CN203941048U - A kind of mining gas sensor Standard Gases sample air distributing device - Google Patents
A kind of mining gas sensor Standard Gases sample air distributing device Download PDFInfo
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- CN203941048U CN203941048U CN201420292021.0U CN201420292021U CN203941048U CN 203941048 U CN203941048 U CN 203941048U CN 201420292021 U CN201420292021 U CN 201420292021U CN 203941048 U CN203941048 U CN 203941048U
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Abstract
The utility model provides a kind of mining gas sensor Standard Gases sample air distributing device, comprises housing, is arranged on the gentle nozzle assembly of transparent windows, supply socket, power switch, communication interface on housing, is arranged on tracheae assembly and circuit arrangement in housing; Valve assembly comprises 2 admission pieces and 1 outlet nozzle; Tracheae assembly comprises 2 draft tube and 1 threeway escape pipe; Circuit arrangement comprises control circuit board, power module, single chip processing module, RS485 communication module, LCD MODULE, infrared receiving module, the first gas mass flow controller, the second gas mass flow controller, DC fan and telepilot; During use, single chip processing module is controlled 2 gas mass flow controllers and is automatically mixed output and meet and required standard gas is set for corresponding gas sensor calibration, detects.The utility model is simple in structure, and cost is lower, easy to use; Distribution volume is little, precision is high, error is little, and automaticity is higher.
Description
Technical field
The utility model relates to sensor calibration device field, is specifically related to a kind of Standard Gases sample air distributing device of using for mining gas sensor calibration.
Background technology
The gas sensors such as methane, carbon monoxide, oxygen, carbon dioxide, sulfuretted hydrogen are widely used under coal mine, and various kinds of sensors generally all needs regularly by the Standard Gases sample of preparation, demarcated and checked before use with in use procedure.The Standard Gases sample that traditional calibration is used, conventionally adopt manual air distributing method to be manually configured, higher to distribution personnel's competency profiling in its operation and configuration effort process, personal error is larger, and there is many unsafe factors, cannot meet the needs to a large amount of Precision calibrations of gas sensor in coal production.
Utility model content
The purpose of this utility model is: a kind of mining gas sensor Standard Gases sample air distributing device simple in structure, lower-cost is provided; This device can mix any one gases such as methane, carbon monoxide, oxygen, carbon dioxide, sulfuretted hydrogen and air to be configured to the Standard Gases sample for calibration of any concentration while using automatically, so that corresponding gas sensor is carried out to calibration, distribution volume is little, precision is high, error is little, automaticity is higher, easy to use.
The technical solution of the utility model is: a kind of mining gas sensor Standard Gases sample air distributing device of the present utility model, and its design feature is: comprise housing, transparent windows, valve assembly, tracheae assembly and circuit arrangement;
Above-mentioned valve assembly comprises the first admission piece, the second admission piece and outlet nozzle; Tracheae assembly comprises the first draft tube, the second draft tube, the 3rd draft tube and threeway escape pipe; Circuit arrangement comprises control circuit board, power module, single chip processing module, RS485 communication module, LCD MODULE, infrared receiving module, the first gas mass flow controller, the second gas mass flow controller, DC fan and telepilot; LCD MODULE comprises liquid crystal display and driver module;
The gentle nozzle assembly sealing of above-mentioned transparent windows is fixedly mounted on housing; Liquid crystal display is fixedly mounted on the dead astern of transparent windows; Driver module and the infrared receiving module of the power module of circuit arrangement, single chip processing module, RS485 communication module, LCD MODULE are all arranged on control circuit board; The control circuit board of tracheae assembly and circuit arrangement, the first gas mass flow controller, the second gas mass flow controller and DC fan are all fixedly mounted in housing;
Above-mentioned single chip processing module is provided with control signal input end, display output terminal and communication ends; RS485 communication module is provided with first to fourth communication ends; The driver module of LCD MODULE is provided with signal input part and signal output part; Infrared receiving module is provided with infrared signal input end and signal output part; The first gas mass flow controller and the second gas mass flow controller are respectively equipped with communication ends, air intake opening and gas outlet; DC fan is provided with air intake opening and gas outlet; Telepilot is provided with infrared signal output terminal;
The control signal input end of single chip processing module is electrically connected to the signal output part signal of infrared receiving module; The display output terminal of single chip processing module is electrically connected to the signal input part signal of the driver module of LCD MODULE; The signal output part of the driver module of LCD MODULE is electrically connected to liquid crystal display signal; The communication ends of single chip processing module is electrically connected to the first communication ends two-way signaling of RS485 communication module; The second communication end of RS485 communication module is electrically connected to the communication ends two-way signaling of the first gas mass flow controller; The third communication end of RS485 communication module is electrically connected to the communication ends two-way signaling of the second gas mass flow controller; The infrared signal output terminal communicating wireless signals of the infrared signal input end of infrared receiving module and telepilot; Power module provides working power;
One end of the first draft tube of tracheae assembly is fixedly connected with the first admission piece of valve assembly; The other end of the first draft tube is fixedly connected with the air intake opening of the first gas mass flow controller; One end of the second draft tube is fixedly connected with the second admission piece; The other end of the second draft tube is fixedly connected with the air intake opening of DC fan; The 3rd one end of draft tube and the gas outlet of DC fan are fixedly connected with; The other end of the 3rd draft tube is fixedly connected with the air intake opening of the second gas mass flow controller; The gas outlet of the first gas mass flow controller is fixedly connected with first port of threeway escape pipe; The gas outlet of the second gas mass flow controller is fixedly connected with second port of threeway escape pipe; The 3rd port of threeway escape pipe is fixedly connected with outlet nozzle.
Further scheme is: also comprise the supply socket, power switch and the communication interface that are fixedly mounted on housing; Above-mentioned power switch is controlled and is electrically connected to supply socket; Communication interface is electrically connected to the 4th communication ends of RS485 communication module;
Above-mentioned power module is provided with power input, the first power output end and second source output terminal; The power input of power module is electrically connected to power switch; The first power output end output DC3.3V power supply of power module; The second source output terminal output DC24V power supply of power module; The first power output end of power module provides working power for single chip processing module, RS485 communication module, LCD MODULE and infrared receiving module; The second source output terminal of power module provides working power for the first gas mass flow controller, the second gas mass flow controller and DC fan.
Further scheme is: above-mentioned housing is square box body part; Housing comprises cover plate, left plate, right plate, back shroud and base plate; Cover plate is comprised of front side board and epipleural one, and front side board is connected with the vertical one of rear end face of epipleural by its upper surface; The middle and upper part of the front side board of cover plate is provided with front and back to the rectangle slotted eye connecting, as transparent windows mounting hole; Left plate, right plate, back shroud and base plate are the plate body that integral body is square; Before and after dividing, the downside of left plate is provided with 2 admission piece mounting holes; The middle and lower part of left plate is provided with supply socket mounting hole; The middle and upper part of left plate is provided with power switch mounting hole; The lower middle side part of right plate is provided with outlet nozzle mounting hole; The upper middle side part of right plate is provided with communication interface mounting hole; The cover plate of housing, left plate, right plate, back shroud and base plate are sealedly and fixedly connected by screw each other;
Above-mentioned transparent windows seals the transparent windows mounting hole place on the front side board that is fixedly mounted on cover plate; The first about admission piece of valve assembly is fixedly mounted on the admission piece mounting hole that is positioned at front side on the left plate of housing to sealing; The second about admission piece is fixedly mounted on the admission piece mounting hole that is positioned at rear side on the left plate of housing to sealing; About outlet nozzle is fixedly mounted on to sealing in the outlet nozzle mounting hole on the right plate of housing; Supply socket seals in the supply socket mounting hole of the left plate that is fixedly mounted on housing; Power switch seals in the power switch mounting hole of the left plate that is fixedly mounted on housing; Communication interface seals in the communication interface mounting hole of the right plate that is fixedly mounted on housing.
Further scheme also has: above-mentioned single chip processing module comprises the MCU of C8051F021 model; The first gas mass flow controller and the second gas mass flow controller are the gas mass flow controller of CS200 model.
The utlity model has positive effect: (1) mining gas sensor Standard Gases sample air distributing device of the present utility model, simple in structure, cost is lower, easy to use, and applicability is strong.(2) mining gas sensor Standard Gases sample air distributing device of the present utility model, during use, the gases such as methane, carbon monoxide, oxygen, carbon dioxide, sulfuretted hydrogen and air can be mixed to be configured to automatically the Standard Gases sample for calibration of any concentration, distribution volume is little, precision is high, error is little, and automaticity is higher.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the right view of Fig. 1;
Fig. 4 removes the vertical view after cover plate in Fig. 1;
Fig. 5 is electrical block diagram of the present utility model.
Reference numeral in above-mentioned accompanying drawing is as follows:
Housing 1, cover plate 11, left plate 12, right plate 13, back shroud 14, base plate 15,
Transparent windows 2,
Valve assembly 3, the first admission piece 31, the second admission pieces 32, outlet nozzle 33,
Supply socket 4,
Power switch 5,
Communication interface 6,
Tracheae assembly 7, the first draft tube 71, the second draft tube 72, the three draft tube 73, threeway escape pipe 74,
Circuit arrangement 8, control circuit board 80, power module 81, single chip processing module 82, RS485 communication module 83, LCD MODULE 84, liquid crystal display 84-1, infrared receiving module 85, the first gas mass flow controller 86, the second gas mass flow controllers 87, DC fan 88, telepilot 89.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
(embodiment 1)
See Fig. 1 to Fig. 5, the mining gas sensor Standard Gases sample air distributing device of the present embodiment, is mainly comprised of housing 1, transparent windows 2, valve assembly 3, tracheae assembly 4, supply socket 5, power switch 6, communication interface 7 and circuit arrangement 8.
Circuit arrangement 8 is mainly comprised of control circuit board 80, power module 81, single chip processing module 82, RS485 communication module 83, LCD MODULE 84, infrared receiving module 85, the first gas mass flow controller 86, the second gas mass flow controller 87, DC fan 88 and telepilot 89.
The material of housing 1 is stainless steel.Housing 1 is square box body part.Housing 1 is comprised of cover plate 11, left plate 12, right plate 13, back shroud 14 and base plate 15.Cover plate 11 is comprised of front side board and epipleural one, and front side board is connected with the vertical one of rear end face of epipleural by its upper surface.The middle and upper part of the front side board of cover plate 11 is provided with front and back to the rectangle slotted eye connecting, as transparent windows mounting hole.Left plate 12, right plate 13, back shroud 14 and base plate 15 are the plate body that integral body is square.Before and after dividing, the downside of left plate 12 is provided with 2 admission piece mounting holes; The middle and lower part of left plate 12 is provided with supply socket mounting hole; The middle and upper part of left plate 12 is provided with power switch mounting hole; The lower middle side part of right plate 13 is provided with outlet nozzle mounting hole; The upper middle side part of right plate 13 is provided with communication interface mounting hole.The cover plate 11 of housing 1, left plate 12, right plate 13, back shroud 14 and base plate 15 are sealedly and fixedly connected by screw each other.
The material of transparent windows 2 is explosion-proof organic glass.The shape of the transparent windows mounting hole on the front side board of the shape of transparent windows 2 and cover plate 11 adapts; The transparent windows mounting hole place that transparent windows 2 seals on the front side board that is fixedly mounted on cover plate 11.
Valve assembly 3 comprises the first admission piece 31, the second admission piece 32 and outlet nozzle 33.The first admission piece 31 left and right are fixedly mounted on the admission piece mounting hole that is positioned at front side on the left plate 12 of housing 1 to sealing; The second admission piece 32 left and right are fixedly mounted on the admission piece mounting hole that is positioned at rear side on the left plate 12 of housing 1 to sealing; Outlet nozzle 33 left and right are fixedly mounted on to sealing in the outlet nozzle mounting hole on the right plate 13 of housing 1.
Supply socket 4 is three-phase power socket, and supply socket 4 seals in the supply socket mounting hole of the left plate 12 that is fixedly mounted on housing 1.
Power switch 5 seals in the power switch mounting hole of the left plate 12 that is fixedly mounted on housing 1.Power switch 5 and supply socket 4 controlled and is electrically connected to, i.e. the switching on and off of the external power supply of power switch 5 control supply sockets 4.
Communication interface 6 seals in the communication interface mounting hole of the right plate 13 that is fixedly mounted on housing 1.Communication interface 6 is for external communication connection.
See Fig. 4, tracheae assembly 7 comprises the first draft tube 71, the second draft tube 72, the 3rd draft tube 73 and threeway escape pipe 74.
See Fig. 4 and Fig. 5, circuit arrangement 8 is mainly comprised of control circuit board 80, power module 81, single chip processing module 82, RS485 communication module 83, LCD MODULE 84, infrared receiving module 85, the first gas mass flow controller 86, the second gas mass flow controller 87, DC fan 88 and telepilot 89.LCD MODULE 84 comprises liquid crystal display 84-1 and driver module.
Driver module and the infrared receiving module 85 of power module 81, single chip processing module 82, RS485 communication module 83, LCD MODULE 84 are all arranged on control circuit board 80.Liquid crystal display 84-1 is fixedly mounted on the dead astern of transparent windows 2; Circuit arrangement 8 is all fixedly mounted in housing 1.
Power module 81 is provided with power input, the first power output end and second source output terminal; The power input of power module 81 is electrically connected to aforesaid power switch 5 by wire, during use by the external 220V alternating current of supply socket 4; The first power output end output DC3.3V power supply of power module 81; The second source output terminal output DC24V power supply of power module 81; The first power output end of power module 81 provides working power for single chip processing module 82, RS485 communication module 83, LCD MODULE 84 and infrared receiving module 85; The second source output terminal of power module 81 provides working power for the first gas mass flow controller 86, the second gas mass flow controller 87 and DC fan 88.
Single chip processing module 82 is provided with control signal input end, display output terminal and communication ends; RS485 communication module 83 is provided with first to fourth communication ends; The driver module of LCD MODULE 84 is provided with signal input part and signal output part; Infrared receiving module 85 is provided with infrared signal input end and signal output part; The first gas mass flow controller 86 and the second gas mass flow controller 87 are respectively equipped with communication ends, air intake opening and gas outlet; DC fan 88 is provided with air intake opening and gas outlet; Telepilot 89 is provided with infrared signal output terminal.
The control signal input end of single chip processing module 82 is electrically connected to the signal output part signal of infrared receiving module 85; The display output terminal of single chip processing module 82 is electrically connected to the signal input part signal of the driver module of LCD MODULE 84; The signal output part of the driver module of LCD MODULE 84 is electrically connected to liquid crystal display 84-1 signal; The communication ends of single chip processing module 82 is electrically connected to the first communication ends two-way signaling of RS485 communication module 83; The second communication end of RS485 communication module 83 is electrically connected to the communication ends two-way signaling of the first gas mass flow controller 86; The third communication end of RS485 communication module 83 is electrically connected to the communication ends two-way signaling of the second gas mass flow controller 87; The 4th communication ends of RS485 communication module 83 is electrically connected to aforesaid communication interface 6; The infrared signal output terminal communicating wireless signals of the infrared signal input end of infrared receiving module 85 and telepilot 89.
One end of the first draft tube 71 of tracheae assembly 7 is fixedly connected with the first admission piece 31 of valve assembly 3; The other end of the first draft tube 71 is fixedly connected with the air intake opening of the first gas mass flow controller 86; One end of the second draft tube 72 is fixedly connected with the second admission piece 32; The other end of the second draft tube 72 is fixedly connected with the air intake opening of DC fan 88; One end of the 3rd draft tube 73 is fixedly connected with the gas outlet of DC fan 88; The other end of the 3rd draft tube 73 is fixedly connected with the air intake opening of the second gas mass flow controller 87; The gas outlet of the first gas mass flow controller 86 is fixedly connected with first port of threeway escape pipe 74; The gas outlet of the second gas mass flow controller 87 is fixedly connected with second port of threeway escape pipe 74; The 3rd port of threeway escape pipe 74 is fixedly connected with outlet nozzle 33.
In the present embodiment, single chip processing module preferably adopts the MCU of the serial C8051F021 model of Xinhua dragon as core processor; The first gas mass flow controller 86 and the second gas mass flow controller 87 preferably adopt the gas mass flow controller of the CS200 model of Beijing Qixing Huachuang Electronics Co., Ltd.
(application examples)
The mining gas sensor Standard Gases sample air distributing device (aftermentioned abbreviation air distributing device) of previous embodiment, it first will be connected with the first admission piece 31 of the valve assembly 3 of air distributing device with treating the sources of the gas such as the corresponding methane of gas sensor, carbon monoxide, oxygen, carbon dioxide or sulfuretted hydrogen that calibration detects in use; The air inlet port for the treatment of the gas sensor that calibration detects is connected with outlet nozzle 33; Then by the external 220V alternating current of supply socket 4, turn on the power switch 5 and switch on power, the power module 81 output 2 road direct currents of circuit arrangement 8, air distributing device is started working:
By telepilot 89, information such as needing the Standard Gases sample concentration of configuration, gas sample massfraction, output gas sample concentration and flow is set, the configuration information that telepilot 89 sends is transferred to single chip processing module 82 through infrared receiving module 85, after single chip processing module 82 respective handling, the first gas mass flow controller 86 and the second gas mass flow controller 87 are carried out to corresponding initial setting up, after setting completes, DC fan 88 is to the interior suction air of the second gas mass flow controller 87; Source of the gas under self air pressure to the first gas mass flow controller 86 input calibrating gas; The blending ratio of the air of exporting at calibrating gas and second gas mass flow controller 87 of the calculating of single chip processing module 82 control the first gas mass flow controller 86 outputs automatically, by outlet nozzle 33, from trend, treat that the gas sensor that calibration detects exports satisfactory Standard Gases sample, for realizing the calibration to gas sensor.The liquid crystal display 84-1 of LCD MODULE 84 shows the relevant information in the course of work in real time.
In sum, mining gas sensor Standard Gases sample air distributing device of the present utility model, simple in structure, cost is lower, easy to use, and applicability is strong; During use, the gases such as methane, carbon monoxide, oxygen, carbon dioxide, sulfuretted hydrogen and air can be mixed to be configured to automatically the Standard Gases sample for calibration of any concentration, distribution volume is little, precision is high, error is little, and automaticity is higher.
Above embodiment and application examples are the explanations to embodiment of the present utility model; but not to restriction of the present utility model; person skilled in the relevant technique is not in the situation that departing from spirit and scope of the present utility model; can also make various conversion and variation and obtain the corresponding technical scheme being equal to, therefore all technical schemes that are equal to all should be included into scope of patent protection of the present utility model.
Claims (4)
1. a mining gas sensor Standard Gases sample air distributing device, is characterized in that: comprise housing (1), transparent windows (2), valve assembly (3), tracheae assembly (4) and circuit arrangement (8);
Described valve assembly (3) comprises the first admission piece (31), the second admission piece (32) and outlet nozzle (33); Tracheae assembly (7) comprises the first draft tube (71), the second draft tube (72), the 3rd draft tube (73) and threeway escape pipe (74); Circuit arrangement (8) comprises control circuit board (80), power module (81), single chip processing module (82), RS485 communication module (83), LCD MODULE (84), infrared receiving module (85), the first gas mass flow controller (86), the second gas mass flow controller (87), DC fan (88) and telepilot (89); LCD MODULE (84) comprises liquid crystal display (84-1) and driver module;
The gentle nozzle assembly of described transparent windows (2) (3) sealing is fixedly mounted on housing (1); Liquid crystal display (84-1) is fixedly mounted on the dead astern of transparent windows (2); The driver module of the power module (81) of circuit arrangement (8), single chip processing module (82), RS485 communication module (83), LCD MODULE (84) and infrared receiving module (85) are all arranged on control circuit board (80); The control circuit board (80) of tracheae assembly (4) and circuit arrangement (8), the first gas mass flow controller (86), the second gas mass flow controller (87) and DC fan (88) are all fixedly mounted in housing (1);
Described single chip processing module (82) is provided with control signal input end, display output terminal and communication ends; RS485 communication module (83) is provided with first to fourth communication ends; The driver module of LCD MODULE (84) is provided with signal input part and signal output part; Infrared receiving module (85) is provided with infrared signal input end and signal output part; The first gas mass flow controller (86) and the second gas mass flow controller (87) are respectively equipped with communication ends, air intake opening and gas outlet; DC fan (88) is provided with air intake opening and gas outlet; Telepilot (89) is provided with infrared signal output terminal;
The control signal input end of single chip processing module (82) is electrically connected to the signal output part signal of infrared receiving module (85); The display output terminal of single chip processing module (82) is electrically connected to the signal input part signal of the driver module of LCD MODULE (84); The signal output part of the driver module of LCD MODULE (84) is electrically connected to liquid crystal display (84-1) signal; The communication ends of single chip processing module (82) is electrically connected to the first communication ends two-way signaling of RS485 communication module (83); The second communication end of RS485 communication module (83) is electrically connected to the communication ends two-way signaling of the first gas mass flow controller (86); The third communication end of RS485 communication module (83) is electrically connected to the communication ends two-way signaling of the second gas mass flow controller (87); The infrared signal output terminal communicating wireless signals of the infrared signal input end of infrared receiving module (85) and telepilot (89); Power module (81) provides working power;
One end of first draft tube (71) of tracheae assembly (7) is fixedly connected with first admission piece (31) of valve assembly (3); The other end of the first draft tube (71) is fixedly connected with the air intake opening of the first gas mass flow controller (86); One end of the second draft tube (72) is fixedly connected with the second admission piece (32); The other end of the second draft tube (72) is fixedly connected with the air intake opening of DC fan (88); One end of the 3rd draft tube (73) is fixedly connected with the gas outlet of DC fan (88); The other end of the 3rd draft tube (73) is fixedly connected with the air intake opening of the second gas mass flow controller (87); The gas outlet of the first gas mass flow controller (86) is fixedly connected with first port of threeway escape pipe (74); The gas outlet of the second gas mass flow controller (87) is fixedly connected with second port of threeway escape pipe (74); The 3rd port of threeway escape pipe (74) is fixedly connected with outlet nozzle (33).
2. mining gas sensor Standard Gases sample air distributing device according to claim 1, is characterized in that: also comprise the supply socket (5), power switch (6) and the communication interface (7) that are fixedly mounted on housing (1); Described power switch (5) is controlled and is electrically connected to supply socket (4); Communication interface (7) is electrically connected to the 4th communication ends of RS485 communication module (83);
Described power module (81) is provided with power input, the first power output end and second source output terminal; The power input of power module (81) is electrically connected to power switch (5); The first power output end output DC3.3V power supply of power module (81); The second source output terminal output DC24V power supply of power module (81); The first power output end of power module (81) is that single chip processing module (82), RS485 communication module (83), LCD MODULE (84) and infrared receiving module (85) provide working power; The second source output terminal of power module (81) is that the first gas mass flow controller (86), the second gas mass flow controller (87) and DC fan (88) provide working power.
3. mining gas sensor Standard Gases sample air distributing device according to claim 2, is characterized in that: described housing (1) is square box body part; Housing (1) comprises cover plate (11), left plate (12), right plate (13), back shroud (14) and base plate (15); Cover plate (11) is comprised of front side board and epipleural one, and front side board is connected with the vertical one of rear end face of epipleural by its upper surface; The middle and upper part of the front side board of cover plate (11) is provided with front and back to the rectangle slotted eye connecting, as transparent windows mounting hole; Left plate (12), right plate (13), back shroud (14) and base plate (15) are the plate body that integral body is square; Before and after dividing, the downside of left plate (12) is provided with 2 admission piece mounting holes; The middle and lower part of left plate (12) is provided with supply socket mounting hole; The middle and upper part of left plate (12) is provided with power switch mounting hole; The lower middle side part of right plate (13) is provided with outlet nozzle mounting hole; The upper middle side part of right plate (13) is provided with communication interface mounting hole; The cover plate (11) of housing (1), left plate (12), right plate (13), back shroud (14) and base plate (15) are sealedly and fixedly connected by screw each other;
Described transparent windows (2) seals the transparent windows mounting hole place on the front side board that is fixedly mounted on cover plate (11); The about the first admission piece (31) of valve assembly (3) is fixedly mounted on the admission piece mounting hole that is positioned at front side on the left plate (12) of housing (1) to sealing; About the second admission piece (32) is fixedly mounted on the admission piece mounting hole that is positioned at rear side on the left plate (12) of housing (1) to sealing; About outlet nozzle (33) is fixedly mounted on to sealing in the outlet nozzle mounting hole on the right plate (13) of housing (1); Supply socket (4) seals in the supply socket mounting hole of the left plate (12) that is fixedly mounted on housing (1); Power switch (5) seals in the power switch mounting hole of the left plate (12) that is fixedly mounted on housing (1); Communication interface (6) seals in the communication interface mounting hole of the right plate (13) that is fixedly mounted on housing (1).
4. mining gas sensor Standard Gases sample air distributing device according to claim 1, is characterized in that: described single chip processing module (82) comprises the MCU of C8051F021 model; The first gas mass flow controller (86) and the second gas mass flow controller (87) are the gas mass flow controller of CS200 model.
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Cited By (1)
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CN112798740A (en) * | 2020-12-30 | 2021-05-14 | 天地(常州)自动化股份有限公司 | Detection system |
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CN112798740A (en) * | 2020-12-30 | 2021-05-14 | 天地(常州)自动化股份有限公司 | Detection system |
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Granted publication date: 20141112 |