CN113670823A - Material surface relative humidity detection device under atmospheric environment - Google Patents
Material surface relative humidity detection device under atmospheric environment Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 37
- 238000001514 detection method Methods 0.000 title claims abstract description 31
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 3
- 239000000835 fiber Substances 0.000 claims description 16
- 229920006395 saturated elastomer Polymers 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000001931 thermography Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 description 10
- 238000005260 corrosion Methods 0.000 description 10
- 238000012360 testing method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- G—PHYSICS
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0003—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiant heat transfer of samples, e.g. emittance meter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J2005/0077—Imaging
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Abstract
The invention provides a material surface relative humidity detection device in an atmospheric environment, which comprises a sample table, wherein a bracket is arranged near the sample table, and a temperature sensor for monitoring the ambient temperature, a relative humidity sensor for monitoring the atmospheric relative humidity and an infrared thermal imager for monitoring the surface temperature of a sample are arranged on the bracket; the system also comprises a computer control system connected with the infrared thermal imager, the temperature sensor and the relative humidity sensor, and the following steps are realized when a processor executes a program: the method comprises the steps of acquiring and storing the surface temperature of a sample acquired by an infrared thermal imager in real time, acquiring and storing the acquired environmental temperature in real time, acquiring and storing the acquired atmospheric relative humidity in real time, and transmitting corresponding data to a data processing module of a computer control system; calculating and outputting the relative humidity of the surface of the sample; the invention adopts an extremely simple structure and thought to detect the relative humidity of the surface of the material, and can automatically, quickly and accurately acquire the relative humidity of the surface of the material.
Description
Technical Field
The invention belongs to the technical field of natural environment factor observation, and particularly relates to a device for detecting the relative humidity of the surface of a material in an atmospheric environment.
Background
Atmospheric corrosion in natural environment is the most common corrosion form, and is ubiquitous in many fields such as transportation, energy and chemical industry, ocean development, infrastructure, military equipment and the like.
The analysis of the corrosion environment of domestic related materials mainly stays at the level of the external atmospheric environment, and the environmental data such as the external environmental temperature, the relative humidity, the atmospheric pollutant concentration and the like monitored by a weather station are directly and approximately processed into the corrosion environment acting on the materials according to the relevant standards. With the increasing complexity of the service environment of materials, the requirement for accurate observation of corrosion environment data is higher and higher, and the traditional atmospheric environment data is difficult to meet the requirement for the corrosion environment data. More and more researches show that the relationship between the relative humidity and the corrosion rate acceleration shows a remarkable nonlinear characteristic, and the root cause of the relationship is that the corrosion damage of the material from the external atmospheric environment is started from the surface of the material, or the corrosion damage is conducted from the surface of the material and is influenced by the surface state such as the relative humidity of the surface of the material, however, no relatively simple device/method can rapidly and accurately acquire the relative humidity of the surface of the material at present.
Disclosure of Invention
The invention aims to provide a material surface relative humidity detection device under the atmospheric environment, which has a simple structure and can quickly and accurately acquire the relative humidity of the material surface.
In order to achieve the above object, the present invention adopts the following technical solutions.
The utility model provides a material surface relative humidity detection device under atmospheric environment, includes the sample platform that is used for placing the sample, its characterized in that: a bracket is arranged near the sample table, and a temperature sensor for monitoring the ambient temperature, a relative humidity sensor for monitoring the relative humidity of the atmosphere and an infrared thermal imager for monitoring the surface temperature of the sample are arranged on the bracket;
the device also comprises a computer control system connected with the infrared thermal imager, the temperature sensor and the relative humidity sensor, wherein the computer control system comprises a memory, a processor and a program which is stored on the memory and can be operated on the processor; the processor, when executing the program, implements the following steps/functions:
A. acquiring and storing the surface temperature T of a sample collected by an infrared thermal imager in real timesAcquiring and storing the acquired ambient temperature T in real timeaAcquiring and storing the collected atmospheric relative humidity RH in real timeaAnd transmitting the corresponding data to a data processing module of the computer control system;
B. the data processing module calculates and outputs the relative humidity RH of the surface of the sample according to the formula (I) and the formula (II)s；
In the formula (I), the compound is shown in the specification,
respectively representing the saturated vapour pressure of water in the atmospheric environment,
representing the saturated vapor pressure of water on the surface of the sample to be measured; in formula (II), when the saturated vapor pressure of water in the atmospheric environment is calculated, T is the ambient temperature Ta(ii) a When the saturated vapor pressure of the water on the surface of the sample to be measured is calculated, T is the surface temperature T of the samples。
In order to further improve the accuracy of the detection result, the temperature sensor and the relative humidity sensor are positioned right above the sample table, and the infrared thermal imager is arranged close to the sample as much as possible.
In order to further improve the accuracy of the detection result, the detection points of the temperature sensor and the relative humidity sensor are positioned on the same vertical plane.
As a preferred scheme, the temperature resolution of the infrared thermal imaging instrument is not higher than 0.5 ℃; the temperature resolution of the temperature sensor is not higher than 0.5 ℃, and the relative humidity resolution of the relative humidity sensor is not higher than 0.1%.
In order to further improve the stability of the detection equipment and the accuracy of the detection result, the device also comprises a fiber grating humidity sensor connected with the computer control system, the fiber grating humidity sensor is arranged beside the detected object, and the detection surface of the fiber grating humidity sensor is flush with the detected surface of the detected object; the processor implements the following steps when executing the program:
C. relative humidity data RH detected by fiber bragg grating humidity sensor is acquired and stored in real timegAnd comparing the relative humidity data with the surface relative humidity RH obtained in step BsFor comparison, when RH is setgAnd RHsWhen the difference exceeds 5%, the detection device is prompted or the detection data is abnormal.
Has the advantages that: the invention adopts an extremely simple structure and thought to detect the relative humidity of the surface of the material, can automatically, quickly and accurately acquire the relative humidity of the surface of the material, can monitor the change of the relative humidity of the surface of the material in real time, has stable and reliable detection results, is favorable for providing reliable basis for accurate observation of corrosion environment data, is suitable for various atmospheric environments, and has wide application prospect.
Drawings
FIG. 1 is a schematic diagram of a device for detecting relative humidity of a material surface in an atmospheric environment, in which: 1-a sample table, 2-a sample to be detected, 3-an infrared thermal imager, 4-a temperature sensor, 5-a relative humidity sensor, 6-a bracket, 7-a terminal (computer), 8-a data acquisition module and 9-a data processing module;
FIG. 2 is a surface temperature distribution diagram of a material obtained in the example;
FIG. 3 is a graph showing the relative humidity distribution of the surface of the material obtained in the example.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the following embodiments are only used for understanding the principle of the present invention and the core idea thereof, and do not limit the scope of the present invention. It should be noted that modifications to the invention as described herein, which do not depart from the principles of the invention, are intended to be within the scope of the claims which follow.
Example 1
Referring to fig. 1-3, a device for detecting the relative humidity of the surface of a material in an atmospheric environment includes a sample stage 1 for placing a sample 2, a bracket 6 disposed near the sample stage 1, a temperature sensor 4 disposed on the bracket 6 for monitoring the ambient temperature, a relative humidity sensor 5 for monitoring the relative humidity of the atmosphere, and an infrared thermal imager 3 for monitoring the surface temperature of the sample 2. Wherein, the temperature sensor 4 and the relative humidity sensor 5 are positioned right above the sample table 1, and the infrared thermal imager 3 is arranged as close to the sample 2 as possible; the detection points of the temperature sensor 4 and the relative humidity sensor 5 are positioned on the same vertical plane; the temperature resolution of the infrared thermal imager 3 is not higher than 0.5 ℃; the temperature resolution of the temperature sensor 4 is not higher than 0.5 ℃, and the relative humidity resolution of the relative humidity sensor 5 is not higher than 0.1%. The detection device also comprises a computer control system connected with the infrared thermal imager 3, the temperature sensor 4 and the relative humidity sensor 5, wherein the computer control system comprises a memory, a processor and a program which is stored on the memory and can be run on the processor; the processor, when executing the program, implements the following steps/functions:
A. acquiring and storing the surface temperature Ts of the sample 2 acquired by the infrared thermal imager 3 in real time, acquiring and storing the acquired environmental temperature Ta in real time, and acquiring and storing the acquired atmospheric relative humidity RH in real timeaAnd transmitting the corresponding data to a data processing module of the computer control system;
B. the data processing module calculates and outputs the relative humidity RH of the surface of the sample 2 according to the formula (I) and the formula (II)s；
In the formula (I), the compound is shown in the specification,
respectively representing the saturated vapour pressure of water in the atmospheric environment,
represents the saturated vapor pressure of water on the surface of the sample 2 to be measured; in the formula II, when the saturated vapor pressure of water in the atmospheric environment is calculated, T is equal to the ambient temperature Ta; and when the saturated vapor pressure of the water on the surface of the sample 2 to be measured is calculated, T is the surface temperature Ts of the sample 2.
Before detection, the detection device is firstly installed in the atmospheric environment of a test area and preliminarily debugged, then a sample 2 to be detected is placed on the sample table 1, and then the distance from the infrared thermal imager 3 to the surface of the sample to be detected is adjusted to be 0.3m, so that the infrared thermal imager completely corresponds to the sample to be detected, and the optimal signal receiving effect is achieved. A detection stage: starting the infrared thermal imager 3 and the computer control system, and detecting the temperature distribution T on the surface of the sample 2 to be detected in real time by the infrared thermal imager 3sThe temperature sensor 4 and the relative humidity sensor 5 synchronously record the ambient temperature T of the atmosphereaAnd the atmospheric relative humidity RHaAnd the data acquisition module 8 acquires and synchronously stores data detected by the infrared thermal imager 3, the temperature sensor 4 and the relative humidity sensor 5 in real time and transmits the data to the data processing module 9, and the data processing module 9 synchronously analyzes and displays the detected surface temperature, atmospheric environment temperature and atmospheric relative humidity of the sample to be detected and calculates the surface relative humidity and distribution of the product.
Taking four groups of stainless steel plate samples with the length of 150mm, the width of 100mm and the thickness of 3mm as an example for verification, the relative humidity of the surface of the material is detected in the atmosphere environment of some place in Jiangjin, Chongqing, the four groups of samples are simultaneously carried out, and the distance between adjacent edges of the adjacent samples is 20 cm. At test time, group 1, 2: synchronously installing fiber grating humidity sensors at four corners and the middle of a sample to detect the relative humidity of the surface of the sample, wherein the middle part of the sample is provided with a through hole for installing the fiber grating humidity sensors, and the acquisition surface of each fiber grating humidity sensor is flush with the surface of the sample; group 3, 4: the detection device in the embodiment is adopted for detection. The results show that: the average values of the relative humidity of the material surface measured by the optical fiber sensor are 82.5% (group 1) and 82.4% (group 2), the relative humidity of the material surface measured by the device of the embodiment is 82% (group 3) and 82.5% (group 4), and the four groups of data are very close, which shows that the device of the invention has high accuracy.
The device has adopted extremely simple structure and thinking to detect material surface relative humidity, and can acquire the relative humidity on material surface automatically, fast, accurately to but real-time supervision material surface relative humidity's change, the testing result is reliable and stable, is favorable to providing reliable foundation for the accurate observation of corrosive environment data, is applicable to multiple atmospheric environment, has wide application prospect.
Example 2
A relative humidity detection device for a material surface in an atmospheric environment is disclosed by reference to example 1, and the main difference from example 1 is as follows: the device also comprises a fiber grating humidity sensor connected with the computer control system, wherein the fiber grating humidity sensor is arranged beside the measured object, and the detection surface of the fiber grating humidity sensor is flush with the measured surface of the measured object; the processor implements the following steps when executing the program: C. relative humidity data RH detected by fiber bragg grating humidity sensor is acquired and stored in real timegAnd comparing the relative humidity data with the surface relative humidity RH obtained in step BsFor comparison, when RH is setgAnd RHsWhen the difference exceeds 5%, the detection device is prompted or the detection data is abnormal. For example, when the relative humidity data RH detected in step Bs90%, and relative humidity data RH detected by fiber grating humidity sensorg84%, the detection device may be prompted or the data detected is abnormal.
Claims (6)
1. The utility model provides a material surface relative humidity detection device under atmospheric environment, includes sample platform (1) that is used for placing sample (2), its characterized in that: a bracket (6) is arranged near the sample table (1), a temperature sensor (4) for monitoring the ambient temperature, a relative humidity sensor (5) for monitoring the relative humidity of the atmosphere and an infrared thermal imager (3) for monitoring the surface temperature of the sample (2) are arranged on the bracket (6).
2. The apparatus for detecting the relative humidity of the surface of the material in the atmospheric environment according to claim 1, wherein: the device also comprises a computer control system connected with the infrared thermal imager (3), the temperature sensor (4) and the relative humidity sensor (5), wherein the computer control system comprises a memory, a processor and a program which is stored on the memory and can be operated on the processor; the processor implements the following steps when executing the program:
A. the method comprises the steps of acquiring and storing the surface temperature Ts of a sample (2) collected by an infrared thermal imager (3) in real time, acquiring and storing the collected ambient temperature Ta in real time, and acquiring and storing the collected atmospheric relative humidity RH in real timeaAnd transmitting the corresponding data to a data processing module of the computer control system;
B. the data processing module calculates and outputs the relative humidity RH of the surface of the sample (2) according to the formula (I) and the formula (II)s；
In the formula (I), the compound is shown in the specification,
respectively representing the saturated vapour pressure of water in the atmospheric environment,
representing the saturated vapor pressure of water on the surface of the sample (2) to be tested; in the formula (II), when the saturated vapor pressure of water in the atmospheric environment is calculated, T is equal to the ambient temperature Ta; and when the saturated vapor pressure of the water on the surface of the sample (2) to be measured is calculated, T is the surface temperature Ts of the sample (2).
3. The apparatus for detecting the relative humidity of the surface of the material in the atmospheric environment according to claim 2, wherein: the temperature sensor (4) and the relative humidity sensor (5) are positioned right above the sample table (1), and the infrared thermal imager (3) is arranged close to the sample (2) as much as possible.
4. The apparatus for detecting the relative humidity of the surface of the material in the atmospheric environment according to claim 3, wherein: the detection points of the temperature sensor (4) and the relative humidity sensor (5) are positioned on the same vertical plane.
5. The apparatus for detecting the relative humidity of the surface of the material in the atmospheric environment according to claim 2, 3 or 4, wherein: the temperature resolution of the infrared thermal imaging instrument (3) is not higher than 0.5 ℃; the temperature resolution of the temperature sensor (4) is not higher than 0.5 ℃, and the relative humidity resolution of the relative humidity sensor (5) is not higher than 0.1%.
6. The apparatus for detecting the relative humidity of the surface of the material in the atmospheric environment according to claim 5, wherein: the device also comprises a fiber grating humidity sensor connected with the computer control system, the fiber grating humidity sensor is arranged beside the measured object, and the detection surface of the fiber grating humidity sensor is flush with the measured surface of the measured object; the processor implements the following steps when executing the program:
C. relative humidity data RH detected by fiber bragg grating humidity sensor is acquired and stored in real timegAnd comparing the relative humidity data with the surface relative humidity RH obtained in step BsFor comparison, when RH is setgAnd RHsWhen the difference exceeds 5%, the detection device is prompted or the detection data is abnormal.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646268A (en) * | 2022-04-16 | 2022-06-21 | 中国兵器装备集团西南技术工程研究所 | Sample surface microenvironment factor monitoring device and monitoring method |
| CN114812635A (en) * | 2022-04-19 | 2022-07-29 | 中国兵器工业第五九研究所 | Modularized multi-parameter water quality monitoring fiber grating sensor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738422A (en) * | 2009-12-23 | 2010-06-16 | 北京宝力马传感技术有限公司 | Humidity measuring device and method |
| CN205102861U (en) * | 2015-11-18 | 2016-03-23 | 苏州热工研究院有限公司 | Anticorrosive construction environment detects and identification system |
| CN106441586A (en) * | 2016-08-23 | 2017-02-22 | 上海华乘智能设备有限公司 | Infrared live line detector based on temperature and humidity automatic compensation, and compensation method thereof |
| CN107132174A (en) * | 2017-06-27 | 2017-09-05 | 中国计量大学 | The wet detection device of physical property of porous material and its measuring method |
| CN108800874A (en) * | 2017-12-20 | 2018-11-13 | 北京林业大学 | A kind of equipment promoting wood surface heat and moisture transfer |
| CN110006145A (en) * | 2019-03-08 | 2019-07-12 | 深圳达实智能股份有限公司 | Apparatus of air conditioning control method and device based on environment and body surface temperature and humidity |
| CN111410554A (en) * | 2019-08-01 | 2020-07-14 | 广东省源天工程有限公司 | Real-time control method for moisturizing and curing process of exposed concrete surface in natural environment |
-
2021
- 2021-07-06 CN CN202110765578.6A patent/CN113670823A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738422A (en) * | 2009-12-23 | 2010-06-16 | 北京宝力马传感技术有限公司 | Humidity measuring device and method |
| CN205102861U (en) * | 2015-11-18 | 2016-03-23 | 苏州热工研究院有限公司 | Anticorrosive construction environment detects and identification system |
| CN106441586A (en) * | 2016-08-23 | 2017-02-22 | 上海华乘智能设备有限公司 | Infrared live line detector based on temperature and humidity automatic compensation, and compensation method thereof |
| CN107132174A (en) * | 2017-06-27 | 2017-09-05 | 中国计量大学 | The wet detection device of physical property of porous material and its measuring method |
| CN108800874A (en) * | 2017-12-20 | 2018-11-13 | 北京林业大学 | A kind of equipment promoting wood surface heat and moisture transfer |
| CN110006145A (en) * | 2019-03-08 | 2019-07-12 | 深圳达实智能股份有限公司 | Apparatus of air conditioning control method and device based on environment and body surface temperature and humidity |
| CN111410554A (en) * | 2019-08-01 | 2020-07-14 | 广东省源天工程有限公司 | Real-time control method for moisturizing and curing process of exposed concrete surface in natural environment |
Non-Patent Citations (2)
| Title |
|---|
| 周继凯;慕建磊;严媛媛;潘杨;: "早龄期混凝土内部湿度场的测量与数值模拟", vol. 13, no. 15, pages 4252 - 4256 * |
| 徐璐: "《物理化学实验》", 中国医药科技出版社, pages: 12 - 13 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646268A (en) * | 2022-04-16 | 2022-06-21 | 中国兵器装备集团西南技术工程研究所 | Sample surface microenvironment factor monitoring device and monitoring method |
| CN114646268B (en) * | 2022-04-16 | 2024-04-16 | 中国兵器装备集团西南技术工程研究所 | Sample surface micro-environment factor monitoring device and monitoring method |
| CN114812635A (en) * | 2022-04-19 | 2022-07-29 | 中国兵器工业第五九研究所 | Modularized multi-parameter water quality monitoring fiber grating sensor |
| CN114812635B (en) * | 2022-04-19 | 2023-10-20 | 中国兵器工业第五九研究所 | Modularized multi-parameter water quality monitoring fiber bragg grating sensor |
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