman spectrometer with automatic protection function according to claim 7, characterized in that: one end of the shell (1) located at the holding part (8) is detachably provided with a rechargeable battery (23), and a charging interface (24) is arranged at the end part of the shell (1) close to the rechargeable battery (23).

9. The remote micro-raman spectrometer with automatic protection function according to claim 8, characterized in that: the rechargeable battery (23) is a 3.5Ah rechargeable lithium battery, the charging interface (24) is a Type-c switching interface, and a Type-c dustproof plug (25) is arranged in the charging interface (24).

10. The remote micro-raman spectrometer with automatic protection function according to claim 1, characterized in that: and a pogo pin connector (20) is arranged on one side, close to the Raman probe (2), of the surface of the shell (1).