Dynamic noise reduction device of micro laser signal amplification equipment

Abstract

The utility model discloses a dynamic noise reduction device of micro laser signal amplification equipment, which comprises a shell, two signal interfaces, a filter, a high magnification amplifier, a common magnification amplifier and an adjustable magnification amplifier, and can effectively reduce noise interference in the amplification process, ensure the original characteristics of laser signals, and improve the noise reduction effect of the micro laser signal amplification equipment. The signal to noise ratio of signals is improved, the noise reduction intensity is adjusted in real time according to the environmental noise level and the signal characteristics, it is ensured that the noise reduction effect is optimal, different scenes and conditions can be adapted, the precision and stability of amplification screening are improved, errors caused by noise are reduced, and the signal quality is improved; the dynamic noise reduction device does not need a complex detection circuit to detect noise and does not need to design a circuit to eliminate noise for a specific frequency band.

Description

Technical Field

[0001] The utility model relates to the technical field of laser signal amplifying equipment, in particular to a dynamic noise reduction device for tiny laser signal amplifying equipment. Background Art

[0002] Protein is the carrier of life activities. Screening proteins helps us understand the biological processes and disease mechanisms in organisms, thereby helping to develop new treatments. Laser signal amplification equipment is used when screening proteins. The noise generated when the equipment is in use may affect the screening analysis. Current noise reduction devices include using low-noise equipment, signal modulation and filtering, and limiting the passband.

[0003] However, existing noise reduction devices may require more complex circuit design and complex algorithms, which increases the difficulty and cost of the equipment. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above-mentioned and / or existing problems in a dynamic noise reduction device of an existing micro laser signal amplification device, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a dynamic noise reduction device for a tiny laser signal amplifying device, which can effectively reduce noise interference in the amplification process, ensure the original characteristics of the laser signal, improve the signal-to-noise ratio of the signal, and adjust the noise reduction intensity in real time according to the ambient noise level and signal characteristics, thereby ensuring the best noise reduction effect. It can adapt to different scenarios and conditions, improve the accuracy and stability of amplification screening, reduce errors caused by noise, and improve the quality of the signal. The dynamic noise reduction device does not require a complex detection circuit to detect noise, nor does it require the design of a circuit to eliminate noise for a specific frequency band.

[0007] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] A dynamic noise reduction device for a tiny laser signal amplification device, comprising:

[0009] The shell has two signal interfaces on its side wall, one of which is a common interface and the other is a DNR interface. A sensor is installed on the shell side wall, and the sensor is a high-speed photodiode sensor used as a receiving end to collect initial laser signals. A high-power amplifier, a common-power amplifier and an adjustable-power amplifier are provided inside the shell. The shell side wall also has a bandpass filter for filtering the signal and removing clutter interference of other frequencies.

[0010] As a preferred solution of the dynamic noise reduction device of a tiny laser signal amplifying device described in the utility model, a plug is installed at the rear end of the shell, a fixing plate is installed on the side wall of the shell, a limiting hole is opened on the top of the fixing plate, and a guide plate is installed on the symmetrical side wall of the shell.

[0011] As a preferred solution of the dynamic noise reduction device of a tiny laser signal amplifying device described in the utility model, it also includes a fixing seat, a mounting plate is installed on the side wall of the fixing seat, a guide groove is opened on the inner wall of the fixing seat, and the guide plate extends into the guide groove.

[0012] As a preferred solution of the dynamic noise reduction device of a tiny laser signal amplifying device described in the utility model, a push plate is slidably connected inside the fixed seat, a spring is installed on the side wall of the push plate, and the other end of the spring is connected to the inner wall of the fixed seat.

[0013] As a preferred solution of the dynamic noise reduction device of a tiny laser signal amplifying device described in the utility model, a first protective groove is opened at the top end of the tail of the fixing seat corresponding to the position of the plug, and a first magnetic block is installed at the top end of the tail of the fixing seat.

[0014] As a preferred solution of the dynamic noise reduction device of a tiny laser signal amplifying device described in the utility model, a protective plate is hinged on the top end of the rear end of the fixing seat, a second protective groove is opened at the bottom of the protective plate corresponding to the first protective groove, and a second magnetic block is installed at the bottom of the protective plate corresponding to the first magnetic block.

[0015] As a preferred solution of the dynamic noise reduction device of a tiny laser signal amplifying device described in the utility model, it also includes a limit assembly, which includes a fixed frame installed on the side wall of the fixed seat, a slide plate slidably connected to the inside of the fixed frame, a second spring installed at the bottom of the slide plate, and a limit rod installed on the top of the slide plate and extending through the top of the fixed frame.

[0016] Compared with the existing technology: it can effectively reduce noise interference in the amplification process, ensure the original characteristics of the laser signal, improve the signal-to-noise ratio of the signal, and adjust the noise reduction intensity in real time according to the ambient noise level and signal characteristics, ensuring the best noise reduction effect. It can adapt to different scenarios and conditions, improve the accuracy and stability of amplification screening, reduce errors caused by noise, and improve the quality of the signal. This dynamic noise reduction device does not require a complex detection circuit to detect noise, nor does it require the design of a circuit to eliminate noise for a specific frequency band. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 This is the overall structure diagram of a dynamic noise reduction device for a tiny laser signal amplification device of the utility model;

[0019] Figure 2 This is a structural diagram of the housing of a dynamic noise reduction device for a tiny laser signal amplification device of the utility model;

[0020] Figure 3 This is a rear view of the housing of a dynamic noise reduction device of a tiny laser signal amplification device of the utility model;

[0021] Figure 4 This is a structural diagram of a mounting base for a dynamic noise reduction device of a tiny laser signal amplification device of the utility model;

[0022] Figure 5 This is a structural diagram of a limiting component of a dynamic noise reduction device of a tiny laser signal amplification device of the utility model. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0025] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] The utility model provides a dynamic noise reduction device for a tiny laser signal amplifying device, which can effectively reduce noise interference in the amplification process, ensure the original characteristics of the laser signal, improve the signal-to-noise ratio of the signal, and adjust the noise reduction intensity in real time according to the environmental noise level and signal characteristics, thereby ensuring the best noise reduction effect. The utility model can adapt to different scenes and conditions, improve the accuracy and stability of amplification screening, reduce errors caused by noise, and improve the quality of the signal. The dynamic noise reduction device does not require a complex detection circuit to detect noise, nor does it require a circuit to be designed to eliminate noise for a specific frequency band.

[0027] Figure 1-5 The following is a schematic diagram showing a structure of a dynamic noise reduction device for a tiny laser signal amplification device according to the present invention. Figure 1-Figure 5 In this embodiment, a dynamic noise reduction device of a tiny laser signal amplifying device includes a housing 100 , a fixing seat 200 and a limiting assembly 300 .

[0028] The side wall of the housing 100 has two signal interfaces 110, one of which is a common interface and the other is a DNR interface. A sensor 120 is installed on the side wall of the housing 100. The sensor 120 is a high-speed photodiode sensor, which is used as a receiving end to collect the initial laser signal. The housing 100 has a high-power amplifier, a common power amplifier and an adjustable power amplifier. The side wall of the housing 100 also has a bandpass filter 130, which is used to filter the signal and remove clutter interference of other frequencies. The working principle of this device is as follows:

[0029] 1. A broadband wavelength high-speed photodiode sensor 120 is used as the receiving end. The received initial laser signal contains complex component signals such as bias current and ambient light interference;

[0030] 2. Using low bias current and high internal resistance amplifier as the core to form the first-stage amplifier circuit module, the nA-level current signal is converted into the mV-level voltage signal, and the first-stage amplifier circuit contains the interference component processing part for primary processing;

[0031] 3. The converted mV voltage signal is amplified to the 100mV level of the shell through a reserved 10-20 times ordinary magnification amplifier. If the signal is strong, the secondary amplification can reduce the magnification as a voltage follower;

[0032] 4. The signal of the shell 100mV level containing components of various frequency bands is filtered through the bandpass filter 130 with a cutoff frequency of 30K-sensor 120K. The filtered signal not only removes the interference of other frequencies, but also removes the DC component;

[0033] 5. The filtered signal is amplified by a maximum of 20 times the adjustable three-stage output to produce the required 500mV-3V signal.

[0034] A mounting plate 210 is installed on the side wall of the fixing seat 200, a plug 150 is installed on the rear end of the shell 100, a fixing plate 160 is installed on the side wall of the shell 100, a limiting hole 170 is provided on the top of the fixing plate 160, a guide plate 180 is installed on the symmetrical side wall of the shell 100, a guide groove 220 is provided on the inner wall of the fixing seat 200, the guide plate 180 extends into the inside of the guide groove 220, a push plate 230 is slidably connected inside the fixing seat 200, a spring 240 is installed on the side wall of the push plate 230, the other end of the spring 240 is connected to the inner wall of the fixing seat 200, a first protective groove 250 is provided at the top end of the fixing seat 200 corresponding to the plug 150, a first magnetic suction block 260 is installed on the top end of the fixing seat 200, a protective plate 270 is hinged on the top end of the fixing seat 200, and the bottom of the protective plate 270 A second protective groove 280 is opened at a position corresponding to the first protective groove 250, and a second magnetic block 290 is installed at a position corresponding to the first magnetic block 260 at the bottom of the protective plate 270. During installation, first, the screws are passed through the mounting plate 210 and fixed into the ground, the fixing base 200 is fixed to the ground, and the shell 100 is pushed into the fixing base 200. After the plug 150 passes through the first protective groove 250 and is connected to the shell 100, the protective plate 270 is pulled downward until the bottom of the protective plate 270 abuts against the top of the fixing base 200, and the plug 150 is located in the first protective groove 250 and the second protective groove 280. The second magnetic block 290 is adsorbed on the first magnetic block 260, and the protective plate 270 protects the plug 150 to prevent the plug 150 from being accidentally touched during use and causing it to loosen.

[0035] The limiting assembly 300 includes a fixing frame 310 installed on the side wall of the fixing seat 200, a slide plate 320 slidably connected to the inside of the fixing frame 310, a second spring 330 installed at the bottom of the slide plate 320, and a limiting rod 340 installed on the top of the slide plate 320 and extending through the top of the fixing frame 310. By pulling the slide plate 320 to move downward and squeeze the second spring 330, the limiting rod 340 slides with the slide plate 320 and is retracted into the fixing frame 310, pushing the housing 100 to slide into the fixing seat 200, and the housing 100 pushes the push plate 230 to slide into the fixing seat 200. The second spring 330 rebounds and pushes the slide plate 320 and the limit rod 340 to move upward. The limit rod 340 passes through the limit hole 170 to limit and fix the shell 100 in the fixed seat 200. When disassembly is required, the slide plate 320 is pulled to drive the limit rod 340 to be retracted into the fixed frame 310. The spring 240 rebounds and pushes the push plate 230 and the shell 100 to extend out from the opening of the fixed seat 200.

[0036] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A dynamic noise reduction device for a tiny laser signal amplification device, characterized in that: include: A shell (100), wherein the side wall of the shell (100) has two signal interfaces (110), wherein one of the signal interfaces (110) is a common interface and the other of the signal interfaces (110) is a DNR interface. A sensor (120) is installed on the side wall of the shell (100), wherein the sensor (120) is a high-speed photodiode sensor and is used as a receiving end to collect an initial laser signal. A high-power amplifier, a common-power amplifier and an adjustable-power amplifier are provided inside the shell (100). The side wall of the shell (100) also has a bandpass filter (130) for filtering the signal and removing clutter interference of other frequencies.

2. The dynamic noise reduction device for a tiny laser signal amplification device according to claim 1, characterized in that: A plug (150) is installed at the rear end of the shell (100), a fixing plate (160) is installed on the side wall of the shell (100), a limiting hole (170) is provided on the top of the fixing plate (160), and a guide plate (180) is installed on the symmetrical side wall of the shell (100).

3. The dynamic noise reduction device for a tiny laser signal amplification device according to claim 2, characterized in that: It also comprises a fixing seat (200), a side wall of which is mounted a mounting plate (210), an inner wall of which is provided with a guide groove (220), and the guide plate (180) extends into the interior of the guide groove (220).

4. The dynamic noise reduction device for a tiny laser signal amplification device according to claim 3, characterized in that: A push plate (230) is slidably connected inside the fixed seat (200), a spring (240) is installed on the side wall of the push plate (230), and the other end of the spring (240) is connected to the inner wall of the fixed seat (200).

5. The dynamic noise reduction device for a tiny laser signal amplification device according to claim 4, characterized in that: A first protection groove (250) is provided at a position corresponding to the plug (150) at the top end of the rear portion of the fixing seat (200), and a first magnetic attraction block (260) is installed at the top end of the rear portion of the fixing seat (200).

6. The dynamic noise reduction device for a tiny laser signal amplification device according to claim 5, characterized in that: A protective plate (270) is hingedly connected to the top end of the rear portion of the fixing seat (200), a second protective groove (280) is provided at a position corresponding to the first protective groove (250) at the bottom of the protective plate (270), and a second magnetic block (290) is installed at a position corresponding to the first magnetic block (260) at the bottom of the protective plate (270).

7. The dynamic noise reduction device for a tiny laser signal amplification device according to claim 6, characterized in that: The invention also includes a limiting assembly (300), wherein the limiting assembly (300) includes a fixed frame (310) mounted on the side wall of the fixed seat (200), a slide plate (320) slidably connected to the inside of the fixed frame (310), a second spring (330) mounted on the bottom of the slide plate (320), and a limiting rod (340) mounted on the top of the slide plate (320) and extending through the top of the fixed frame (310).

Images