CN107677629A - A kind of gas sensor calibration experimental system - Google Patents
A kind of gas sensor calibration experimental system Download PDFInfo
- Publication number
- CN107677629A CN107677629A CN201711181600.2A CN201711181600A CN107677629A CN 107677629 A CN107677629 A CN 107677629A CN 201711181600 A CN201711181600 A CN 201711181600A CN 107677629 A CN107677629 A CN 107677629A
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- Prior art keywords
- water bath
- constant temperature
- temperature water
- bath apparatus
- gas
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001745 non-dispersive infrared spectroscopy Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of gas sensor calibration experimental system, it includes：Gas bottle, vavuum pump, constant temperature water bath apparatus, data collecting card and upper main frame, the output of wherein gas bottle and vavuum pump is respectively connected on constant temperature water bath apparatus, pressure gauge, pressure-reducing valve and precision pressure gauge are sequentially provided between gas bottle and constant temperature water bath apparatus, subject sensor is provided with the constant temperature water bath apparatus, upper main frame is connected on constant temperature water bath apparatus by data collecting card.Gas sensor calibration experimental system of the present invention, the demarcation of the sensor under different in flow rate, temperature and pressure effect is realized using the circulating pump in test system, insulating box and pressure-reducing valve etc..By experimental data processing, obtaining flow velocity influences very little to sensor accuracy and have modified degree of accuracy influence of the temperature on sensor.
Description
Technical field
The present invention relates to a kind of gas sensor calibration experimental system.
Background technology
SF6 is that one kind is colourless, odorless, substantially nontoxic, non-combustible, is seldom dissolved in water, the highly stable gas of chemical property,
It is the preferable tracer for detecting mine air leakage situation.New SF6 infrared-gas is based on advanced NDIR spectral absorption skill
Art development, the sensor be sensor be substantially detection gas mass concentration and China's coal-mine gas detecting instrument
Instrument, all using the method for expressing of volumetric concentration, so needing mass concentration being converted into volumetric concentration.The mass concentration of gas
Pressure, temperature with tested gas etc. are closely related, it is therefore necessary to which pressure, temperature to the new SF6 gas sensors etc. are entered
Line identifier.
The content of the invention
Based on above-mentioned technical problem, the present invention proposes a kind of gas sensor calibration experimental system.
A kind of gas sensor calibration experimental system of the present invention, it includes：Gas bottle, vavuum pump, water bath with thermostatic control dress
Put, data collecting card and upper main frame, the output of wherein gas bottle and vavuum pump are respectively connected on constant temperature water bath apparatus, collection
Pressure gauge, pressure-reducing valve and precision pressure gauge are sequentially provided between gas cylinder and constant temperature water bath apparatus, is set in the constant temperature water bath apparatus
There is subject sensor, upper main frame is connected on constant temperature water bath apparatus by data collecting card.
Preferably, connection by pressure vacuum gauge, is opened between pressure vacuum gauge and vavuum pump provided with second on the vavuum pump
Close valve.
Preferably, it is sequentially provided with first switch valve between the gas bottle and pressure gauge.
Preferably, the external delivery pipe of the constant temperature water bath apparatus, the delivery pipe are connected to constant temperature water bath apparatus
Input/output terminal.
Preferably, filter, safety valve, line sensor are sequentially provided with delivery pipe.
Preferably, pump is provided between the filter and safety valve.
Preferably, the input/output terminal of the line sensor is respectively equipped with a flowmeter.
Gas sensor calibration experimental system of the present invention, utilizes the circulating pump in test system, insulating box and decompression
Valve etc. realizes the demarcation of sensor different in flow rate, under temperature and pressure effect.By experimental data processing, flow velocity is obtained to passing
The sensor degree of accuracy influences very little and have modified degree of accuracy influence of the temperature on sensor.
Brief description of the drawings
Fig. 1 is system structure diagram of the present invention.
1- gas bottles；2- vavuum pumps；3- constant temperature water bath apparatus；4- data collecting cards；The upper main frames of 5-.
Embodiment
Embodiment 1.
A kind of gas sensor calibration experimental system of the present invention, it includes：Gas bottle 1, vavuum pump 2, water bath with thermostatic control
Device 3, data collecting card 4 and upper main frame 5, the wherein output of gas bottle 1 and vavuum pump 2 are respectively connected to water bath with thermostatic control dress
Put on 3, pressure gauge, pressure-reducing valve and precision pressure gauge, the thermostatted water are sequentially provided between gas bottle 1 and constant temperature water bath apparatus 3
Subject sensor is provided with bath apparatus 3, upper main frame 5 is connected on constant temperature water bath apparatus 3 by data collecting card 4.
Connection is provided with second switch valve by pressure vacuum gauge on the vavuum pump 2 between pressure vacuum gauge and vavuum pump 2.
First switch valve is sequentially provided between the gas bottle 1 and pressure gauge.
Described 3 external delivery pipes of constant temperature water bath apparatus, the input that the delivery pipe is connected to constant temperature water bath apparatus 3 are defeated
Go out end.
Filter, safety valve, line sensor are sequentially provided with delivery pipe.
Pump is provided between the filter and safety valve.
Preferably, the input/output terminal of the line sensor is respectively equipped with a flowmeter.
The present invention utilizes original foreign gas in the extraction system of vavuum pump 2, injects gas after extraction into system again, past
Extract 3 times again, after removing foreign gas is filled with gas, by depressurizing valve control system internal pressure, sets calorstat temperature, open
Circulating pump regulating system internal gas flow velocity is opened, controls pressure-reducing valve, insulating box and circulating pump to control respectively by upper main frame 5
Pressure, temperature and flow velocity in system and regulating system, assign their different numerical value and just obtained sensor under different condition
Output valve just completes the demarcation test to SF6 gas sensors according to the method described above.
Claims (7)
- A kind of 1. gas sensor calibration experimental system, it is characterised in that including：Gas bottle, vavuum pump, constant temperature water bath apparatus, number According to capture card and upper main frame, the output of wherein gas bottle and vavuum pump is respectively connected on constant temperature water bath apparatus, gas bottle It is sequentially provided with pressure gauge, pressure-reducing valve and precision pressure gauge between constant temperature water bath apparatus, is provided with the constant temperature water bath apparatus pair Image sensor, upper main frame are connected on constant temperature water bath apparatus by data collecting card.
- A kind of 2. gas sensor calibration experimental system as claimed in claim 1, it is characterised in that on the vavuum pump connection by Pressure vacuum gauge, second switch valve is provided between pressure vacuum gauge and vavuum pump.
- 3. a kind of gas sensor calibration experimental system as claimed in claim 1, it is characterised in that the gas bottle and pressure gauge Between be sequentially provided with first switch valve.
- 4. a kind of gas sensor calibration experimental system as claimed in claim 1, it is characterised in that outside the constant temperature water bath apparatus A delivery pipe is connect, the delivery pipe is connected to the input/output terminal of constant temperature water bath apparatus.
- 5. a kind of gas sensor calibration experimental system as claimed in claim 1, it is characterised in that be sequentially provided with delivery pipe Filter, safety valve, line sensor.
- 6. a kind of gas sensor calibration experimental system as claimed in claim 1, it is characterised in that the filter and safety valve Between be provided with pump.
- A kind of 7. gas sensor calibration experimental system as claimed in claim 1, it is characterised in that the line sensor it is defeated Enter output end and be respectively equipped with a flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711181600.2A CN107677629A (en) | 2017-11-23 | 2017-11-23 | A kind of gas sensor calibration experimental system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711181600.2A CN107677629A (en) | 2017-11-23 | 2017-11-23 | A kind of gas sensor calibration experimental system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107677629A true CN107677629A (en) | 2018-02-09 |
Family
ID=61150162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711181600.2A Withdrawn CN107677629A (en) | 2017-11-23 | 2017-11-23 | A kind of gas sensor calibration experimental system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107677629A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296952A (en) * | 2019-08-02 | 2019-10-01 | 中国矿业大学(北京) | A kind of gas sensor calibration device and scaling method |
| CN112162012A (en) * | 2020-09-07 | 2021-01-01 | 天地（常州）自动化股份有限公司 | Automatic calibration device and automatic calibration method for gas sensing module |
| CN112557606A (en) * | 2021-02-28 | 2021-03-26 | 中国工程物理研究院核物理与化学研究所 | Auxiliary device special for measuring performance parameters of gas detector |
-
2017
- 2017-11-23 CN CN201711181600.2A patent/CN107677629A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296952A (en) * | 2019-08-02 | 2019-10-01 | 中国矿业大学(北京) | A kind of gas sensor calibration device and scaling method |
| CN112162012A (en) * | 2020-09-07 | 2021-01-01 | 天地（常州）自动化股份有限公司 | Automatic calibration device and automatic calibration method for gas sensing module |
| CN112162012B (en) * | 2020-09-07 | 2024-05-17 | 天地（常州）自动化股份有限公司 | Automatic calibration device and automatic calibration method for gas sensing module |
| CN112557606A (en) * | 2021-02-28 | 2021-03-26 | 中国工程物理研究院核物理与化学研究所 | Auxiliary device special for measuring performance parameters of gas detector |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180209 |
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| WW01 | Invention patent application withdrawn after publication |