CN213482068U

CN213482068U - Sample table of fluorescence spectrometer with adjustable sample temperature

Info

Publication number: CN213482068U
Application number: CN202022505746.1U
Authority: CN
Inventors: 王一; 王阳; 宋家勇; 郭祥; 王继红; 李军丽; 杨晨; 丁召
Original assignee: Guizhou University
Current assignee: Guizhou University
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-06-18
Anticipated expiration: 2030-11-03

Abstract

The utility model discloses a fluorescence spectrum appearance sample platform with adjustable sample temperature, include: a base; the fixed rod is connected to the base; further comprising: the mounting groove is formed in the sample end of the fixing rod; a controller; the infrared lamp is arranged in the mounting groove and is electrically connected with the controller; and the adjusting knob is electrically connected with the controller. The problem that the prior art can only measure the semiconductor photoluminescence spectrum of the semiconductor at normal temperature and has narrow application range is solved.

Description

Sample table of fluorescence spectrometer with adjustable sample temperature

Technical Field

The utility model relates to a fluorescence spectrum appearance technical field especially relates to a fluorescence spectrum appearance sample platform with adjustable sample temperature.

Background

The fluorescence spectrometer is used for measuring the photoluminescence spectrum of semiconductor, need use the sample platform to centre gripping semiconductor sample among the fluorescence spectrometer, and current fluorescence spectrometer sample platform only includes base and dead lever, rotates the dead lever during the use and presss from both sides the sample between baffle and the dead lever tip on the base, and the function is comparatively simple, can only measure the semiconductor photoluminescence spectrum of semiconductor normal atmospheric temperature, and this makes the application range of fluorescence spectrometer narrower.

Disclosure of Invention

In order to solve the defects and shortcomings of the prior art, the utility model aims to provide a sample stage of a fluorescence spectrometer with adjustable sample temperature.

The technical scheme of the utility model is that: a fluorescence spectrometer sample platform with adjustable sample temperature, includes:

a base;

the fixed rod is connected to the base;

further comprising:

the mounting groove is formed in the sample end of the fixing rod;

a controller;

the infrared lamp is arranged in the mounting groove and is electrically connected with the controller;

and the adjusting knob is electrically connected with the controller.

Furthermore, the mounting groove is a three-dimensional paraboloid, a central axis of the three-dimensional paraboloid is overlapped with a central axis of the fixing rod, a reflecting layer is coated on the inner surface of the mounting groove, and the infrared lamp is fixedly connected to a focus of the three-dimensional paraboloid.

Further, still include:

the fixing groove is formed in the sample end of the fixing rod and is coaxial with the mounting groove, and the diameter of the fixing groove is larger than that of the mounting groove on the end face of the sample end;

the light-diffusing plate is made of transparent glass, the surface of the light-diffusing plate is frosted, the light-diffusing plate is matched with the fixing groove, and the light-diffusing plate is arranged on the fixing groove.

Further, still include:

the rubber cushion layer is arranged between the light scattering plate and the bottom surface of the fixed groove;

a rubber air bag;

one end of the communicating pipe is communicated with the mounting groove, and the other end of the communicating pipe is communicated with the rubber air bag;

and the air valve is communicated with the rubber air bag.

The utility model has the advantages that: compared with the prior art, the method has the advantages that,

1) the utility model discloses an infrared radiation that the infrared lamp sent shines on the semiconductor sample, makes the semiconductor sample heat up, sends control signal to the controller through adjust knob, and the controller is according to the output of control signal control infrared lamp to change the temperature on the semiconductor sample, it is wider to reach the temperature range that makes the photoluminescence spectrum of fluorescence spectrum appearance measurement semiconductor, makes the application range of fluorescence spectrum appearance wider;

2) the utility model discloses a set up the mounting groove as three-dimensional paraboloid, scribble the reflector layer on three-dimensional paraboloid, and install the infrared lamp on the focus of three-dimensional paraboloid, make the infrared light that shines on the semiconductor sample be the parallel light and more even;

3) the utility model can uniformly scatter the light emitted by the infrared lamp through the light-diffusing plate, thereby the infrared light received by the semiconductor sample is more uniform, and the temperature of the semiconductor is uniform;

4) the utility model discloses a rubber cushion makes the diffusion sheet airtight with the mounting groove opening, and the rethread rubber gasbag inhales rubber gasbag with the outside air under the effect of self elasticity power, closes the pneumatic valve after that, makes the increase of pressure in the mounting groove through hand rubber gasbag, opens the diffusion sheet through atmospheric pressure to the infrared lamp dismantlement change that will damage.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a partial view at C of FIG. 1;

fig. 3 is an exploded view of the present invention;

FIG. 4 is a partial view taken at D of FIG. 3;

fig. 5 is a front view of the fixing lever of the present invention;

fig. 6 is a cross-sectional view taken along line a-a in fig. 5.

FIG. 7 is a partial view taken at B of FIG. 6;

fig. 8 is a circuit connection block diagram of the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

example 1 was carried out: referring to fig. 1 to 8, a sample stage of a fluorescence spectrometer with adjustable sample temperature in this embodiment includes: a base 1; the fixed rod 2 is connected to the base 1; further comprising: the mounting groove 2-1 is formed in the sample end of the fixing rod 2; a controller 4; the infrared lamp 2-2, the infrared lamp 2-2 is arranged in the mounting groove 2-1, and the infrared lamp 2-2 is connected with the controller 4 through a lead; and the adjusting knob 5 is connected with the controller 4 through a wire. The controller 4 here may be a PLC, Arduino or raspberry pi like control component with peripheral circuitry. Since the ambient temperature in the laboratory is stable, the relationship between the sample temperature and the output power of the infrared lamp 2-2 can be measured in advance, and then the sample temperature can be determined by detecting the output power of the infrared lamp 2-2.

Furthermore, the mounting groove 2-1 is a three-dimensional paraboloid, the central axis of the three-dimensional paraboloid is overlapped with the central axis of the fixing rod 2, the inner surface of the mounting groove 2-1 is coated with a reflecting layer, and the infrared lamp 2-2 is connected to the focus of the three-dimensional paraboloid through a lamp holder.

Further, still include: the fixing groove 2-6 is formed in the sample end of the fixing rod 2, the fixing groove 2-6 is coaxial with the mounting groove 2-1, and the diameter of the fixing groove 2-6 is larger than that of the mounting groove 2-1 on the end face of the sample end; the light-diffusing plate 2-3 is made of transparent glass, the surface of the light-diffusing plate 2-3 is frosted, the light-diffusing plate 2-3 is matched with the fixing groove 2-6, and the light-diffusing plate 2-3 is arranged on the fixing groove 2-6.

Further, still include: the rubber cushion layer 2-4 is arranged between the light diffusion plate 2-3 and the bottom surface of the fixing groove 2-6; a rubber air bag 3; one end of the communicating pipe 2-5 is communicated with the mounting groove 2-1, and the other end of the communicating pipe 2-5 is communicated with the rubber air bag 3; an air valve 3-1, wherein the air valve 3-1 is communicated with the rubber air bag 3.

The utility model has the advantages that:

1) the utility model discloses an infrared radiation that infrared lamp 2-2 sent shines on the semiconductor sample, makes the semiconductor sample heat up, sends control signal to controller 4 through adjust knob 5, and controller 4 controls the output of infrared lamp 2-2 according to control signal to change the temperature on the semiconductor sample, it is wider to reach the temperature range that makes the photoluminescence spectrum of fluorescence spectrum appearance measurement semiconductor, makes the application range of fluorescence spectrum appearance wider;

2) the utility model sets the mounting groove 2-1 as a three-dimensional paraboloid, the three-dimensional paraboloid is coated with a reflecting layer, and the infrared lamp 2-2 is mounted on the focus of the three-dimensional paraboloid, so that the infrared light irradiated on the semiconductor sample is parallel light and is more uniform;

3) the utility model can uniformly scatter the light emitted by the infrared lamp 2-2 through the light-diffusing plate 2-3, so that the infrared light received by the semiconductor sample is more uniform, and the temperature of the semiconductor is uniform;

4) the utility model discloses a rubber cushion 2-4 makes the scattered light board 2-3 airtight with mounting groove 2-1 opening, and rethread rubber gasbag 3 inhales the outside air into rubber gasbag 3 under the effect of self elasticity power, then closes pneumatic valve 3-1, makes the interior pressure increase of mounting groove 2-1 through hand rubber gasbag 3, opens scattered light board 2-3 through atmospheric pressure to dismantle the change with infrared lamp 2-2 that damages.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A fluorescence spectrometer sample platform with adjustable sample temperature, includes:

a base (1);

the fixing rod (2), the said fixing rod (2) is connected to base (1);

it is characterized by also comprising:

the mounting groove (2-1), the mounting groove (2-1) is arranged at the sample end of the fixing rod (2);

a controller (4);

the infrared lamp (2-2), the infrared lamp (2-2) is arranged in the mounting groove (2-1), and the infrared lamp (2-2) is electrically connected with the controller (4);

the adjusting knob (5), the adjusting knob (5) is electrically connected with the controller (4).

2. The sample stage of the fluorescence spectrometer with adjustable sample temperature according to claim 1, wherein the mounting groove (2-1) is a three-dimensional paraboloid, a central axis of the three-dimensional paraboloid coincides with a central axis of the fixing rod (2), a reflective layer is coated on an inner surface of the mounting groove (2-1), and the infrared lamp (2-2) is fixedly connected to a focus of the three-dimensional paraboloid.

3. The sample stage of the fluorescence spectrometer with adjustable sample temperature of claim 2, further comprising:

the fixing groove (2-6) is formed in the sample end of the fixing rod (2), the fixing groove (2-6) is coaxial with the mounting groove (2-1), and the diameter of the fixing groove (2-6) is larger than that of the mounting groove (2-1) on the end face of the sample end;

the light-diffusing plate (2-3) is made of transparent glass, the surface of the light-diffusing plate (2-3) is frosted, the light-diffusing plate (2-3) is matched with the fixing groove (2-6), and the light-diffusing plate (2-3) is arranged on the fixing groove (2-6).

4. The sample stage of the fluorescence spectrometer with adjustable sample temperature of claim 3, further comprising:

the rubber cushion layer (2-4), the rubber cushion layer (2-4) is arranged between the light-diffusing plate (2-3) and the bottom surface of the fixing groove (2-6);

a rubber bladder (3);

one end of the communicating pipe (2-5) is communicated with the mounting groove (2-1), and the other end of the communicating pipe (2-5) is communicated with the rubber air bag (3);

the air valve (3-1), the air valve (3-1) is communicated with the rubber air bag (3).