CN205015021U - Warm -pressing offset -type vortex flowmeter - Google Patents
Warm -pressing offset -type vortex flowmeter Download PDFInfo
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- CN205015021U CN205015021U CN201520812780.XU CN201520812780U CN205015021U CN 205015021 U CN205015021 U CN 205015021U CN 201520812780 U CN201520812780 U CN 201520812780U CN 205015021 U CN205015021 U CN 205015021U
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- flow meter
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Abstract
The utility model provides a warm -pressing offset -type vortex flowmeter, including singlechip, sensor, preamplification processing circuit unit, isolation circuit unit, pulse amplification circuit unit, current transformation circuit unit and display, the sensor is connected with current transformation circuit unit with preamplification processing circuit unit, isolation circuit unit, singlechip in proper order, keeps apart circuit unit and still is connected with pulse amplification circuit unit, and the singlechip is connected with the display, the sensor is one kind among vortex street sensor, piezoelectric sensor or the differential capacitive sensor. The utility model discloses a sensor detects out the swirl frequency, and after taking care of frequency signal, operation is made to the input singlechip, but the flow of convection cell carries out the status display with the accumulation total amount to exportable and flow proportional pulse signal and 4-20mA's current signal picture.
Description
Technical field
The utility model relates to a kind of flowmeter, especially a kind of temperature and pressure compensation type vortex shedding flow meter.
Background technology
Vortex shedding flow meter is mainly used in the flow measurement of industrial pipeline medium fluid, as mediums such as gas, liquid, steams.But existing vortex shedding flow meter the flow of convection cell and accumulation total amount cannot carry out scene display, and cannot export the current signal figure of the pulse signal proportional with flow and 4 ~ 20mA.
Summary of the invention
For the weak point existed in the problems referred to above, the utility model provides a kind of after nursing one's health the vortex frequency detected, processing, the flow of convection cell and accumulation total amount can carry out scene display, and the temperature and pressure compensation type vortex shedding flow meter of the current signal figure of the exportable pulse signal proportional with flow and 4 ~ 20mA.
For achieving the above object, the utility model provides a kind of temperature and pressure compensation type vortex shedding flow meter, comprise and measure body (10), trapezoidal block body (11) is provided with in measurement body (10), comprise single-chip microcomputer (1), sensor (2), enlarge leadingly treatment circuit unit (3), buffer circuit unit (4), pulse amplifying circuit unit (5), current conversion circuit unit (6) and display (9), described sensor (2) successively with described enlarge leadingly treatment circuit unit (3), described buffer circuit unit (4), described single-chip microcomputer (1) is connected with described current conversion circuit unit (6), described buffer circuit unit (4) is also connected with described pulse amplifying circuit unit (5), described single-chip microcomputer (1) is connected with described display (9),
Described sensor (2) is connected with described trapezoidal shelves body (11), and it is the one in vortex street sensor, piezoelectric sensor or differential capacitance sensor.
Above-mentioned temperature and pressure compensation type vortex shedding flow meter, wherein, described sensor (2), described enlarge leadingly treatment circuit unit (3) are all be connected with the output terminal of insulating power supply (7) with the input end of described buffer circuit unit (4).
Above-mentioned temperature and pressure compensation type vortex shedding flow meter, wherein, the input end of described insulating power supply (7) is also connected with the output terminal of supply convertor (8).
Above-mentioned temperature and pressure compensation type vortex shedding flow meter, wherein, described trapezoidal shelves body (11) is eddy generator.
Compared with prior art, the utility model has the following advantages:
The utility model has the advantage that structure is simple, reliability is high, durability is strong, sensor is adopted to detect vortex frequency, after frequency signal is nursed one's health, calculation process made by input single-chip microcomputer, the flow of convection cell and accumulation total amount can carry out scene display, and the current signal figure of the exportable pulse signal proportional with flow and 4 ~ 20mA.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model.
Main Reference Numerals is described as follows:
1-single-chip microcomputer; 2-sensor; 3-enlarge leadingly treatment circuit unit; 4-buffer circuit unit; 5-pulse amplifying circuit unit; 6-current conversion circuit unit; 7-insulating power supply; 8-supply convertor; 9-display; 10-measures body; The trapezoidal shelves body of 11-
Embodiment
As shown in Figure 1, the utility model provides a kind of temperature and pressure compensation type vortex shedding flow meter, comprises and measures body 10, and in measurement body 10, be provided with trapezoidal block body 11, this trapezoidal shelves body 11 is eddy generator.Also comprise single-chip microcomputer 1, sensor 2, enlarge leadingly treatment circuit unit 3, buffer circuit unit 4, pulse amplifying circuit unit 5, current conversion circuit unit 6 and display 9, sensor 2 is connected with current conversion circuit unit 6 with enlarge leadingly treatment circuit unit 3, buffer circuit unit 4, single-chip microcomputer 1 successively, buffer circuit unit 4 is also connected with pulse amplifying circuit unit 5, single-chip microcomputer 1 is connected with display 9, and sensor 2 is also connected with trapezoidal shelves body 11.
Sensor 2, enlarge leadingly treatment circuit unit 3 and the input end of buffer circuit unit 4 are all be connected with the output terminal of insulating power supply 7.The input end of insulating power supply 7 is also connected with the output terminal of supply convertor 8.
Wherein, sensor 2 can adopt the one in vortex street sensor, piezoelectric sensor or differential capacitance sensor.
The utility model adopts sensor to detect vortex frequency, after frequency signal is nursed one's health, calculation process made by input single-chip microcomputer, and flow and the accumulation total amount that can make fluid carry out scene display, and the current signal figure of the exportable pulse signal proportional with flow and 4 ~ 20mA.
These are only preferred embodiment of the present utility model, is only illustrative for invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes in the spirit and scope that invention claim limits to it, amendment, even equivalence, but all will fall in protection domain of the present utility model.
Claims (4)
1. a temperature and pressure compensation type vortex shedding flow meter, comprise and measure body (10), trapezoidal block body (11) is provided with in measurement body (10), it is characterized in that, comprise single-chip microcomputer (1), sensor (2), enlarge leadingly treatment circuit unit (3), buffer circuit unit (4), pulse amplifying circuit unit (5), current conversion circuit unit (6) and display (9), described sensor (2) successively with described enlarge leadingly treatment circuit unit (3), described buffer circuit unit (4), described single-chip microcomputer (1) is connected with described current conversion circuit unit (6), described buffer circuit unit (4) is also connected with described pulse amplifying circuit unit (5), described single-chip microcomputer (1) is connected with described display (9),
Described sensor (2) is connected with described trapezoidal shelves body, and it is the one in vortex street sensor, piezoelectric sensor or differential capacitance sensor.
2. temperature and pressure compensation type vortex shedding flow meter according to claim 1, it is characterized in that, described sensor (2), described enlarge leadingly treatment circuit unit (3) are all be connected with the output terminal of insulating power supply (7) with the input end of described buffer circuit unit (4).
3. temperature and pressure compensation type vortex shedding flow meter according to claim 2, is characterized in that, the input end of described insulating power supply (7) is also connected with the output terminal of supply convertor (8).
4., according to described temperature and pressure compensation type vortex shedding flow meter arbitrary in claims 1 to 3, it is characterized in that, described trapezoidal shelves body (11) is eddy generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520812780.XU CN205015021U (en) | 2015-10-19 | 2015-10-19 | Warm -pressing offset -type vortex flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520812780.XU CN205015021U (en) | 2015-10-19 | 2015-10-19 | Warm -pressing offset -type vortex flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205015021U true CN205015021U (en) | 2016-02-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520812780.XU Active CN205015021U (en) | 2015-10-19 | 2015-10-19 | Warm -pressing offset -type vortex flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205015021U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907177A (en) * | 2017-11-21 | 2018-04-13 | 广州西森自动化控制设备有限公司 | A kind of mark side's vortex-shedding meter for carrying temperature pressure compensation |
-
2015
- 2015-10-19 CN CN201520812780.XU patent/CN205015021U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907177A (en) * | 2017-11-21 | 2018-04-13 | 广州西森自动化控制设备有限公司 | A kind of mark side's vortex-shedding meter for carrying temperature pressure compensation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |