CN2253825Y - Intelligent ultrosonic wave flowmeter - Google Patents
Intelligent ultrosonic wave flowmeter Download PDFInfo
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- CN2253825Y CN2253825Y CN 95243037 CN95243037U CN2253825Y CN 2253825 Y CN2253825 Y CN 2253825Y CN 95243037 CN95243037 CN 95243037 CN 95243037 U CN95243037 U CN 95243037U CN 2253825 Y CN2253825 Y CN 2253825Y
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- power supply
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Abstract
The utility model relates to an intelligent supersonic flowmeter, which is composed of power supplies, supersonic emitters, supersonic receivers, switching circuits, amplifying circuits, a micro computer system, a monitoring and self-checking circuit, and a display unit. The utility model has the advantages of small size, low power consumption, high measuring stability, high measuring reliability, fast operational speed, convenient maintenance, easy installation, etc. The precision of the utility model can reach +/-1.5 percents; the utility model uses double keyboards to input, and the operating cycle of programs can be shortened; a plurality of phenomena of system halt can be inhibited; when the utility model can switch on again, the utility model can find the break of the programs, and restores to operate; the utility model can self check and recognize fault points. The utility model is suitable for measuring the flow, the flow rate and the flow direction of various liquid inside plastic and metal pipelines with the diameters of 100 mm to 2500 mm.
Description
The utility model relates to a kind of ultrasonic measurement instrument of fluid flow.
Existing mechanical tabular form flowmeter, measuring accuracy is low, and sensitivity is low; Existing ultrasonic flow meter poor anti jamming capability, measuring stability and poor reliability, process structure is poor.
The purpose of this utility model is to overcome the shortcoming of prior art, a kind of intelligent ultrasonic flow meter is provided, use micro-computer technology on ultrasonic meter, can both accurately measure wherein flow, flow velocity and the flow direction of various liquid for the pipeline of caliber φ 100～φ 2500mm, the functional reliability height, volume is little, low in energy consumption, installation, maintenance convenient.The suitable flow application of measuring the various liquid in plastics, the metallic conduit.
The utility model is achieved in that intelligent ultrasonic flow meter, by power circuit, it with 220V conversion output+2500V ,+12V ,+5V ,-working power of 15V, ultrasonic emitting 1,2, ultrasound wave receives 1,2, and commutation circuit 1,2 is amplified and signal compensation circuit, handle by central authorities, program, decoding, clock, regularly, data-storing, data presentation, voltage select, function conversion, keyboard are formed microcomputer system and supervision and self-correcting circuit, display device formation.Monitoring circuit monitors power supply and interference, by ic chip
1, model MAX791 or MAXb91, its pin 1 series resistor R
1With diode D
1Negative pole, D
1Positive pole meet+the 5V power supply D
1Model 1N4001.IC
1 Pin 1 connect the positive pole of 3.6V rechargable battery simultaneously, the minus earth of rechargeable battery is as the power-off protection power supply.IC
1Pin 2 connect the protection pin of the protection memory 6116 of micro computer.IC
1Pin 3 connect+5V power supply and capacitor C
1An end, C
1Other end ground connection.IC
1Pin 4 ground connection.IC
1Pin 6 connect CLK clock signal, resistance R
3One termination+5V power supply, R
3The other end and connecting resistance R
2, R
4, capacitor C
3An end and IC
1Pin 7, R
2Another termination IC
1Pin 6, R
4With C
3Other end ground connection.IC
1Pin 8 connect capacitor C
2An end, C
2Other end ground connection.IC
1Pin 9 meet diode D
2Positive pole, D
2Negative pole meet IC
1Pin 14, D
2Model IN414B, IC
1 Pin 15 connect the RESET pin of central processor CPU.Adopt the two-stage triode to carry out preposition amplification, its final stage amplifier section ic chip in amplification and the signal compensation circuit
2, model 7652, IC
2Pin 5 and connecting resistance R
5With variable resistor R
7An end, R
5Other end ground connection, R
7Other end connecting resistance R
8, R
8Another termination non-gate ic IC
3Pin 2, IC
3Model 74MCO4.IC
2Pin 6 series resistor R
6With capacitor C
4, C
4The emitter of second level triode of another termination prime amplifier.IC
2Pin 7 connect-the 6V power supply.IC
2Pin 11 connect+the 8V power supply.IC
2Pin 9 and connecting resistance R
10With capacitor C
5, R
10With C
5The other end be connected to triode D
3Base stage, D
3Collector and connecting resistance R
9With IC
3Pin 1, R
9Another termination+5V power supply, D
3Grounded emitter, the input of the signal of timer meets D
3Collector, D
3Model 3DK2.Self-correcting circuit ic chip
4, model 74HC14, IC
4Pin 1 and connecting resistance R
11With capacitor C
6, C
6Other end ground connection, R
11The other end and meet IC
4Pin 2 and pin 3.IC
4Pin 4 be connected to ultrasound wave receiving end 2, IC after connecing K switch 2
4 Pin 10 be connected to ultrasound wave receiving end 1 after connecing K switch 1.Off switch K1, K2 get final product self-correcting; Cut-off switch K1, K2 recover normally to measure.IC
4Pin 13 and connecting resistance R
12With capacitor C
7, C
7Other end ground connection, R
12The other end and meet IC
4Pin 11 and pin 12.IC
4Pin 14 meet+the 5V power supply IC
4Pin 7 ground connection.Keyboard is made up of for two groups with function selecting the data input.Data are imported with general digital input keyboard.Function selection keyboard is by ic chip
6, model 74HC273, IC
6Pin 1,20 connect+the 5V power supply pin 10 ground connection.IC
6Output pin Q1-Q8 connect the data line of micro computer respectively.IC
6Input pin D1-D8 parallel resistance R respectively
20-R
13With capacitor C
15-C
8An end after, connect a function enter key more respectively, ground connection then, R
13-R
20Another termination+5V power supply, C
8-C
15Other end ground connection.IC
6Pin 11 connect ic chip
5Pin 10, IC
5Pin 1,2,3,4,5,6,8,9 be connected to IC respectively
6D
1-D
8Pin.IC
5Model be 74HC30.The exomonental commutation circuit 1,2 of high pressure adopts 3FB-3J type the mercury wet rectilinear relay K 31 of spring, K32 and K41, K42, respectively connect a utmost point of ultrasonic transducer 1,2, another utmost point ground connection of ultrasonic transducer 1,2, its received signal output is connected in the preposition amplifying signal input capacitance of amplifying circuit.During use, its measurement transducer is installed on pipeline outer wall.
The utlity model has and adopt HC series digit integrated circuit, volume is little, and is low in energy consumption; Measuring stability and reliability height, measuring accuracy reach ± and 1.5%; With the input of two keyboards, shortened cycle of operation of program, fast operation; Energy homologous ray machine communication networking, data transmission; Adopt monitoring circuit that power supply and interference are monitored, suppressed multiple deadlock phenomenons such as the flight distance preface crashes, power-supply fluctuation is crashed, telegram in reply deadlock effectively, can find the fracture of program to resume operation when obtaining electricity again; Amplifying circuit adopts pulse regulation, can accurately regulate enlargement factor, improves signal to noise ratio (S/N ratio), suppresses the coarse reflection slowly that produces of tube wall, improves time difference precision; Characteristics such as self-correcting circuit quality of self check complete machine easily in installation process, and distinguish the trouble spot is convenient to adjust and maintenance, and is easy for installation.The plastics of the suitable φ of measurement 100-φ 2500mm and flow, flow velocity and the flow direction of the various liquid in the metallic conduit are used.
The utility model further describes below with reference to accompanying drawing and embodiment:
Fig. 1 is a frame principle figure, and Fig. 2 is monitoring circuit figure, and Fig. 3 is the final stage amplifier section of amplifying circuit, and Fig. 4 is the self-correcting circuit, and Fig. 5 is the function selection keyboard circuit diagram, and Fig. 6 is a commutation circuit 1,2.
Embodiment:
Among monitoring circuit Fig. 2, ic chip
1Model MAX791 or MAX691, resistance R
1100 Ω, R
21K, R
35.1K, R
44.7K, capacitor C
10.047, C
20.1, C
30.1, diode D
11N4001, D
21N414B.Among last utmost point amplifier section Fig. 3 of amplifying circuit, ic chip
2Model 7652, IC
3Model 74HC04, resistance R
551 Ω, R
6, R
81K, R
7Variable resistor R for 470K
9, R
1010K, capacitor C
4, C
50.047.In the self-correcting circuit diagram 4, ic chip
4Model 74HC14, resistance R
11, R
12100K, capacitor C
6, C
70.01 K switch 1, K2 select key switch for use.In the function selection keyboard circuit diagram 5, ic chip
5Model 74HC30, IC
6Model 74HC273, resistance R
13-R
205.1K, capacitor C
8-C
150.047, mark its functional symbol respectively on eight buttons.Among commutation circuit 1,2 Fig. 6, K31 and K32, K41 and K42 are the wet rectilinear relays of spring of two groups of 3FB-3J type mercurys, and ultrasonic transducer 1,2 is selected the higfh-tension ceramics transducer of φ 40mm for use.
The micro computer plate is selected the JTZ801 type for use.Said elements is linked and packed by figure.
Claims (5)
- The intelligence ultrasonic flow meter, comprise output+2500V ,+12V ,+5V ,-power supply of 15V, ultrasonic emitting 1,2, ultrasound wave receives 1,2, commutation circuit 1,2, amplify and signal compensation circuit, by central authorities' processing, program, decoding, clock, regularly, data-storing, data presentation, voltage select, function conversion, keyboard are formed microcomputer system and supervision thereof and self-correcting circuit, display device constitute, it is characterized in that:(1), monitoring circuit monitors power supply and interference, by ic chip 1, model MAX791, MAX691, its pin 1 series resistor R 1With diode D 1Negative pole, D 1Positive pole meet+the 5V power supply D 1Model IN4001, IC 1Pin 1 connects the positive pole of 3.6V rechargeable battery simultaneously, the minus earth of rechargeable battery; IC 1Pin 2 connect the protection pin of the protection storage equipment 6116 of micro computer; IC 1Pin 3 connect+5V power supply and capacitor C 1An end, C 1Other end ground connection; IC 1Pin 4 ground connection; IC 1Pin 6 connect CLK clock signal, resistance R 3One termination+5V power supply, R 3The other end and connecting resistance R 2, R 4, capacitor C 3An end and IC 1Pin 7, R 2Another termination IC 1Pin 6, R 4With C 3Other end ground connection; IC 1Pin 8 connect capacitor C 2An end, C 2Other end ground connection; IC 1Pin 9 meet diode D 2Positive pole, D 2Negative pole meet IC 1Pin 14, D 2Model IN414B, IC 1Pin 15 connect the RESET pin that central authorities handle CPV;
- (2), adopt the two-stage triode to carry out preposition amplification, the final stage amplifier section ic chip of amplifying circuit 2, model 7652, IC 2Pin 5 and connecting resistance R 5With variable resistor R 7An end, R 5Other end ground connection, R 7Other end connecting resistance R 8, R 8Another termination non-gate ic IC 3Pin 2, IC 3Model 74MC04; IC 2Pin 6 series resistor R 6With capacitor C 4, C 4The emitter of second level triode of the preposition amplification of another termination; IC 2Pin 7 connect-the 6V power supply; IC 2Pin 11 connect+the 8V power supply; IC 2Pin 9 and connecting resistance R 10With capacitor C 5, R 10With C 5The other end be connected to triode D 3Base stage, D 3Collector and connecting resistance R 9With IC 3Pin 1, R 9Another termination+5V power supply, D 3Grounded emitter, the input of the signal of timer meets D 3Collector, D 3Model be 3DK2;
- (3), self-correcting circuit ic chip 4, model 74HC14, IC 4Pin 1 and connecting resistance R 11With capacitor C 6, C 6Other end ground connection, R 11The other end and meet IC 4Pin 2 and pin 3; IC 4Pin 4 connect K switch 2After be connected to ultrasound wave receiving end 2, IC 4Pin 10 connect K switch 1After be connected to ultrasound wave receiving end 1; IC 4Pin 13 and connecting resistance R 12With capacitor C 7, C 7Other end ground connection, R 12The other end and meet IC 4Pin 11 and pin 12; IC 4Pin 14 meet+the 5V power supply IC 4Pin 7 ground connection;
- (4), keyboard is made up of for two groups data inputs and function selecting, function selection keyboard is by ic chip 6, model 74HC273, IC 6Pin 1,20 connect+the 5V power supply pin 10 ground connection; IC 6Output pin Q 1-Q 8The data line that connects micro computer respectively; IC 6Input pin D 1-D 6Difference parallel resistance R 20-R 13With capacitor C 15-C 8An end after, connect a function enter key more respectively, ground connection then, R 13-R 20Another termination+5V power supply, C 6-C 15Other end ground connection; IC 6Pin 11 connect the pin 10 of ic chip 5, IC 5Pin 1,2,3,4,5,6,8,9 be connected to IC respectively 6D 1-D 8Pin, IC 5Model 74HC30;
- (5), the exomonental commutation circuit 1,2 of high pressure adopts the wet rectilinear relay K of spring of 3FB-3J type mercury 31, K 32With K 41, K 42, respectively connect the utmost point of ultrasonic transducer 1,2, another utmost point ground connection of ultrasonic transducer 1,2, its received signal output is connected in the preamplification signal input capacitance of amplifying circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95243037 CN2253825Y (en) | 1995-04-08 | 1995-04-08 | Intelligent ultrosonic wave flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95243037 CN2253825Y (en) | 1995-04-08 | 1995-04-08 | Intelligent ultrosonic wave flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2253825Y true CN2253825Y (en) | 1997-05-07 |
Family
ID=33883867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95243037 Expired - Fee Related CN2253825Y (en) | 1995-04-08 | 1995-04-08 | Intelligent ultrosonic wave flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2253825Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443860C (en) * | 2004-05-07 | 2008-12-17 | 恩德斯+豪斯流量技术股份有限公司 | Ultrasonic measuring apparatus for determining and/or monitoring the volume flow rate and/or mass flow rate of a medium |
| CN104867204A (en) * | 2014-02-20 | 2015-08-26 | 兰州交通大学 | Ultrasonic sensor array type automatic people counting detection system |
-
1995
- 1995-04-08 CN CN 95243037 patent/CN2253825Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443860C (en) * | 2004-05-07 | 2008-12-17 | 恩德斯+豪斯流量技术股份有限公司 | Ultrasonic measuring apparatus for determining and/or monitoring the volume flow rate and/or mass flow rate of a medium |
| CN104867204A (en) * | 2014-02-20 | 2015-08-26 | 兰州交通大学 | Ultrasonic sensor array type automatic people counting detection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |