CN203203624U - Humiture detector - Google Patents
Humiture detector Download PDFInfo
- Publication number
- CN203203624U CN203203624U CN 201320206219 CN201320206219U CN203203624U CN 203203624 U CN203203624 U CN 203203624U CN 201320206219 CN201320206219 CN 201320206219 CN 201320206219 U CN201320206219 U CN 201320206219U CN 203203624 U CN203203624 U CN 203203624U
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- humiture detector
- protective cover
- utility
- humidity
- humicap
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Abstract
The utility model provides a humiture detector, relating to the technical field of meteorology monitoring equipment. The humiture detector comprises a protective cover, a humidity sensitive capacitor arranged in the humiture detector and a switching circuit electrically connected with the humidity sensitive capacitor, wherein a communication cablis led out of the switching circuit, and is connected with external computer equipment via an RS485/232 switching joint. The humiture detector is a novel intelligent data transmission type sensor for detecting meteorological essential factors, has relatively high detection precision and reliability and relatively long service life, has a relatively long transmission distance by employing an RS485 interface, and can be directly connected with a personal computer by utilizing the simple RS485/232 switching joint, wherein special secondary instruments are not required, and use is very simple and convenient.
Description
Technical field
The utility model relates to the weather monitoring equipment technical field, be specifically related to a kind of freeway management system that is applicable to, can be for highway communication department provide highway communication environment weather data the most accurately and reliably, thus instruct traffic department to make the humiture detecting device of corresponding decision.
Background technology
The inclement weather phenomenon can influence express way driving safety, very easily causes the generation of traffic hazard.Can cause visibility to reduce as dense fog and precipitation weather, sleety weather can cause the road surface wet and slippery, strong beam wind influences vehicle run stability, icy on road, frost can cause surface friction coefficient obviously to reduce, the long-distance of hot weather run at high speed, cause very easily and blow out and fatigue driving that what these weather phenomena all can be direct or indirect brings hidden danger to traffic safety.In China, highway has been installed some road weather stations in the construction period according to designing requirement, these weather stations that the spacing majority is set is far away, average 50-80 kilometers arrange a cover, can not in time understand road and the pavement state situation of change in local location or crucial location, can't carry out monitoring and warning and assessment to the local pavement state of key, also just can not issue express highway pavement situation early warning information in time, exactly.The weather station that current highway adopts mostly is imported product greatly, price is higher, be subjected to the influence of construction fund to be difficult to intensive setting, and single weather station volume is bigger, number of sensors is many, detection at a certain meteorological element all need arrange special-purpose sensor separately, then need bury sensor underground under the road surface at the detection of pavement behavior, and construction and maintenance cost are higher.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of to be had than high measurement accuracy and reliability, and the humiture detecting device than the long life is arranged.
Technical problem to be solved in the utility model realizes by the following technical solutions:
A kind of humiture detecting device, comprise protective cover, be located at the humicap in the protective cover and the change-over circuit that is electrically connected with humicap, lead to telecommunication cable on the described change-over circuit, described telecommunication cable is connected to external computer device through the RS485/232 X-over.
Described humicap is made up of glass end liner, bottom electrode, humidity-sensitive material assembly, top electrode, and described humidity-sensitive material assembly is between top electrode and bottom electrode, and in top electrode and bottom electrode series connection, described glass end liner is positioned at the bottom electrode bottom.
Described protective cover is the insulator of full skirt shape.
Described telecommunication cable is 4 core telecommunication cables.
The beneficial effects of the utility model are: the utility model is the meteorological element detecting sensor of intelligent several biography formula novelties, but has higher detection precision reliability, and have than long serviceable life, sensor can adopt the RS485 interface that transmitting range far away is arranged, adopt simple RS485/RS232 changeover plug just directly can be connected with personal computer, and needn't adopt special-purpose secondary instrument, use very simple and convenient.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model humicap decomposing schematic representation.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1 and Figure 2, a kind of humiture detecting device, comprise protective cover 1, be located at the humicap in the protective cover 1 and the change-over circuit that is electrically connected with humicap, lead to telecommunication cable 2 on the change-over circuit, telecommunication cable 2 is connected to external computer device through the RS485/232 X-over, humicap is made up of glass end liner 6, bottom electrode 5, humidity-sensitive material assembly 4, top electrode 3, humidity-sensitive material assembly 4 is between top electrode 3 and bottom electrode 5, and in top electrode 3 and bottom electrode 5 series connection, glass end liner 6 is positioned at bottom electrode 5 bottoms.Protective cover 1 is the insulator of full skirt shape, and telecommunication cable 2 is 4 core telecommunication cables.
Upper and lower electrode becomes to be connected in series with two electric capacity that the humidity-sensitive material assembly constitutes, and the humidity-sensitive material assembly is a kind of high molecular polymer, and its specific inductive capacity changes along with the relative humidity variations of environment.When ambient humidity changed, the electric capacity of humidity-sensitive element changed thereupon, and namely when relative humidity increased, the humicap amount increased thereupon, otherwise reduced (electric capacity is usually between 48～56pf).The change-over circuit of sensor converts the humicap variable quantity to voltage to be changed, and corresponding to the variation of relative humidity 0～100%RH, the output of sensor is the linear change of 0～1v.
Technical indicator:
Temperature measurement range :-40-75 ℃ of moisture measurement scope: 0-100%RH
Temperature measurement accuracy: ± 0.1 ℃ of moisture measurement precision: ± 0.1%RH
Temperature resolution: 0.01 ℃ of humidity resolution: 0.03%RH
Temperature operating voltage: 12VDC humidity operating voltage: 12VDC
The optional output signal of output signal: RS232/485/422: RS232/485/422 is optional.
Points for attention:
1. because temperature, humidity are to hand over physical quantity slowly, so the sampling period should 〉=1 second.
2. because the humiture detecting device is made up of special chemical material, and extensive chemical is polluted the thorough damage that may cause sensor, should avoid, in order to guarantee its precision and increase the service life that suggestion checks once every year at least as far as possible.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the instructions just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. humiture detecting device, it is characterized in that: comprise protective cover, be located at the humicap in the protective cover and the change-over circuit that is electrically connected with humicap, lead to telecommunication cable on the described change-over circuit, described telecommunication cable is connected to external computer device through the RS485/232 X-over.
2. humiture detecting device according to claim 1, it is characterized in that: described humicap is made up of glass end liner, bottom electrode, humidity-sensitive material assembly, top electrode, described humidity-sensitive material assembly is between top electrode and bottom electrode, and in top electrode and bottom electrode series connection, described glass end liner is positioned at the bottom electrode bottom.
3. humiture detecting device according to claim 1, it is characterized in that: described telecommunication cable is 4 core telecommunication cables.
4. humiture detecting device according to claim 1, it is characterized in that: described protective cover is the insulator of full skirt shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320206219 CN203203624U (en) | 2013-04-23 | 2013-04-23 | Humiture detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320206219 CN203203624U (en) | 2013-04-23 | 2013-04-23 | Humiture detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203203624U true CN203203624U (en) | 2013-09-18 |
Family
ID=49147724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320206219 Expired - Fee Related CN203203624U (en) | 2013-04-23 | 2013-04-23 | Humiture detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203203624U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988054A (en) * | 2019-12-10 | 2020-04-10 | 朱义法 | Temperature compensation structure and compensation method of capacitive humidity sensor |
-
2013
- 2013-04-23 CN CN 201320206219 patent/CN203203624U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988054A (en) * | 2019-12-10 | 2020-04-10 | 朱义法 | Temperature compensation structure and compensation method of capacitive humidity sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20150423 |
|
| EXPY | Termination of patent right or utility model |