CN108241006A - A kind of gas-sensitive property response curve test device with paddle - Google Patents
A kind of gas-sensitive property response curve test device with paddle Download PDFInfo
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- CN108241006A CN108241006A CN201810033525.3A CN201810033525A CN108241006A CN 108241006 A CN108241006 A CN 108241006A CN 201810033525 A CN201810033525 A CN 201810033525A CN 108241006 A CN108241006 A CN 108241006A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
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Abstract
The present invention discloses a kind of gas-sensitive property response curve test device with paddle, and sample stage bottom is equipped with heating plate, which is used to carry gas sensitive to be tested；Ring flange is equipped with the first air inlet pipe, the second air inlet pipe and air outlet pipe, wherein the outlet of the second air inlet pipe is terminated with universal ring pipe；Stirring stant is equipped in the inner cavity of inner cover, one group of driven magnet is circumferentially installed in the outer end of stirring stant, which is the magnet of N poles, and the periphery of driven magnet and the inner wall of inner cover are rotatably assorted；Stirring stant is coaxially installed with connecting shaft at center, and the both ends of the connecting shaft are distributed along the circumference with one group of paddle.This case is additionally arranged non-removable transparent inner cover, the inner cavity of the inner cover and outside realization are heat-insulated, can thus make gas sensitive to be tested and extraneous temperature isolation, so as to avoid influence of the ambient temperature to gas-sensitive property on the basis of existing structure.
Description
Technical field
The invention belongs to gas sensitive, gas sensor field more particularly to a kind of gas-sensitive property responses with paddle
Curve testing device, the present apparatus can also be used for and gas pressure and the relevant other field of component.
Background technology
Well-known to those skilled in the art to be, gas sensor is made of gas sensitive, for measure the type of gas,
Concentration and ingredient can detected the special component in gas, and by ingredient parameter transform into the device or device of electric signal,
Therefore also referred to as gas sensor.The application of gas sensor mainly has：The detection of CO gas, the detection of methane gas, coal
The detection of ethyl alcohol, the detection of human oral cavity halitosis etc. in the detection of gas, the detection of freon (R11, R12), expiration.
The gas-sensitive property response curve of gas sensitive is the important parameter of gas sensitive, it is related to the inspection of gas sensor
Precision is surveyed, and the factors such as gas-sensitive property response curve and temperature, light, gas purity are closely related.At present, usually by air-sensitive
Material is fixed on open rack, and is contacted with two electrodes with gas sensitive, and gas blow over gas sensitive surface or
Person's detected gas tests out the gas-sensitive property response curve of gas sensitive when surrounding gas sensitive as atmosphere.
In detection process, it has been found that there are following defects for the prior art：
1st, since existing test device is Open architecture, contacted with extraneous temperature, light and impurity, thus without
Method completely cuts off the influence of ambient temperature, light and impurity to gas-sensitive property, so as to cause the measuring accuracy of gas-sensitive property response curve
It is not high；
2nd, existing structure has gas absorption for Open architecture and gas sensitive, gas when resulting in testing in this way
In gas sensitive near surface state labile to be tested, randomness is big, and variation is irregular, results in test result confidence level in this way
It is low, test data poor repeatability, so that air-sensitive test is meaningless.
3rd, during academic research, it has been found that under some test environments, need near gas sensitive to be tested
Gas concentration and uniform temperature fields, in order to avoid gas concentration and temperature field is uneven that test is interfered and hindered, however it is existing
Technology can not solve.
The light of specific wavelength may be needed under the premise of shielding ambient temperature, light and impurity, to load when the 4, testing,
To study influence of the light to gas-sensitive property response curve, however the prior art can not meet the requirement of this technology at all.
Invention content
The technical problems to be solved by the invention are to provide a kind of gas-sensitive property response curve test dress with paddle
Put, the measuring accuracy and confidence level of gas-sensitive property response curve to be improved, and can make gas concentration near gas sensitive and
Uniform temperature fields.
Technical scheme is as follows：A kind of gas-sensitive property response curve test device with paddle, feature exist
In：Including sample stage (1) and inner cover (10), wherein sample stage (1) bottom is equipped with heating plate (2), the sample stage top surface
For carrying gas sensitive to be tested, and when the first probe (3) and the second probe (4) are tested with gas sensitive table to be tested
Face contacts, the two probes are separately mounted in corresponding mounting assembly, and sample stage (1) and adjusting part are installed in method
On blue disk (5)；The ring flange (5) is equipped with the first air inlet pipe (6), the second air inlet pipe (7) and air outlet pipe (8), wherein second
The outlet of air inlet pipe (7) is terminated with universal ring pipe (9), and the first air inlet pipe (6), the second air inlet pipe (7) are positioned at the sample
Above microscope carrier (1), universal ring pipe (9) is close to the top surface of the sample stage；
The inner cover (10) is translucent cover, which covers on sample stage (1), heating plate (2), the first probe (3), second
Outside probe (4), the first air inlet pipe (6), the second air inlet pipe (7), air outlet pipe (8) and universal ring pipe (9), and inner cover (10)
The periphery of openend and the ring flange (5) is fixed, and is sealed between inner cover (10) and ring flange (5) by o types circle (11)；Institute
It states and outer cover (12) is covered with outside inner cover (10), which is opaque cover, and the openend of inner cover (10) is removably
Fixed with the ring flange (5) periphery, and the outer wall of outer cover (12) be equipped with can be with the light load ports (12a) of open and close；Institute
It states and stirring stant (30) is equipped in the inner cavity of inner cover (10), one group of driven magnet is circumferentially installed in the outer end of stirring stant
(31), which is the magnet of N poles, and the periphery of driven magnet (31) and the inner wall rotation of inner cover (10) are matched
It closes；Connecting shaft (32) is coaxially installed at stirring stant (30) center, the both ends of the connecting shaft are distributed along the circumference with one group
Paddle (33)；Rotating turret (34), connecting pin and the driving electricity of the rotating turret are equipped between the inner cover (10) and outer cover (12)
The output shaft of machine (35) is connected, and can be rotated under driving motor (35) drive；The rotating turret (34) is circumferentially installed with master
Moving magnet (36), the active magnet (36) are corresponded with the paddle (33), and the magnet that active magnet (36) is S poles.
This case is additionally arranged non-removable transparent inner cover (10) on the basis of existing structure, the inner cover (10) it is interior
Chamber and outside realization are heat-insulated, can thus make gas sensitive to be tested and extraneous temperature isolation, so as to avoid ambient temperature pair
The influence of gas-sensitive property；Meanwhile demountable opaque outer cover is increased, ambient can be completely cut off in this way to air-sensitive spy
Property influence, and stablize gas sensitive near surface gaseous state to be tested, so as to improve the test of gas-sensitive property response curve
Accuracy and confidence, and the influence that ambient removes gas-sensitive property can be tested；In addition, outer cover is equipped with light load ports, in this way
The light of loading specific wavelength is facilitated, so as to provide possibility for influence of the research specific wavelength light to gas-sensitive property；And
And this case drives paddle to rotate by non-contacting mode, it is to be measured so as to make so as to stir gas and air in inner cover
Try gas sensitive near gas concentration and uniform temperature fields, and then avoid gas concentration and temperature field it is uneven to test cause
Interference and obstruction, and the temperature influence that contactless rotation formula tests air-sensitive is also smaller.
Preferably, the mounting assembly includes horizontal pendulum swing arm (13) and vertical pendulum swing arm (16), wherein horizontal hunting
Arm (13) one end is caught in the notch of pedestal (14), and is passed through the attachment screw (15) being vertically arranged and fixed with pedestal (14), should
Pedestal (14) is fixed on the ring flange (5), and horizontal pendulum swing arm (13) other end is provided with the U-shaped breach of up/down perforation；Institute
State and be caught in the U-shaped breach of horizontal pendulum swing arm (13) in the middle part of vertical pendulum swing arm (16), and pass through horizontally disposed pin (17) with
Horizontal pendulum swing arm (13) connects, and is connected with adjusting screw (18) at the top of vertical pendulum swing arm, the tail portion of the adjusting screw with it is described
Horizontal pendulum swing arm (13) top surface contacts；Horizontal pendulum swing arm (13) bottom is opened there are one mounting hole, first probe (3) or
Second probe (4) is locked across after this mounting hole by the lock-screw (19) on horizontal pendulum swing arm (13).
Using above technical scheme, this case can easily adjust position and the application of the first probe (3) or the second probe (4)
To the pressure of gas sensitive to be tested, and the structure of mounting assembly is simple, easy to adjust, laborsaving.
Preferably, the stirring stant (30) is " ten " character form structure, four free ends of the stirring stant are solid respectively
If there are one the driven magnets (31).Using the above structure, under the premise of rotary balance is ensured, simplify knot as much as possible
Structure.
In the present case, the inner cover (10) is quartz cover, and the outer cover (12) is ceramic shield, and the heating plate (2) is
Ceramic heating flake.In the above-mentioned technical solutions, the light-proofness of ceramic shield is good, can effectively realize shading.
Advantageous effect：This case is additionally arranged non-removable transparent inner cover (10), the inner cover on the basis of existing structure
(10) inner cavity and outside realization are heat-insulated, can thus make gas sensitive to be tested and extraneous temperature isolation, outer so as to avoid
Influence of boundary's temperature to gas-sensitive property；Meanwhile demountable opaque outer cover is increased, ambient can be completely cut off in this way
Influence to gas-sensitive property, and stablize gas sensitive near surface gaseous state to be tested, it is bent so as to improve gas-sensitive property response
The measuring accuracy and confidence level of line, and the influence that ambient removes gas-sensitive property can be tested；In addition, outer cover is loaded equipped with light
Mouthful, it, can so as to be provided for influence of the research specific wavelength light to gas-sensitive property thus convenient for the light of loading specific wavelength
It can property；Also, this case drives paddle to rotate by non-contacting mode, so as to stir gas and air in inner cover, from
And make the gas concentration and uniform temperature fields near gas sensitive to be tested, and then avoid gas concentration and temperature field uneven right
Test is interfered and is hindered, and the temperature influence that contactless rotation formula tests air-sensitive is also smaller.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is that test cell removes the axonometric drawing after the components such as outer cover and driving motor in Fig. 1.
Fig. 3 removes the schematic diagram after inner cover for Fig. 2.
Fig. 4 is the cooperation schematic diagram of driven magnet and active magnet in Fig. 2.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples：
Such as Fig. 1 -- shown in 4, a kind of gas-sensitive property response curve test device with paddle, including sample stage 1 and interior
Cover 10, wherein 1 bottom of sample stage are equipped with heating plate 2, which is used to carry gas sensitive to be tested, and
Heating plate 2 is ceramic heating flake.First probe 3 and the second probe 4 are existing structure, during test the two probes with it is to be tested
Gas sensitive surface contacts, the two probes are separately mounted in corresponding mounting assembly, and sample stage 1 and adjusting part are equal
On ring flange 5.First probe 3 and the second probe 4 are connected respectively by corresponding lead with measuring instrument, connection side
Formula is existing structure, and details are not described herein, and ring flange 5 is equipped with lead via.
In the present case, mounting assembly includes horizontal pendulum swing arm 13, wherein vertical pendulum swing arm 16,13 one end card of horizontal pendulum swing arm
In the notch for entering pedestal 14, and pass through the attachment screw 15 being vertically arranged and fixed with pedestal 14, which is fixed on ring flange 5
On, and 13 other end of horizontal pendulum swing arm is provided with the U-shaped breach of up/down perforation.In the present case, 14 tail portion of pedestal passes through insulation sleeve (figure
In be not drawn into) be a tight fit in the mounting hole on ring flange 5, to prevent the short circuit of the electric signal of two probes, ensure to be smoothed out
Gas-sensitive property response curve is tested.16 middle part of vertical pendulum swing arm is caught in the U-shaped breach of horizontal pendulum swing arm 13, and pass through level and set
The pin 17 put is connect with horizontal pendulum swing arm 13, and adjusting screw 18, the tail of the adjusting screw are connected at the top of vertical pendulum swing arm
Portion is contacted with 13 top surface of horizontal pendulum swing arm.It opens there are one mounting hole, the first probe 3 or the second probe 4 13 bottom of horizontal pendulum swing arm
Across after this mounting hole, locked by the lock-screw 19 on horizontal pendulum swing arm 13.
Ring flange 5 is equipped with the first air inlet pipe 6, the second air inlet pipe 7 and air outlet pipe 8, wherein the outlet side of the second air inlet pipe 7
Universal ring pipe 9 is connected to, and the outlet side of universal ring pipe 9 is horn mouth.First air inlet pipe 6, the second air inlet pipe 7 are located at sample
1 top of microscope carrier, for universal ring pipe 9 close to the top surface of sample stage 1, the outlet side of universal ring pipe 9 is flat.Air outlet pipe 8
Positioned at 1 lower section of sample stage, and the first air inlet pipe 6, the second air inlet pipe 7 and air outlet pipe 8 are located at the homonymy of ring flange 5.Static method
The first air inlet pipe 6 and the second air inlet pipe 7 can be used during test, dynamic method can only use the second air inlet pipe 7 when testing.
As shown in Fig. 1,2 and 3 and 4, inner cover 10 is translucent cover, and preferably quartz cover.Inner cover 10 cover on sample stage 1,
Heating plate 2, the first probe 3, the second probe 4, the first air inlet pipe 6,9 outside of the second air inlet pipe 7, air outlet pipe 8 and universal ring pipe,
And the openend of inner cover 10 and the periphery of ring flange 5 are fixed, and are sealed between inner cover 10 and ring flange 5 by o types circle 11, in this way
It just can utmostly realize that the temperature of 10 inner cavity of inner cover and outside completely cuts off.
The outside of inner cover 10 is covered with outer cover 12, which is opaque cover, and preferably ceramic shield.The opening of inner cover 10
End removably fixed with 5 periphery of ring flange, and the outer wall of outer cover 12 be equipped with can be with the light load ports of open and close
12a opens light load ports 12a when needing to load the light of specific wavelength, and the light of loading thus can through inner cover 10
Study influence of the specific wavelength light to gas sensitive gas-sensitive property.It should be noted that it needs to grind in certain testing situations
Study carefully interference of the ambient to gas-sensitive property, at this moment just need to remove outer cover 12.
Stirring stant 30 is equipped in the inner cavity of inner cover 10, one group of driven magnet is circumferentially installed in the outer end of stirring stant
31, which is the magnet of N poles, and the periphery of driven magnet 31 and the inner wall of inner cover 10 are rotatably assorted.Stirring
Connecting shaft 32 is coaxially installed at 30 center of stent, the both ends of the connecting shaft are distributed along the circumference with one group and mix leaf 33.Inner cover 10 with
Between outer cover 12 be equipped with rotating turret 34, the connecting pin of the rotating turret with output shaft be connected, and can driving motor 35 drive under
Rotation.Rotating turret 34 is circumferentially installed with active magnet 36, which corresponds with paddle 33, and active magnet
36 be the magnet of S poles.Stirring stant 30 be " ten " character form structure, the stirring stant four free ends difference it is fixed there are one from
Moving magnet 31.
When driving motor 33 starts, rotating turret 32 is driven to rotate, the rotating turret 32 of rotation drives active magnet 34 together
Rotation, active magnet 34 drive driven magnet 31 to rotate by magnetism, and then drive the rotation stirring of paddle 33.
As shown in Fig. 1,2 and 3, sample stage 1, heating plate 2, the first probe 3, the second probe 4, ring flange 5, the first air inlet
Pipe 6, the second air inlet pipe 7, air outlet pipe 8, universal ring pipe 9, inner cover 10, o types circle 11, outer cover 12 and mounting assembly form a survey
Unit, the horizontal equidistant interval setting of 4 test cells are tried, the ring flange 5 of each test cell is fixed on riser 20, and riser
20 bottoms are fixed with 21 top surface of horizonal base plate.When manufacturing gas sensitive, usually batch micro operations more than one piece, due to the gas of gas sensitive
Quick characteristic can change as time went on, therefore this case may be used 4 test cells while measure 4 samples, so as to drop
The adverse effect that the low time tests gas-sensitive property, effect are not to improve detection efficiency, therefore this design is not conventional sets
Meter, it is creative.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not limitation with the present invention, all in essence of the invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of gas-sensitive property response curve test device with paddle, it is characterised in that：Including sample stage (1) and inner cover
(10), wherein sample stage (1) bottom is equipped with heating plate (2), which is used to carry gas sensitive to be tested,
And contacted when the first probe (3) and the second probe (4) test with gas sensitive surface to be tested, the two probes are installed respectively
In corresponding mounting assembly, and sample stage (1) and adjusting part are installed on ring flange (5)；On the ring flange (5)
Equipped with the first air inlet pipe (6), the second air inlet pipe (7) and air outlet pipe (8), wherein the outlet of the second air inlet pipe (7) be terminated with it is universal
Ring pipe (9), and the first air inlet pipe (6), the second air inlet pipe (7) are positioned at the sample stage (1) top, universal ring pipe (9)
Close to the top surface of the sample stage；
The inner cover (10) is translucent cover, which covers on sample stage (1), heating plate (2), the first probe (3), the second probe
(4), outside the first air inlet pipe (6), the second air inlet pipe (7), air outlet pipe (8) and universal ring pipe (9), and the opening of inner cover (10)
The periphery with the ring flange (5) is held to fix, is sealed between inner cover (10) and ring flange (5) by o types circle (11)；In described
Be covered with outer cover (12) outside cover (10), which is opaque cover, and the openend of inner cover (10) removably with institute
Ring flange (5) periphery is stated to fix, and the outer wall of outer cover (12) be equipped with can be with the light load ports (12a) of open and close；In described
It covers and stirring stant (30) is equipped in the inner cavity of (10), one group of driven magnet (31) is circumferentially installed in the outer end of stirring stant,
The driven magnet (31) is the magnet of N poles, and the periphery of driven magnet (31) and the inner wall of inner cover (10) are rotatably assorted；Institute
It states and connecting shaft (32) is coaxially installed at stirring stant (30) center, the both ends of the connecting shaft are distributed along the circumference with one group of paddle
(33)；Rotating turret (34), connecting pin and the driving motor (35) of the rotating turret are equipped between the inner cover (10) and outer cover (12)
Output shaft be connected, and lower rotation can be driven in driving motor (35)；The rotating turret (34) is circumferentially installed with active magnet
(36), which corresponds with the paddle (33), and the magnet that active magnet (36) is S poles.
2. the gas-sensitive property response curve test device according to claim 1 with paddle, it is characterised in that：The peace
Arrangement includes horizontal pendulum swing arm (13) and vertical pendulum swing arm (16), and wherein horizontal pendulum swing arm (13) one end is caught in pedestal (14)
In notch, and pass through the attachment screw (15) being vertically arranged and fixed with pedestal (14), which is fixed on the ring flange
(5) on, and horizontal pendulum swing arm (13) other end is provided with the U-shaped breach of up/down perforation；It is caught in the middle part of the vertical pendulum swing arm (16)
In the U-shaped breach of horizontal pendulum swing arm (13), and pass through horizontally disposed pin (17) and connect with horizontal pendulum swing arm (13), vertical
Adjusting screw (18) is connected at the top of swing arm, the tail portion of the adjusting screw is contacted with horizontal pendulum swing arm (13) top surface；Institute
It states horizontal pendulum swing arm (13) bottom and opens that there are one mounting hole, first probe (3) or the second probes (4) across this mounting hole
Afterwards, it is locked by the lock-screw (19) on horizontal pendulum swing arm (13).
3. the gas-sensitive property response curve test device according to claim 1 with paddle, it is characterised in that：It is described to stir
Stent (30) is mixed as " ten " character form structure, four free ends difference of the stirring stant is fixed, and there are one the driven magnets
(31)。
4. the gas-sensitive property response curve test device according to claim 1 with paddle, it is characterised in that：In described
It is quartz cover to cover (10), and the outer cover (12) is ceramic shield, and the heating plate (2) is ceramic heating flake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810033525.3A CN108241006B (en) | 2018-01-11 | 2018-01-11 | Gas-sensitive characteristic response curve testing device with stirring blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810033525.3A CN108241006B (en) | 2018-01-11 | 2018-01-11 | Gas-sensitive characteristic response curve testing device with stirring blades |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108241006A true CN108241006A (en) | 2018-07-03 |
| CN108241006B CN108241006B (en) | 2023-05-12 |
Family
ID=62699629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810033525.3A Active CN108241006B (en) | 2018-01-11 | 2018-01-11 | Gas-sensitive characteristic response curve testing device with stirring blades |
Country Status (1)
| Country | Link |
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| CN (1) | CN108241006B (en) |
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|---|---|
| CN108241006B (en) | 2023-05-12 |
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