CN201477062U - Moisture content measuring device for porous building envelope - Google Patents
Moisture content measuring device for porous building envelope Download PDFInfo
- Publication number
- CN201477062U CN201477062U CN2009203089172U CN200920308917U CN201477062U CN 201477062 U CN201477062 U CN 201477062U CN 2009203089172 U CN2009203089172 U CN 2009203089172U CN 200920308917 U CN200920308917 U CN 200920308917U CN 201477062 U CN201477062 U CN 201477062U
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- sensing probe
- moisture content
- building envelope
- building
- measuring device
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Abstract
The utility model discloses a moisture content measuring device for a porous building envelope. A recorder (2) is electrically connected with a sensing probe (1). The sensing probe (1) is fixedly installed inside a hollow cylindrical shell (4) with meshes or fixed onto the cylindrical shell (4) in a bared manner, wherein the cylindrical shell (4) has a diameter smaller than 5 mm and length ranging form 8 cm to 10 cm. The moisture content measuring device for a porous building envelope brings convenience for building technical staff to measure moisture content of building envelopes in site, leads the sensing probe to be embedded inside a building envelope or mounted inside a pore dilled in the building envelope to measure moisture content of the building envelope.
Description
Technical field
The utility model relates to a kind of proving installation, particularly relates to a kind of porous architectural exterior-protecting construction water capacity proving installation.
Background technology
Building technology personnel have great demand to the sensor of measuring the construction wall moisture, gather the relevant issues that cause to help to alleviate in the buildings because of excess moisture.These problems may cause mould and grow, and structure is aging, the destruction of thermal integrity and insect pest.The researchist has put forward the theoretical model that many prediction moisture transmit in buildings.Moisture transducer comes predicting the outcome of verification model as a kind of research tool accurately, particularly when proposing a kind of new structure or material.The validity of the moisture removing measure of judging in the structure to be taked as a kind of on-the-spot instrument, moisture transducer also is very necessary.Finally, moisture transducer will use as a kind of forecasting tool of moisture abnormal conditions of indicating in intelligent house, so that the heating ventilation system is made adjustment, or keeps in repair to prevent the appearance of any further problem.
The sensor of Building technology personnel's the most popular use at present is based on the moisture transducer of building materials resistance, but very dissatisfied mostly this already present technology.These sensors are installed difficulty, and response drift can cause the transient changing of measurement.And be proved to be, the calibration of this sensor also is a kind of challenge.Numerous technology can guarantee than better accuracy of Resistance probe and easier use, but the measuring sonde of these technology or device can not be little be measured the moisture of architectural exterior-protecting construction inside in the little vestibule that can be installed in the wall.
The utility model content
Technical problem to be solved in the utility model provides and a kind ofly makes things convenient for the Building technology personnel that water capacity in the architectural exterior-protecting construction is carried out in-site measurement, sensing probe can be embedded in the architectural exterior-protecting construction, also can in architectural exterior-protecting construction, bore an aperture sensor is installed in the aperture, to measure the porous architectural exterior-protecting construction water capacity proving installation of the water capacity in the architectural exterior-protecting construction.
In order to solve the problems of the technologies described above, the porous architectural exterior-protecting construction water capacity proving installation that the utility model provides, registering instrument and sensing probe adopt and are electrically connected, and described sensing probe is by in relative humidity sensor and the temperature sensor hollow cylinder housing that to be packed in a diameter with the band mesh be 8-10mm less than 5mm length or expose and be fixed together.
Adopt the porous architectural exterior-protecting construction water capacity proving installation of technique scheme, because most architectural exterior-protecting constructions are made up of porosint, this device utilizes relative humidity sensor and temperature sensor accurately to measure the relative air humidity in the fine porosity in the porous architectural exterior-protecting construction, and the isothermal moisture adsorption and releasing curved line relation between the water capacity of utilization building porosint and the relative air humidity calculates the water capacity in the architectural exterior-protecting construction.Because the output voltage signal of relative humidity sensor is to change to some extent with the temperature variation of sensor site, need be according to the output signal and the temperature variation relation of relative humidity sensor, compensate the output signal of relative humidity sensor with the signal of temperature sensor, improve the accuracy of relative humidity measurement.Registering instrument calculates and changes out the rh value of fine porosity in the tested accurately architectural exterior-protecting construction according to the voltage signal of the relative humidity sensor output of sensing probe and the resistance signal of temperature sensor.Put the water capacity (moisture) of suction curve and the relation of relative humidity according to tested building space enclosing structure material balance suction again, calculate the water capacity (moisture) of changing out tested architectural exterior-protecting construction.
Characteristics of the present utility model:
1, the sensing probe volume is little, is convenient to be installed to architectural exterior-protecting construction inside, thereby is convenient to the change of soil water content situation of inner water capacity of in-site measurement body of wall and monitoring body of wall inside.
Small when 2, sensing probe is installed to the building enclosure structural failure, be easy to repair.
3, the measurement mechanism structure whole gather, light, be easy to carry and on-the-spot installation testing.
In sum, the utility model is a kind ofly to make things convenient for the Building technology personnel that water capacity in the architectural exterior-protecting construction is carried out in-site measurement, sensing probe can be embedded in the architectural exterior-protecting construction, also can in architectural exterior-protecting construction, bore an aperture sensor is installed in the aperture, to measure the porous architectural exterior-protecting construction water capacity proving installation of the water capacity in the architectural exterior-protecting construction.
Description of drawings
Fig. 1 is a composition synoptic diagram of the present utility model;
Fig. 2 is a sensing probe structural representation of the present utility model;
Fig. 3 is a sensing probe scheme of installation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, registering instrument 2 adopts with sensing probe 1 and is electrically connected, it is the hollow cylinder housing 4 interior (as shown in Figure 2) of 8-10mm less than 5mm length that sensing probe 1 is packed in a diameter with the band mesh by relative humidity sensor and temperature sensor, or exposed being fixed together, be used for measuring simultaneously the relative humidity and the temperature of the inner same position of building space enclosing structure material.Sensing probe 1 one ends are drawn a branch of cable, and cable thoroughly does away with the edge metal wire by 5 to be formed, and wherein 3 is the signal wire of humidity sensor: "+", "-" and " Vout "."+" and "-" gives the direct current of humidity sensor for 0～10V, and " Vout " and "-" forms the output voltage signal line of the relative humidity measurement of humidity sensor.Two signal wires are temperature sensor resistance R in addition
TSignal wire.Does relative humidity sensor adopt size less (less than 5mm? 0mm? the mm size) capacitance type humidity sensor, temperature sensor adopts thermal capacitance and all very little platinum resistance or the thermistor of volume.Because the output voltage signal of relative humidity sensor is to change to some extent with the temperature variation of sensor site, need be according to the output signal and the temperature variation relation of relative humidity sensor, compensate the output signal of relative humidity sensor with the signal of temperature sensor, improve the accuracy of relative humidity measurement.
When sensing probe 1 was connected with registering instrument 2, voltage output end "+" of registering instrument 2 linked to each other with "-" with sensing probe 2 cables "+" with "-", powers to relative humidity sensor; " Vout " of probe links to each other with a pair of measurement terminal height (H) low (L) end of registering instrument 2 with "-" signal wire.Temperature sensor R
TAnother of two signal wires and registering instrument 2 measurement terminal height (H) low (L) end is linked to each other.Registering instrument 2 calculates and changes out the rh value of fine porosity in the tested accurately architectural exterior-protecting construction according to the voltage signal of the relative humidity sensor output of sensing probe 1 and the resistance signal of temperature sensor.Put the water capacity (moisture) of suction curve and the relation of relative humidity according to tested building space enclosing structure material balance suction again, calculate the water capacity (moisture) of changing out tested architectural exterior-protecting construction.
The installation of sensing probe 1: sensing probe 1 general employing is pre-buried imbeds the dual mode installation with boring.To new building, observe the situation of change of its building enclosure internal moisture, adopt pre-buried mode.Building a wall and during placing concrete, as shown in Figure 3, sensing probe 1 is being imbedded body of wall 3 measuring positions in advance, signal wire is being exposed indoor at body of wall 3.For both building construction wall, need be in the hole that the vertical body of wall of monitoring location bores an about 5mm in aperture, the degree of depth in hole is determined (as shown in Figure 3) according to measuring needs, and sensing probe 1 is inserted into the bottom in hole, with fluid sealant the space of holing is filled up again.Then, the signal wire with sensing probe 1 links to each other with registering instrument 2.
Claims (1)
1. porous architectural exterior-protecting construction water capacity proving installation, it is characterized in that: registering instrument (2) adopts with sensing probe (1) and is electrically connected, and it is interior or exposed being fixed together of hollow cylinder housing (4) of 8-10mm less than 5mm length that described sensing probe (1) is packed in a diameter with the band mesh by relative humidity sensor and temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203089172U CN201477062U (en) | 2009-08-26 | 2009-08-26 | Moisture content measuring device for porous building envelope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203089172U CN201477062U (en) | 2009-08-26 | 2009-08-26 | Moisture content measuring device for porous building envelope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201477062U true CN201477062U (en) | 2010-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203089172U Expired - Fee Related CN201477062U (en) | 2009-08-26 | 2009-08-26 | Moisture content measuring device for porous building envelope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201477062U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822844A (en) * | 2014-03-04 | 2014-05-28 | 上海理工大学 | Moisture transfer performance testing device and method for space enclosing structure materials |
| CN113405745A (en) * | 2021-04-16 | 2021-09-17 | 付江洪 | House water leakage detection device |
-
2009
- 2009-08-26 CN CN2009203089172U patent/CN201477062U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822844A (en) * | 2014-03-04 | 2014-05-28 | 上海理工大学 | Moisture transfer performance testing device and method for space enclosing structure materials |
| CN113405745A (en) * | 2021-04-16 | 2021-09-17 | 付江洪 | House water leakage detection device |
| CN113405745B (en) * | 2021-04-16 | 2022-05-10 | 付江洪 | House water leakage detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20130826 |