CN206847724U - A kind of water droplet radar levelmeter - Google Patents
A kind of water droplet radar levelmeter Download PDFInfo
- Publication number
- CN206847724U CN206847724U CN201720368287.2U CN201720368287U CN206847724U CN 206847724 U CN206847724 U CN 206847724U CN 201720368287 U CN201720368287 U CN 201720368287U CN 206847724 U CN206847724 U CN 206847724U
- Authority
- CN
- China
- Prior art keywords
- diode
- resistance
- water droplet
- electric capacity
- triode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses a kind of water droplet radar levelmeter, including single-chip microcomputer, drive module and receiving module, the input of the single-chip microcomputer is connected with receiving module, the output end of the single-chip microcomputer is connected with drive module, the output end of the drive module is connected with transmitting and receives handover module, and transmitting receives the output end of handover module and the input of receiving module connects, one end that the transmitting receives handover module is also associated with water droplet transducer, the input of the single-chip microcomputer is also associated with keyboard and temperature-compensation circuit, the output end of the single-chip microcomputer is also associated with LCD and communication interface.The utility model is designed reasonably, the convenient measurement that thing position height is carried out according to different regions and measuring environment, and measurement accuracy is high, effectively improves the use quality of the level meter.
Description
Technical field
It the utility model is related to level meter technical field, more particularly to a kind of water droplet radar levelmeter.
Background technology
Level gauging is often referred to the height to material in closed in industrial processes or open container (solid or liquid level)
Degree is detected, if continuously being detected to height of materials, is referred to as continuous measurement.If only whether height of materials is arrived
Referred to as spacing measurement is detected up to a certain position, the instrument for completing this measurement task is called level meter.And existing thing position
The accuracy of meter measurement thing position height is relatively low, and adaptability is poor, is generally made up of analog circuit together with digital circuit, its reclaimed water
Drop radar driving voltage peak-to-peak value reaches upper kilovolt, it is difficult to avoids passing through ground wire and seals in interference to signal conditioning circuit and MCU, simultaneously
It is also possible to exist the interference such as potential man-made noise, power frequency in industry spot, using above having some limitations.
Utility model content
The purpose of this utility model is and a kind of water droplet radar thing proposed in order to solve shortcoming present in prior art
Position meter.
To achieve these goals, the utility model employs following technical scheme：
A kind of water droplet radar levelmeter, including single-chip microcomputer, drive module and receiving module, the input of the single-chip microcomputer with
Receiving module is connected, and the output end of the single-chip microcomputer is connected with drive module, and the output end of the drive module is connected with transmitting
Handover module is received, and the input for launching the output end for receiving handover module and receiving module connects, the transmitting reception is cut
One end of mold changing block is also associated with water droplet transducer, and the input of the single-chip microcomputer is also associated with keyboard and temperature-compensation circuit,
The output end of the single-chip microcomputer is also associated with LCD and communication interface.
Preferably, the drive module include photoelectrical coupler, resistance R1, resistance R2, resistance R3, resistance R4, electric capacity C1,
Electric capacity C2, electric capacity C3, triode Q1, triode Q2, triode Q3, diode D1, diode D2, diode D3, diode D4,
Transformer TR and inductance L1, wherein input of resistance R1 and electric capacity the C1 one end with photoelectrical coupler are connected, photoelectric coupling
The one end of the VCC ends of device respectively with resistance R2 and resistance R3 is connected, the resistance R3 other end respectively with triode Q1 and triode
Emitter stage of Q2 base stage connection, triode Q1 and triode the Q2 emitter stage with triode Q3 is connected, triode Q3 base
Pole is connected with a transformer TR pin, and transformer TR another pin connects resistance R4 and electric capacity C2 one end respectively,
Transformer TR another pin connects diode D1 positive pole and diode D3 negative pole, diode D1 negative pole and two respectively
Pole pipe D2 positive pole connection, diode D3 positive pole is connected with diode D4 negative pole, and diode D2 negative pole and diode
One end with inductance L1 of D4 positive pole, electric capacity C3 one end and water droplet transducer are connected, electric capacity the C3 other end and inductance L1
The other end connection.
Preferably, the diode D1 and diode D3 series connection, diode D2 and diode D4 series connection, and diode D1 and
Diode D3 is in parallel with diode D2 and diode D4.
Preferably, the other end of the electric capacity C2, the output end of photoelectrical coupler, triode Q2 colelctor electrode, triode
Q3 colelctor electrode, a transformer TR pin, the inductance L1 other end, one end of the electric capacity C3 other end and water droplet transducer
It is grounded.
Preferably, the receiving module include resistance R1, resistance R2, resistance R3, resistance R4, diode D1, diode D2,
Electric capacity C1, the first amplifier and the second amplifier, wherein resistance R1 one end are connected with water droplet transducer, the resistance R1 other end
Diode D1 positive pole, diode D2 negative pole and electric capacity C1 one end, the electric capacity C1 other end and the first amplification are connected respectively
The positive pole connection of device, the negative pole and output end of the first amplifier are connected with resistance R2 one end, and the resistance R2 other end connects respectively
Connecting resistance R4 one end and the negative pole of the second amplifier, the positive pole connection resistance R3 of the second amplifier one end, the second amplifier
Output end be connected with the resistance R4 other end.
Preferably, the negative pole of the diode D1 connects with diode D2 positive pole, and diode D1 negative pole, first puts
Big one end of device and the resistance R3 other end are grounded.
Preferably, the single-chip microcomputer is MSP430F149 single-chip microcomputers.
The beneficial effects of the utility model are：It is using photoelectrical coupler that the simulation of MCU digital circuits and drive circuit is electric
Road is isolated, from signal isolation transformer that drive circuit and signal condition, process circuit is completely isolated, to avoid doing
Disturb, effectively improve the measurement precision of the level meter, while pass through the water droplet radar transducer of larger transmission power and increase
Driving voltage conveniently carries out the measurement of thing position height, flexibility to improve measuring range according to different regions and measuring environment
By force, the utility model is designed reasonably, it is convenient that the measurement of thing position height is carried out according to different regions and measuring environment, and measure essence
Degree is high, effectively improves the use quality of the level meter.
Brief description of the drawings
Fig. 1 be the utility model proposes a kind of water droplet radar levelmeter design drawing；
Fig. 2 be the utility model proposes a kind of water droplet radar levelmeter drive module circuit diagram；
Fig. 3 be the utility model proposes a kind of water droplet radar levelmeter receiving module circuit diagram；
Fig. 4 be the utility model proposes a kind of water droplet radar levelmeter filtering and amplifying circuit figure；
Fig. 5 be the utility model proposes a kind of water droplet radar levelmeter peak value sampling circuit diagram；
Fig. 6 be the utility model proposes a kind of water droplet radar levelmeter auto-gain circuit figure；
Fig. 7 be the utility model proposes a kind of water droplet radar levelmeter principle schematic.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.
Reference picture 1-7, a kind of water droplet radar levelmeter, including single-chip microcomputer, drive module and receiving module, single-chip microcomputer it is defeated
Enter end to be connected with receiving module, the output end of single-chip microcomputer is connected with drive module, and the output end of drive module is connected with transmitting and connect
Handover module is received, and the input for launching the output end for receiving handover module and receiving module connects, transmitting receives handover module
One end be also associated with water droplet transducer, the input of single-chip microcomputer is also associated with keyboard and temperature-compensation circuit, single-chip microcomputer it is defeated
Go out end and be also associated with LCD and communication interface.
In the present embodiment, drive module include photoelectrical coupler, resistance R1, resistance R2, resistance R3, resistance R4, electric capacity C1,
Electric capacity C2, electric capacity C3, triode Q1, triode Q2, triode Q3, diode D1, diode D2, diode D3, diode D4,
Transformer TR and inductance L1, wherein input of resistance R1 and electric capacity the C1 one end with photoelectrical coupler are connected, photoelectric coupling
The one end of the VCC ends of device respectively with resistance R2 and resistance R3 is connected, the resistance R3 other end respectively with triode Q1 and triode
Emitter stage of Q2 base stage connection, triode Q1 and triode the Q2 emitter stage with triode Q3 is connected, triode Q3 base
Pole is connected with a transformer TR pin, and transformer TR another pin connects resistance R4 and electric capacity C2 one end respectively,
Transformer TR another pin connects diode D1 positive pole and diode D3 negative pole, diode D1 negative pole and two respectively
Pole pipe D2 positive pole connection, diode D3 positive pole is connected with diode D4 negative pole, and diode D2 negative pole and diode
One end with inductance L1 of D4 positive pole, electric capacity C3 one end and water droplet transducer are connected, electric capacity the C3 other end and inductance L1
Other end connection, diode D1 and diode D3 series connection, diode D2 and diode D4 series connection, and diode D1 and diode
D3 is in parallel with diode D2 and diode D4, the electric capacity C2 other end, the output end of photoelectrical coupler, triode Q2 current collection
Pole, triode Q3 colelctor electrode, transformer TR a pin, the inductance L1 other end, the electric capacity C3 other end and water droplet change
One end of energy device is grounded, and receiving module includes resistance R1, resistance R2, resistance R3, resistance R4, diode D1, diode D2, electricity
Hold C1, the first amplifier and the second amplifier, wherein resistance R1 one end to be connected with water droplet transducer, the resistance R1 other end point
Not Lian Jie diode D1 positive pole, diode D2 negative pole and electric capacity C1 one end, the electric capacity C1 other end and the first amplifier
Positive pole connection, the negative pole and output end of the first amplifier be connected with resistance R2 one end, and the resistance R2 other end connects respectively
Resistance R4 one end and the negative pole of the second amplifier, the positive pole connection resistance R3 of the second amplifier one end, the second amplifier
Output end is connected with the resistance R4 other end, and diode D1 negative pole connects with diode D2 positive pole, and diode D1's is negative
The other end of pole, one end of the first amplifier and resistance R3 is grounded, and single-chip microcomputer is MSP430F149 single-chip microcomputers.
In the present embodiment, the water droplet series excitation for producing the 50k Hz that dutycycle is 2% by MSP430F149 single-chip microcomputers first is encouraged
Signal, water droplet gang up overpower amplification and transformer boost, generate high frequency water droplet driving voltage, drive water droplet radar transducer
Launch water droplet radar, while the timer of single-chip microcomputer starts timing.It is reflected back when water droplet radar runs into testee, echo
The voltage signal that peak value is millivolt level is received and converted to by transducer again, obtained after amplified, filtering, automatic growth control steady
Determine echo-signal, then obtain by voltage comparator circuit the timer timing of interrupt signal triggering single-chip microcomputer and terminate, thus obtain
Propagation time of the water droplet radar in whole process.Water droplet radar can be calculated by temperature-compensation circuit and corresponding calculation formula again
Spread speed under current environment, thus, it is possible to calculate the propagation distance and thing position height of water droplet radar.So circulation is surveyed
Amount.Often measuring 10 groups of data just takes an average value to store and show.Meanwhile data can also by RS232 communication interfaces or
Short range wireless transmission module is communicated with external equipment.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality
New technical scheme and its utility model design are subject to equivalent substitution or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (7)
1. a kind of water droplet radar levelmeter, including single-chip microcomputer, drive module and receiving module, it is characterised in that the single-chip microcomputer
Input be connected with receiving module, the output end of the single-chip microcomputer is connected with drive module, the output end of the drive module
It is connected with transmitting and receives handover module, and the input for launching the output end for receiving handover module and receiving module connects, it is described
One end that transmitting receives handover module is also associated with water droplet transducer, and the input of the single-chip microcomputer is also associated with keyboard and temperature
Compensation circuit, the output end of the single-chip microcomputer are also associated with LCD and communication interface.
2. a kind of water droplet radar levelmeter according to claim 1, it is characterised in that the drive module includes photoelectricity coupling
Clutch, resistance R1, resistance R2, resistance R3, resistance R4, electric capacity C1, electric capacity C2, electric capacity C3, triode Q1, triode Q2, three poles
Pipe Q3, diode D1, diode D2, diode D3, diode D4, transformer TR and inductance L1, wherein resistance R1 and electric capacity C1
One end be connected with the input of photoelectrical coupler, the VCC ends of photoelectrical coupler one end with resistance R2 and resistance R3 respectively
Connection, the base stage of the resistance R3 other end respectively with triode Q1 and triode Q2 are connected, triode Q1 and triode Q2 hair
Emitter stage of the emitter-base bandgap grading with triode Q3 is connected, and triode Q3 base stage is connected with a transformer TR pin, transformer TR
Another pin connect resistance R4 and electric capacity C2 one end respectively, transformer TR another pin connects diode D1 respectively
Positive pole and diode D3 negative pole, diode D1 negative pole is connected with diode D2 positive pole, diode D3 positive pole and two
Pole pipe D4 negative pole connection, and one end with inductance L1 of diode D2 negative pole and diode D4 positive pole, the one of electric capacity C3
End is connected with water droplet transducer, and the electric capacity C3 other end is connected with the inductance L1 other end.
3. a kind of water droplet radar levelmeter according to claim 2, it is characterised in that the diode D1 and diode
D3 connects, diode D2 and diode D4 series connection, and diode D1 and diode D3 is in parallel with diode D2 and diode D4.
A kind of 4. water droplet radar levelmeter according to claim 2, it is characterised in that the other end, the light of the electric capacity C2
The output end of electric coupler, triode Q2 colelctor electrode, triode Q3 colelctor electrode, transformer TR a pin, inductance L1
The other end, the electric capacity C3 other end and one end of water droplet transducer be grounded.
5. a kind of water droplet radar levelmeter according to claim 1, it is characterised in that the receiving module includes resistance
R1, resistance R2, resistance R3, resistance R4, diode D1, diode D2, electric capacity C1, the first amplifier and the second amplifier, wherein
Resistance R1 one end is connected with water droplet transducer, and the resistance R1 other end connects diode D1 positive pole, diode D2 respectively
One end of negative pole and electric capacity C1, the electric capacity C1 other end are connected with the positive pole of the first amplifier, the negative pole of the first amplifier and defeated
Going out end to be connected with resistance R2 one end, the resistance R2 other end connects resistance R4 one end and the negative pole of the second amplifier respectively,
The positive pole connection resistance R3 of second amplifier one end, the output end of the second amplifier are connected with the resistance R4 other end.
A kind of 6. water droplet radar levelmeter according to claim 5, it is characterised in that the negative pole and two of the diode D1
Pole pipe D2 positive pole connection, and the other end of diode D1 negative pole, one end of the first amplifier and resistance R3 is grounded.
7. a kind of water droplet radar levelmeter according to claim 1, it is characterised in that the single-chip microcomputer is MSP430F149
Single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720368287.2U CN206847724U (en) | 2017-04-10 | 2017-04-10 | A kind of water droplet radar levelmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720368287.2U CN206847724U (en) | 2017-04-10 | 2017-04-10 | A kind of water droplet radar levelmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206847724U true CN206847724U (en) | 2018-01-05 |
Family
ID=60792039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720368287.2U Expired - Fee Related CN206847724U (en) | 2017-04-10 | 2017-04-10 | A kind of water droplet radar levelmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206847724U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240873A (en) * | 2018-01-29 | 2018-07-03 | 山西华仁通电力科技有限公司 | A kind of station boiler sound wave thermometric sending device |
| CN112525295A (en) * | 2020-11-03 | 2021-03-19 | 福建福清核电有限公司 | Stable temperature compensation measurement method for guided wave radar liquid level meter |
-
2017
- 2017-04-10 CN CN201720368287.2U patent/CN206847724U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240873A (en) * | 2018-01-29 | 2018-07-03 | 山西华仁通电力科技有限公司 | A kind of station boiler sound wave thermometric sending device |
| CN112525295A (en) * | 2020-11-03 | 2021-03-19 | 福建福清核电有限公司 | Stable temperature compensation measurement method for guided wave radar liquid level meter |
| CN112525295B (en) * | 2020-11-03 | 2022-09-20 | 福建福清核电有限公司 | Stable temperature compensation measurement method for guided wave radar liquid level meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101236188B (en) | Soil moisture wireless measuring apparatus | |
| CN109506727B (en) | Ultrasonic flow measurement method and low-power consumption ultrasonic flowmeter | |
| CN203687887U (en) | Laser snow depth measurement instrument | |
| CN206847724U (en) | A kind of water droplet radar levelmeter | |
| CN201417152Y (en) | Portable multi-parameter cropland information acquisition instrument | |
| Li et al. | The design of remote temperature monitoring system | |
| CN106323412A (en) | High frequency interference-elimination type water level pre-warning system based on internet of things technology | |
| CN206132798U (en) | Ultrasonic wind speed and wind direction measuring device | |
| CN104950176A (en) | Non-contact internal resistance measuring device for energy storage systems of electric vehicles | |
| CN202453327U (en) | Ultrasonic wall detector | |
| CN106932447A (en) | The composite construction sensor and its compound modification method of a kind of cultivation matrix water content electrical conductivity | |
| CN204255461U (en) | Ultrasonic solution position detecting system | |
| CN201000448Y (en) | Soil moisture wireless measuring apparatus | |
| CN106596644B (en) | Measuring method and device for non-invasively measuring soil moisture | |
| CN107966476A (en) | A kind of chaos Time Domain Reflectometry soil water meauring device and method | |
| CN203037881U (en) | Pressure type pluviometer | |
| CN203930061U (en) | A kind of supersonic range finder | |
| CN106441497A (en) | Signal buffering and amplifying type water level early warning system based on Internet-of-Things technology | |
| CN203405234U (en) | Wireless intelligent multi-functional agriculture monitoring device | |
| CN208257861U (en) | One kind being based on Internet of Things soil fertility sensor | |
| CN109323730A (en) | Based on TDC-GP30 double-channel gas ultrasonic flowmeter and application method | |
| CN205593556U (en) | Novel high tension cable connects on -line monitoring device | |
| CN104459088A (en) | Wireless type-based soil temperature and moisture gradient measuring system | |
| CN205210277U (en) | A aeroengine data acquisition device of taking a trial run | |
| CN203688579U (en) | Anemometer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 Termination date: 20200410 |