CN116865847A - Optical communication environment simulation test system - Google Patents
Optical communication environment simulation test system Download PDFInfo
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- CN116865847A CN116865847A CN202311118475.6A CN202311118475A CN116865847A CN 116865847 A CN116865847 A CN 116865847A CN 202311118475 A CN202311118475 A CN 202311118475A CN 116865847 A CN116865847 A CN 116865847A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 78
- 238000012360 testing method Methods 0.000 title claims abstract description 72
- 238000004891 communication Methods 0.000 title claims abstract description 54
- 238000004088 simulation Methods 0.000 title claims abstract description 31
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 101
- 239000010453 quartz Substances 0.000 claims abstract description 100
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 238000002347 injection Methods 0.000 claims abstract description 23
- 239000007924 injection Substances 0.000 claims abstract description 23
- 238000000605 extraction Methods 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000005259 measurement Methods 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 5
- 238000009755 vacuum infusion Methods 0.000 claims 2
- 238000001514 detection method Methods 0.000 description 10
- 230000001276 controlling effect Effects 0.000 description 5
- 239000002775 capsule Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/073—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an out-of-service signal
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
The invention belongs to the technical field of optical communication, and discloses an optical communication environment simulation test system, which comprises: the vacuum liquid injection device comprises a quartz tube, a vacuum gauge and a temperature controller, wherein both ends of the quartz tube are provided with limiting flanges, and the side surface of the quartz tube is provided with a vacuum air extraction valve and a vacuum liquid injection/gas valve; connecting flanges are sleeved at two ends of the quartz tube, and limiting flanges are used for limiting the connecting flanges; the outer side of the limiting flange is provided with a cascading flange, one end of the cascading flange is in threaded connection with the connecting flange, the other end of the cascading flange is provided with a first boss and a second boss, the first boss is used for arranging an optical lens, the second boss is used for arranging a sealing flange, and the sealing flange is arranged on the outer side of the optical lens and fixedly connected with the other end of the cascading flange and used for sealing two ends of the quartz tube; the vacuum air extraction valve is connected with the vacuum pump through an air extraction pipeline, the vacuum liquid injection/air valve is used for injecting a test medium, the vacuum gauge is used for measuring the pressure in the quartz tube, and the temperature controller is used for controlling the temperature of the quartz tube. The invention improves the testing capability of the system.
Description
Technical Field
The invention belongs to the technical field of optical communication, and particularly relates to an optical communication environment simulation test system which is suitable for space optical communication simulation test of simulation environments such as vacuum, gas, liquid and the like.
Background
Compared with the traditional microwave space communication mode, the optical communication, especially the space optical communication, has the advantages of high speed, confidentiality, interference resistance, high bandwidth, portability and the like. Because the space optical communication terminal is easy to receive the influence of various environments such as high-temperature deformation, gas vortex, liquid attenuation and the like when in optical communication, the main technical indexes of the space optical communication terminal are generally required to be strictly tested after the space optical communication terminal is developed.
However, in the prior art, there is no system capable of performing multiple environmental simulation tests on a terminal, for example, chinese patent application 201711252416.2 discloses a vacuum optical detection system, which can only simulate a vacuum environment to detect a space optical remote sensor, but cannot simulate and monitor other severe environments such as gas vortex, liquid attenuation, and oil-gas mixing, etc., so that a new optical communication environment simulation test system needs to be provided to realize multiple environmental simulation tests on a space laser communication terminal.
Disclosure of Invention
The invention overcomes the defects existing in the prior art, and solves the technical problems that: the optical communication environment simulation test system is wide in application range, diversified in test conditions and controllable.
In order to solve the technical problems, the invention adopts the following technical scheme: an optical communication environment simulation test system comprising: the vacuum gauge comprises a quartz tube, a vacuum gauge and a temperature controller, wherein both ends of the quartz tube are provided with limiting flanges, and the side surface of the quartz tube is provided with a vacuum air extraction valve and a vacuum liquid injection/air valve; connecting flanges are sleeved at two ends of the quartz tube, and the limiting flanges are used for limiting the connecting flanges; a cascade flange is arranged on the outer side of the limiting flange, and one end of the cascade flange is in threaded connection with the connecting flange; the other end of the cascade flange is provided with a first boss and a second boss, the first boss is used for arranging an optical lens, the second boss is used for arranging a sealing flange, and the sealing flange is arranged on the outer side of the optical lens and fixedly connected with the other end of the cascade flange and is used for sealing two ends of the quartz tube;
the vacuum air extraction valve is connected with the vacuum pump through an air extraction pipeline, the vacuum liquid injection/air valve is used for injecting a test medium, the vacuum gauge is used for measuring the pressure in the quartz tube, and the temperature controller is used for controlling the temperature of the quartz tube.
The two ends of the cascade flange are provided with threaded parts, the test system comprises a plurality of quartz tubes, and the quartz tubes are fixedly connected through the cascade flange; and the centers of the cascade flange and the sealing flange are respectively provided with a light-passing hole.
The periphery of one end of the cascade flange is provided with external threads, and one end of the connecting flange, which is close to the cascade flange, is provided with internal threads matched with the connecting flange.
The temperature controller comprises: the quartz tube heating device comprises a temperature sensor, a heating plate and a temperature control and measurement circuit, wherein the temperature sensor and the heating plate are arranged at different positions on the outer surface of the quartz tube, and the temperature control and measurement circuit is used for controlling the heating power of the heating plate according to the measured temperature of the temperature sensor.
The quartz tube is also provided with a protection convex hoop which is used for limiting the connecting flange so as to protect the vacuum air extraction valve and the vacuum liquid/gas injection valve.
And high-temperature-resistant sealing rings are arranged on both sides of the limiting flange and the optical lens.
The optical communication environment simulation test system also comprises an adjustable stand column support, wherein the adjustable stand column support comprises a base and a scale stand column, one end of the scale stand column is in threaded connection with the cascade flange, and the other end of the scale stand column is arranged in the base and is fixed through an adjusting screw arranged on the base.
The optical communication environment simulation test system further comprises a tee joint interface, one end of the tee joint interface is connected with the vacuum air extraction valve, the second end of the tee joint interface is connected with the vacuum pump, and the third end of the tee joint interface is connected with the vacuum gauge.
The second boss is provided with a plurality of screw holes, and the sealing flange is fixedly connected with the cascade flange through screws with the ends arranged in the screw holes.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention provides an optical communication environment simulation test system, which not only can realize optical communication test of vacuum environment, but also can realize optical communication test of optical equipment with different wavelengths under different gas concentrations and different liquid environments by arranging a vacuum air suction valve, a vacuum liquid injection/air valve, a temperature controller and a high-precision vacuum gauge on a quartz tube, further quantitatively verify the corresponding relation between the light transmittance and the communication efficiency of the optical equipment in different communication wave bands and the gas and liquid components, and provide precious reference data for the application design of the optical communication system, and can verify the application test capability of the existing optical system.
2. According to the invention, the connecting flange and the cascade flange are arranged on the quartz tube, so that the cascade connection of a plurality of quartz tubes can be realized on the premise of limited length of the existing single quartz tube, the cost is saved, the assembly type design is adopted, the testing distance of the system is expanded, and the quartz tube is easy to detach, clean, transfer and the like after the test.
3. According to the invention, the adjustable upright post bracket (with millimeter scale) is arranged at the bottom of the cascade flange, so that not only can quartz tubes be fixed and conveniently tested, but also the height of each quartz tube can be adjusted, and the adjustment difficulty of the device is simplified.
Drawings
FIG. 1 is a schematic diagram of an optical communication environment simulation test system according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of an optical communication environment simulation test system according to a first embodiment of the present invention;
FIG. 3 is a schematic view of a partial explosion of FIG. 1;
FIG. 4 is an enlarged schematic view of portion A of FIG. 1;
FIG. 5 is an enlarged schematic view of portion B of FIG. 1;
FIG. 6 is a schematic perspective view of a cascade flange according to an embodiment;
FIG. 7 is a schematic diagram of an overall optical system simulation test;
FIG. 8 is a schematic view of the sealing flange of FIG. 7;
FIG. 9 is a schematic diagram of an optical communication environment simulation test system according to a second embodiment of the present invention;
in the figure: 1 is a quartz tube, 2 is a vacuum air extraction valve, 3 is a vacuum liquid/air injection valve, 4 is a connecting flange, 5 is a cascade flange, 6 is a sealing flange, 7 is an optical lens, 8 is a high-temperature-resistant sealing ring, 9 is an adjustable upright post support, 10 is a protection convex hoop, 11 is a limit flange, 12 is a vacuum pump, 13 is a vacuum gauge, 14 is a temperature sensor, 15 is a heating plate, 16 is a temperature control and measurement circuit, 17 is a tee joint, 41 is a rotation hole, 51 is a threaded part, 52 is a first boss, 53 is a second boss, 54 is a screw hole, 61 is a communication interface, 91 is a base, 92 is a scale upright post, 93 is an adjusting screw, 94 is a measured light source system, 95 is a light source detection system, and 96 is a waterproof high-temperature-resistant communication cable.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1-2, an optical communication environment simulation test system provided in a first embodiment of the present invention includes: 2 quartz tubes 1, a vacuum gauge 13 and a temperature controller; the side surface of the quartz tube 1 is provided with a vacuum air extraction valve 2 and a vacuum liquid injection/air valve 3. The vacuum suction valve 2 is connected with the vacuum pump 12 through a suction pipeline, the vacuum liquid injection/gas valve 3 is used for injecting a test medium, such as test liquid or gas, the vacuum gauge 13 is used for measuring the pressure in the quartz tube 1, and the temperature controller is used for controlling the temperature of the quartz tube 1.
Specifically, as shown in fig. 3 to 6, in this embodiment, both ends of the quartz tube 1 are provided with limiting flanges 11, both ends of the quartz tube 1 are further sleeved with connecting flanges 4, and the limiting flanges 11 are used for limiting the connecting flanges 4; the outside of limiting flange 11 is provided with cascade flange 5, cascade flange 5 both ends all are provided with screw thread portion 51. And the centers of the cascade flange 5 and the sealing flange 6 are respectively provided with a light hole.
Specifically, in this embodiment, two quartz tubes 1 are fixedly connected through the cascade flange 5. Furthermore, cascade flanges 5 are also provided on the outside of the two quartz tubes 1. The cascade flange 5 between the two quartz tubes 1 is respectively in threaded connection with the connecting flange 4 on one quartz tube 1, so that the two quartz tubes 1 are fixedly connected together to form a cascade quartz tube. The cascade flanges 5 on the outer sides of the two quartz tubes 1 are also respectively connected with the corresponding connecting flanges 4 on the quartz tubes 1 by screw threads, and are further fixed on the quartz tubes 1.
Specifically, as shown in fig. 6, at least one end of the cascade flange 5 is provided with a first boss 52 and a second boss 53, the first boss 52 is used for setting an optical lens 7, and the second boss 53 is used for setting a sealing flange 6, in this embodiment, in the cascade flange 5 located outside the quartz tube 1, the second bosses 53 are all provided with the outermost ends, and the cascade flange 5 is provided with the sealing flange 6 and the optical lens 7, so that the outer ends of the two cascaded quartz tubes 1 can be sealed by setting the sealing flange 6 and the optical lens 7; on the cascade flange 5 between the two quartz tubes 1, a sealing flange 6 and an optical lens 7 may or may not be provided.
Specifically, in this embodiment, the outer circumferences of the two ends of the cascade flange 5 are both provided with external threads, and the outer end of the connecting flange 4 is provided with internal threads matched with the external threads. In this embodiment, the connection flange 4 is provided with a rotation stopping hole 41, after the connection flange 4 and the cascade flange 5 are screwed in place, a cap-free screw is screwed into the rotation stopping hole 41 with the screw, and after the cap-free screw abuts against the cascade flange 5, the connection flange 4 can be fixed against rotation relative to the cascade flange 5. Further, an internal thread may be provided on the cascade flange 5, and an external thread may be provided on the connection flange.
Specifically, as shown in fig. 1, the temperature controller includes: the quartz tube heating device comprises a temperature sensor 14, a heating plate 15 and a temperature control and measurement circuit 16, wherein the temperature sensor 14 and the heating plate 15 are arranged at different positions on the outer surface of the quartz tube 1, and the temperature control and measurement circuit 16 is used for controlling the heating power of the heating plate 15 according to the measured temperature of the temperature sensor 14.
Further, as shown in fig. 1, a protection collar 10 is further disposed on the quartz tube 1, and the protection collar 10 is used for limiting the connection flange 4 to protect the vacuum air extraction valve 2 and the vacuum liquid injection/air valve 3. Through limiting flange 11 and protection convex hoop 10, can carry out spacingly to flange 4, make the flange at quartz capsule 1 both ends can not follow quartz capsule 1 and fall down, also can not slide wantonly on the quartz capsule and lead to damaging vacuum pumping valve 2 and vacuum notes liquid/pneumatic valve 3.
Specifically, in this embodiment, the quartz tube 1 is made of a transparent quartz glass material, and the connection flange 4 and the cascade flange 5 are made of metal materials.
Further, as shown in fig. 4 to 5, high temperature resistant sealing rings 8 are arranged on both sides of the limiting flange 11 and the optical lens 7. The high temperature resistant sealing ring 8 can guarantee the sealing performance at the two ends of each quartz tube 1 on the one hand, and on the other hand can also prevent the damage that the rigid contact of limiting flange 11 and optical lens 7 of glass material and cascade flange 5 and flange 4 of metal material leads to, and moreover, the high temperature resistant material of high temperature resistant sealing ring 8 can guarantee the stability of test system in heating environment.
Further, as shown in fig. 1, the optical communication environment simulation test system of the present embodiment further includes an adjustable column support 9, where the adjustable column support 9 includes a base 91 and a scale column 92, one end of the scale column 92 is screwed with the cascade flange 5, and the other end is disposed in the base 91 and fixed by an adjusting screw 93 disposed on the base 91. Specifically, one end of the scale upright 92 is provided with threads, and the cascade flange 5 is provided with threaded holes, so that the scale upright 92 is fixedly connected with the cascade flange through threads. Through setting up adjustable stand support 9, can fix quartz capsule 1, its fixed height and angle can be adjusted moreover, and then make it keep the level, satisfy the test demand.
Further, as shown in fig. 6, in this embodiment, a plurality of screw holes 54 are provided on the second boss 53, and the sealing flange 6 is fixedly connected with the cascade flange 5 by screws whose ends are disposed in the screw holes 54.
Further, in this embodiment, the number of the quartz tubes 1 may be 3 or more, and the plurality of quartz tubes 1 may be fixedly connected together by the cascade flange 5. In this embodiment, through connecting a plurality of quartz tubes 1, can reduce the length of single quartz tube 1, the dismantlement and the washing of quartz tube 1 of being convenient for, moreover, test distance can expand according to the quantity of cascaded quartz tube 1, has improved test system's practicality.
During testing, the tested light source system 94 at one end of the analog testing device is an optical communication transmitting device, the optical transmitting device can simulate and transmit light rays with fixed power values, or periodic signals with fixed frequency, standard testing signals sent by the error code instrument can be optical signals with different spectrums, and the performance indexes of the designated optical communication system can be tested through the test instrument at the receiving end. The light source detection system 95 at the other end is a standard optical detection device, which can be an illuminance detector, a power detector, a spectrum detector or an optical digital receiver, and finally is switched to a code error meter or an oscilloscope for communication quality test.
The application method and the testing principle of the invention are as follows:
1. and (5) vacuum testing.
When the optical communication capability of the vacuum environment needs to be tested, only the vacuum liquid injection/gas valve 3 is closed, the vacuum pumping valve 2 is opened, the vacuum pump 12 is started, and when the vacuum gauge 13 displays that the vacuum pressure meets the vacuum degree testing condition, the tested light source system 94 and the corresponding light source detection system 95 can be respectively placed on two sides of the quartz tube 1 for optical communication testing.
2. And (6) testing the gas environment.
When the optical communication capability of a specific gas environment needs to be tested, the vacuum liquid injection/gas valve 3 is closed, the vacuum pumping valve 2 is opened, the vacuum pump 12 is started, and when the vacuum gauge 13 shows that the vacuum pressure meets the condition, the vacuum liquid injection/gas valve 3 is opened to be filled with gas until the vacuum gauge 13 shows that the gas pressure meets the gas concentration condition, and the tested light source system and the light source detection system 95 can be respectively placed on two sides of the quartz tube 1.
The specific conversion relation can be based on an ideal gas state equation:
P t V=nRT，（1）
P t for this gas pressure, the gas pressure can be converted from the vacuum gauge test results, V is the volume (quartz tube volume), n is the amount of gas species, and T is the thermodynamic temperature (thermocouple/platinum resistance sensor accurate measurement). R is a gas constant, and the values are different under different conditions.
The amount of gaseous material can in turn be expressed as:
n=CV； （2）
v is the volume (quartz tube volume), C is the gas concentration;
the absolute pressure of the gas can be expressed as:
Pt=P+P 0 ；（3）
wherein P represents the pressure value measured by the vacuum gauge, P 0 Representing the standard atmospheric pressure.
The comprehensive formulas (1) - (3) can be calculated to obtain:
C=（P+ P 0 ）/RT。 （4）
3. and (5) testing the liquid vapor environment.
When the optical communication capability of the liquid environment needs to be tested, the vacuum liquid injection/air valve 3 is opened until the liquid injection amount meets a set value, then the vacuum liquid injection/air valve 3 is closed, the vacuum air extraction valve 2 is opened, the vacuum pump 12 is started, when the vacuum gauge 13 displays that the vacuum pressure meets the condition, the temperature controller is opened, the quartz tube 1 is heated, so that the liquid in the quartz tube is gasified, and when the temperature of the quartz tube 1 is stabilized at the set temperature, the optical system 94 to be tested and the light source detection system 95 can be respectively placed on two sides of the quartz tube 1. The pressure of the liquid vapor in the quartz tube 1 can also be regulated by temperature. The relationship between temperature and gas pressure can be derived from equation (1).
4. And (5) testing the liquid environment.
When the optical communication capability of the pure liquid environment needs to be tested, the vacuum air suction valve 2 and the vacuum liquid injection/air valve 3 are opened, liquid is filled, the quartz tube 1 is filled with liquid, then the vacuum air suction valve 2 and the vacuum liquid injection/air valve 3 are closed, the temperature controller is opened, the quartz tube 1 is heated to a specified test temperature (not higher than the boiling point of the liquid), and then the tested light source system 94 and the light source detection system 95 can be respectively placed on two sides of the quartz tube 1 for optical testing.
5. The overall optical system simulates a test environment.
In addition, the optical communication environment simulation test system of the embodiment can also test the whole optical system. As shown in fig. 7, the light source system 94 under test and the light source detection system 95 may be integrally placed in the quartz tube 1. As shown in fig. 8, at this time, the sealing flanges 6 on two sides of the quartz tube need to be provided with corresponding communication interfaces 61 (sealing waterproof), and the tested light source system 94 and the light source detection system 95 are externally connected with the quartz tube 1 through waterproof high-temperature-resistant communication cables 96, so that the sealing vacuum environment and gas-liquid environment test of the whole system can be realized, and the test is not limited to the light path test. If the test is required, the diameter and the interface type of the quartz tube 1 are custom designed according to the tested optical system, and the quartz tube belongs to the derivative test item. In addition, the light source detecting system 95 may be disposed outside the other end of the quartz tube 1.
Example two
The same as the first embodiment, the optical communication environment simulation test system provided in the second embodiment of the present invention includes: quartz tube 1, vacuum gauge 13, temperature controller; the side surface of the quartz tube 1 is provided with a vacuum air extraction valve 2 and a vacuum liquid injection/air valve 3. The vacuum air extraction valve 2 is connected with the vacuum pump 12 through an air extraction pipeline, the vacuum liquid injection/air valve 3 is used for injecting test gas or liquid, the vacuum gauge 13 is used for measuring the gas pressure in the quartz tube 1, and the temperature controller is used for controlling the temperature of the quartz tube 1.
As shown in fig. 9, unlike the first embodiment, the present embodiment only includes one quartz tube 1, both ends of the quartz tube 1 are provided with limiting flanges 11, both ends of the quartz tube 1 are further sleeved with connecting flanges 4, and the limiting flanges 11 are used for limiting the connecting flanges 4; the outside of limiting flange 11 is provided with cascade flange 5, cascade flange 5 one end is provided with screw thread portion 51. The cascade flanges 5 are respectively connected with corresponding connecting flanges 4 on the quartz tube 1 in a threaded manner.
In this embodiment, only one end of the cascade flange 5 is provided with a first boss 52 and a second boss 53, the first boss 52 is used for setting the optical lens 7, and the second boss 53 is used for setting the sealing flange 6, specifically, in this embodiment, in two cascade flanges 5 located outside the quartz tube 1, the second bosses 53 are all provided with the outermost ends, and the cascade flanges 5 are all provided with the sealing flange 6 and the optical lens 7, and by setting the sealing flange 6 and the optical lens 7, both ends of the quartz tube 1 can be sealed.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (9)
1. An optical communication environment simulation test system, comprising: the vacuum infusion device comprises a quartz tube (1), a vacuum gauge (13) and a temperature controller, wherein limit flanges (11) are arranged at two ends of the quartz tube (1), and a vacuum air extraction valve (2) and a vacuum infusion/air valve (3) are arranged on the side face of the quartz tube; connecting flanges (4) are sleeved at two ends of the quartz tube (1), and the limiting flanges (11) are used for limiting the connecting flanges (4); a cascade flange (5) is arranged on the outer side of the limit flange (11), and one end of the cascade flange (5) is in threaded connection with the connecting flange (4); the other end of the cascade flange (5) is provided with a first boss (52) and a second boss (53), the first boss (52) is used for arranging an optical lens (7), the second boss (53) is used for arranging a sealing flange (6), and the sealing flange (6) is arranged on the outer side of the optical lens (7) and fixedly connected with the other end of the cascade flange (5) and used for sealing the two ends of the quartz tube (1);
the vacuum air extraction valve (2) is connected with the vacuum pump (12) through an air extraction pipeline, the vacuum liquid injection/air valve (3) is used for injecting a test medium, the vacuum gauge (13) is used for measuring the pressure in the quartz tube (1), and the temperature controller is used for controlling the temperature of the quartz tube (1).
2. The optical communication environment simulation test system according to claim 1, wherein the test system comprises a plurality of quartz tubes (1), and each quartz tube (1) is fixedly connected through the cascade flange (5); screw thread parts (51) are arranged at two ends of a cascade flange (5) between two quartz tubes (1), and light holes are formed in the centers of the cascade flange (5) and a sealing flange (6).
3. The optical communication environment simulation test system according to claim 1, wherein an outer periphery of one end of the cascade flange (5) is provided with an outer thread, and one end of the connecting flange (4) close to the cascade flange (5) is provided with an inner thread matched with the outer thread.
4. The optical communication environment simulation test system according to claim 1, wherein the temperature controller comprises: the heating device comprises a temperature sensor (14), a heating plate (15) and a temperature control and measurement circuit (16), wherein the temperature sensor (14) and the heating plate (15) are arranged at different positions on the outer surface of the quartz tube (1), and the temperature control and measurement circuit (16) is used for controlling the heating power of the heating plate (15) according to the measured temperature of the temperature sensor (14).
5. The optical communication environment simulation test system according to claim 1, wherein a protection convex hoop (10) is further arranged on the quartz tube (1), and the protection convex hoop (10) is used for limiting the connecting flange (4) so as to protect the vacuum pumping valve (2) and the vacuum liquid injection/air valve (3).
6. The optical communication environment simulation test system according to claim 1, wherein high-temperature-resistant sealing rings (8) are arranged on two sides of the limiting flange (11) and the optical lens (7).
7. The optical communication environment simulation test system according to claim 1, further comprising an adjustable column support (9), wherein the adjustable column support (9) comprises a base (91) and a scale column (92), one end of the scale column (92) is in threaded connection with the cascade flange (5), and the other end of the scale column (92) is arranged in the base (91) and is fixed through an adjusting screw (93) arranged on the base (91).
8. The optical communication environment simulation test system according to claim 1, further comprising a three-way interface (17), wherein one end of the three-way interface (17) is connected with the vacuum pumping valve (2), a second end is connected with the vacuum pump (12), and a third end is connected with the vacuum gauge (13).
9. The optical communication environment simulation test system according to claim 1, wherein a plurality of screw holes (54) are formed in the second boss (53), and the sealing flange (6) is fixedly connected with the cascade flange (5) through screws with ends arranged in the screw holes (54).
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