CN202362265U - Embedded contact type probe for monitoring water content change in porous material - Google Patents
Embedded contact type probe for monitoring water content change in porous material Download PDFInfo
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- CN202362265U CN202362265U CN2011204662351U CN201120466235U CN202362265U CN 202362265 U CN202362265 U CN 202362265U CN 2011204662351 U CN2011204662351 U CN 2011204662351U CN 201120466235 U CN201120466235 U CN 201120466235U CN 202362265 U CN202362265 U CN 202362265U
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- waterproof
- sealing material
- shell
- change
- cork
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Abstract
The utility model relates to an embedded contact type probe for monitoring water content change in a porous material, comprising a shell. A waterproof sealing material and a connected waterproof sealing joint are arranged in the shell, a cork wood is arranged at the end head of the waterproof sealing material, two measuring electrodes are arranged in the cork wood and are connected with measuring leads, the measuring leads pass through the waterproof sealing material and the waterproof sealing joint and then are led out of the shell, and the cork wood is fixedly sealed in the shell through the waterproof sealing material. The embedded contact type probe disclosed by the utility model is directly embedded into a monitoring part of the porous material to be monitored and the like; and the water content of the cork wood is directly calculated by continuously monitoring impedance change of the measuring electrodes according to a functional relation of the firstly marked water content of the cork wood and the impedance change among the measuring electrodes and the cork wood; in addition, the water content change of the porous material to be tested is monitored according to the impedance change among the measuring electrodes in measurement software.
Description
Technical field
The utility model relates to a kind of detection probe, is specifically related to a kind of probe of imbedding change of moisture content in the contact monitoring porosint.
Background technology
Water cut in the porous medium or moisture measurement are very important.The method that is used for measuring relative humidity in material or the material now comprises electrical measuring method, microwave method, optical Fiber Method etc.; But; Still do not have at present under the sensor, particularly super-humid conditions of change of moisture content in the long-time direct contact type monitoring porous medium, like fresh concrete, mud etc.; In case commercial sensor contact wetting promptly lost efficacy in very short time, can't be competent at the long term monitoring task.
A kind of contactless wooden stick humidity sensor is arranged, need the stabilization time of 1～12hrs usually; Measurement range is generally RH80～95%; Because of needs Measurement of Air chamber, so only can be used for hardened material; Measuring length because of its wooden stick is 45mm, so mensuration is one section mean value in the zone, but not the value of certain specified point; In addition, detect for the several years although it has been used for entity structure, its in-situ monitoring function that still is unrealized needs irregularly to take out sensor, measures the electricity of wooden stick and leads.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of the utility model is to provide a kind of probe of imbedding change of moisture content in the contact monitoring porosint, can the long term monitoring porosint in change of moisture content.
In order to achieve the above object, the technical scheme taked of the utility model is:
A kind of probe of imbedding change of moisture content in the contact monitoring porosint; Comprise shell 1, the WATERPROOF PACKING GLAND 5 that is provided with waterproof and sealing material 4 in the shell 1 and joins with it, the termination of waterproof and sealing material 4 is provided with cork 3; Be provided with two potential electrode 6 in the cork 3; Potential electrode 6 is connected with measurement lead 2, and measurement lead 2 passes waterproof and sealing material 4, WATERPROOF PACKING GLAND 5 is drawn outside the shell 1, and cork 3 usefulness waterproof and sealing materials 4 are sealingly fastened in the shell 1.
Described waterproof and sealing material 4 is alkaline-resisting thermoset resin, comprises epoxy resin, phenolics or furane resin.
Described WATERPROOF PACKING GLAND 5 is waterproof and sealing material or the firm sealing cap of O-ring seal.
It is 2～50mm that described cork 3 adopts diameter, and length is the pole of 2～50mm, or adopts the on-circular cross-section wooden stick.
Described potential electrode 6 diameters are 0.1～5mm, and length is 1～50mm, adopt corrosion resistant metal, comprise Pt, Au, Cu, Ti alloy or stainless steel.
Because measured material can directly imbedded and contact to the utility model; Through potential electrode to impedance variations monitor the variation of water cut in the material; Measuring unit is packaged in the corrosion-resistant waterproof protective case except that test surfaces, so change of moisture content in can the long term monitoring porosint.
The corresponding time of the test of the utility model, the relative humidity scope of measurement environment was RH0～100% less than 1ms, can directly be used for the variation monitoring like material water cut such as fresh concrete or dry concrete.
Description of drawings
Accompanying drawing is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done detailed description.
With reference to Fig. 1, a kind of probe of imbedding change of moisture content in the contact monitoring porosint comprises shell 1; The WATERPROOF PACKING GLAND 5 that is provided with waterproof and sealing material 4 in the shell 1 and joins with it; The termination of waterproof and sealing material 4 is provided with cork 3, is provided with two potential electrode 6 in the cork 3, and potential electrode 6 is connected with measurement lead 2; Measurement lead 2 passes waterproof and sealing material 4, WATERPROOF PACKING GLAND 5 is drawn outside the shell 1, and cork 3 usefulness waterproof and sealing materials 4 are sealingly fastened in the shell 1.
Described waterproof and sealing material 4 is alkaline-resisting thermoset resin, comprises epoxy resin, phenolics or furane resin.
Described WATERPROOF PACKING GLAND 5 is waterproof and sealing material or the firm sealing cap of O-ring seal.
It is 2～50mm that described cork 3 adopts diameter, and length is the pole of 2～50mm, or adopts the on-circular cross-section wooden stick.
Described potential electrode 6 diameters are 0.1～5mm, and length is 1～50mm, adopt corrosion resistant metal, comprise Pt, Au, Cu, Ti alloy or stainless steel.
The principle of work of the utility model is:
The utility model probe is directly imbedded monitoring positions such as tested porosint; Through 6 impedance variations of continuous monitoring potential electrode; Funtcional relationship in the cork 3 that utilization is demarcated in advance between water cut and potential electrode 6 and the cork impedance directly calculates the water cut in the cork 3; Through the impedance variations of 6 of potential electrode in the Survey Software 3, thereby monitor the change of moisture content in the tested porosint.
Claims (5)
1. imbed the probe that contact is monitored change of moisture content in the porosint for one kind; Comprise shell (1); It is characterized in that: the WATERPROOF PACKING GLAND (5) that is provided with waterproof and sealing material (4) in the shell (1) and joins with it; The termination of waterproof and sealing material (4) is provided with cork (3), is provided with two potential electrode (6) in the cork (3), and potential electrode (6) is connected with measurement lead (2); Measurement lead (2) passes waterproof and sealing material (4), WATERPROOF PACKING GLAND (5) is drawn outside the shell (1), and cork (3) is sealingly fastened in the shell (1) with waterproof and sealing material (4).
2. a kind of probe of imbedding change of moisture content in the contact monitoring porosint according to claim 1, it is characterized in that: described waterproof and sealing material (4) is alkaline-resisting thermoset resin, comprises epoxy resin, phenolics or furane resin.
3. a kind of probe of imbedding change of moisture content in the contact monitoring porosint according to claim 1, it is characterized in that: described WATERPROOF PACKING GLAND (5) is waterproof and sealing material or the firm sealing cap of O-ring seal.
4. a kind of probe of imbedding change of moisture content in the contact monitoring porosint according to claim 1, it is characterized in that: it is 2～50mm that described cork (3) adopts diameter, and length is the pole of 2～50mm, or adopts the on-circular cross-section wooden stick.
5. a kind of probe of imbedding change of moisture content in the contact monitoring porosint according to claim 1; It is characterized in that: described potential electrode (6) diameter is 0.1～5mm; Length is 1～50mm, adopts corrosion resistant metal, comprises Pt, Au, Cu, Ti alloy or stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204662351U CN202362265U (en) | 2011-11-22 | 2011-11-22 | Embedded contact type probe for monitoring water content change in porous material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204662351U CN202362265U (en) | 2011-11-22 | 2011-11-22 | Embedded contact type probe for monitoring water content change in porous material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202362265U true CN202362265U (en) | 2012-08-01 |
Family
ID=46573443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204662351U Expired - Lifetime CN202362265U (en) | 2011-11-22 | 2011-11-22 | Embedded contact type probe for monitoring water content change in porous material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202362265U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111487282A (en) * | 2020-05-18 | 2020-08-04 | 天津大学 | Device and method for measuring heterogeneous content in porous material with limited thickness |
| CN114199955A (en) * | 2022-01-05 | 2022-03-18 | 南京审计大学 | Cylindrical honeycomb ceramic soft soil water content test probe device |
-
2011
- 2011-11-22 CN CN2011204662351U patent/CN202362265U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111487282A (en) * | 2020-05-18 | 2020-08-04 | 天津大学 | Device and method for measuring heterogeneous content in porous material with limited thickness |
| CN114199955A (en) * | 2022-01-05 | 2022-03-18 | 南京审计大学 | Cylindrical honeycomb ceramic soft soil water content test probe device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120801 |