CN211235525U

CN211235525U - High-precision ultraviolet-visible spectrophotometer

Info

Publication number: CN211235525U
Application number: CN201922382474.8U
Authority: CN
Inventors: 董建波; 蒋芳
Original assignee: Qingdao Gongwei Radius Detection Co ltd
Current assignee: Qingdao Gongwei Radius Detection Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-08-11
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a high accuracy ultraviolet visible spectrophotometer, which comprises a housin, there is the instrument desk behind the casing top left end through the bolt fastening, the embedding of the preceding left side of instrument desk is fixed with the display screen, the display screen right side from top to bottom is fixed with concentration knob, absorbance potentiometer, selection knob and absorbance knob through the screw in proper order, the instrument desk right-hand member is equipped with the light source case, there is control switch through the screw fastening in the middle of the light source case right-hand member, instrument desk the place ahead is equipped with sensitivity knob, transmittance knob an and transmittance knob b from left to right in proper order, light source case the place ahead is equipped with the wavelength knob, the wavelength knob suit is on the casing, the wavelength knob outside is equipped with the calibrated scale, the calibrated scale embedding is fixed on the casing, the casing right-hand member is; the high-precision ultraviolet-visible spectrophotometer has the advantages of reasonable design, simple structure, high wavelength precision, accurate reading number and high regulation precision.

Description

High-precision ultraviolet-visible spectrophotometer

Technical Field

The utility model relates to a spectrophotometry technical field specifically is a high accuracy ultraviolet visible spectrophotometer.

Background

An ultraviolet-visible spectrophotometer is an analyzer based on ultraviolet-visible spectrophotometry principle and utilizing the radiation absorption of substance molecules in the ultraviolet-visible spectrum region to analyze, which mainly comprises a light source, a monochromator, an absorption cell, a detector, a signal processor and other parts, wherein the light source has the function of providing stable continuous spectrum with sufficient intensity, the ultraviolet region usually uses a hydrogen lamp or a deuterium lamp, the visible region usually uses a tungsten lamp or a halogen tungsten lamp, the monochromator has the function of decomposing composite light emitted by the light source and separating monochromatic light with required wavelength from the composite light, the dispersing element has two types of prisms and gratings, a glass absorption cell is used for measuring the visible region, a quartz absorption cell is used for measuring the ultraviolet region, the detector has the function of detecting the intensity of transmitted light through a photoelectric conversion element and converting optical signals into electric signals, the photoelectric conversion element has a photoelectric tube, a photomultiplier and a photodiode array detector, there are several methods of classifying spectrophotometers: the spectrophotometer can be divided into a single beam spectrophotometer and a double beam spectrophotometer according to an optical path system; the method can be divided into single-wavelength and dual-wavelength spectrophotometers according to the measuring mode; the detection method according to the drawing spectrogram is divided into spectral scanning detection and diode array full-spectrum detection.

When a spectrophotometer is used for testing a sample, an internal optical path structure is required to be closed, no stray light can enter, a sample cell is used for placing a sample and a reference part, the sample cell needs to be opened and closed frequently, and light leakage cannot occur in a closed state, so that the requirement of the spectrophotometer on the sealing performance of the sample cell is high, and in the daily use process, the precision of an instrument is reduced due to humidity caused by humidity inside equipment.

The utility model discloses a solve above-mentioned problem, provide a high accuracy ultraviolet visible spectrophotometer, can take the sample of surface of water edge optional position in to the middle zone through the adjustment davit.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high accuracy ultraviolet visible spectrophotometer has reasonable in design, simple structure, wavelength precision height, reads the digit accurate, adjusts the high advantage of precision, has solved the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a high-precision ultraviolet visible spectrophotometer comprises a shell, wherein an instrument desk is fixed at the rear of the left end of the top of the shell through a bolt, a display screen is fixed in the left side of the front of the instrument desk in an embedded mode, a concentration knob, an absorbance potentiometer, a selection knob and an absorbance knob are sequentially fixed on the right side of the display screen from top to bottom through screws, a light source box is arranged at the right end of the instrument desk, a control switch is fixed in the middle of the right end of the light source box through screws, a sensitivity knob, a transmittance knob a and a transmittance knob b are sequentially arranged in front of the instrument desk from left to right, the sensitivity knob, the transmittance knob a and the transmittance knob b are all fixed on the shell through screws, a wavelength knob is arranged in front of the light source box and sleeved on the shell, a dial is arranged on the outer side of the wavelength knob, the drier switch is sleeved at the position, close to the front, of the right end of the shell.

Preferably, the casing contains a dryer, and the dryer switch is electrically connected with the dryer.

Preferably, the wavelength knob is provided with a pointer.

Preferably, the scale unit of the dial is ten nanometers.

Preferably, the control switch is connected with a power supply through a cable.

Preferably, a sample chamber is arranged in the middle of the front end of the top of the shell, and the sample chamber is closed by a cover.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model relates to a high accuracy ultraviolet visible spectrophotometer contains the desicator through setting up containing the casing, desicator switch and desicator electric connection are convenient for carry out drying operation in to the casing, are favorable to reducing the influence of humidity to the inside instrument precision of casing, are equipped with the pointer through setting up the wavelength knob, are convenient for read the wavelength scale on the calibrated scale through the pointer, are favorable to improving the regulation precision.

2. The utility model relates to a high accuracy ultraviolet visible spectrophotometer is ten nanometers through the scale unit that sets up on the calibrated scale, is convenient for improve wavelength control precision, is convenient for read analysis result through the digital display through setting up the display screen to improve and read the precision, be convenient for reduce the light leak by the lid closure through setting up the sample room.

Drawings

Fig. 1 is a schematic view of the overall three-dimensional structure of a high-precision ultraviolet-visible spectrophotometer according to the present invention;

fig. 2 is a schematic view of the wavelength knob of the high-precision uv-vis spectrophotometer according to the present invention.

The figures are labeled as follows: 1. a housing; 2. a sensitivity knob; 3. a transmittance knob a; 4. a transmittance knob b; 5. a wavelength knob; 6. a dial scale; 7. a dryer switch; 8. a control switch; 9. a light source box; 10. an absorbance knob; 11. selecting a knob, 12 and an absorbance potentiometer; 13. a concentration knob; 14. display screen, 15 instrument desk.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1, a high-precision ultraviolet visible spectrophotometer comprises a housing 1, an instrument desk 15 is fixed at the rear of the left end of the top of the housing 1 through bolts, a sample chamber is arranged in the middle of the front end of the top of the housing 1 and is closed by a cover, light leakage is reduced by arranging the sample chamber and is closed by the cover, a display screen 14 is embedded and fixed at the left side of the front of the instrument desk 15, an analysis result is read through digital display by arranging the display screen 14, so that reading precision is improved, a concentration knob 13, an absorbance potentiometer 12, a selection knob 11 and an absorbance knob 10 are sequentially fixed at the right side of the display screen 14 from top to bottom through screws, a light source box 9 is arranged at the right end of the instrument desk 15, a control switch 8 is fixed at the middle of the right end of the light source box 9 through screws, the control switch 8 is connected with a power supply through cables, a sensitivity knob 2, a transmittance, the sensitivity knob 2, the transmittance knob a3, and the transmittance knob b4 are fixed to the housing 1 by screws.

Example 2:

referring to fig. 1 and 2, a high-precision ultraviolet-visible spectrophotometer includes a housing 1 and a light source box 9, a wavelength knob 5 is disposed in front of the light source box 9, a pointer is disposed on the wavelength knob 5, so that a wavelength scale on the scale 6 can be read by the pointer, which is beneficial to improving an adjustment precision, the wavelength knob 5 is sleeved on the housing 1, the scale 6 is disposed outside the wavelength knob 5, a scale unit of the scale 6 is ten nanometers, which is convenient to improve a wavelength control precision by disposing the scale unit on the scale 6 to be ten nanometers, the scale 6 is embedded and fixed on the housing 1, a dryer switch 7 is sleeved at a front position of the right end of the housing 1, the housing 1 contains a dryer, the dryer switch 7 is electrically connected with the dryer by disposing the housing 1 to contain the dryer, the drying operation is convenient to carry out in the casing 1, and the influence of humidity on the precision of the instrument in the casing 1 is favorably reduced.

The working principle is as follows: the utility model relates to a high accuracy ultraviolet visible spectrophotometer, during the use, press control switch 8 switch on, control switch 8 starts this equipment, display screen 14 lights and is in the stand-by no display state, adjust selection knob 11 to the ready position, open the lid of sample room, adjust absorbance knob 10 and make display screen 14 show the figure zero, put the cell that is equipped with the solution into the sample room, rotatory wavelength knob 5 makes required wavelength scale position, cover the sample room lid, place the solution cell in the light path, adjust transmittance knob a3 and make display screen 14 show the figure one hundred, adjust transmittance knob b4 and make display screen 14 show the figure zero, place the solution to be surveyed in the light path, then demonstrate the transmittance value of the solution to be surveyed on the display screen 14, when measuring absorbance, readjust display screen 14 and show the figure zero and one hundred, adjust selection knob 11 to the absorbance gear, adjusting the absorbance knob 10 makes the display screen 14 show the figure zero, the immigration is surveyed the solution and is placed in the light path, then show the figure on the display screen 14 and be the absorbance value, during the test concentration, readjust the display screen 14 and show the figure zero and one hundred, place the solution that has markd in the light path, adjust concentration knob 13 to the demarcation concentration, place the solution that is surveyed in the light path again, then display screen 14 shows the figure and is surveyed the solution concentration value, when this photometer used the end, press control switch 8, the power supply is cut off, close this photometer.

Having shown and described the basic principles and principal features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A high accuracy ultraviolet visible spectrophotometer which characterized in that: comprises a shell (1), an instrument desk (15) is fixed at the rear of the left end of the top of the shell (1) through a bolt, a display screen (14) is fixed in the left side of the front of the instrument desk (15) in an embedded mode, a concentration knob (13), an absorbance potentiometer (12), a selection knob (11) and an absorbance knob (10) are sequentially fixed on the right side of the display screen (14) from top to bottom through screws, a light source box (9) is arranged at the right end of the instrument desk (15), a control switch (8) is fixed in the middle of the right end of the light source box (9) through screws, a sensitivity knob (2), a transmittance knob a (3) and a transmittance knob b (4) are sequentially arranged in the front of the instrument desk (15) from left to right, the sensitivity knob (2), the transmittance knob a (3) and the transmittance knob b (4) are all fixed on the shell (1) through screws, and a front wavelength knob, wavelength knob (5) suit is on casing (1), wavelength knob (5) outside is equipped with calibrated scale (6), calibrated scale (6) embedding is fixed on casing (1), casing (1) right-hand member leans on preceding position to pass through the cover and is equipped with desicator switch (7).

2. A high accuracy uv-vis spectrophotometer according to claim 1, wherein: the dryer is contained in the shell (1), and the dryer switch (7) is electrically connected with the dryer.

3. A high accuracy uv-vis spectrophotometer according to claim 1, wherein: and a pointer is arranged on the wavelength knob (5).

4. A high accuracy uv-vis spectrophotometer according to claim 1, wherein: the scale unit of the dial (6) is ten nanometers.

5. A high accuracy uv-vis spectrophotometer according to claim 1, wherein: the control switch (8) is connected with a power supply through a cable.

6. A high accuracy uv-vis spectrophotometer according to claim 1, wherein: the middle of the front end of the top of the shell (1) is provided with a sample chamber, and the sample chamber is closed by a cover.