CN204064399U - A kind of Split ultrasonic level meter - Google Patents
A kind of Split ultrasonic level meter Download PDFInfo
- Publication number
- CN204064399U CN204064399U CN201420258931.7U CN201420258931U CN204064399U CN 204064399 U CN204064399 U CN 204064399U CN 201420258931 U CN201420258931 U CN 201420258931U CN 204064399 U CN204064399 U CN 204064399U
- Authority
- CN
- China
- Prior art keywords
- level meter
- ultrasonic
- split
- main frame
- signal
- 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
A kind of Split ultrasonic level meter, is made up of Split ultrasonic level meter main frame and ultrasonic probe, Split ultrasonic level meter main frame with adopt digital form to carry out signal between ultrasonic probe to communicate.There is analog signal output, digital signal output and many group on-off model output function modules simultaneously.The transmitting that ultrasonic probe inside includes the work of driving ultrasonic transducer drives electronic unit, for receiving the echo signal processing electronic unit of echoed signal and controlling the single-chip microcomputer of two cell operation.
Description
Technical field
The utility model relates to a kind of Split ultrasonic level meter, belongs to level gauging technical field.
Background technology
Split ultrasonic level meter is the instrument of the height of materials utilized in acoustic reflection principle measuring vessel, can measure also display object place value (liquid level or material level), output signal teletransmission to master-control room host computer.Split ultrasonic level meter is made up of main frame and ultrasonic probe, and Fig. 1 is main frame and the probe composition structural drawing of known Split ultrasonic level meter.Ultrasonic probe is connected with Split ultrasonic level meter main frame by the cable of being drawn by it, is packaged with ultrasonic transducer in ultrasonic probe, and this transducer is the single transducer of transmitting-receiving unification; Include in Split ultrasonic level meter main frame and drive ultrasonic transducer launch hyperacoustic transducer drive electronic unit and amplify the reception electronic unit receiving echoed signal, two electronic units are worked by Single-chip Controlling, Single-chip Controlling electron emission unit periodically drives ultrasonic transducer, and process receives the echoed signal that electronic unit identifies, and calculates measurement data.Measurement result by LCD liquid crystal display, and uploads to master-control room, and master-control room controls other equipment according to the height of thing place value and operates accordingly, realizes the automatic control to production run.
Existing Split ultrasonic level meter, the signal transmitted between its ultrasonic probe and main frame is simulating signal, namely comprise the impulse ejection voltage of the nearly kilovolt driving ultrasonic probe work and the echo feeble signal of only millivolt level, echoed signal to be received by Split ultrasonic level meter main frame by cable and carries out amplifying can identify.Echoed signal is easily subject to outside electromagnetic interference and mixes excessive noise; Echoed signal faint in addition can produce larger decay by during longer signal cable, makes main frame amplify identification difficulty to it.Extraneous strong electromagnetic interference noise also may flood faint echoed signal, causes the None-identified of echo or is amplified by noise, forming the measured value of mistake.
Utility model content
The utility model proposes the solution to above-mentioned Split ultrasonic level meter deficiency, namely for driving the transducer drive electronic unit of ultrasonic transducer work, moving in ultrasonic probe for receiving the reception electronic unit that identifies echoed signal and controlling the single-chip microcomputer of two cell operation from Split ultrasonic level meter main frame, hyperacoustic transmitting and reception all complete in probe, real echoed signal is identified by the receiving element in probe and single-chip microcomputer, has obtained correct distance measure.What transmit between ultrasonic probe and Split ultrasonic level meter main frame is the digital signal representing measurement data, digital signal allows to transmit in very long cable and interference-free, also undamped sorrow, Split ultrasonic level meter main frame can be detected data reliably, accurately carries out calculating and the process of thing place value.Carry out digital communication between Split ultrasonic level meter main frame and probe, can carry out corresponding control to the level gauging of ultrasonic probe and receive measurement data, Split ultrasonic level meter main frame also needs to power to the electronic unit in probe simultaneously.
Identify that the receiving element of echoed signal moves in ultrasonic probe due to ultrasonic transducer driver element and for receiving, the reception process of hyperacoustic transmitting and echo all completes in probe, can thoroughly eliminate the outside electromagnetic interference formed due to longer stube cable, avoid the decaying echoes signal due to longer stube cable, echoed signal can be identified effectively reliably by the single-chip microcomputer be placed in probe, forms correct measurement data.
Simultaneously because the part such as transmitter unit and echo signal processing unit moves in ultrasonic probe, therefore main frame inside can have sufficient space to increase some new functions, bound as measured value is reported to the police, many group relaies control and various protocols and interface to host computer teletransmission digital signal, to meet the different demands of Different field Survey control.These functions are completed by the single-chip microcomputer in Split ultrasonic level meter and related circuit and device.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is main frame and the ultrasonic probe composition structural representation of known Split ultrasonic level meter
Fig. 2 is the utility model Split ultrasonic level meter main frame and ultrasonic probe composition structural representation.
Fig. 3 is the utility model Split ultrasonic level meter host function block diagram.
Fig. 4 is the utility model Split ultrasonic level meter probe combined structure schematic diagram.
Embodiment
Propose 1 preferred specific embodiment (infinite) herein, specifically details are as follows.
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
As shown in Figure 2, whole Split ultrasonic level meter is made up of main frame and ultrasonic probe, main frame mainly contains following functional module: Power convert, display module, Single Chip Microcomputer (SCM) system and signal output module, can corresponding control be carried out to the level gauging of ultrasonic probe and receive measurement data, and complete thing position calculating, display and remote transfer signal to host computer; Be integrated with ultrasonic transducer in ultrasonic probe and launch driving electronic unit, for receiving the echo signal reception electronic unit of echoed signal and controlling the single-chip microcomputer of two cell operation, for driving ultrasonic transducer work, and receive and identify the effective echo be reflected back from liquid level, calculate detecting distance, and measurement result is passed to Split ultrasonic level meter main frame with digital signaling.Split ultrasonic level meter main frame is connected by from the cable of drawing of popping one's head in between ultrasonic probe, Split ultrasonic level meter is powered and transfer control order to ultrasonic probe by cable, and ultrasonic probe transmits the digital signal representing measured value to main frame.
Fig. 3 is the concrete function block diagram of Split ultrasonic level meter main frame.Whole main frame as core component, controls the work of other functional modules by single-chip microcomputer.Externally fed enters after main frame through secondary filter, operating voltage such as being changed to+5v in main frame needed for each circuit and-5v is filled by voltage transformation module, single-chip microcomputer carries out digital communication by digital interface and 2 ultrasonic probes, distance measure is sent to the single-chip microcomputer on main frame by probe, single-chip microcomputer carries out the calculating of thing place value according to the measurement data of probe, thing place value is shown in real time on LCD liquid crystal, by constant current output module, the current analog signal of 4-20mA is uploaded to master-control room simultaneously, comprised the digital signal of multiple detection data to host computer transmission by RS485 module, according to the upper limit of setting, lower limit is opened or is closed corresponding high-low-position relay, control relevant device action.
Fig. 4 is the composition structural representation of ultrasonic probe.Ultrasonic transducer is installed on probe front end, for outwards launching ultrasonic pulse, receiving the echo of reflection simultaneously and echoed signal is converted to electric pulse.The electronic core of transducer drive and echo signal reception unit and single-chip microcomputer composition is placed on the rear portion of transducer, and be connected with Split ultrasonic level meter main frame by cable, measured value is sent to the control command of Split ultrasonic level meter main frame Receiving Host with digital signaling, in cable, form two loops: current supply circuit and digital signal transmit loop; Metal screen layer is placed with, for shielding extraneous possible electromagnetic interference (EMI) in the inner side of probing shell.
Claims (2)
1. a Split ultrasonic level meter, be made up of Split ultrasonic level meter main frame and ultrasonic probe, it is characterized in that Split ultrasonic level meter main frame and adopt digital form to carry out signal between ultrasonic probe to communicate, the inner transmitting including the work of driving ultrasonic transducer of ultrasonic probe drives electronic unit, for receiving the echo signal processing electronic unit of echoed signal and controlling the single-chip microcomputer of two cell operation, the ultrasonic transducer of ultrasonic probe inside is the single transducer that transmitting-receiving is unified.
2. Split ultrasonic level meter as claimed in claim 1, is characterized in that level meter main frame has analog signal output simultaneously, digital signal exports and many group on-off model output function modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420258931.7U CN204064399U (en) | 2014-05-14 | 2014-05-14 | A kind of Split ultrasonic level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420258931.7U CN204064399U (en) | 2014-05-14 | 2014-05-14 | A kind of Split ultrasonic level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204064399U true CN204064399U (en) | 2014-12-31 |
Family
ID=52205887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420258931.7U Expired - Fee Related CN204064399U (en) | 2014-05-14 | 2014-05-14 | A kind of Split ultrasonic level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204064399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441508A (en) * | 2016-07-15 | 2017-02-22 | 上海交通大学 | Ultrasonic material level meter |
-
2014
- 2014-05-14 CN CN201420258931.7U patent/CN204064399U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441508A (en) * | 2016-07-15 | 2017-02-22 | 上海交通大学 | Ultrasonic material level meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207180630U (en) | A kind of Ultrasonic Intelligent measuring thickness device | |
| CN207215243U (en) | A kind of liquid level emasuring device based on ultrasonic wave | |
| CN204256991U (en) | A kind of wireless vehicle location probe of multisensor | |
| CN104792655B (en) | A kind of density sensing system | |
| CN106770647B (en) | Fat content measuring system and method | |
| CN203657904U (en) | An automatic height and body weight measuring instrument | |
| CN204064399U (en) | A kind of Split ultrasonic level meter | |
| CN202141441U (en) | Automatic snow depth measuring device based on ultrasonic sensor | |
| CN204964452U (en) | Wireless crack depth automated inspection appearance | |
| CN105116371A (en) | Target positioning method and apparatus based on continuous emitting frequency modulation signals | |
| CN204064398U (en) | A kind of multifunction ultrasonic liquid level difference meter | |
| CN105372661A (en) | Ultrasonic intelligent range finder | |
| CN205483061U (en) | Agricultural plant protection unmanned aerial vehicle comprehensive tester and unmanned aerial vehicle system | |
| CN209910781U (en) | External-pasting type digital ultrasonic liquid level detection sensor | |
| CN105467395B (en) | A kind of overlength distance ultrasonic meter | |
| CN206930336U (en) | A kind of ultrasonic solution level detecting apparatus | |
| CN202869605U (en) | FM pulse echo method based ultrasonic liquid level measuring device | |
| CN204085636U (en) | Ultrasonic Intelligent liquid level emasuring device | |
| CN205843765U (en) | A kind of sensor-based liquid level measuring system | |
| CN108957464A (en) | Four dot matrix fish finding sonars | |
| CN103076396A (en) | Electric power steel member ultrasonic detection apparatus | |
| CN204731200U (en) | Digital supersonic flaw detector | |
| CN203705298U (en) | Ultrasonic specific gravity measuring equipment | |
| CN107063392B (en) | A kind of intelligent liquid level measuring appliance based on microwave transmission line and DSP technology | |
| CN205593602U (en) | Desulfurizing slurry case liquid level measurement device based on radar level gauge |
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: 20141231 Termination date: 20150514 |
|
| EXPY | Termination of patent right or utility model |