CN103354593A - Camera system applicable to vacuum and cryogenic environment - Google Patents
Camera system applicable to vacuum and cryogenic environment Download PDFInfo
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- CN103354593A CN103354593A CN2013102324706A CN201310232470A CN103354593A CN 103354593 A CN103354593 A CN 103354593A CN 2013102324706 A CN2013102324706 A CN 2013102324706A CN 201310232470 A CN201310232470 A CN 201310232470A CN 103354593 A CN103354593 A CN 103354593A
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Abstract
The invention discloses a camera system applicable to vacuum and cryogenic environment. The camera system comprises a seal case, a camera, a monitoring system, a heating system and a ventilation system. The camera is arranged inside the seal case; the front end of the seal case is made of transparent material; the side walls of the seal case are provided with a vacuum aviation plug, a ball-head joint pipe air-inlet mouth and a ball-head joint pipe air-outlet mouth; the vacuum aviation plug is connected with a power supply A and the monitoring system which are outside a vacuum chamber as well as the camera which is inside the seal case via cables respectively; the ball-head joint pipe air-inlet mouth and the ball-head joint pipe air-outlet mouth are connected with an air source and air which are outside the vacuum chamber via connection pipes respectively; a heating sheet is pasted onto the outside wall of the seal case and is rubber sealed; a power supply B, which is outside the vacuum chamber, is connected with the heating sheet via a cable; a thermocouple is pasted on the outside wall of seal case; and a signal line of the thermocouple is connected with the monitoring system outside the vacuum chamber. The advantages of the camera system are that: physical damage, caused by the vacuum environment, to electronic components and the like of the camera is prevented; and problem of low voltage discharge in the vacuum environment for the camera is solved.
Description
Technical field
The present invention relates to a kind of camera system, specifically, is a kind of camera system that is applicable to vacuum, cryogenic environment.
Background technology
Space flight is the embodiment of national science and technology level, country and international politics, economy, military affairs and social life are all produced extensively and far-reaching influence, in order to study the vacuum performance of rail control engine, many countries have all set up vacuum chamber, test with the simulates real Altitude.The vacuum chamber inwall is designed with the low-temperature deep pump to improve test vacuum degree, passes into the cryogenic liquids such as liquid nitrogen, and the combustion gas of engine ejection during with adsorption test improves test vacuum degree.
For observing the process of the test in the vacuum chamber, need to add camera system, but the vacuum chamber environment brings following two difficult problems can for the use of electronic equipment:
At first, high vacuum environment may make the internally explosions of sealing components and parts such as electrochemical capacitor, and the low-voltage discharge under the high vacuum environment also can damage electronic component simultaneously;
Secondly, after passing into the cryogenic liquid such as liquid nitrogen, low temperature environment also can make some components and parts of video camera lose efficacy.
Summary of the invention
In order to address the above problem, the present invention proposes a kind of camera system that is applicable to vacuum, cryogenic environment, has thoroughly solved the low-voltage discharge problem under the vacuum environment.
Camera system of the present invention comprises stuffing box, video camera, supervisory control system, and by heating plate, the thermocouple heating system that consists of and the air exchange system that is consisted of by bulb adapter suction nozzle, bulb adapter outlet nozzle.
Described stuffing box inside is used for arranging video camera, and the sealed compartment leading flank is transparent material, and camera lens is towards transparent material; Vacuum air plug and bulb are installed on the stuffing box sidewall take over suction nozzle and bulb adapter outlet nozzle; Wherein, the vacuum air plug links to each other with vacuum chamber power supply A, supervisory control system and stuffing box interior video cameras outward respectively by connection cable; Bulb is taken over suction nozzle and is connected vacuum chamber outer source of the gas and atmosphere by tube connector respectively with bulb adapter outlet nozzle.
Described heating plate sticks on the sealed compartment lateral wall, and by rubber seal; The outer power supply B of vacuum chamber links to each other with heating plate by connection cable; Thermocouple sticks on the stuffing box outer wall; The holding wire of thermocouple links to each other with vacuum chamber supervisory control system outward.
The invention has the advantages that:
1, camera system of the present invention has effectively avoided vacuum environment that electronic devices and components of video camera etc. are caused physical damage;
2, camera system of the present invention has thoroughly solved the low-voltage discharge problem of video camera under vacuum environment;
3, camera system of the present invention adds the temperature control part, and video camera is operated under the low temperature environment;
4, camera system of the present invention has ventilatory, but by temperature in the N2 circulation auxiliary adjustment sealed compartment, prevents that video camera from crossing coldly or overheated, still can regulate temperature in the sealed compartment after temperature control system loses efficacy;
5, camera system of the present invention is used N2 to fill sealed compartment and can be avoided forming on the observation window water smoke;
Description of drawings
Fig. 1 is camera system overall structure schematic diagram of the present invention.
Among the figure:
1-stuffing box 2-video camera 3-supervisory control system 4-heating plate
5-thermocouple 6-bulb is taken over suction nozzle 7-bulb and is taken over outlet nozzle 8-vacuum air plug
9-power supply A 10-power supply B 101-casing A 102-casing B
103-observation window 104-clamp A 105-clamp B 101a-annular flange flange A
102a-annular flange flange B 102b-annular flange flange C
Embodiment
The present invention will be further described below in conjunction with accompanying drawing.
Camera system of the present invention comprises stuffing box 1, video camera 2, supervisory control system 3, and by heating plate 4, thermocouple 5 heating system that consists of and the air exchange system that is consisted of by bulb adapter suction nozzle 6, bulb adapter outlet nozzle 7, as shown in Figure 1.
Described stuffing box 1 inside is used for arranging video camera 2, global shape conforms to video camera 2 profiles, size is greater than video camera 2 overall dimensions, comprise that casing A101, casing B102 and observation window 103 consist of, wherein, casing A101 is used for holding video camera 2 body parts, is the airtight tubular structure in bottom surface, and top week upwards has annular flange flange A101a.Casing B102 is used for holding video camera 2 camera lens parts, is similarly tubular structure, and diameter is less than casing A101 diameter; Casing B102 bottom week upwards has annular flange flange B102a, cooperate by between annular flange flange A101a and annular flange flange B102b, make casing B102 and the coaxial setting of casing A101, with fixing between annular flange flange A101a and annular flange flange B102a, realize fixing between casing A101 and casing B102 by clamp A104.The top of casing B102 circumferentially has annular flange flange C102b, has holddown groove on the annular flange flange C102b inner circumferential, observation window 103 cooperates with holddown groove in the embedding holddown groove, make holddown groove that observation window 103 is fixing by clamp B105, realize fixing between observation window 103 and casing B102, described observation window 103 adopts transparent material (as: glass) to make, over against video camera 2 camera lenses; Form thus whole stuffing box 1 structure.Have seal groove A on the mating surface of above-mentioned annular flange flange A101a or annular flange flange B102a, have seal groove B on the mating surface of holddown groove and observation window 103 among the annular flange flange C102c, thus by in seal groove A and seal groove B, elastic seal ring 106 being set, guarantee after casing A101, casing B102 and observation window 103 threes are connected and fixed the air-tightness of stuffing box 1 inside.
Described heating plate 4 sticks on sealed compartment 1 lateral wall, and heating plate 4 heating gross powers are 500W, is used for into sealed compartment 1 heating the video camera 2 in the sealed compartment 1 being operated under the normal temperature environment.Heating plate 4 is by the outer power supply B10 power supply of vacuum chamber, and the connection cable of power supply B10 links to each other with heating plate 4 by the crossing cabin flange.Thermocouple 5 is K type thermocouple, is used for controlling the heating-up temperature of heating plate 4, sticks on stuffing box 1 outer wall; The holding wire of thermocouple 5 links to each other by the outer supervisory control system 5 of crossing cabin flange and vacuum chamber; Gather the temperature signal that records of stuffing box 1 outer wall that thermocouples 5 record by supervisory control system 3, the temperature signal that collects and stuffing box 1 temperature threshold of supervisory control system 5 inner settings are compared, when temperature is higher than threshold value, then automatically control power supply B10 outage of supervisory control system 5, when heating-up temperature is lower than temperature threshold, then automatically control power supply B10 connection of supervisory control system 5 is heating plate 4 power supplies.Above-mentioned heating plate 4 prevents the vacuum low-voltage discharge by rubber seal.
Claims (5)
1. camera system that is applicable to vacuum, cryogenic environment, it is characterized in that: comprise stuffing box, video camera, supervisory control system, and by heating plate, the thermocouple heating system that consists of and the air exchange system that is consisted of by bulb adapter suction nozzle, bulb adapter outlet nozzle;
Described stuffing box inside is used for arranging video camera, and the sealed compartment leading flank is transparent material, and camera lens is towards transparent material; Vacuum air plug and bulb are installed on the stuffing box sidewall take over suction nozzle and bulb adapter outlet nozzle; Wherein, the vacuum air plug links to each other with vacuum chamber power supply A, supervisory control system and stuffing box interior video cameras outward respectively by connection cable; Bulb is taken over suction nozzle and is connected vacuum chamber outer source of the gas and atmosphere by tube connector respectively with bulb adapter outlet nozzle;
Described heating plate sticks on the sealed compartment lateral wall, and by rubber seal; The outer power supply B of vacuum chamber links to each other with heating plate by connection cable; Thermocouple sticks on the stuffing box outer wall; The holding wire of thermocouple links to each other with vacuum chamber supervisory control system outward.
2. a kind of camera system that is applicable to vacuum, cryogenic environment as claimed in claim 1, it is characterized in that: described stuffing box comprises that casing A, casing B and transparent material observation window consist of; Wherein, casing A is the airtight tubular structure in bottom surface, and top week upwards has annular flange flange A; Casing B diameter is less than casing A diameter; Casing B bottom week upwards has annular flange flange B, cooperates by between annular flange flange A and annular flange flange B, makes casing B and the coaxial setting of casing A, will be fixing between annular flange flange A and annular flange flange B by clamp A; The top of casing B circumferentially has annular flange flange C, has holddown groove on the annular flange flange C inner circumferential, and observation window cooperates with holddown groove in the embedding holddown groove, by clamp B holddown groove is fixed observation window.
3. a kind of camera system that is applicable to vacuum, cryogenic environment as claimed in claim 2 is characterized in that: have seal groove A on the mating surface of described annular flange flange A or annular flange flange B, have seal groove B among the annular flange flange C on the mating surface of holddown groove and observation window; In seal groove A and the seal groove B elastic seal ring is set.
4. a kind of camera system that is applicable to vacuum, cryogenic environment as claimed in claim 1, it is characterized in that: the temperature signal that records of the stuffing box outer wall that described supervisory control system collection thermocouple records, the temperature signal that collects and the stuffing box outside wall temperature threshold value of supervisory control system inner setting are compared, when temperature is higher than threshold value, then supervisory control system is controlled power supply B outage automatically, when heating-up temperature is lower than temperature threshold, then supervisory control system is controlled power supply B connection automatically, is the heating plate power supply.
5. a kind of camera system that is applicable to vacuum, cryogenic environment as claimed in claim 1, it is characterized in that: described bulb is taken over suction nozzle and is continued to pass into 1.5 atmospheric N to stuffing box 1 inside
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102324706A CN103354593A (en) | 2013-06-13 | 2013-06-13 | Camera system applicable to vacuum and cryogenic environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102324706A CN103354593A (en) | 2013-06-13 | 2013-06-13 | Camera system applicable to vacuum and cryogenic environment |
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| CN103354593A true CN103354593A (en) | 2013-10-16 |
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| CN2013102324706A Pending CN103354593A (en) | 2013-06-13 | 2013-06-13 | Camera system applicable to vacuum and cryogenic environment |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483807A (en) * | 2014-09-18 | 2015-04-01 | 哈尔滨工业大学 | Camera heat protector under near space environment |
| CN105635656A (en) * | 2014-10-31 | 2016-06-01 | 中国航空工业集团公司西安飞机设计研究所 | Shooting system applicable to non-standard atmosphere environment |
| CN106454211A (en) * | 2015-08-07 | 2017-02-22 | 北京卫星环境工程研究所 | Vacuum high-speed image photographing system for ground separation and experiment carrying-out of spacecraft component |
| CN106755857A (en) * | 2017-03-09 | 2017-05-31 | 南通天工深冷新材料强化有限公司 | A kind of deep freeze refrigeration plant transmural with visual window |
| CN111147726A (en) * | 2020-01-06 | 2020-05-12 | 北京卫星环境工程研究所 | Camera system for environment with variable temperature and pressure |
| CN111163251A (en) * | 2020-01-06 | 2020-05-15 | 北京卫星环境工程研究所 | Variable-view-angle camera system used in vacuum and high-low temperature environment |
| CN113411479A (en) * | 2021-06-17 | 2021-09-17 | 北京卫星环境工程研究所 | Camera device for vacuum, low-temperature and strong electromagnetic field environment |
| CN115857259A (en) * | 2023-02-22 | 2023-03-28 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Integrated camera lighting device for cryogenic environment |
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| US20020140848A1 (en) * | 2001-03-30 | 2002-10-03 | Pelco | Controllable sealed chamber for surveillance camera |
| CN2732752Y (en) * | 2004-06-07 | 2005-10-12 | 天津市三特电子有限公司 | Automatic cleaning device for viewing window of blast furnace |
| CN101135829A (en) * | 2007-10-12 | 2008-03-05 | 天津市亚安科技电子有限公司 | Positive-pressure type video camera lens protective cover |
| CN201837909U (en) * | 2010-08-31 | 2011-05-18 | 重庆市海普软件产业有限公司 | Intelligent temperature control protective box for outdoor monitoring equipment |
| CN102333186A (en) * | 2011-08-08 | 2012-01-25 | 上海交通大学 | High and low temperature resistant video monitoring device |
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2013
- 2013-06-13 CN CN2013102324706A patent/CN103354593A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020140848A1 (en) * | 2001-03-30 | 2002-10-03 | Pelco | Controllable sealed chamber for surveillance camera |
| CN2732752Y (en) * | 2004-06-07 | 2005-10-12 | 天津市三特电子有限公司 | Automatic cleaning device for viewing window of blast furnace |
| CN101135829A (en) * | 2007-10-12 | 2008-03-05 | 天津市亚安科技电子有限公司 | Positive-pressure type video camera lens protective cover |
| CN201837909U (en) * | 2010-08-31 | 2011-05-18 | 重庆市海普软件产业有限公司 | Intelligent temperature control protective box for outdoor monitoring equipment |
| CN102333186A (en) * | 2011-08-08 | 2012-01-25 | 上海交通大学 | High and low temperature resistant video monitoring device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483807A (en) * | 2014-09-18 | 2015-04-01 | 哈尔滨工业大学 | Camera heat protector under near space environment |
| CN105635656A (en) * | 2014-10-31 | 2016-06-01 | 中国航空工业集团公司西安飞机设计研究所 | Shooting system applicable to non-standard atmosphere environment |
| CN106454211A (en) * | 2015-08-07 | 2017-02-22 | 北京卫星环境工程研究所 | Vacuum high-speed image photographing system for ground separation and experiment carrying-out of spacecraft component |
| CN106755857A (en) * | 2017-03-09 | 2017-05-31 | 南通天工深冷新材料强化有限公司 | A kind of deep freeze refrigeration plant transmural with visual window |
| CN111147726A (en) * | 2020-01-06 | 2020-05-12 | 北京卫星环境工程研究所 | Camera system for environment with variable temperature and pressure |
| CN111163251A (en) * | 2020-01-06 | 2020-05-15 | 北京卫星环境工程研究所 | Variable-view-angle camera system used in vacuum and high-low temperature environment |
| CN111147726B (en) * | 2020-01-06 | 2022-03-04 | 北京卫星环境工程研究所 | Camera system for environment with variable temperature and pressure |
| CN113411479A (en) * | 2021-06-17 | 2021-09-17 | 北京卫星环境工程研究所 | Camera device for vacuum, low-temperature and strong electromagnetic field environment |
| CN115857259A (en) * | 2023-02-22 | 2023-03-28 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Integrated camera lighting device for cryogenic environment |
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Application publication date: 20131016 |