CN211402134U - Auxiliary device for experiment of terahertz spectrum detection equipment - Google Patents
Auxiliary device for experiment of terahertz spectrum detection equipment Download PDFInfo
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- CN211402134U CN211402134U CN201921556821.8U CN201921556821U CN211402134U CN 211402134 U CN211402134 U CN 211402134U CN 201921556821 U CN201921556821 U CN 201921556821U CN 211402134 U CN211402134 U CN 211402134U
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Abstract
The utility model discloses an auxiliary device for terahertz spectrum detection equipment experiment, which comprises an experiment chamber, a laser transmitter, a heater, a refrigerator, an optical device, an objective table, a chamber door, an optical fiber, a terahertz near field probe, a touch screen, a control circuit board, a humidity sensor, a temperature sensor, a fan, a gas dryer, an air valve, an air dryer, an inert gas tank, an air pump and a plastic pipe, wherein the laser transmitter, the optical device, the objective table, the terahertz near field probe, the humidity sensor and the temperature sensor are all arranged in the experiment chamber, an experiment chamber with variable environment is provided for the terahertz spectrum detection equipment, liquid crystal glass is spliced into the experiment chamber, whether the liquid crystal glass is transparent or not is adjusted to control the illumination in the experiment chamber, the influence of fluorescence on the experiment is eliminated, the influence of external noise on the experiment is reduced, dry air or other inert gases are filled into the experiment chamber to change the humidity in the chamber, the temperature in the bin is adjusted through the heater and the refrigerator, so that the experimental bin reaches the environment where the terahertz spectrum detection equipment can perform experiments.
Description
Technical Field
The utility model relates to a terahertz spectrum detection area especially relates to an auxiliary device that is used for terahertz spectrum check out test set to now.
Background
Terahertz waves are electromagnetic waves between microwaves and infrared waves, the frequency of the terahertz waves is in the range of 0.1THz-10THz, and the terahertz waves have the characteristics of low energy, instantaneity, sensitivity, high signal-to-noise ratio and the like, so that the terahertz waves have important application in the aspect of substance detection. When the spectrometer collects the sample spectrum, the data measured by the terahertz spectrometer is easily interfered by the external environment, such as irrelevant noise, temperature, humidity, fluorescence background and the like. Particularly, the environmental temperature of the experiment needs to be adjusted to about 20 ℃, and the humidity needs to be adjusted to be below 5 percent, so that the normal experiment test can be carried out. Therefore, an environment for performing experiments needs to be provided for the terahertz spectrum detection device.
In the prior art, the environment of a laboratory is usually adjusted, and the experimental environment is provided for the terahertz spectrum detection device by means of noise, temperature, humidity, illumination and the like, but the laboratory environment is complex, indoor air is communicated with the outside, so that indoor temperature and humidity are not easy to control, the influence of background light is also caused, and the experimental accuracy is seriously influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims to provide an auxiliary device for terahertz spectrum check out test set experiments now, for terahertz spectrum check out test set provides a changeable experiment storehouse of environment now, adopt liquid crystal glass splice into experiment storehouse, adjust whether liquid crystal glass is transparent or not to control the illumination in the experiment storehouse, eliminate the influence of fluorescence to the experiment, and reduce the influence of external noise to the experiment, fill into the humidity that changes the storehouse in dry air or other inert gas in the storehouse of experiment, adjust the temperature in the storehouse through heater and refrigerator, make the experiment storehouse reach the environment that terahertz spectrum check out test set can carry out the experiment.
In order to achieve the above object, the utility model provides a pair of an auxiliary device for terahertz spectrum check out test is realized like this:
an auxiliary device for a terahertz spectrum detection device experiment comprises an experiment chamber, a laser emitter, a heater, a refrigerator, an optical device, an objective table, a chamber door, an optical fiber, a terahertz near-field probe, a touch screen, a control circuit board, a humidity sensor, a temperature sensor, a fan, a gas dryer, an air valve, an air dryer, an inert gas tank, an air pump and a plastic pipe, wherein the laser emitter, the optical device, the objective table, the terahertz near-field probe, the humidity sensor and the temperature sensor are all arranged in the experiment chamber, the laser emitter and the terahertz near-field probe are arranged above the experiment chamber and are positioned on the same horizontal line, the objective table is arranged at the bottom in the experiment chamber and is used for placing an object to be detected, the chamber door is arranged at one side of the experiment chamber, an operator puts the object on the objective table in the experiment chamber through the chamber door, the humidity sensor and the temperature sensor are, the device is used for detecting the humidity and the temperature in the experiment bin respectively, the heater and the refrigerator are arranged at the outer side of the experiment bin and are tightly attached to the experiment bin, holes are formed at the contact positions of the experiment bin and the heater and the refrigerator, so that the gas blown out by the heater and the refrigerator can enter the experiment bin conveniently, the optical fiber penetrates through the experiment bin to be connected with the two ends of the terahertz near-field probe and the terahertz analyzer, the information received by the terahertz near-field probe is transmitted to the terahertz analyzer for analysis, the terahertz analyzer returns the analysis result to a computer, an upper computer developed by the computer displays the analysis result, the touch screen and the control circuit board are arranged at the top end outside the experiment bin, the control circuit board controls the laser transmitter to send out a laser beam between 0.1THz and 10THz, the optical path of the laser beam is changed through the optical device, and part of the, the touch screen is used for displaying temperature and humidity information in the experiment bin and sending an instruction to the control circuit board through the touch screen so that the control circuit board can complete corresponding control, the fan, the gas dryer, the air valve, the air dryer, the inert gas tank, the air pump and the plastic tube are arranged outside the experiment bin, the air dryer and the inert gas tank are connected to the gas dryer in parallel, the air valve is arranged between the air dryer and the gas dryer and used for controlling gas in the air dryer to enter the gas dryer, the air pump is arranged between the inert gas tank and the gas dryer and used for pumping gas in the inert gas tank and inputting the gas into the gas dryer, the fan is arranged between the gas dryer and the experiment bin, the other plastic tube is arranged between the gas dryer and the experiment bin so that the gas in the gas dryer can flow into the experiment bin from the plastic tube, the air dried in the air dryer can be blown into the experiment bin by the fan, the fan is connected with the experiment bin, the fan is connected with the gas dryer, the gas dryer is connected with the air valve, the gas dryer is connected with the air pump, the air pump is connected with the inert gas tank, the air valve is connected with the air dryer by plastic pipes, and the plastic pipes between the fan and the experiment bin extend into the experiment bin.
The utility model discloses an experiment storehouse includes first liquid crystal glazing, the entrance to a cave, the silica gel seal groove, magnetism is from inhaling the door curtain, the gas pocket, noise proof glass pastes, adopt six the same first liquid crystal glazing to make up into experiment storehouse, noise proof glass pastes at every first liquid crystal glazing surface, a noise in the experiment storehouse is used for reducing, wherein be equipped with the entrance to a cave in the middle of the first liquid crystal glazing, pass in and out the passageway in experiment storehouse as the object to be measured, be equipped with magnetism on the entrance to a cave from inhaling the door curtain, a more outside air inflow experiment storehouse when being used for reducing operating personnel and placing the object to be measured, the entrance to a cave next door is equipped with the silica gel seal groove, avoid appearing the space between door and the experiment storehouse, prevent that this department has outside air inflow, experiment storehouse one side right side below is equipped with the gas pocket, prevent that the fan from blowing.
The utility model discloses a door includes second liquid crystal glazing, hinge, door handle, lock, adopts the hinge to fix second liquid crystal glazing on the first liquid crystal glazing that experiment storehouse was equipped with entrance to a cave one side, and second liquid crystal glazing the right still is equipped with door handle and lock, and the pulling door handle drives the motion of second liquid crystal glazing, accomplishes opening and shutting of door, and the lock is used for locking the door on first liquid crystal glazing.
The utility model discloses a second liquid crystal glazing surface is pasted and is pasted with the noise control sound glass that first liquid crystal glazing surface is the same, and second liquid crystal glazing internal surface is equipped with the silica gel sealing strip, and when the door was closed, the last silica gel sealing strip embedding silica gel seal groove of second liquid crystal glazing blocked the outside air from the door and flows into in the experiment storehouse.
The optical device of the utility model comprises a spectroscope, a reflective mirror, a crankshaft paraboloid mirror and a beam combiner, wherein four same crankshaft paraboloid mirrors are arranged in a rectangle around an object to be measured, the beam splitter and a laser transmitter are arranged at an angle of 45 degrees, a laser beam emitted by the laser transmitter is divided into two beams of laser after passing through the beam splitter, one beam of laser enters the beam combiner after being reflected for three times by three same light emitting mirrors, the other beam of laser irradiates the crankshaft paraboloid mirror at the upper left corner, the crankshaft paraboloid mirror reflects to the crankshaft paraboloid mirror at the lower left corner, the crankshaft paraboloid mirror at the lower left corner reflects the received laser beam to the object to be measured, the laser beam enters the crankshaft paraboloid mirror at the lower right corner after passing through the object to be measured, the crankshaft paraboloid mirror at the lower right corner reflects the received light to the crankshaft paraboloid mirror at the upper right corner, the beam enters the beam combiner after being reflected by the crankshaft paraboloid mirror at the upper right corner, the terahertz near-field probe transmits the detected information to a terahertz analyzer through an optical fiber for analysis.
The utility model discloses a touch screen interface is equipped with temperature setting button, current temperature display window, set temperature display window, humidity setting window, current humidity display window, set humidity display window, select keyboard, start button, stop button, air drying button, inert gas drying button, door opening button, door closing button, temperature setting button is used for setting the preset temperature in the experimental bin, and through selecting the temperature value that has set on the keyboard, press and confirm, namely display the temperature that has set at the temperature display window that sets for, current temperature value in the experimental bin is displayed at the current temperature display window, humidity setting button is used for setting the preset humidity in the experimental bin, and through selecting the humidity value that has set on the keyboard, press and confirm, namely display the humidity that has set at the humidity display window that sets for, current humidity value in the experimental bin is displayed at the current humidity display window, when a start button is pressed down, the control circuit board controls the laser emitter to start working, when a stop button is pressed down, the control circuit board controls the laser emitter to stop working, when an air drying button is pressed down, the control circuit board controls the gas dryer, the air valve and the air dryer to work, the air pump is controlled to be closed, so that the air dryer sends the dried gas into the gas dryer for secondary drying and then inputs the gas into the experiment bin from the plastic pipe, when an inert gas drying button is pressed down, the control circuit board controls the gas dryer and the air pump to be opened and work, the air valve and the air dryer are controlled to be closed, so that the air pump pumps the inert gas in the inert gas tank into the gas dryer for drying and then inputs the inert gas and the air into the experiment bin from the plastic pipe, when a bin opening button is pressed down, the control circuit board controls the first liquid crystal glass and the second liquid crystal glass to be opened, first liquid crystal glazing this moment, second liquid crystal glazing is transparent, the operating personnel of being convenient for look over the condition in the experiment storehouse, control circuit board and control fan, the gas dryer, the air valve, air dryer work, the control air pump is closed, make air dryer send the gas dryer after the drying back into gas dryer secondary drying, blow in the experiment storehouse by the air after the fan with the drying, prevent that the external air from flowing into the experiment storehouse from the door, when pressing and closing the door button, first liquid crystal glazing of control circuit board control, second liquid crystal glazing closes, first liquid crystal glazing this moment, second liquid crystal glazing has become nontransparent, prevent that external light from getting into the experiment storehouse and influencing the experiment effect.
The utility model discloses a control circuit board includes the minimum system of singlechip, the relay group, receive the information that processing temperature sensor, humidity transducer detected by the minimum system of singlechip, and show on sending this information to the touch-sensitive screen, and receive the instruction information that the touch-sensitive screen sent, accomplish corresponding cut-off according to received instruction information control relay group, make relay group control laser emitter, the heater, the refrigerator, the fan, the gas desicator, the air valve, air dryer, the air pump, liquid crystal glazing accomplishes the cut-off that corresponds.
The utility model discloses a relay group comprises 10 the same relays, number from 1 to 10 to these 10 relays, relay 1 to 10 is connected with laser emitter in proper order, the heater, the refrigerator, the fan, the gas desicator, the air valve, air dryer, the air pump, first liquid crystal glass, second liquid crystal glass, control laser emitter respectively, the heater, the refrigerator, the fan, the gas desicator, the air valve, air dryer, the air pump, first liquid crystal glass, second liquid crystal glass's break-make, the relay closes for opening, the relay disconnection is the switch.
The utility model discloses an operation flow as follows: when the terahertz spectrum detection equipment is needed to detect the object to be detected, the environment in the experimental bin is firstly adjusted to enable the environment in the experimental bin to reach the experimental condition of the terahertz spectrum detection equipment, the bin door of the experimental bin is closed, an operator respectively presses a temperature setting button and a humidity setting button, corresponding temperature value and humidity value are input on a selection keyboard, a confirmation key on the selection keyboard is pressed to set the temperature and the humidity in the experimental bin, the temperature and the humidity in the experimental bin are detected through a temperature sensor and a humidity sensor, the detected temperature and the detected humidity are displayed on a touch screen, when the temperature sensor detects that the temperature in the experimental bin is too low, the control circuit board controls the heater to heat the experimental bin, when the temperature sensor detects that the temperature in the experimental bin is too high, the control circuit board controls the refrigerator to cool the experimental bin, enabling the temperature in the experimental bin to be within a preset value range; the humidity in the experiment bin is detected through a humidity sensor, when the humidity in the experiment bin is too high, the experiment bin needs to be dehumidified, an operator selects a dehumidification mode on a touch screen, when the air dehumidification is needed, the operator presses an air drying button, a control circuit board controls a gas dryer, an air valve and an air dryer to work, a control air pump is closed, so that the air dryer sends dried gas into the gas dryer for secondary drying and then inputs the gas into the experiment bin from a plastic pipe, when the inert gas is needed to be dried, the control circuit board controls the gas dryer and the air pump to work by opening when the operator presses the inert gas drying button on the touch screen, the air valve and the air dryer are controlled to be closed, so that the inert gas in an inert gas tank is pumped into the gas dryer by the air pump and then is input into the experiment bin from the plastic pipe after being dried, the humidity in the experimental chamber reaches the preset value range, when the temperature and the humidity in the experimental chamber reach the preset value range, the object to be detected can be detected, an operator presses a chamber door opening button on the touch screen, the control circuit board controls the first liquid crystal glass and the second liquid crystal glass to be opened, the first liquid crystal glass and the second liquid crystal glass are transparent at the moment, the control circuit board controls the fan, the gas dryer, the air valve and the air dryer to work, the air pump is controlled to be closed, so that the air dryer sends the dried gas into the gas dryer for secondary drying, the fan blows the dried air into the experimental chamber to prevent the outside air from flowing into the experimental chamber from the chamber door, the chamber door is closed after the object to be detected is placed, the operator presses a chamber door closing button on the touch screen, and the control circuit board controls the first liquid crystal glass and the second liquid crystal glass to be closed, at the moment, the first liquid crystal glass and the second liquid crystal glass become non-transparent, so that external light is prevented from entering the experimental bin to influence the experimental effect, then a start button on the touch screen is pressed, the control circuit board controls the laser emitter to start working, a laser beam emitted by the laser emitter is projected to an object to be tested, the laser beam is received by the terahertz near-field probe and then transmitted to the terahertz analyzer for analysis, the terahertz analyzer returns the analysis result to the computer, an upper computer developed by the computer displays the analysis result, the environment in the experimental bin needs to be maintained in the experimental process, so the temperature sensor and the humidity sensor continue to detect the temperature and the humidity in the experimental bin, when the temperature sensor detects that the temperature in the experimental bin is too low, the control circuit board controls the heater to heat the experimental bin, when the temperature sensor detects that the temperature in the experimental bin is too high, when the humidity in the experiment chamber is too high and air dehumidification is needed, an operator presses an air drying button, the control circuit board controls the gas dryer, the air valve and the air dryer to work, the air pump is controlled to be closed, so that dried gas is sent into the gas dryer by the air dryer and then is input into the experiment chamber from a plastic pipe after secondary drying, when inert gas is needed for drying, the control circuit board controls the gas dryer and the air pump to be opened and closed when the operator presses the inert gas drying button on the touch screen, so that the air pump pumps the inert gas in the inert gas tank into the gas dryer for drying and then is input into the experiment chamber from the plastic pipe, when detection is finished, the operator presses a stop button on the touch screen, so that the control circuit board controls the laser emitter to stop working, and then pressing a bin opening door button, controlling the first liquid crystal glass and the second liquid crystal glass to be opened by the control circuit board, and opening the bin door by an operator to take out the object to be detected so as to finish the experiment.
Because the utility model discloses a structure of adjusting is carried out to terahertz spectrum check out test set's experimental environment to can obtain following beneficial effect:
1. the utility model discloses a liquid crystal glazing splices into experiment storehouse, adjusts whether liquid crystal glazing is transparent or not to control the illumination in the experiment storehouse, eliminates the influence of fluorescence to the experiment to reduce the influence of external noise to the experiment.
The utility model discloses a temperature and humidity information in the real-time supervision experiment storehouse to change the temperature in the experiment storehouse through heater, refrigerator, change the humidity in the experiment storehouse through gas desicator, air valve, air dryer, inert gas jar, air pump, make the experiment storehouse reach the environment that terahertz spectrum check out test set can carry out the experiment.
Drawings
Fig. 1 is a schematic overall structure diagram of an auxiliary device for a terahertz spectrum detection apparatus experiment of the present invention;
fig. 2 is a schematic structural diagram of an experiment bin of an auxiliary device for an experiment of a terahertz spectrum detection apparatus of the present invention;
fig. 3 is a schematic structural diagram of a bin gate of an auxiliary device for a terahertz spectrum detection apparatus experiment of the present invention;
fig. 4 is a schematic structural diagram of two sides of a second liquid crystal glass of an auxiliary device for a terahertz spectrum detection apparatus experiment of the present invention;
fig. 5 is a schematic structural diagram of an optical device of an auxiliary device for a terahertz spectrum detection apparatus experiment according to the present invention;
fig. 6 is a schematic view of a touch screen interface of an auxiliary device for an experiment of a terahertz spectrum detection apparatus of the present invention;
fig. 7 is a working schematic diagram of an auxiliary device for an experiment of a terahertz spectrum detection apparatus of the present invention;
fig. 8 is an operation flowchart of the auxiliary device for the experiment of the terahertz spectrum detection apparatus of the present invention.
The main elements are indicated by symbols.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Please refer to fig. 1 to 8, which illustrate an auxiliary device for terahertz spectrum detection equipment in the present invention, including an experimental chamber 1, a laser emitter 2, a heater 3, a refrigerator 4, an optical device 5, an object stage 6, a chamber door 7, an optical fiber 8, a terahertz near-field probe 9, a touch screen 10, a control circuit board 11, a humidity sensor 12, a temperature sensor 13, a blower 14, a gas dryer 15, an air valve 16, an air dryer 17, an inert gas tank 18, an air pump 19, and a plastic tube 20.
As shown in fig. 1, the laser emitter 2, the optical device 5, the objective table 6, the terahertz near-field probe 9, the humidity sensor 12, and the temperature sensor 13 are all installed in the experiment chamber 1, and the laser emitter 2 and the terahertz near-field probe 9 are installed above the experiment chamber 1 and located on the same horizontal line, the objective table 6 is installed at the bottom of the experiment chamber 1 for placing the object to be tested, a chamber door 7 is provided at one side of the experiment chamber 1, an operator puts the object on the objective table 6 in the experiment chamber 1 through the chamber door 7, the humidity sensor 12 and the temperature sensor 13 are installed on the inner wall of the experiment chamber 1 for detecting the humidity and the temperature in the experiment chamber 1, the heater 3 and the refrigerator 4 are installed outside the experiment chamber 1 and tightly attached to the experiment chamber 1, a hole is formed at the contact position of the experiment chamber 1 with the heater 3 and the refrigerator 4, so that the gas blown out by the heater 3 and the refrigerator 4 can enter, the optical fiber 8 passes through the experimental bin 1 to be connected with two ends of the terahertz near-field probe 9 and the terahertz analyzer, information received by the terahertz near-field probe 9 is transmitted to the terahertz analyzer for analysis, the terahertz analyzer returns an analysis result to a computer, an upper computer developed by the computer displays the analysis result, the touch screen 10 and the control circuit board 11 are installed at the top end outside the experimental bin 1, the control circuit board 11 controls the laser emitter 2 to emit a laser beam between 0.1THz and 10THz, the optical path of the laser beam is changed through the optical device 5, so that part of the laser beam passes through a sample to be detected and then enters the terahertz near-field probe 9 together with the other part of the laser beam, the touch screen 10 is used for displaying temperature and humidity information in the experimental bin 1, and an instruction can be sent to the control circuit board 11 through the touch screen 10, so that the, a fan 14, a gas dryer 15, an air valve 16, an air dryer 17, an inert gas tank 18, an air pump 19 and a plastic tube 20 are installed outside the experimental bin 1, the air dryer 17 and the inert gas tank 18 are connected to the gas dryer 15 in parallel, the air valve 16 is arranged between the air dryer 17 and the gas dryer 15 and used for controlling the gas in the air dryer 17 to enter the gas dryer 15, the air pump 19 is arranged between the inert gas tank 18 and the gas dryer 15 and used for pumping up the gas in the inert gas tank 18 and inputting the gas into the gas dryer 15, the fan 14 is arranged between the gas dryer 15 and the experimental bin 1, the other plastic tube 20 is further arranged between the gas dryer 15 and the experimental bin 1, so that the gas in the gas dryer 15 can flow into the experimental bin 1 from the plastic tube 20 or the gas dried in the gas dryer 15 can be blown into the experimental bin 1 by the fan 14, the fan 14 and the experiment chamber 1, the fan 14 and the gas dryer 15, the gas dryer 15 and the air valve 16, the gas dryer 15 and the air pump 19, the air pump 19 and the inert gas tank 18, and the air valve 16 and the air dryer 17 are connected through plastic pipes 20, and the plastic pipe 20 between the fan 14 and the experiment chamber 1 extends into the experiment chamber 1.
As shown in fig. 2, the experimental chamber 1 comprises first liquid crystal glasses 21, an opening 22, a silica gel sealing groove 23, a magnetic self-absorption door curtain 24, an air hole 25, and a noise-proof glass patch 26, six identical first liquid crystal glasses 21 are combined into the experimental chamber 1, the noise-proof glass patch 26 is arranged on the outer surface of each first liquid crystal glass 21 for reducing the noise in the experimental chamber 1, wherein, the middle of one first liquid crystal glass 21 is provided with a hole 22 which is used as a passage for the object to be measured to enter and exit the experiment chamber 1, the hole 22 is provided with a magnetic self-absorption door curtain 24, a more outside air flows in experiment storehouse 1 for reducing when operating personnel places the object that awaits measuring, and the entrance to a cave 22 next door is equipped with silica gel seal groove 23, avoids appearing the space between door 7 and the experiment storehouse 1, prevents that this department from having the outside air to flow in, and experiment storehouse 1 one side right side below is equipped with gas pocket 25, prevents that fan 14 from blowing in the gas pressure increase in experiment storehouse 1 and leading to experiment storehouse 1 damaged.
As shown in fig. 3, the chamber door 7 includes a second liquid crystal glass 45, a hinge 46, a door handle 47, and a lock 48, the hinge 46 is used to fix the second liquid crystal glass 45 on the first liquid crystal glass 21 on the side of the experimental chamber 1 where the hole 22 is provided, the door handle 47 and the lock 48 are further provided on the right side of the second liquid crystal glass 45, the door handle 47 is pulled to drive the second liquid crystal glass 45 to move, so as to complete the opening and closing of the chamber door 7, and the lock 48 is used to lock the chamber door 7 on the first liquid crystal glass 21.
As shown in fig. 4, the outer surface of the second liquid crystal glass 45 is attached with a noise-proof glass sticker 26 which is the same as the surface of the first liquid crystal glass 21, the inner surface of the second liquid crystal glass 45 is provided with a silica gel sealing strip 27, and when the door 7 is closed, the silica gel sealing strip 27 on the second liquid crystal glass 45 is embedded into the silica gel sealing groove 23, so as to block the external air from flowing into the experiment chamber 1 from the door 7.
The first liquid crystal glass 21 and the second liquid crystal glass 45 are made of the same liquid crystal glass, the liquid crystal glass is a high-tech photoelectric glass product formed by packaging a liquid crystal film in a high-temperature high-pressure mode in a sandwich mode, and the liquid crystal film in the middle layer is used as a functional material of the light adjusting glass. The application principle is as follows: the liquid crystal molecules are linearly arranged in a power-on state, and the liquid crystal glass is transparent and transparent; in the off state, the liquid crystal molecules are in a scattering state, at which time the liquid crystal film is transparent but opaque.
As shown in fig. 5, the optical device 5 includes a beam splitter 28, a reflective mirror 29, a crank-mirror 30, and a beam combiner 31, four identical crank-mirror 30 are installed around the object to be measured in a rectangular shape, the beam splitter 28 and the laser emitter 2 are installed at an angle of 45 degrees, the laser beam emitted by the laser emitter 2 passes through the beam splitter 28 and then splits into two laser beams, one laser beam enters the beam combiner 31 after being reflected three times by three identical light diffusers, the other laser beam irradiates the crank-mirror 30 at the upper left corner, the crank-mirror 30 reflects to the crank-mirror 30 at the lower left corner, the crank-mirror 30 at the lower left corner reflects the received laser beam to the object to be measured, passes through the object to enter the crank-mirror 30 at the lower right corner, the crank-mirror 30 at the lower right corner reflects the received laser beam to the crank-mirror 30 at the upper right corner, and enters the beam combiner 31 after being reflected by the crank-mirror 30 at the upper right corner, the two laser beams are combined by the light combining mirror 31 and then enter the terahertz near-field probe 9, and the terahertz near-field probe 9 transmits the detected information to the terahertz analyzer through the optical fiber 8 for analysis.
As shown in fig. 6, the interface of the touch screen 10 is provided with a temperature setting button 32, a current temperature display window 33, a set temperature display window 34, a humidity setting window 35, a current humidity display window 36, a set humidity display window 37, a selection keyboard 38, a start button 39, a stop button 40, an air drying button 41, an inert gas drying button 42, an opening door button 43, and a closing door button 44, wherein the temperature setting button 32 is used for setting a preset temperature in the experimental chamber 1, and by selecting a temperature value set on the keyboard 38, a confirmation is pressed, that is, the set temperature is displayed on the set temperature display window 34, the current temperature value in the experimental chamber 1, that is, a temperature value detected by the temperature sensor 13, is displayed on the current temperature display window 33, the humidity setting button is used for setting a preset humidity in the experimental chamber 1, and by selecting a humidity value set on the keyboard 38, pressing confirmation, namely displaying the set humidity on a set humidity display window 37, displaying the current humidity value in the experimental bin 1 on a current humidity display window 36, namely the humidity value detected by a humidity sensor 12, when a start button 39 is pressed, controlling a laser emitter 2 to start working by a control circuit board 11, when a stop button 40 is pressed, controlling the laser emitter 2 to stop working by the control circuit board 11, when an air drying button 41 is pressed, controlling a gas dryer 15, an air valve 16 and an air dryer 17 to work by the control circuit board 11, controlling an air pump 19 to be closed, enabling the air dryer 17 to send the dried gas into the gas dryer 15 for secondary drying, then inputting the dried gas into the experimental bin 1 from a plastic pipe 20, when an inert gas drying button 42 is pressed, controlling the gas dryer 15 and the air pump 19 to open to work by the control circuit board 11, controlling the air valve 16 and the air dryer 17 to be closed, the air pump 19 pumps the inert gas in the inert gas tank 18 into the gas dryer 15 for drying, then the inert gas and the air are input into the experiment chamber 1 from the plastic tube 20, so that the inert gas and the air entering the experiment chamber 1 can be switched, when the chamber opening door button 43 is pressed down, the control circuit board 11 controls the first liquid crystal glass 21 and the second liquid crystal glass 45 to be opened, at the moment, the first liquid crystal glass 21 and the second liquid crystal glass 45 are transparent, an operator can conveniently check the condition in the experiment chamber 1, the control circuit board 11 controls the fan 14, the gas dryer 15, the air valve 16 and the air dryer 17 to work, the air pump 19 is controlled to be closed, the air dryer 17 sends the dried gas into the gas dryer 15 for secondary drying, the fan 14 blows the dried air into the experiment chamber 1, the external air is prevented from flowing into the experiment chamber 1 from the chamber door 7, and when the chamber closing door 7 button is pressed down, the control circuit board 11 controls the first liquid crystal glass 21, the second liquid crystal glass, The second liquid crystal glass 45 stops working, and at the moment, the first liquid crystal glass 21 and the second liquid crystal glass 45 become non-transparent, so that the external light is prevented from entering the experiment bin 1 to influence the experiment effect.
As shown in fig. 7, the control circuit board 11 includes a minimum system of a single chip, and a relay set, where the minimum system of the single chip receives and processes information detected by the temperature sensor 13 and the humidity sensor 12, and sends the information to the touch screen 10 for display, and receives instruction information sent by the touch screen 10, and controls the relay set to complete corresponding on/off according to the received instruction information, so that the relay set controls the laser emitter 2, the heater 3, the refrigerator 4, the blower 14, the gas dryer 15, the air valve 16, the air dryer 17, the air pump 19, and the liquid crystal glass to complete corresponding on/off.
The single chip microcomputer minimum system adopts STM32F103ZET6 as an inner core.
The relay group comprises 10 identical relays, the 10 relays are numbered from 1 to 10, the relays from 1 to 10 are sequentially connected with the laser emitter 2, the heater 3, the refrigerator 4, the fan 14, the gas dryer 15, the air valve 16, the air dryer 17, the air pump 19, the first liquid crystal glass 21 and the second liquid crystal glass, the laser emitter 2, the heater 3, the refrigerator 4, the fan 14, the gas dryer 15, the air valve 16, the air dryer 17, the air pump 19, the first liquid crystal glass 21 and the second liquid crystal glass 45 are respectively controlled to be switched on and off, the relays are switched on, and the relays are switched off.
The air valve 16 is an electromagnetic air valve, so that the control circuit board 11 can control the on-off of the electromagnetic air valve conveniently.
The power supply mode of the laser transmitter 2, the heater 3, the refrigerator 4, the touch screen 10, the control circuit board 11, the humidity sensor 12, the temperature sensor 13, the fan 14, the gas dryer 15, the air valve 16, the air dryer 17 and the air pump 19 adopts a voltage reduction and voltage stabilization power supply to convert 220V mains supply into corresponding voltage class for power supply, the output voltage of the voltage reduction and voltage stabilization power supply is adjusted according to the rated voltage of the laser transmitter 2, the heater 3, the refrigerator 4, the touch screen 10, the control circuit board 11, the humidity sensor 12, the temperature sensor 13, the fan 14, the gas dryer 15, the air valve 16, the air dryer 17 and the air pump 19, and the purpose of safe power supply is achieved.
As shown in fig. 8, the operation flow of the present invention is as follows: when the terahertz spectrum detection equipment is needed to detect the object to be detected, firstly, the environment in the experiment chamber 1 is adjusted to enable the environment in the experiment chamber 1 to reach the experiment condition of the terahertz spectrum detection equipment, the chamber door 7 of the experiment chamber 1 is closed, an operator respectively presses the temperature setting button 32 and the humidity setting button, corresponding temperature value and humidity value are input on the selection keyboard 38, the confirmation key on the selection keyboard 38 is pressed to set the temperature and the humidity in the experiment chamber 1, the temperature and the humidity in the experiment chamber 1 are detected through the temperature sensor 13 and the humidity sensor 12, the detected temperature and the detected humidity are displayed on the touch screen 10, when the temperature sensor 13 detects that the temperature in the experiment chamber 1 is too low, the control circuit board 11 controls the heater 3 to heat the experiment chamber 1, when the temperature sensor 13 detects that the temperature in the experiment chamber 1 is too high, the control circuit board 11 controls the refrigerator 4 to cool the experiment bin 1, so that the temperature in the experiment bin 1 is within a preset value range; the humidity in the experiment chamber 1 is detected by the humidity sensor 12, when the humidity in the experiment chamber 1 is too high, the experiment chamber 1 needs to be dehumidified, an operator selects a dehumidification mode on the touch screen 10, when the air dehumidification needs to be adopted, the operator presses the air drying button 41, the control circuit board 11 controls the gas dryer 15, the air valve 16 and the air dryer 17 to work, the air pump 19 is controlled to be closed, so that the air dryer 17 sends the dried gas into the gas dryer 15 for secondary drying and then inputs the gas into the experiment chamber 1 from the plastic tube 20, when the inert gas needs to be adopted for drying, the control circuit board 11 controls the gas dryer 15 and the air pump 19 to be opened to work, the air valve 16 and the air dryer 17 are controlled to be closed, so that the air pump 19 pumps the inert gas in the inert gas tank 18 into the gas dryer 15 for drying and then inputs the inert gas into the experiment chamber 1 from the plastic tube 20, so that the humidity in the experimental bin 1 reaches the preset value range, when the temperature and the humidity in the experimental bin 1 both reach the preset value range, the object to be detected can be detected, the operator presses the bin door opening button 43 on the touch screen 10, the control circuit board 11 controls the first liquid crystal glass 21 and the second liquid crystal glass 45 to be opened, at this time, the first liquid crystal glass 21 and the second liquid crystal glass 45 are transparent, the control circuit board 11 controls the fan 14, the gas dryer 15, the air valve 16 and the air dryer 17 to work, the air pump 19 is controlled to be closed, so that the air dryer 17 sends the dried gas into the gas dryer 15 for secondary drying, the fan 14 blows the dried air into the experimental bin 1, the external air is prevented from flowing into the experimental bin 1 from the bin door 7, after the object to be detected is placed, the bin door 7 is closed, and then the operator presses the bin door closing button 7 on the touch screen 10, the control circuit board 11 controls the first liquid crystal glass 21 and the second liquid crystal glass 45 to be closed, at the moment, the first liquid crystal glass 21 and the second liquid crystal glass 45 become non-transparent, external light is prevented from entering the experiment chamber 1 to influence the experiment effect, then the start button 39 on the touch screen 10 is pressed, the control circuit board 11 controls the laser emitter 2 to start working, a laser beam emitted by the laser emitter 2 is projected through an object to be detected, the laser beam is received by the terahertz near-field probe 9 and then transmitted to the terahertz analyzer for analysis, the terahertz analyzer returns the analysis result to the computer, an upper computer developed by the computer displays the analysis result, in the experiment process, the environment in the experiment chamber 1 needs to be kept, so the temperature sensor 13 and the humidity sensor 12 continue to detect the temperature and the humidity in the experiment chamber 1, when the temperature sensor 13 detects that the temperature in the experiment chamber 1 is too low, the control circuit board 11 controls the heater 3 to heat the experiment chamber 1, when the temperature sensor 13 detects that the temperature in the experiment chamber 1 is too high, the control circuit board 11 controls the refrigerator 4 to cool the experiment chamber 1, when the humidity in the experiment chamber 1 is too high and air dehumidification is needed, an operator presses the air drying button 41, the control circuit board 11 controls the gas dryer 15, the air valve 16 and the air dryer 17 to work, the air pump 19 is controlled to be closed, so that the air dryer 17 sends the dried gas into the gas dryer 15 for secondary drying and then inputs the dried gas into the experiment chamber 1 from the plastic pipe 20, when inert gas is needed for drying, when the operator presses the inert gas drying button 42 on the touch screen 10, the control circuit board 11 controls the gas dryer 15 and the air pump 19 to work, the air valve 16 and the air dryer 17 are controlled to be closed, so that the air pump 19 pumps the inert gas in the inert gas tank 18 into the gas dryer 15 for drying and then dries the inert gas from the plastic pipe 20, inputting the experiment chamber 1, when the detection is finished, pressing a stop button 40 on the touch screen 10 by an operator, controlling the laser emitter 2 to stop working by the control circuit board 11, then pressing a chamber door opening button 43, controlling the first liquid crystal glass 21 and the second liquid crystal glass 45 to be opened by the control circuit board 11, and opening the chamber door 7 by the operator to take out the object to be detected to finish the experiment.
The utility model discloses a theory of operation and working process as follows:
as shown in fig. 7, when the terahertz spectrum detection device is required to detect the object to be detected, the environment in the experimental bin 1 is first adjusted to make the environment in the experimental bin 1 meet the experimental conditions of the terahertz spectrum detection device, the bin gate 7 of the experimental bin 1 is closed, the temperature value and the humidity value in the experimental bin 1 are set on the touch screen 10 by the operator, the temperature and the humidity in the experimental bin 1 are detected by the temperature sensor 13 and the humidity sensor 12, and the detected temperature and humidity are displayed on the touch screen 10, when the temperature sensor 13 detects that the temperature in the experiment chamber 1 is too low, the control circuit board 11 controls the heater 3 to heat the experiment chamber 1, when the temperature sensor 13 detects that the temperature in the experiment bin 1 is overhigh, the control circuit board 11 controls the refrigerator 4 to cool the experiment bin 1, so that the temperature in the experiment bin 1 is in a preset value range; the humidity in the experiment bin 1 is detected through the humidity sensor 12, when the humidity in the experiment bin 1 is too high, the experiment bin 1 needs to be dehumidified, an operator selects a dehumidification mode on the touch screen 10, when the air dehumidification needs to be adopted, the control circuit board 11 controls the gas dryer 15, the air valve 16 and the air dryer 17 to work, the air pump 19 is controlled to be closed, so that the air dryer 17 sends the dried gas into the gas dryer 15 for secondary drying and then inputs the dried gas into the experiment bin 1 from the plastic pipe 20, when the inert gas needs to be adopted for drying, the control circuit board 11 controls the gas dryer 15 and the air pump 19 to be opened to work, the air valve 16 and the air dryer 17 are controlled to be closed, so that the inert gas in the inert gas tank 18 is pumped into the gas dryer 15 by the air pump 19 and then is input into the experiment bin 1 from the plastic pipe 20, so that the humidity in the experiment bin 1 reaches a preset value range, when the temperature and the humidity in the experimental bin 1 reach the preset value ranges, the object to be detected can be detected, an operator presses a bin opening door button 43 on the touch screen 10, the control circuit board 11 controls the first liquid crystal glass 21 and the second liquid crystal glass to be opened, at the moment, the first liquid crystal glass 21 and the second liquid crystal glass 45 are transparent, the control circuit board 11 controls the fan 14, the gas dryer 15, the air valve 16 and the air dryer 17 to work, the air pump 19 is controlled to be closed, so that after the air dryer 17 sends the dried gas into the gas dryer 15 for secondary drying, the fan 14 blows the dried air into the experimental bin 1, the external air is prevented from flowing into the experimental bin 1 from the bin door 7, after the object to be detected is placed, the bin door 7 is closed, the operator presses a bin closing door 7 button on the touch screen 10, and the control circuit board 11 controls the first liquid crystal glass 21, The second liquid crystal glass 45 is closed, at the moment, the first liquid crystal glass 21 and the second liquid crystal glass 45 become non-transparent, external light is prevented from entering the experiment chamber 1 to influence the experiment effect, then the start button 39 on the touch screen 10 is pressed, the control circuit board 11 controls the laser emitter 2 to start working, a laser beam emitted by the laser emitter 2 is projected to an object to be tested, the laser beam is received by the terahertz near-field probe 9 and transmitted to the terahertz analyzer for analysis, the terahertz analyzer returns the analysis result to the computer, an upper computer developed by the computer displays the analysis result, in the experiment process, the environment in the experiment chamber 1 needs to be maintained, so the temperature sensor 13 and the humidity sensor 12 continue to detect the temperature and the humidity in the experiment chamber 1, when the temperature sensor 13 detects that the temperature in the experiment chamber 1 is too low, the control circuit board 11 controls the heater 3 to heat the experiment chamber 1, when the temperature sensor 13 detects that the temperature in the experiment chamber 1 is too high, the control circuit board 11 controls the refrigerator 4 to cool the experiment chamber 1, when the humidity in the experiment chamber 1 is too high and air dehumidification is needed, an operator presses the air drying button 41, the control circuit board 11 controls the gas dryer 15, the air valve 16 and the air dryer 17 to work, the control air pump 19 is closed, so that the air dryer 17 sends the dried gas into the gas dryer 15 for secondary drying and then inputs the gas into the experiment chamber 1 from the plastic pipe 20, when inert gas is needed for drying, the control circuit board 11 controls the gas dryer 15 and the air pump 19 to open and work, controls the air valve 16 and the air dryer 17 to close, so that the air pump 19 pumps the inert gas in the inert gas tank 18 into the gas dryer 15 for drying and then inputs the inert gas into the experiment chamber 1 from the plastic pipe 20, when the detection is finished, an operator presses the stop button 40 on the touch screen 10, the control circuit board 11 controls the laser emitter 2 to stop working, and then presses the door opening button 43, the control circuit board 11 controls the first liquid crystal glass 21 and the second liquid crystal glass 45 to be opened, and the operator opens the door 7 to take out the object to be detected, so that the experiment is finished.
Claims (4)
1. The utility model provides an auxiliary device for terahertz spectrum check out test of equipment that now: comprises an experiment chamber, a laser transmitter, a heater, a refrigerator, an optical device, an objective table, a chamber door, an optical fiber, a terahertz near-field probe, a touch screen, a control circuit board, a humidity sensor, a temperature sensor, a fan, a gas dryer, an air valve, an air dryer, an inert gas tank, an air pump and a plastic pipe, wherein the laser transmitter, the optical device, the objective table, the terahertz near-field probe, the humidity sensor and the temperature sensor are all arranged in the experiment chamber, the laser transmitter and the terahertz near-field probe are arranged above the middle part of the experiment chamber and are positioned at the same horizontal line, the objective table is arranged at the bottom part in the experiment chamber and is used for placing an object to be detected, the chamber door is arranged at one side of the experiment chamber, an operator can put the object on the objective table in the experiment chamber through the chamber door, the humidity sensor and the temperature sensor are arranged on the, the heater and the refrigerator are arranged outside the experiment chamber and are tightly attached to the experiment chamber, a hole is formed at the contact part of the experiment chamber and the heater and the refrigerator, so that the gas blown out by the heater and the refrigerator enters the experiment chamber, the optical fiber passes through the experiment chamber and is connected with two ends of the terahertz near-field probe and the terahertz analyzer, the information received by the terahertz near-field probe is transmitted to the terahertz analyzer for analysis, the terahertz analyzer returns the analysis result to the computer, the upper computer developed by the computer displays the analysis result, the touch screen and the control circuit board are arranged at the top end outside the experiment chamber, the control circuit board controls the laser emitter to emit laser beams between 0.1THz and 10THz, the optical path of the laser beams is changed through the optical device, part of the laser beams can enter the terahertz near-field probe together with the other part of the laser beams after passing through the sample to be, and can send the order to the control circuit board through the touch-sensitive screen, make the control circuit board finish corresponding control, the air blower, gas dryer, air dryer, inert gas tank, air pump, plastic tubing are installed outside the experimental storehouse, air dryer and inert gas tank are connected to the gas dryer in parallel, there are air valves between air dryer and the gas dryer, the gas used for controlling the air in the air dryer enters the gas dryer, there are air pumps between inert gas tank and the gas dryer, the gas used for pumping up the gas in the inert gas tank is input into the gas dryer, there are air blowers between the gas dryer and the experimental storehouse, the gas dryer and experimental storehouse also have another plastic tubing, make the gas in the gas dryer can flow into the experimental storehouse from the plastic tubing, can also blow the gas dried in the gas dryer into the experimental storehouse by the air blower, the fan and the experiment bin, the fan and the gas dryer, the gas dryer and the air valve, the gas dryer and the air pump, the air pump and the inert gas tank, and the air valve and the air dryer are connected through plastic pipes, and the plastic pipe between the fan and the experiment bin extends into the experiment bin.
2. The auxiliary device for the experiment of the terahertz spectrum detection equipment as claimed in claim 1, wherein: the experiment storehouse includes first liquid crystal glazing, the entrance to a cave, the silica gel seal groove, magnetism is from inhaling the door curtain, the gas pocket, noise proof glass pastes, adopt six the same first liquid crystal glazing to make up into the experiment storehouse, noise proof glass pastes at every first liquid crystal glazing surface, a noise for reducing in the experiment storehouse, wherein be equipped with the entrance to a cave in the middle of the first liquid crystal glazing, pass in and out the passageway in experiment storehouse as the object to be measured, be equipped with magnetism on the entrance to a cave from inhaling the door curtain, a more outside air inflow experiment storehouse when being used for reducing operating personnel to place the object to be measured, the entrance to a cave next door is equipped with the silica gel seal groove, avoid appearing the space between door and the experiment storehouse, it has outside air inflow to prevent that this department, experiment storehouse one side right side below is equipped with the gas pocket, prevent that the fan from blowing.
3. The auxiliary device for the experiment of the terahertz spectrum detection equipment as claimed in claim 1, wherein: the bin door comprises second liquid crystal glass, a hinge, a door handle and a lock, the second liquid crystal glass is fixed on the first liquid crystal glass on one side, provided with the hole, of the experimental bin through the hinge, the door handle and the lock are further arranged on the right side of the second liquid crystal glass, the door handle is pulled to drive the second liquid crystal glass to move, the bin door is opened and closed, and the lock is used for locking the bin door on the first liquid crystal glass.
4. The auxiliary device for the experiment of the terahertz spectrum detection equipment as claimed in claim 3, wherein: the utility model discloses a bin gate, including first liquid crystal glass, second liquid crystal glass, silica gel sealing strip, silica gel sealing groove, the same noise control glass subsides on second liquid crystal glass surface subsides have and first liquid crystal glass surface, and second liquid crystal glass internal surface is equipped with the silica gel sealing strip, and when the bin gate was closed, the last silica gel sealing strip embedding silica gel sealing groove of second liquid crystal glass to this blocks in the external air flowed into the experiment storehouse from bin gate department.
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| CN110487744A (en) * | 2019-09-18 | 2019-11-22 | 华东交通大学 | A kind of auxiliary device for the experiment of tera-hertz spectra detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110487744A (en) * | 2019-09-18 | 2019-11-22 | 华东交通大学 | A kind of auxiliary device for the experiment of tera-hertz spectra detection device |
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