CN106645967A - System for testing conductivity under constant temperature and humidity conditions - Google Patents
System for testing conductivity under constant temperature and humidity conditions Download PDFInfo
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- CN106645967A CN106645967A CN201710076275.7A CN201710076275A CN106645967A CN 106645967 A CN106645967 A CN 106645967A CN 201710076275 A CN201710076275 A CN 201710076275A CN 106645967 A CN106645967 A CN 106645967A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a system for testing conductivity under constant temperature and humidity conditions. The conductivity of a material is tested by combination of a conductivity test fixture and an electrochemical workstation, the conductivity test system comprises three parts: a humidifying tank, a connecting duct and a test tank. The humidifying tank is used for storing water and comprises a pressure gauge, a heating device, a thermocouple and an air outlet; the test tank provides an environment of necessary test conditions for a sample test and comprises a pressure gauge, an air inlet, a test conducting wire outlet hole, a heating device, a thermocouple and an exhaust hole; and the connecting duct is used for connecting the test tank with the humidifying tank, and each part needs to control the temperature by using a temperature controller and a heating band so as to ensure the stability of the environment. The system disclosed by the invention mainly provides an environment for testing the conductivity under high temperature and constant humidity conditions, and has the advantages of being simple in structure, convenient in operation, etc.
Description
Technical field
The present invention relates to a kind of real-time testing system for material electric conductivity under the conditions of constant temperature and humidity, more particularly to temperature
The wider test system of degree, pressure limit, while being combined with conductivity test jig and electrochemical workstation, carries out constant temperature and humidity
Under the conditions of conductance measurement.
Background technology
Humidity is the content containing vapor in air, and it has three kinds of method for expressing：
（1）Water capacity, it represents steam quality and dry air mass ratio in humid air,,For in air
Steam quality,For dry air quality；
（2）Absolute humidity, the quality containing vapor in the humid air of its per cubic metre of expression,,For wet sky
The quality of vapor in gas,By research humid air volume；
（3）Relative humidity, it represent air in absolute humidity with it is synthermal under saturated humidity ratio ratio,,For temperatureTThe quality of vapor in when institute's research system,For the temperatureTUnder, vapor reaches full
With when quality.
In climatic chamber, its humidity is usually the relative humidity under the conditions of a certain design temperature.The calculating of relative humidity
Generally there are three kinds of methods：
（1）The water capacity of humid air is issued to water capacity during saturation divided by identical temperature, ,For temperatureTWhen water vapor in air quality,For the temperatureTUnder, water steams
Gas reaches quality during saturation；
（2）The absolute humidity of humid air divided by the synthermal lower maximum absolute humidity that can be reached, ；
（3）Steam partial pressure is divided by water saturation vapour pressure at identical temperature in humid air,,For temperatureTWhen
The partial pressure of vapor in institute's research system,For the temperatureTUnder, the saturated vapour pressure of vapor.
When temperature reaches higher higher than 100 DEG C, relative humidity, the pressure in system is more than 1atm, is so accomplished by material
Material has certain anti-pressure ability, so the climatic chamber sold currently on the market mostly uses temperature 10-100 DEG C, humidity
20-98%RH or so.And for the test temperature of the climatic chamber of high temperature mostly also is -20 to 150 DEG C, and the constant temperature of high temperature
Constant humidity cabinet price is generally higher, and floor space is larger, and the test not being suitable in small test is used.Problems very great Cheng
Reaching for the temperature and humidity range of condition that electrical conductivity is tested is limited on degree, especially, to needing application more hot conditions
Material cannot carry out complete research.
The content of the invention
It is an object of the invention to overcome existing technical deficiency, there is provided a kind of simple structure, easy to operate and be adapted to
Floor space that laboratory uses is few, low-cost constant temperature and humidity system.
In order to reach foregoing invention purpose, this test system is adopted the following technical scheme that：
For the test system of electrical conductivity under the conditions of constant temperature and humidity, with reference to conductivity test jig, electrochemical workstation material is carried out
The measure of material electrical conductivity, the system includes humidifying pot, connecting conduit and the part of test tank three.Humidifying pot is used for water storage, wherein wrapping
Containing pressure gauge, heater, thermocouple and venthole, the environment of test tank condition for needed for sample test offer, wherein including
Pressure gauge, air admission hole, test lead pick out hole, heater, thermocouple and steam vent, connecting conduit be used for connecting test tank with
Humidifying pot, and each section be both needed to temperature controller, heating tape and thermocouple control temperature, to ensure the stability of environment.
In above-mentioned test system, humidifying pot, connecting conduit and test tank are separate, are easy to repair and deposit, when using
It is connected using clamping sleeve blow-out patch.
In above-mentioned test system, whole system is made by nonmagnetic substances such as aluminium or copper, to ensure that it is pressure that equipment had both had
And antiseptic property, avoid the inductance produced in test process to impact ac impedance spectroscopy again.
In above-mentioned test system, heater can be arranged in humidifying pot and test tank or with heating tape with heating tube and be twined
It is wound on outside humidifying pot and test tank.
In above-mentioned test system, pressure gauge is high temperature resistant pressure gauge, system connection a, it is only necessary to pressure gauge, and it can be with
In humidifying pot, connecting conduit or test tank.
In above-mentioned test system, the thermocouple lower end in humidifying pot is flooded in deionized water, and venthole is more than the water surface.
In above-mentioned test system, with tank bottom spacing in 1-2cm, thermocouple lower end is in test tank tank for the air inlet pipe in test tank
Body center.
In above-mentioned test system, test lead is portalled by the test lead in test tank, and material is poured into a mould with high temperature resistant
Material is irrigated and fastened.
In above-mentioned test system, the steam vent in test tank is logical with two to be connected, for being vented.
In above-mentioned test system, humidifying pot and test tank are constituted by tank body and lid, are lined between tank body and lid poly-
Tetrafluoroethene packing ring simultaneously uses fastened by screw.
The general principle of the present invention：
Actual size first according to needed for experiment, by foregoing invention content aluminium pot customized or copper tank, the tank need to have certain
Pressure performance, and the packing ring of polytetrafluoro is accompanied between tank body and lid, the sealing of test system is ensured in test process
Property；In test process, the content of air is relatively low in system, can ignore substantially, thus can be using temperature in humidifying pot
With the vapor pressure in the relation judgement system of saturated vapor pressure, while using rh value in test tank be water vapor pressure
By force with test temperature under Saturated water vapor pressure the ratio relative humidity that is worth in test environment, this ensures that there constant temperature permanent
Wet test condition, while installing pressure gauge, further monitors the numerical value of saturated vapor pressure；For the humidifying pot temperature less than 90 DEG C
Degree, can utilize the steam vent in test tank to be vacuumized, to ensure that air content is relatively low using front；For higher than 90 DEG C
When, humidifying pot is heated to design temperature, and opens test tank steam vent, using the air in vapor discharge system, when one section
Between after, close steam vent and simultaneously measure.
The present invention compared with prior art, has the advantage that：
（1）Floor space is little, simple structure, convenient dismounting, assembling；
（2）The temperature and humidity scope of test is wider, substantially meets research range and uses；
（3）It is cheap, it is workable.
Description of the drawings
Fig. 1 is test system model.
Wherein, 1- humidifying pots, 2- humidifying pot polytetrafluoro packing rings, 3- humidifying pot lids, 4- humidifying pot fastening screws, 5- pressure
Table, 6- humidifying pot thermocouples, 7- humidifying pot ventholes, 8- connecting tubes, 9- test tanks, 10- test tank polytetrafluoro packing rings, 11- is surveyed
Examination tank fastening screw, 12- test tank air admission holes, 13- test leads and its fairlead, 14- test tank thermocouples, 15- steam vents,
16- test fixtures, 17- heating tapes, 18- connecting tube thermocouples.
Specific embodiment
For a better understanding of the present invention, below in conjunction with the accompanying drawings the present invention is further described.
Embodiment one：
First, pressure gauge 5 and 6 is attached to into humidifying pot 1, the position of deionized water to tank volume half is added into humidifying pot,
Put polytetrafluoro packing ring 2 well, lid 3 is fastened with screw 4.Test fixture 16 is put in test tank 9, wire is portalled by wire
13 are connected to outside tank, and are portalled with high temperature resistant cast material casting wire, put polytetrafluoro packing ring 10 well, and lid 11 is tight with screw
Gu.Then 1,8,9 three parts are connected with clamping sleeve blow-out patch.Steam vent 15 is connected with vavuum pump, 10min or so rows are vacuumized
Except the air in system, steam vent 15 is then shut off.The temperature of humidifying pot 1 is set as 70 DEG C, connecting conduit 8 is 80 DEG C, test tank 9
Temperature is 80 DEG C, and when carrying out conductance measurement after temperature stabilization in system, condition determination is, 80 DEG C of temperature, and relative humidity is 70
The ratio of DEG C water saturation vapour pressure and 80 DEG C of water saturation vapour pressures, i.e. 65.8%RH.
Embodiment two：
First, pressure gauge 5 and thermocouple 6 are attached to into humidifying pot 1, deionized water is added into humidifying pot to tank volume half
Position, puts polytetrafluoro packing ring 2 well, and lid 3 is fastened with screw 4.Test fixture 16 is put in test tank 9, wire is by leading
Line portals and 13 is connected to outside tank, and is portalled with high temperature resistant cast material casting wire, puts polytetrafluoro packing ring 10 well, and lid 11 is used
Fastened by screw.Then 1,8,9 three parts are connected with clamping sleeve blow-out patch.The temperature of humidifying pot 1 is set as 90 DEG C, connecting conduit 8 is
100 DEG C, the temperature of test tank 9 is 100 DEG C, and opens steam vent 15, and exhaust 10min or so is then shut off steam vent, adjusts humidification
The temperature of tank 1 is 120 DEG C, and connecting conduit 8 and the temperature of test tank 9 are 150 DEG C, when carrying out electrical conductivity survey after temperature stabilization in system
Fixed, condition determination is that 150 DEG C of temperature, relative humidity is 120 DEG C of water saturation vapour pressures and 150 DEG C of water saturation vapour pressures
Than i.e. 41.72%RH.
The above, only presently preferred embodiments of the present invention is not limited to the present invention, all essences in the present invention
Any modification, equivalent or improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (10)
1. the test system of electrical conductivity under the conditions of constant temperature and humidity is used for, it is characterised in that：Comprising humidifying pot, connecting conduit and test
The part of tank three, humidifying pot is used for water storage, wherein comprising pressure gauge, heater, thermocouple and venthole, test tank is sample survey
Examination provides the environment of required test condition, wherein picking out hole, heater, thermocouple comprising pressure gauge, air admission hole, test lead
And steam vent, connecting conduit is used for connecting test tank and humidifying pot, and each section is both needed to temperature controller, heating tape and thermoelectricity
Even control temperature, to ensure the stability of environment.
2. the test system for electrical conductivity under the conditions of constant temperature and humidity according to claim 1, it is characterised in that：Whole body
The materials'use of system is the nonmagnetic metal such as aluminium, copper, while pressure, antiseptic property is ensured, it is to avoid inductive effect is to exchange
The interference of impedance spectrum test result.
3. the test system for electrical conductivity under the conditions of constant temperature and humidity according to claim 1, it is characterised in that：Humidification
Tank, connecting conduit and the part of test tank three independently, when in use, are attached with clamping sleeve blow-out patch.
4. the test system for electrical conductivity under the conditions of constant temperature and humidity according to claim 1, it is characterised in that：Heating
Device can be being placed in humidifying pot and test tank or reality by the way of heating tape is wrapped in outside humidifying pot and test tank using heating rod
It is existing.
5. the test system for electrical conductivity under the conditions of constant temperature and humidity according to claim 1, it is characterised in that：Pressure
Table is high temperature resistant pressure gauge, and system is connected, it is only necessary to which a pressure gauge, it may be mounted at humidifying pot, connecting conduit or test
On tank.
6. the test system for electrical conductivity under the conditions of constant temperature and humidity according to claim 1, it is characterised in that：Humidification
Venthole in deionized water, in humidifying pot is flooded more than the water surface in thermocouple lower end in tank.
7. the test system for electrical conductivity under the conditions of constant temperature and humidity according to claim 1, it is characterised in that：Test
Thermocouple lower end in tank is located at test tank center, air inlet pipe and tank bottom spacing between 1-2 cm.
8. the test system for electrical conductivity under the conditions of constant temperature and humidity according to claim 1, it is characterised in that：Will test
Wire is portalled extraction by the test lead in test tank, and is fastened with the perfusion of high temperature resistant mould material.
9. the test system for electrical conductivity under the conditions of constant temperature and humidity according to claim 1, it is characterised in that：Humidifying pot
Constituted by tank body and lid with test tank, the seal washer of polytetrafluoroethylene (PTFE) and tight with screw is lined between tank body and lid
Gu.
10. the test system for electrical conductivity under the conditions of constant temperature and humidity according to claim 1, it is characterised in that：Humidification
Tank and test tank have certain wall thickness, to obtain required corresponding test pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710076275.7A CN106645967A (en) | 2017-02-13 | 2017-02-13 | System for testing conductivity under constant temperature and humidity conditions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710076275.7A CN106645967A (en) | 2017-02-13 | 2017-02-13 | System for testing conductivity under constant temperature and humidity conditions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106645967A true CN106645967A (en) | 2017-05-10 |
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ID=58844702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710076275.7A Pending CN106645967A (en) | 2017-02-13 | 2017-02-13 | System for testing conductivity under constant temperature and humidity conditions |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180171A (en) * | 2020-11-12 | 2021-01-05 | 合肥福森传感科技有限公司 | Resistance value detection equipment under constant temperature |
| CN113687144A (en) * | 2021-07-30 | 2021-11-23 | 蜂巢能源科技有限公司 | Testing device and testing method for diaphragm ionic conductivity |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2658742Y (en) * | 2003-11-27 | 2004-11-24 | 中国科学院武汉岩土力学研究所 | Device for measuring soil maximum moisture absorption water content rate |
| CN1598531A (en) * | 2004-09-24 | 2005-03-23 | 哈尔滨工业大学 | Water saturation vapour pressure measuring device and measuring method thereof |
| CN203170340U (en) * | 2013-03-12 | 2013-09-04 | 东莞市升微机电设备科技有限公司 | Constant temperature and humidity test chamber |
| CN104459323A (en) * | 2013-09-13 | 2015-03-25 | 中国科学院大连化学物理研究所 | Humiture controllable conductivity testing device and operation method thereof |
| CN204807490U (en) * | 2015-07-16 | 2015-11-25 | 华北电力大学（保定） | Multi -functional liquid drop flash distillation laboratory bench |
-
2017
- 2017-02-13 CN CN201710076275.7A patent/CN106645967A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2658742Y (en) * | 2003-11-27 | 2004-11-24 | 中国科学院武汉岩土力学研究所 | Device for measuring soil maximum moisture absorption water content rate |
| CN1598531A (en) * | 2004-09-24 | 2005-03-23 | 哈尔滨工业大学 | Water saturation vapour pressure measuring device and measuring method thereof |
| CN203170340U (en) * | 2013-03-12 | 2013-09-04 | 东莞市升微机电设备科技有限公司 | Constant temperature and humidity test chamber |
| CN104459323A (en) * | 2013-09-13 | 2015-03-25 | 中国科学院大连化学物理研究所 | Humiture controllable conductivity testing device and operation method thereof |
| CN204807490U (en) * | 2015-07-16 | 2015-11-25 | 华北电力大学（保定） | Multi -functional liquid drop flash distillation laboratory bench |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180171A (en) * | 2020-11-12 | 2021-01-05 | 合肥福森传感科技有限公司 | Resistance value detection equipment under constant temperature |
| CN113687144A (en) * | 2021-07-30 | 2021-11-23 | 蜂巢能源科技有限公司 | Testing device and testing method for diaphragm ionic conductivity |
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