Extremely weak laser signal specific frequency amplification and screening device

Abstract

The utility model discloses an extremely weak laser signal specific frequency amplification and screening device which comprises a shell, fixing plates and a limiting assembly, the two fixing plates are symmetrically arranged on the side wall of the shell, a winding roller is rotatably connected between the two fixing plates, and a torsional spring is connected between the winding roller and the fixing plates. A limiting assembly is arranged on the side wall of a fixing plate, a wire is wound on a wire winding roller, when the wire needs to be used, the limiting assembly is pulled to be separated from the wire winding roller, the wire is pulled to drive the wire winding roller to rotate till the wire is stretched to the proper length, the wire winding roller is limited through the limiting assembly, and when the wire needs to be stored after being used, the limiting assembly and the wire winding roller are separated; and the torsion spring rebounds to drive the winding roller to rotate, the wire is wound and reset, and the situation that subsequent use is affected due to winding and knotting of the wire during storage is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of laser signals, in particular to a device for amplifying and screening a specific frequency of an extremely weak laser signal. 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. Screening proteins may require detectors, which can be used as devices to amplify and screen light signals, converting light signals into electrical signals to assist in screening and analysis.

[0003] Most of the existing laser signal amplifiers have multiple connectors connected to their tails. The other end of the wire of the connector has a plug. However, during the storage process, the wires are not organized, which easily causes the wires to get tangled and knotted, affecting subsequent use. 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 and / or existing problems in a device for amplifying and screening a specific frequency of an extremely weak laser signal, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a device for amplifying and screening a specific frequency of an extremely weak laser signal. The device comprises two fixed plates symmetrically arranged on the side wall of a shell, a winding roller is rotatably connected between the two fixed plates, a torsion spring is connected between the winding roller and the fixed plate, a limiting assembly is arranged on the side wall of the fixed plate, and the wire is wound around the winding roller. When it is needed, the limiting assembly is pulled to separate from the winding roller, and the winding roller is driven to rotate by pulling the wire until the wire is stretched to an appropriate length. The winding roller is limited by the limiting assembly. When it needs to be stored after use, the limiting assembly is separated from the winding roller, and the torsion spring rebounds to drive the winding roller to rotate, and the wire is wound back to its original position to prevent the subsequent use from being affected by the winding and knotting of the wire during storage.

[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 device for amplifying and screening a specific frequency of an extremely weak laser signal, comprising:

[0009] A housing, wherein a connector is connected to a side wall of the housing, and a wire is installed at a tail end of the connector;

[0010] Ear plates, the ear plates are two and symmetrically mounted on the side wall of the shell with the joint as the center, a winding roller is rotatably connected between the two ear plates, the wire is wound around the roller body of the winding roller, a torsion spring is arranged between the winding roller and the ear plates, one of the side walls of the ear plates is rotatably connected to a second knob, and the second knob is coaxially rotatably connected to the winding roller;

[0011] A limiting component is installed on one of the side walls of the ear plate and is used to limit the rotation direction of the second knob.

[0012] As a preferred solution of the device for amplifying and screening a very weak laser signal with a specific frequency described in the utility model, a circle of densely packed teeth is arranged on the outer wall of the second knob.

[0013] As a preferred solution of the extremely weak laser signal specific frequency amplification and screening device described in the utility model, the limiting assembly includes a fixed frame installed on the side wall of the ear plate, a slider slidably connected to the side wall of the fixed frame and a spring installed on the side wall of the slider, the other side wall of the slider is provided with a limiting groove, the inner wall of the limiting groove is provided with a circle of dense teeth, and the teeth are engaged with the outer wall of the second knob.

[0014] As a preferred solution of the extremely weak laser signal specific frequency amplification and screening device described in the utility model, two fixed plates are symmetrically installed on the top of the shell, and a positive and negative threaded rod is rotatably connected between the two fixed plates. One end of the positive and negative threaded rod extends out of the side wall of the fixed plate and is installed with a first knob, and a guide rod is installed between the two fixed plates.

[0015] As a preferred solution of the extremely weak laser signal specific frequency amplification and screening device described in the utility model, it also includes a splint, wherein the splints are two and symmetrically located between the two fixed plates, the side walls of the splints are provided with threaded holes, the positive and negative threaded rods rotate and pass through the threaded holes, the side walls of the splints are provided with guide holes, the guide rods pass through the guide holes, and the side walls of the splints are installed with anti-slip pads.

[0016] As a preferred solution of the device for amplifying and screening a very weak laser signal with a specific frequency described in the utility model, the side wall of the shell has two receivers, the side wall of the shell is equipped with a sensor, and the side wall of the shell is also equipped with a filter.

[0017] Compared with the prior art: two fixed plates are symmetrically arranged on the side wall of the shell, a winding roller is rotatably connected between the two fixed plates, a torsion spring is connected between the winding roller and the fixed plate, a limiting assembly is arranged on the side wall of the fixed plate, the wire is wound on the winding roller, when it is needed, the limiting assembly is pulled to separate from the winding roller, the wire is pulled to drive the winding roller to rotate until the wire is stretched to an appropriate length, the winding roller is limited by the limiting assembly, when it needs to be stored after use, the limiting assembly is separated from the winding roller, the torsion spring rebounds to drive the winding roller to rotate, and the wire is wound back to its original position, thereby preventing the subsequent use from being affected by the winding and knotting of the wire during storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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:

[0019] Figure 1 This is the overall structure diagram of a device for amplifying and screening a specific frequency of an extremely weak laser signal according to the utility model;

[0020] Figure 2 This is a shell structure diagram of a device for amplifying and screening a very weak laser signal with a specific frequency according to the utility model;

[0021] Figure 3 This is a structural diagram of a limiting component of a very weak laser signal specific frequency amplification and screening device of the utility model;

[0022] Figure 4 The utility model is a working flow chart of a device for amplifying and screening a specific frequency of an extremely weak laser signal. 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 an extremely weak laser signal specific frequency amplification and screening device. The device comprises two fixed plates symmetrically arranged on the side wall of a shell body, a winding roller is rotatably connected between the two fixed plates, a torsion spring is connected between the winding roller and the fixed plate, a limiting component is arranged on the side wall of the fixed plate, a wire is wound on the winding roller, when it is needed to be used, the limiting component is pulled to separate from the winding roller, the wire is pulled to drive the winding roller to rotate until the wire is stretched to a suitable length, the winding roller is limited by the limiting component, when it needs to be stored after use, the limiting component is separated from the winding roller, the torsion spring rebounds to drive the winding roller to rotate, the wire is wound and reset, and the subsequent use is prevented from being affected by the winding and knotting of the wire during storage.

[0027] Figure 1-4 The following is a schematic diagram showing a structure of an embodiment of a device for amplifying and screening a specific frequency of an extremely weak laser signal according to the present invention. Figure 1-Figure 4 In this embodiment, a very weak laser signal specific frequency amplification and screening device includes a housing 100, an ear plate 200, a limit assembly 300 and a clamping plate 400.

[0028] The side wall of the housing 100 is connected to a connector 110, a wire is installed at the tail end of the connector 110, two fixing plates 120 are symmetrically installed on the top of the housing 100, a positive and negative threaded rod 130 is rotatably connected between the two fixing plates 120, one end of the positive and negative threaded rod 130 extends out of the side wall of the fixing plate 120 and is installed with a first knob 140, a guide rod 150 is installed between the two fixing plates 120, the side wall of the housing 100 has two receivers 160, a sensor 170 is installed on the side wall of the housing 100, and a filter 180 is also installed on the side wall of the housing 100. What is not shown in the figure is that the housing 100 has a high-power amplifier, a normal-power amplifier and an adjustable-power amplifier. The working process of this device is as follows:

[0029] 1. A broadband wavelength high-speed photodiode sensor 170 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, the first-stage amplifier circuit module is formed to convert nA-level current signals into mV-level voltage signals, and the first-stage amplifier circuit contains an interference component processing part for primary processing;

[0031] 3. The converted mV voltage signal is amplified to 100mV level 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 100mV level signal containing components of various frequency bands is filtered through a bandpass filter 180 with a cutoff frequency of 30K-sensor fixing plate 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] The ear plates 200 are two and symmetrically installed on the side walls of the shell 100 with the joint 110 as the center. A winding roller 210 is rotatably connected between the two ear plates 200, and the wire is wound around the roller body of the winding roller 210. A torsion spring is arranged between the winding roller 210 and the ear plate 200. A second knob 220 is rotatably connected to the side wall of one of the ear plates 200. The second knob 220 and the winding roller 210 are coaxially rotatably connected. A circle of dense teeth is arranged on the outer wall of the second knob 220. The winding roller 210 is rotated by pulling the guide rod 150 with the wire. The torsion spring is squeezed when the winding roller 210 rotates. When use is completed, the guide rod 150 is released, and the torsion spring rebounds to drive the winding roller 210 to rotate, and the wire is wound around the winding roller 210.

[0035] The limit assembly 300 is installed on the side wall of one of the ear plates 200, and is used to limit the rotation direction of the second knob 220. The limit assembly 300 includes a fixed frame 310 installed on the side wall of the ear plate 200, a slider 320 slidably connected to the side wall of the fixed frame 310, and a spring 330 installed on the side wall of the slider 320. A limit groove 340 is provided on the other side wall of the slider 320. A circle of dense teeth is provided on the inner wall of the limit groove 340, and the teeth cooperate with the outer wall of the second knob 220. When in use, the slider 320 is pulled to slide into the fixed frame 310 and squeeze the spring 330, and the second knob 220 is rotated from the inside of the limit groove 340. Separation, at this time, pull the guide rod 150 to drive the winding roller 210 to rotate, until the guide rod 150 is stretched to an appropriate length, release the slider 320, the spring 330 rebounds and pushes the slider 320 to move in the direction of the second knob 220, the second knob 220 is embedded in the limiting groove 340, the outer wall teeth of the second knob 220 are engaged with the inner wall teeth of the limiting groove 340, and the second knob 220 and the winding roller 210 are limited. When use is completed, pull the slider 320 to drive the second knob 220 to separate from the limiting groove 340, the torsion spring rebounds and pushes the second knob 220 and the winding roller 210 to rotate and reset, and the wire winding is reset.

[0036] There are two clamps 400 symmetrically located between the two fixed plates 120, a threaded hole 410 is opened on the side wall of the clamp 400, the positive and negative threaded rod 130 rotates and passes through the threaded hole 410, a guide hole 420 is opened on the side wall of the clamp 400, the guide rod 150 passes through the guide hole 420, and an anti-slip pad 430 is installed on the side wall of the clamp 400. By moving the shell 100 to a suitable position, it is ensured that there is a protrusion between the two clamps 400, and the first knob 140 is rotated to drive the positive and negative threaded rod 130 to rotate, and the screw structure is used to push the two clamps 400 close to each other and clamp the protrusion, so as to facilitate the hanging installation of the shell 100.

[0037] 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 device for amplifying and screening a specific frequency of an extremely weak laser signal, characterized in that: include: A housing (100), wherein a connector (110) is connected to a side wall of the housing (100), and a wire is installed at a rear end of the connector (110); An ear plate (200), wherein the ear plates (200) are two and symmetrically mounted on the side wall of the housing (100) with the joint (110) as the center, a winding roller (210) is rotatably connected between the two ear plates (200), the wire is wound around the roller body of the winding roller (210), a torsion spring is arranged between the winding roller (210) and the ear plate (200), a second knob (220) is rotatably connected to the side wall of one of the ear plates (200), and the second knob (220) and the winding roller (210) are coaxially rotatably connected; A limiting assembly (300) is installed on the side wall of one of the ear plates (200) and is used to limit the rotation direction of the second knob (220).

2. The device for amplifying and screening a specific frequency of an extremely weak laser signal according to claim 1, characterized in that: The outer wall of the second knob (220) is provided with a circle of densely packed teeth.

3. The device for amplifying and screening a specific frequency of an extremely weak laser signal according to claim 2, characterized in that: The limiting assembly (300) comprises a fixed frame (310) mounted on the side wall of the ear plate (200), a slider (320) slidably connected to the side wall of the fixed frame (310), and a spring (330) mounted on the side wall of the slider (320); a limiting groove (340) is provided on the other side wall of the slider (320); a circle of dense tooth grooves is provided on the inner wall of the limiting groove (340); and the tooth grooves are engaged with the outer wall of the second knob (220).

4. The device for amplifying and screening a specific frequency of an extremely weak laser signal according to claim 3, characterized in that: Two fixing plates (120) are symmetrically mounted on the top of the housing (100); a positive and negative threaded rod (130) is rotatably connected between the two fixing plates (120); one end of the positive and negative threaded rod (130) extends out of the side wall of the fixing plate (120) and is mounted with a first knob (140); and a guide rod (150) is mounted between the two fixing plates (120).

5. The device for amplifying and screening a specific frequency of an extremely weak laser signal according to claim 4, characterized in that: It also includes a splint (400), which is two and symmetrically located between the two fixing plates (120), a threaded hole (410) is opened on the side wall of the splint (400), the positive and negative threaded rod (130) rotates through the threaded hole (410), a guide hole (420) is opened on the side wall of the splint (400), the guide rod (150) passes through the guide hole (420), and an anti-slip pad (430) is installed on the side wall of the splint (400).

6. The device for amplifying and screening a specific frequency of an extremely weak laser signal according to claim 5, characterized in that: The side wall of the housing (100) is provided with two receivers (160), a sensor (170) is installed on the side wall of the housing (100), and a filter (180) is also installed on the side wall of the housing (100).

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