CN206339883U - Terahertz experimental enviroment monitoring system - Google Patents
Terahertz experimental enviroment monitoring system Download PDFInfo
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- CN206339883U CN206339883U CN201621202941.4U CN201621202941U CN206339883U CN 206339883 U CN206339883 U CN 206339883U CN 201621202941 U CN201621202941 U CN 201621202941U CN 206339883 U CN206339883 U CN 206339883U
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Abstract
The utility model is related to a kind of Terahertz experimental enviroment monitoring system.Terahertz experimental enviroment monitoring system includes temperature-control circuit, air pressure detection circuit, humidity measuring circuit and main controller, main controller.Circuit and main controller are controlled by combination temperature, the temperature information of Terahertz experimental box can be carried out to gather and adjust in real time to control, and keep the temperature at temperature constant state；Circuit, air valve and main controller also are detected by combining air pressure, the nitrogen pressure force value in Terahertz experimental box is carried out to gather and adjust in real time to control and keep the constant of pressure value；The relative humidity of box house is also detected by humidity measuring circuit, and combination temperature control circuit and air valve ensure the humidity value of Terahertz chamber.The system can detect temperature information, pressure information and humidity information in Terahertz chamber in real time, while can also keep temperature information, pressure information and humidity information in normal conditions, and then ensure that the accuracy of Terahertz chamber ambient parameter.
Description
Technical field
The utility model is related to Terahertz Technology field, more particularly to Terahertz experimental enviroment monitoring system.
Background technology
Terahertz (THz) ripple is electromagnetic wave, and wavelength is short, is produced without ionising radiation, in medical treatment, food, safety monitoring, army
The fields such as thing have great application prospect.Most of polar molecules such as hydrone, has strong absorption to THz wave.
In Terahertz Technology, using the different conditions of the distinguishable biological tissue of strong absorption characteristic to water, such as to human body burned part
Degree of injury diagnosed, control of product quality can also be carried out, such as instrument surface moisture content is to determine that its is fresh
Degree.Therefore in Terahertz test, experiment, higher is required to experiment or test environment, temperature, humidity, pressure will influence to survey
Measure data.
Usually used Terahertz experimental box uses the nitrogen that box house fills high-purity, inside experimental box body
The discharge of the gas such as moisture, make test result interference-free, it is ensured that the accuracy of experiment.And it is temperature now in chamber, wet
The experimental situation unknown parameters such as degree, atmospheric pressure, it is impossible to accurately judge the correctness of experiment.
Utility model content
Based on this, it is necessary to can detect there is provided one kind regarding to the issue above and can keep warm in Terahertz chamber
The constant of information, pressure information and humidity information ambient parameter is spent, so that it is guaranteed that Terahertz chamber ambient parameter accuracy
Terahertz experimental enviroment monitoring system.
A kind of Terahertz experimental enviroment monitoring system, including：
Temperature-control circuit, for gathering and adjusting the temperature information in Terahertz chamber；
Air pressure detects circuit, is connected by air valve with nitrogen pot, for gathering the letter of the air pressure in the Terahertz chamber
Breath；
Humidity measuring circuit, for gathering the humidity information in the Terahertz experimental box；
Main controller, is connected, the master control with the temperature-control circuit, air pressure detection circuit, humidity measuring circuit respectively
Device is used to make the temperature in the Terahertz chamber permanent according to the temperature information of the collection control temperature-control circuit
It is fixed；It is additionally operable to according to making the pressure information control of the collection of the air pressure detection circuit air valve regulation nitrogen flow too
Air pressure constant in hertz chamber.
In wherein one embodiment, the temperature-control circuit includes temperature collect module and temperature control modules；Its
In,
The temperature collect module includes constant-current source and temperature sensor；The temperature control modules include Peltier；It is main
Control device is connected with the temperature sensor, Peltier respectively；
The constant-current source provides constant current drive signal for the temperature sensor；The temperature sensor is by the real-time of collection
Temperature signal is transmitted to the main controller, the main controller according to the real time temperature signal control the Peltier heating or
Refrigeration, makes the temperature of the Terahertz experimental box constant.
In wherein one embodiment, the quantity of the temperature sensor is multiple, and the temperature collect module also includes
Multi-channel gating device, the first amplifying unit and the first analog-digital converter,
Multiple temperature sensors are connected with the multi-channel gating device；The multi-channel gating device is used to select conducting institute
State temperature sensor and the constant-current source；
First output end of the constant-current source, the first amplifying unit, the first analog-digital converter are sequentially connected electrically；The constant current
Second output end in source is connected with the first amplifying unit, and reference voltage is provided for first amplifying unit.
In wherein one embodiment, the temperature sensor is resistance temperature detector.
In wherein one embodiment, the temperature control modules include relay, the first triode, the second triode and
First resistor；
The base stage of first triode is connected with the main controller, and colelctor electrode and the power supply of first triode connect
Connect, the emitter stage of first triode is connected with the base stage of second triode；
The emitter stage of second triode is connected with the first resistor, main controller respectively, the first resistor it is another
One end is grounded, and the colelctor electrode of second triode is connected with the normally-closed contact of the relay；
The normally opened contact of the relay is connected with power supply, and the moved end of the relay is connected with the Peltier, described
The two ends of relay coil are connected with the main controller, power supply respectively.
In wherein one embodiment, the temperature control modules also include buffer protection unit, the buffer protection list
Member includes second resistance, 3rd resistor and the first electric capacity；
The emitter stage of first triode is successively through the second resistance, 3rd resistor, the first capacity earth；Described
Two resistance and the common port of 3rd resistor are connected with the base stage of second triode.
In wherein one embodiment, the air pressure detection circuit is put including pressure sensor, constant current driving unit, second
Big unit, the second analog-digital converter；
Input of the pressure sensor respectively with the constant current driving unit, the second amplifying unit is connected；
The output end of second amplifying unit, the second analog-digital converter, main controller, air valve are sequentially connected electrically.
In wherein one embodiment, the constant current driving unit includes constant pressure source and the 4th resistance, the constant pressure source
First connection end is connected with the input of the pressure sensor, and the second connection end of the constant pressure source is passed with the pressure respectively
One end connection of the output end of sensor, the 4th resistance；The other end of 4th resistance, the 3rd connection end of constant pressure source connect
Ground.
In wherein one embodiment, the humidity measuring circuit includes humidity sensor and humidity signal processing unit；
The humidity sensor, humidity signal processing unit, main controller are sequentially connected electrically；
The humidity sensor is used for the moisture signal for gathering the Terahertz chamber, and the moisture signal is transmitted
To the humidity processing unit enhanced processing.
In wherein one embodiment, also including display device, the display device is connected with the main controller, for showing
Show temperature information, pressure information and the humidity information of the Terahertz chamber.
Above-mentioned Terahertz experimental enviroment monitoring system includes temperature-control circuit, air pressure detection circuit, humidity measuring circuit
And main controller, main controller.Circuit and main controller are controlled by combination temperature, the temperature information of Terahertz experimental box can be entered
Row collection in real time and regulation control, and keep the temperature at temperature constant state；Also circuit, air valve and master control are detected by combining air pressure
Device, carries out gathering and adjusting in real time controlling and keeping the constant of pressure value to the nitrogen pressure force value in Terahertz experimental box；Also lead to
The relative humidity of Humidity Detection electric circuit inspection box house is crossed, and combination temperature control circuit and air valve ensure Terahertz chamber
Humidity value.Temperature information, pressure information and the humidity information phase in Terahertz chamber can be detected in real time by the system
Ambient parameter is closed, while can also keep temperature information, pressure information and humidity information in normal conditions, and then be ensure that
The accuracy of Terahertz chamber.
Brief description of the drawings
Fig. 1 is the block schematic illustration of an embodiment Terahertz experimental enviroment monitoring system；
Fig. 2 is the circuit diagram of an embodiment temperature collect module；
Fig. 3 is the circuit diagram of an embodiment temperature control modules；
Fig. 4 is embodiment Terahertz chamber air pressure detection control circuit diagram.
Embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.Preferred embodiment of the present utility model is given in accompanying drawing.But, the utility model can come real in many different forms
It is existing, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is made to public affairs of the present utility model
The understanding for opening content is more thorough comprehensive.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.It is herein to be in term used in the description of the present utility model
The purpose of description specific embodiment, it is not intended that limitation the utility model.Term as used herein "and/or" includes one
The arbitrary and all combination of individual or multiple related Listed Items.
Block schematic illustration for Terahertz experimental enviroment monitoring system as shown in Figure 1, Terahertz experimental enviroment monitoring system
System includes temperature-control circuit 10, air pressure detection circuit 20, humidity measuring circuit 30 and main controller 40.Main controller 40 respectively with
Temperature-control circuit 10, air pressure detection circuit 20, humidity measuring circuit 30 are connected.Wherein, temperature-control circuit 10 is used to gather
Handled with the temperature information and export the temperature information of collection in regulation Terahertz chamber to main controller 40, its main controller 40
The temperature in Terahertz chamber is set to keep constant according to preset temperature value feedback regulation temperature-control circuit 10.Air pressure detection electricity
Road 20, is connected by air valve 60 with nitrogen pot (not shown), for gathering the pressure information in Terahertz chamber；And will adopt
The pressure information of collection is transferred to main controller 40, and main controller 40 controls air valve according to preset pressure value, and feedback control air valve adjusts nitrogen
Throughput, makes the air pressure constant in Terahertz chamber.Humidity measuring circuit 30 is wet in Terahertz experimental box for gathering
Spend information；And the humidity information of collection is transferred to main controller 40, main controller 40 is according to default humidity value, feedback control temperature control
The flow of circuit 10 and adjusting air valve processed, within a certain period of time, makes temperature value, atmospheric pressure value and the humidity value in Terahertz chamber
Keep constant, so that it is guaranteed that the accuracy of the experimental enviroment in chamber.
In one embodiment, temperature-control circuit 10 includes temperature collect module 110 and temperature control modules 120.Fig. 2 is
The circuit diagram of one embodiment temperature collect module, Fig. 3 is the circuit diagram of an embodiment temperature control modules.Wherein,
Temperature collect module 110 includes constant-current source U1 and temperature sensor.Temperature control modules 120 include Peltier U5.Main controller 40
It is connected respectively with temperature sensor, Peltier U5.Constant-current source U1 provides constant current drive signal for temperature sensor；Temperature sensor
By the real time temperature signal transmission of collection to main controller 40, main controller 40 controls Peltier U5 heating according to real time temperature signal
Or refrigeration, make the temperature of Terahertz experimental box constant.
It is uniformly distributed for guarantee test case internal temperature, occurs without local temperature imbalance, according to body structure and volume,
Using one or more temperature sensors and Peltier U5 combination.In the present embodiment, the quantity of temperature sensor is two.
Wherein, temperature sensor is resistance temperature detector, in the range of -10~80 DEG C, and resistance change scope is 1K~2K Ω
Left and right, can select detection of the PT100 or TP1000 temperature sensor to Terahertz chamber temperature.
With reference to Fig. 2, temperature collect module 110 also includes multi-channel gating device U2, the first amplifying unit 115 and the first modulus
Converter U3.Two temperature sensors (111,113) are connected with multi-channel gating device U2.Multi-channel gating device U2 is used to select to turn on
Temperature sensor (111,113) and constant-current source U1.Constant-current source U1 the first output end 1L, the first amplifying unit 115, the first modulus
Converter U3 is sequentially connected electrically；Constant-current source U1 the second output end 2L is connected with the first amplifying unit 115, is the first amplifying unit
115 provide reference voltage.
Further, the constant-current source U1 exported with two-way, its first output end 1L are exported to multi-channel gating device U2 X
End, then inputted by multi-channel gating device U2 Y ends through resistance R8 to the first amplifying unit of instrument 115.Meanwhile, multi-channel gating device U2 also divides
Other temperature sensor 111 and temperature sensor 113 are connected, and directly input constant-current source U1 current signal selection to temperature all the way
Sensor 111 or temperature sensor 113 are used as pumping signal.Because the temperature sensor of selection is resistance temperature detector,
With the change of temperature, the resistance of its temperature sensor can also change therewith, when for temperature sensor increase constant current conduct all the way
During pumping signal, its temperature changed will be showed in the form of the resistance value of change, the voltage of the resistance of change to change
Form is showed, it is achieved thereby that the collection to temperature signal.
If during the quantity more than two of temperature sensor, its multi-channel gating device U2, according to actual demand, can be simultaneously turned on
The connection of two temperature sensors and constant-current source U1, its specific conduction mode can be set according to actual demand, not limited
In this.
Constant-current source U1 the second output end 2L is used as 0 DEG C of reference signal.Wherein, constant-current source U1 another road is exported through electricity
Hinder R5, resistance R6 ground connection.Resistance R5 is detects 0 DEG C of reference resistance of circuit, when constant-current source U1 current flowing resistances R5 causes
Voltage, be used as 0 DEG C of reference voltage.
First amplifying unit 115 includes difference instrument amplifier U3, resistance R7, resistance R8, resistance R9, resistance R10, resistance
R11, electric capacity C2, electric capacity C3, electric capacity C4.The output end of temperature sensor 111 and temperature sensor 113 with resistance R5, resistance
R6 common port connection.The output signal of its temperature sensor 111 and temperature sensor 113 is relative to the first amplifying unit 115
In difference instrument amplifier U3, be operated in a relatively low input range, by increasing resistance R6, be difference instrument amplification
Device U3 input signal provides certain common-mode voltage, input signal is met the input range requirement of instrument amplifier.Wherein, it is electric
The common mode filtering circuit of R9 and electric capacity C2, resistance R10 and electric capacity C4 composition difference instrument amplifiers U3 differential output signal is hindered,
Electric capacity C3 filters the DM EMI signal in differential signal, meanwhile, difference instrument amplifier U3 gain is determined by non-essential resistance R11
It is fixed.Difference instrument amplifier U3 output signals deliver to the first analog-digital converter U3 and carry out analog-to-digital conversion, while by the temperature after conversion
Degree signal is transmitted to main controller 40, by master control by Serial Peripheral Interface (SPI) (Serial Peripheral Interface, SPI)
Device 40 reads the temperature signal that temperature sensor is collected.
With reference to Fig. 3, temperature control modules 120 include relay K, the first triode Q1, the electricity of the second triode Q2 and first
Hinder R1.Wherein, relay K is dpdt relay K.First resistor R1 is current limiting safeguard resistor, and Paar is flowed through in order to protect
Patch U5 electric current is excessive and is compromised or burns.First triode Q1 base stage is connected with main controller 40, the first triode Q1's
Colelctor electrode is connected with power supply, and the first triode Q1 emitter stage is connected with the second triode Q2 base stage.Second triode Q2's
Emitter stage is connected with first resistor R1, main controller 40 respectively, first resistor R1 other end ground connection, the second triode Q2 current collection
Pole is connected with relay K normally-closed contact.Relay K normally opened contact is connected with power supply, relay K moved end and Peltier U5
Connection, the two ends of relay K coils are connected with main controller 40, power supply respectively.
Temperature control modules 120 also include buffer protection unit 121, and buffer protection unit 121 includes second resistance R2, the
Three resistance R3 and the first electric capacity C1.First triode Q1 emitter stage is successively through second resistance R2,3rd resistor R3, the first electric capacity
C1 is grounded；Second resistance R2 is connected with 3rd resistor R3 common port with the second triode Q2 base stage.
When main controller 40 detects the temperature signal in Terahertz chamber, its main controller 40 believes the temperature detected
Number judgements is compared with preset temperature value, if its temperature signal for detecting is less than located at temperature value, its main controller 40 is just
Heating control signal can be exported, its control signal that heats up controls the first triode Q1 conductings by resistance R12, and heat up control signal
After the buffer protection unit 121 that second resistance R2,3rd resistor R3 and the first electric capacity C1 are constituted, the second triode Q2 is then controlled
Conducting, so as to realize the control to relay K, makes Peltier U5 load forward voltage, into heating work state, until terahertz
The temperature of hereby chamber reaches preset temperature value and keeps temperature constant state.If the actual temperature signal of detection is higher than preset temperature value
When, cooling control signal is sent by its main controller 40, Peltier U5 is loaded a reversely electricity by temperature control modules 120
Pressure, into cooling work state, until the temperature of Terahertz chamber reaches preset temperature value and keeps temperature constant state.
Fig. 4 is embodiment Terahertz chamber air pressure detection control circuit diagram, and air pressure detection circuit 20 includes pressure
Force snesor 210, constant current driving unit 220, the second amplifying unit 230, the second analog-digital converter U7.210 points of pressure sensor
Input not with constant current driving unit 220, the second amplifying unit 230 is connected.The output end of second amplifying unit 230, second
Analog-digital converter U7, main controller 40, air valve 60 are sequentially connected electrically.Wherein, constant current driving unit 220 includes constant pressure source U8 and the 4th
Resistance R4, constant pressure source U8 the first connection end are connected with the input of pressure sensor 210, constant pressure source U8 the second connection end point
Output end, the 4th resistance R4 one end not with pressure sensor 210 are connected；The 4th resistance R4 other end, constant pressure source U8
3rd connection end is grounded.
Wherein, pressure sensor 210, using Wheatstone bridge design.Second amplifying unit 230 amplifies including difference instrument
Device U6, resistance R13, resistance R14, resistance R15 and electric capacity C5.Resistance R13, resistance R14 and electric capacity C5 composition filter circuits, are defeated
Enter end filtering, while as the protective resistance of difference instrument amplifier U6 inputs, the effect with current limliting.Electric capacity C5 also has
Eliminate the DM EMI signal in differential signal.
It is to use Wheatstone bridge pattern according to pressure sensor 210, gives electric bridge one constant current driving, then the change of pressure
Change will be exported in the form of electric current.Different combinations are selected according to the parameter of pressure sensor 210, such as pressure sensor 210
Driving current is 2mA, during with reference to gain resistor R15 Full-span outputs, and its atmospheric pressure value is 100psia, and output voltage is amplified
For 3.521V.The constant current driving unit 220 that constant pressure source U8 is constituted with the 4th resistance R4 will determine that air pressure pressure is completely measured for 100psia
Actual output voltage value when journey is exported.In the present embodiment, it is 2K using 2.5V constant pressure source U8, the 4th resistance R4 resistance
Ohm, i.e., can generate 1.25mA driving current, actual output voltage when air pressure pressure is 100psia Full-span outputs is
(3.521*1.25/2)=2.2V.Its magnitude of voltage exported and atmospheric pressure value direct proportionality, pass through the magnitude of voltage of output
Know corresponding atmospheric pressure value.Air pressure signal in the detection chamber in real time of main controller 40, and be compared with default atmospheric pressure value,
If detect atmospheric pressure value in Terahertz chamber it is too high or how low when, the flow that the gas of control nitrogen air valve 60 enters makes
Atmospheric pressure value in Terahertz experimental box keeps stable.
With reference to Fig. 4, humidity measuring circuit 30 includes humidity sensor 310 and humidity signal processing unit 320；Humidity sensor
Device 310, humidity signal processing unit 320, main controller 40 are sequentially connected electrically.Humidity sensor 310 is used to gather Terahertz experiment
The moisture signal of case, and moisture signal is transmitted to humidity processing unit enhanced processing.Humidity sensor 310 is by the humidity of collection
Signal is transmitted after humidity processing unit processes to main controller 40.When humidity value is too high, the accuracy of experimental result is had a strong impact on.
The moisture signal that main controller 40 is gathered in real time by the rate of exchange is compared with default humidity value.When humidity value is too high, it can pass through
Main controller 40 controls air valve 60, the increase nitrogen amount of adaptation, or controls Peltier U5, faint increase casing by main controller 40
Internal temperature, so as to reduce relative humidity, finally makes the temperature value in Terahertz chamber, atmospheric pressure value and humidity value keep
In standard state.
Also include display device 50, display device 50 is connected with main controller 40, the temperature for showing Terahertz chamber
Information, pressure information and humidity information.Wherein, the display device 50 can be LED matrix, LCD display device or PC terminals.Its
Main controller 40 shows the temperature signal, air pressure signal and moisture signal of detection on the display device 50 simultaneously, facilitates user
Know the experimental enviroment parameter of current Terahertz chamber, if there is exception, can also handle in time.Simultaneously can also be by it
Display device 50 is set to the ambient parameter of Terahertz chamber, for different subjects, sets suitable environment
Parameter.
Above-mentioned Terahertz experimental enviroment monitoring system, can be with by temperature-control circuit 10, Peltier U5 and main controller 40
The temperature information of Terahertz experimental box gather in real time and control is adjusted, and keeps the temperature at temperature constant state；Also pass through
With reference to air pressure detection circuit 20, air valve 60 and main controller 40, the nitrogen pressure force value in Terahertz experimental box is gathered in real time
With regulation control and keep the constant of pressure value；The relative humidity of box house is also detected by humidity measuring circuit 30, and is tied
Close temperature-control circuit 10 and air valve 60 ensures the humidity value of Terahertz chamber, meanwhile, temperature information, air pressure letter will be detected
Breath and humidity information relevant environmental parameter are shown in real time in display device 50.It can be detected and shown in real time by the system
Show temperature information, pressure information and the humidity information relevant environmental parameter in Terahertz chamber, while temperature can also be believed
Breath, pressure information and humidity information are kept in normal conditions, and then ensure that the accuracy of Terahertz chamber.
Each technical characteristic of above example can be combined arbitrarily, to make description succinct, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield, is all considered to be the scope of this specification record.
Above example only expresses several embodiments of the present utility model, and it describes more specific and detailed, but simultaneously
Therefore the limitation to utility model patent scope can not be interpreted as.It should be pointed out that for the ordinary skill people of this area
For member, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this reality
With new protection domain.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of Terahertz experimental enviroment monitoring system, it is characterised in that including：
Temperature-control circuit, for gathering and adjusting the temperature information in Terahertz chamber；
Air pressure detects circuit, is connected by air valve with nitrogen pot, for gathering the pressure information in the Terahertz chamber；
Humidity measuring circuit, for gathering the humidity information in the Terahertz experimental box；
Main controller, is connected, the main controller is used with the temperature-control circuit, air pressure detection circuit, humidity measuring circuit respectively
In controlling the temperature-control circuit to make the temperature in the Terahertz chamber constant according to the temperature information of the collection；Also
The pressure information of collection for detecting circuit according to the air pressure controls the air valve, and regulation nitrogen flow makes the Terahertz
Air pressure constant in chamber.
2. Terahertz experimental enviroment monitoring system according to claim 1, it is characterised in that the temperature-control circuit bag
Include temperature collect module and temperature control modules；Wherein,
The temperature collect module includes constant-current source and temperature sensor；The temperature control modules include Peltier；Main controller
It is connected respectively with the temperature sensor, Peltier；
The constant-current source provides constant current drive signal for the temperature sensor；The temperature sensor is by the real time temperature of collection
Signal transmission to the main controller, the main controller controls heating or the system of the Peltier according to the real time temperature signal
It is cold, make the temperature of the Terahertz experimental box constant.
3. Terahertz experimental enviroment monitoring system according to claim 2, it is characterised in that the number of the temperature sensor
Measure to be multiple, the temperature collect module also includes multi-channel gating device, the first amplifying unit and the first analog-digital converter,
Multiple temperature sensors are connected with the multi-channel gating device；The multi-channel gating device is used to select the conducting temperature
Spend sensor and the constant-current source；
First output end of the constant-current source, the first amplifying unit, the first analog-digital converter are sequentially connected electrically；The constant-current source
Second output end is connected with the first amplifying unit, and reference voltage is provided for first amplifying unit.
4. Terahertz experimental enviroment monitoring system according to claim 2, it is characterised in that the temperature sensor is electricity
Resistance temperature sensor.
5. Terahertz experimental enviroment monitoring system according to claim 2, it is characterised in that the temperature control modules bag
Include relay, the first triode, the second triode and first resistor；
The base stage of first triode is connected with the main controller, and the colelctor electrode of first triode is connected with power supply, institute
The emitter stage for stating the first triode is connected with the base stage of second triode；
The emitter stage of second triode is connected with the first resistor, main controller respectively, the other end of the first resistor
Ground connection, the colelctor electrode of second triode is connected with the normally-closed contact of the relay；
The normally opened contact of the relay is connected with power supply, and the moved end of the relay is connected with the Peltier, the relay
The two ends of device coil are connected with the main controller, power supply respectively.
6. Terahertz experimental enviroment monitoring system according to claim 5, it is characterised in that the temperature control modules are also
Including buffer protection unit, the buffer protection unit includes second resistance, 3rd resistor and the first electric capacity；
The emitter stage of first triode is successively through the second resistance, 3rd resistor, the first capacity earth；Second electricity
Resistance is connected with the common port of 3rd resistor with the base stage of second triode.
7. Terahertz experimental enviroment monitoring system according to claim 1, it is characterised in that the air pressure detects circuit bag
Include pressure sensor, constant current driving unit, the second amplifying unit, the second analog-digital converter；
Input of the pressure sensor respectively with the constant current driving unit, the second amplifying unit is connected；
The output end of second amplifying unit, the second analog-digital converter, main controller, air valve are sequentially connected electrically.
8. Terahertz experimental enviroment monitoring system according to claim 7, it is characterised in that the constant current driving unit bag
Constant pressure source and the 4th resistance are included, the first connection end of the constant pressure source is connected with the input of the pressure sensor, the perseverance
Second connection end of potential source output end respectively with the pressure sensor, one end of the 4th resistance are connected；4th resistance
The other end, the 3rd connection end of constant pressure source is grounded.
9. Terahertz experimental enviroment monitoring system according to claim 1, it is characterised in that the humidity measuring circuit bag
Include humidity sensor and humidity signal processing unit；The humidity sensor, humidity signal processing unit, main controller are electrically connected successively
Connect；
The humidity sensor is used for the moisture signal for gathering the Terahertz chamber, and the moisture signal is transmitted to institute
State humidity signal processing unit enhanced processing.
10. Terahertz experimental enviroment monitoring system according to claim 1, it is characterised in that also including display device, institute
State display device to be connected with the main controller, temperature information, pressure information and humidity for showing the Terahertz chamber
Information.
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| CN201621202941.4U CN206339883U (en) | 2016-10-31 | 2016-10-31 | Terahertz experimental enviroment monitoring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647883A (en) * | 2016-10-31 | 2017-05-10 | 深圳市太赫兹科技创新研究院 | Terahertz test environment monitoring system |
| US11874223B1 (en) | 2022-08-30 | 2024-01-16 | The Goodyear Tire & Rubber Company | Terahertz characterization of a multi-layered tire tread |
-
2016
- 2016-10-31 CN CN201621202941.4U patent/CN206339883U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647883A (en) * | 2016-10-31 | 2017-05-10 | 深圳市太赫兹科技创新研究院 | Terahertz test environment monitoring system |
| WO2018077222A1 (en) * | 2016-10-31 | 2018-05-03 | 深圳市太赫兹科技创新研究院 | Terahertz experiment environment monitoring system |
| US11874223B1 (en) | 2022-08-30 | 2024-01-16 | The Goodyear Tire & Rubber Company | Terahertz characterization of a multi-layered tire tread |
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