CN107084691A - A kind of water film thickness sensor - Google Patents
A kind of water film thickness sensor Download PDFInfo
- Publication number
- CN107084691A CN107084691A CN201710504961.XA CN201710504961A CN107084691A CN 107084691 A CN107084691 A CN 107084691A CN 201710504961 A CN201710504961 A CN 201710504961A CN 107084691 A CN107084691 A CN 107084691A
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- Prior art keywords
- module
- film thickness
- microwave
- water film
- signal
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 230000036541 health Effects 0.000 claims abstract description 3
- 239000004215 Carbon black (E152) Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- 238000001259 photo etching Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 10
- 238000012546 transfer Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B15/00—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
- G01B15/02—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring thickness
- G01B15/025—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring thickness by measuring absorption
Abstract
The invention discloses a kind of water film thickness sensor, including：Circuit board and the microwave antenna being arranged on the circuit board, electronic device and row's pin；The electronic device can produce the first signal and secondary signal, and first signal is launched through the microwave antenna and its echo is received, and be exported through row's pin to external system after the secondary signal and the echo are nursed one's health.The device have the advantages that：There is accuracy of detection height, strong antijamming capability, it is adaptable to various climatic environments, and be adapted to operation all the year round, without surface maintenance, be easy to be integrated to a variety of meteorological equipments.
Description
Technical field
The invention belongs to water film thickness detection technique field, and in particular to a kind of water film thickness sensor.
Background technology
Surface gathered water is live very common phenomenon, either Route for pedestrians or car lane, no matter urban road is also
It is backroad, or highway, road ponding all occurs in the rainy day in various degree.Road ponding not only easily make road surface,
Roadbed wrecks, more with the presence of potential safety hazard.The walking of Route for pedestrians rainy day ponding influence people is convenient, and car lane is to row
Car security presence hidden danger, particularly express highway pavement ponding seriously threatens traffic safety, so monitoring measurement road road in real time
The water film thickness of area water, and Surveillance center or headquarter are reported to, have great importance for managerial decision making.
Ponding measurement conventional now be usually surveyed by manual site, reading, report or utilize optics, electricity sensing
The methods such as device output signal.There is error greatly in artificial detection, the problems such as easy missing inspection, poor real, subjective factor influence larger；
Also there is not convenient O＆M, the easy aging misalignment of long-play, easily by external table dusty complexion in optics, electric sensor
The shortcomings of soil accumulation can not be measured.
The content of the invention
It is an object of the invention to overcome deficiency of the prior art there is provided a kind of water film thickness sensor, with detection
The advantages of precision height, strong antijamming capability, it is adaptable to various climatic environments, and it is adapted to operation all the year round, without surface maintenance, it is easy to
It is integrated to a variety of meteorological equipments.
To solve prior art problem, the invention discloses a kind of water film thickness sensor, including：Circuit board and setting
Microwave antenna, electronic device and row's pin on circuit boards；
Electronic device can produce the first signal and secondary signal, and the first signal is launched through microwave antenna and its echo is received,
And after secondary signal and echo are nursed one's health through arrange pin export to external system.
Further, electronic device includes：Module, power distribution module, transceiver module, power phases detection occur for microwave
Module and input and output protection module；
Module occurs for microwave by microwave signal transmission to power distribution module, and microwave signal is divided into the first letter by power distribution module
Number and secondary signal；The first signal that first signal can be launched and be received by microwave antenna by transceiver module
Echo is transmitted to power phases detection module；Power phases detection module can be protected secondary signal and echo by input and output
Module transfer is protected to external system.
Further, radome is additionally provided with circuit board, electronic device is arranged in radome.
Further, in addition to power amplifier module, power amplifier module is connected between transceiver module and microwave antenna.
Further, input and output protection module has electrostatic discharge protective circuit and voltage limiting circuit.
Further, in addition to temperature self-compensation circuit, the output end of temperature self-compensation circuit connects microwave respectively
Generation module, power distribution module, transceiver module and power phases detection module are so as to realize auto thermal compensation.
Further, it is voltage controlled oscillator chip that module, which occurs, for microwave.
Further, microwave antenna is the rectangular-shaped micro-strip day being made of photoetching corrosion hydrocarbon ceramic substrate
Line.
Further, microwave antenna has one to be used for the window that circuit board is fed.
Further, the spacing of row's pin is 2.54mm.
The beneficial effect that the present invention reaches：
1. accurately measurement is covered in the water film thickness on road surface, measurement range reaches 0~6mm, and measurement accuracy reaches 0.01mm.
2. using the single neilsbed connector of standard 2.54mm spacing, external printed circuit board is conveniently attached to.Utilize voltage stabilizing
Direct current 5V powers, and whole biosensor power consumption is within 200mW, and output result is to be easy on 0~5V voltages of standard, Electronic Performance
It is integrated to a variety of collecting devices.
3. using a variety of anti-interference devices, go for various harsh weather.Using automatic temperature-adjusting auto compensatng circuit,
Measurement result will not be influenceed because of the change of ambient temperature.
Brief description of the drawings
Fig. 1 is the structural representation of a preferred embodiment of the invention；
Fig. 2 is the circuit connection diagram of embodiment illustrated in fig. 1.
Reference：
1 Transfer Medium；2 microwave antennas；3 circuit boards；4 electronic devices；5 radomes；6 row's pins；7 moisture films to be measured.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following examples are only used for clearly illustrating the present invention
Technical scheme, and can not be limited the scope of the invention with this.
As illustrated in fig. 1 and 2, microwave survey rain water depth on road surface sensor main will be by high-frequency circuit board 3, cover it surface
Microwave antenna 2, be welded on all kinds of electronic devices 4 of its lower surface, be fixed on its lower surface metal electro-magnetic shielding cover 5 and
2.54mm spacing row's pin 6 for being connected to external harmoniousness system is constituted.Electronic device 4 includes：Model MGM microwave occurs
Module, model PDM power distribution module, model REM transceiver module, model PPDM power phases detection module
And model IOPM input and output protection module.
Below by way of microwave transfer medium 1 and the specific implementation of the signal water film thickness measurement of moisture film to be measured 7：
The high-frequency microwave signal that electronic device 4 occurs（Decimetric wave wave band）, microwave antenna 2 is delivered to by the cabling of circuit board 3, so
After be transmitted from microwave by Transfer Medium 1, reach moisture film 7 to be measured.Microwave passes through after moisture film 7 to be measured, and a part is absorbed,
A part is reflected back toward Transfer Medium 1, is received after penetrating and by microwave antenna 2.The microwave reflected is arrived by circuit board 3 again
Electronic device 4 processing after, output water film thickness voltage signal to arrange pin 6.Above-mentioned measurement process, can without outer CPU control
With automatic cycle, continuously perform, external harmoniousness system only needs continuously to gather in real time.
Temperature self-compensation circuit is additionally provided with circuit board 3, the output end of temperature self-compensation circuit connects micro- respectively
Module, power distribution module, transceiver module and power phases detection module occur for ripple to realize auto thermal compensation.
The microwave antenna 2 is on the hydrocarbon ceramic substrate of high-k, of the method for photoetching corrosion, to make
The one piece of rectangular-shaped microstrip antenna gone out, while a small window is carved on microwave antenna 2, for being fed from circuit board 3.
The metal electro-magnetic shielding cover 5 can prevent built-in field microwave signal to be radiated lower surface, to avoid influence
The operation of external harmoniousness system.It can prevent external electromagnetic field interference signal from entering this microwave remote sensor simultaneously, it is to avoid measurement knot
Fruit is inaccurate or causes working sensor abnormal.
Input and output protection module in the electronic device 4 of the inside of row's pin 6 connection have electrostatic discharge protective circuit and
Voltage limiting circuit, even if external interface has abnormal voltage to input or user's abnormal operation, this can be protected to greatest extent
Sensor, prevents permanent damages.
The electric signal of microwave frequency band is produced by internal independent voltage controlled oscillator chip, actual measurement is about -30DB power.This
Signal, which is entered, is divided into two paths of signals after power distribution module：Enter transceiver module all the way, put by power amplifier module filtering
Microwave antenna is transferred to after big and carries out Microwave emission, the microwave echoes launched receive by antenna and back into power phase
Position detection module, it is -45DB~-55DB that this, which returns to microwave power,；Another road is directly entered power phases detection module, and this road is micro-
Wave power is about -50DB.Above-mentioned two microwave signal enters input and output protection module after passing through detection module, then exports
To external harmoniousness system, sensor is by outputting standard 0~5V analog voltage signals, and this signal can be with completely compatible to various collection
Equipment, instrument and meter, integrated system etc..
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and deformation can also be made, these improve and deformed
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of water film thickness sensor, it is characterised in that：Including：Circuit board and the microwave day being arranged on the circuit board
Line, electronic device and row's pin；
The electronic device can produce the first signal and secondary signal, and first signal is launched simultaneously through the microwave antenna
Receive its echo, and exported through row's pin to external system after the secondary signal and the echo are nursed one's health.
2. a kind of water film thickness sensor according to claim 1, it is characterised in that：The electronic device includes：Microwave
Generation module, power distribution module, transceiver module, power phases detection module and input and output protection module；
Module occurs for the microwave by microwave signal transmission to the power distribution module, and the power distribution module will be described micro-
Ripple signal is divided into first signal and the secondary signal；The transceiver module can pass through first signal described micro-
The echo for first signal that wave antenna is launched and received is transmitted to the power phases detection module；The work(
Rate phase detecting module can be transmitted the secondary signal and the echo to outside by the input and output protection module
System.
3. a kind of water film thickness sensor according to claim 2, it is characterised in that：Screen is additionally provided with the circuit board
Cover is covered, the electronic device is arranged in the radome.
4. a kind of water film thickness sensor according to claim 2, it is characterised in that：Also include power amplifier module, institute
Power amplifier module is stated to be connected between the transceiver module and microwave antenna.
5. a kind of water film thickness sensor according to claim 2, it is characterised in that：The input and output protection module tool
There are electrostatic discharge protective circuit and voltage limiting circuit.
6. a kind of water film thickness sensor according to claim 2, it is characterised in that：Also include temperature self-compensation electricity
Road, the output end of the temperature self-compensation circuit connects the microwave and occurs module, power distribution module, transceiver module respectively
With power phases detection module so as to realize auto thermal compensation.
7. a kind of water film thickness sensor according to claim 1, it is characterised in that：It is voltage-controlled that module, which occurs, for the microwave
Oscillator chip.
8. a kind of water film thickness sensor according to claim 1, it is characterised in that：The microwave antenna is to use photoetching
The rectangular-shaped microstrip antenna that corrosion hydrocarbon ceramic substrate is made.
9. a kind of water film thickness sensor according to claim 1, it is characterised in that：The microwave antenna has one to be used for
The window of the circuit board feed.
10. a kind of water film thickness sensor according to claim 1, it is characterised in that：The spacing of row's pin is
2.54mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710504961.XA CN107084691A (en) | 2017-06-28 | 2017-06-28 | A kind of water film thickness sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710504961.XA CN107084691A (en) | 2017-06-28 | 2017-06-28 | A kind of water film thickness sensor |
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| Publication Number | Publication Date |
|---|---|
| CN107084691A true CN107084691A (en) | 2017-08-22 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710504961.XA Pending CN107084691A (en) | 2017-06-28 | 2017-06-28 | A kind of water film thickness sensor |
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| Country | Link |
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| CN (1) | CN107084691A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798835A (en) * | 2019-02-20 | 2019-05-24 | 同济大学 | Asphalt pavement surface water film thickness single-point monitoring device and installation method |
| CN111481210A (en) * | 2020-04-28 | 2020-08-04 | 杭州电子科技大学 | Miniature sensor based on magnetic coupling does not have blood glucose concentration of noninvasive monitoring |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3940710A1 (en) * | 1989-12-09 | 1991-06-13 | Tzn Forschung & Entwicklung | DEVICE FOR DETERMINING THE MEDIUM WATER FILM THICKNESS ON ROAD SURFACES |
| CN102645154A (en) * | 2012-05-03 | 2012-08-22 | 东南大学 | Water film thickness detection sensor and detection method thereof based on annular bridge structure |
| CN204536539U (en) * | 2015-03-30 | 2015-08-05 | 深圳市海骏电子科技有限公司 | A kind of flat plane antenna type microwave remote sensor |
| CN105116472A (en) * | 2015-08-18 | 2015-12-02 | 东南大学 | Pluviometer based on a water film thickness sensor |
| CN206944956U (en) * | 2017-06-28 | 2018-01-30 | 苏州曼德克光电有限公司 | A kind of water film thickness sensor |
-
2017
- 2017-06-28 CN CN201710504961.XA patent/CN107084691A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3940710A1 (en) * | 1989-12-09 | 1991-06-13 | Tzn Forschung & Entwicklung | DEVICE FOR DETERMINING THE MEDIUM WATER FILM THICKNESS ON ROAD SURFACES |
| CN102645154A (en) * | 2012-05-03 | 2012-08-22 | 东南大学 | Water film thickness detection sensor and detection method thereof based on annular bridge structure |
| CN204536539U (en) * | 2015-03-30 | 2015-08-05 | 深圳市海骏电子科技有限公司 | A kind of flat plane antenna type microwave remote sensor |
| CN105116472A (en) * | 2015-08-18 | 2015-12-02 | 东南大学 | Pluviometer based on a water film thickness sensor |
| CN206944956U (en) * | 2017-06-28 | 2018-01-30 | 苏州曼德克光电有限公司 | A kind of water film thickness sensor |
Non-Patent Citations (1)
| Title |
|---|
| 何杜成 等: "《上海市工人业余学校课本 电子技术 第三册》" * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798835A (en) * | 2019-02-20 | 2019-05-24 | 同济大学 | Asphalt pavement surface water film thickness single-point monitoring device and installation method |
| CN111481210A (en) * | 2020-04-28 | 2020-08-04 | 杭州电子科技大学 | Miniature sensor based on magnetic coupling does not have blood glucose concentration of noninvasive monitoring |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170822 |
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| RJ01 | Rejection of invention patent application after publication |