CN219977469U - Differential pressure-based multifunctional flowmeter - Google Patents
Differential pressure-based multifunctional flowmeter Download PDFInfo
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- CN219977469U CN219977469U CN202321697258.2U CN202321697258U CN219977469U CN 219977469 U CN219977469 U CN 219977469U CN 202321697258 U CN202321697258 U CN 202321697258U CN 219977469 U CN219977469 U CN 219977469U
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- 238000009792 diffusion process Methods 0.000 claims description 6
- 239000003381 stabilizer Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a differential pressure-based multifunctional flowmeter, which relates to the technical field of flowmeters and comprises a microcontroller, wherein the connecting end of the microcontroller is connected with an ADC (analog to digital converter), a power supply processing module and an RS485 port, the input end of the microcontroller is connected with an input key, a temperature sensor and the ADC, and the output end of the microcontroller is connected with a DAC (digital to analog converter), a relay and an Oled display screen. The differential pressure-based multifunctional flowmeter can be used in various different application environments through the wide voltage 9V-36V input, the three outputs of 4-20 mA output, 0-5V output and 0-10V output are selected, the Oled display screen selects the required output mode to be automatically switched, and the temperature sensor can effectively detect the temperature, so that the use flexibility and convenience are effectively improved.
Description
Technical Field
The utility model relates to the technical field of flowmeters, in particular to a differential pressure-based multifunctional flowmeter.
Background
The flowmeter is a meter for indicating the measured flow rate and/or the total amount of fluid in a selected time interval, namely simply a meter for measuring the flow rate of fluid in a pipeline or an open channel, and is divided into a differential pressure type flowmeter, a rotameter, a throttling type flowmeter, a slit flowmeter, a volumetric flowmeter, an electromagnetic flowmeter, an ultrasonic flowmeter and the like.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a differential pressure-based multifunctional flowmeter, which solves the problems that the flowmeter is difficult to effectively and accurately measure temperature data, and the output mode is single, so that the use flexibility and convenience are not ideal.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a multifunctional flowmeter based on differential pressure, includes microcontroller, microcontroller's link is connected with ADC, power processing module and RS485 port, microcontroller's input is connected with input button, temperature sensor and ADC, microcontroller's output is connected with DAC, relay and Oled display screen;
the power supply processing module comprises a DC input head, and the connecting end of the DC input head is connected with a power supply chip and a voltage stabilizer.
Preferably, the model of the microcontroller is STM32F103RBT6, and the microcontroller is connected with the RS485 port through a serial port.
Preferably, the microcontroller is connected with the ADC through the SPI, and the input end of the ADC is connected with two diffusion silicon cores.
Preferably, the input voltage range of the DC input head is set to 9V-36V, and the output mode of the DAC is set to one of 4-20 mA output, 0-5V output and 0-10V output.
Preferably, the model of the RS4 port is set as RSM3485, and the RS485 port adopts a standard MODBUS protocol.
Preferably, the model of the power supply chip is set to URB2405YMD-6WR3, and the model of the voltage stabilizer is set to TLV70230.
Preferably, the model of the ADC is set to AD7799, and the model of the DAC is set to DAC8760.
Preferably, the model of the temperature sensor is set as DS18B20, and the temperature sensor is connected with the microcontroller through a single bus.
Advantageous effects
The utility model provides a differential pressure-based multifunctional flowmeter. Compared with the prior art, the method has the following beneficial effects:
the differential pressure-based multifunctional flowmeter can be used in various different application environments through the wide voltage 9V-36V input, the three outputs of 4-20 mA output, 0-5V output and 0-10V output are selected, the Oled display screen selects the required output mode to be automatically switched, and the temperature sensor can effectively detect the temperature, so that the use flexibility and convenience are effectively improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
fig. 2 is a circuit diagram of the present utility model.
In the figure: 1. a microcontroller; 2. a power supply processing module; 201. a DC input head; 202. a power chip; 3. inputting keys; 4. a temperature sensor; 5. an ADC; 6. diffusing the silicon core; 7. an RS485 port; 8. a relay; 9. a DAC; 10. an Oled display screen.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, the present utility model provides a technical solution: the utility model provides a differential pressure-based multifunctional flowmeter, which comprises a microcontroller 1, the model of microcontroller 1 sets up to STM32F103RBT6, microcontroller 1's link is connected with ADC5, power processing module 2 and RS485 port 7, ADC 5's model sets up to AD7799, RS485 port 7's model sets up to RSM3485, RS485 port 7 adopts standard MODBUS protocol, effective data transmission distance is up to 1 km, and external interference can be better reduced, data transmission and the stability of whole product are improved, microcontroller 1 is connected with ADC5 through SPI, ADC5 is analog-to-digital converter, can convert analog signal into digital signal, ADC 5's input is connected with two diffusion silicon core 6, two diffusion silicon core 6 are differential pressure sensor and pressure sensor respectively, microcontroller 1 is connected with RS485 port 7 through the serial ports, the input end of the microcontroller 1 is connected with an input key 3, a temperature sensor 4 and an ADC5, the output end of the microcontroller 1 is connected with a DAC9, a relay 8 and an Oled display screen 10, the switching value of the relay 8 can be output, the type of the DAC9 is set to be DAC8760, the DAC9 is a digital-to-analog converter, digital signals can be converted into analog signals, the output mode of the DAC9 is set to be 4-20 mA output, 0-5V output and 0-10V output, one of the output modes required by the user can be selected through the Oled display screen 10 to be automatically switched, the type of the temperature sensor 4 is set to be DS18B20, the temperature sensor 4 is connected with the microcontroller 1 through a single bus, the temperature can be effectively detected, and after the change of the force can be detected through two diffusion silicon cores 6 in the interior, the voltage signals are correspondingly changed and are transmitted to the ADC5 to be converted into digital signals, and pressure data are obtained.
The power supply processing module 2 comprises a DC input head 201, a power supply chip 202 and a voltage stabilizer are connected to the connecting end of the DC input head 201, the input voltage range of the DC input head 201 is set to be 9V-36V, the wide voltage input can be used in various application environments, the model of the power supply chip 202 is set to be URB2405YMD-6WR3, and the model of the voltage stabilizer is set to be TLV70230.
When the intelligent temperature sensor works, the wide voltage 9V-36V input can be used in various application environments, the 4-20 mA output, the 0-5V output and the 0-10V output are selected as one output, the Oled display screen 10 selects a required output mode to be automatically switched, the temperature sensor 4 can effectively detect the temperature, after the two diffusion silicon cores 6 inside detect the change of force, the voltage signal generates corresponding change and is transmitted to the ADC5 to be converted into a digital signal, so that the pressure data is obtained, and the flexibility and the convenience of use are effectively improved.
And all that is not described in detail in this specification is well known to those skilled in the art.
Claims (8)
1. A differential pressure based multifunctional flowmeter comprising a microcontroller (1), characterized in that: the intelligent control device comprises a microcontroller (1), wherein the connecting end of the microcontroller (1) is connected with an ADC (analog to digital) (5), a power supply processing module (2) and an RS485 port (7), the input end of the microcontroller (1) is connected with an input key (3), a temperature sensor (4) and the ADC (5), and the output end of the microcontroller (1) is connected with a DAC (9), a relay (8) and an Oled display screen (10);
the power supply processing module (2) comprises a DC input head (201), and a power supply chip (202) and a voltage stabilizer are connected to the connecting end of the DC input head (201).
2. The differential pressure based multifunction flow meter of claim 1, wherein: the model of the microcontroller (1) is set to STM32F103RBT6, and the microcontroller (1) is connected with the RS485 port (7) through a serial port.
3. The differential pressure based multifunction flow meter of claim 1, wherein: the microcontroller (1) is connected with the ADC (5) through the SPI, and the input end of the ADC (5) is connected with two diffusion silicon cores (6).
4. The differential pressure based multifunction flow meter of claim 1, wherein: the input voltage range of the DC input head (201) is set to 9V-36V, and the output mode of the DAC (9) is set to one of 4-20 mA output, 0-5V output and 0-10V output.
5. The differential pressure based multifunction flow meter of claim 1, wherein: the model of the RS485 port (7) is set to be RSM3485, and the RS485 port (7) adopts a standard MODBUS protocol.
6. The differential pressure based multifunction flow meter of claim 1, wherein: the model of the power chip (202) is set to URB2405YMD-6WR3, and the model of the voltage stabilizer is set to TLV70230.
7. The differential pressure based multifunction flow meter of claim 1, wherein: the model of the ADC (5) is set to AD7799, and the model of the DAC (9) is set to DAC8760.
8. The differential pressure based multifunction flow meter of claim 1, wherein: the model of the temperature sensor (4) is set as DS18B20, and the temperature sensor (4) is connected with the microcontroller (1) through a single bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321697258.2U CN219977469U (en) | 2023-06-30 | 2023-06-30 | Differential pressure-based multifunctional flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321697258.2U CN219977469U (en) | 2023-06-30 | 2023-06-30 | Differential pressure-based multifunctional flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219977469U true CN219977469U (en) | 2023-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321697258.2U Active CN219977469U (en) | 2023-06-30 | 2023-06-30 | Differential pressure-based multifunctional flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219977469U (en) |
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2023
- 2023-06-30 CN CN202321697258.2U patent/CN219977469U/en active Active
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