CN210426704U - High-precision liquid level continuous measuring device - Google Patents
High-precision liquid level continuous measuring device Download PDFInfo
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- CN210426704U CN210426704U CN201921751509.4U CN201921751509U CN210426704U CN 210426704 U CN210426704 U CN 210426704U CN 201921751509 U CN201921751509 U CN 201921751509U CN 210426704 U CN210426704 U CN 210426704U
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- 239000007788 liquid Substances 0.000 title claims abstract description 79
- 238000004891 communication Methods 0.000 claims abstract description 10
- 239000003990 capacitor Substances 0.000 claims description 60
- 239000013078 crystal Substances 0.000 claims description 23
- 238000005259 measurement Methods 0.000 abstract description 25
- 238000000034 method Methods 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
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- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001568 sexual effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 1
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Abstract
The utility model discloses a high-precision liquid level continuous measuring device, which comprises a measuring instrument, a light rod, a rotating shaft, an angle sensor and a floating ball; one end of the light rod is connected with the floating ball, and the other end of the light rod is connected with the rotating shaft; the floating ball is arranged on the liquid level; the angle sensor is arranged on the light rod; the angle sensor is in communication connection with the measuring instrument. The utility model discloses a high accuracy liquid level continuous measurement device can continuous measurement liquid level height and accurate demonstration liquid level height, and measurement accuracy is high, and the error is little, and is with low costs, and simple structure can be according to the real-time change continuous measurement liquid level height of liquid level.
Description
Technical Field
The utility model belongs to the technical field of measuring method, concretely relates to high accuracy liquid level continuous measurement device.
Background
There are many methods for measuring the liquid level, including non-contact measurement and contact measurement. Non-contact measurement methods include: ultrasonic method, microwave method, infrared ray test method, etc.; the contact type measuring method includes a differential pressure type liquid level meter, a buoyancy type liquid level meter, an electrode type liquid level meter, a resistance type liquid level meter, an inductance type liquid level meter, a magnetic induction type liquid level meter and the like. In the process of liquid level measurement, some liquid level meters can continuously measure the liquid level, and some liquid level meters can only measure the liquid level at fixed points. Usually, the fixed-point measuring liquid level meter is simpler and has low cost, but only can measure the liquid level at certain height, and the application range is limited; continuous measuring level gauges are generally complex, inaccurate in measurement and high in cost. Therefore, it is difficult to find a liquid level meter measuring device which can continuously measure, has high precision, low cost and simple structure. Based on the circumstances above, the utility model provides a high accuracy liquid level continuous measurement device.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem of continuous measurement liquid level and providing a high-precision liquid level continuous measurement device.
The technical scheme of the utility model is that: a high-precision liquid level continuous measuring device comprises a measuring instrument, a light rod, a rotating shaft, an angle sensor and a floating ball; one end of the light rod is connected with the floating ball, and the other end of the light rod is connected with the rotating shaft; the floating ball is arranged on the liquid level; the angle sensor is arranged on the light rod; the angle sensor is in communication connection with the measuring instrument.
The utility model has the advantages that: the utility model discloses a high accuracy liquid level continuous measurement device can continuous measurement liquid level height and accurate demonstration liquid level height, and measurement accuracy is high, and the error is little, and is with low costs, and simple structure can be according to the real-time change continuous measurement liquid level height of liquid level.
Furthermore, the measuring instrument comprises a singlechip module, a power supply module, a display module, an angle sensor module, a crystal oscillator module and a downloading module; the singlechip module is electrically connected with the power supply module; the display module, the angle sensor module, the crystal oscillator module and the downloading module are all in communication connection with the single chip microcomputer module.
The beneficial effects of the further scheme are as follows: the utility model discloses in, angle sensor and measuring apparatu communication connection, the transmission signal of being convenient for, the accurate liquid level of measuring.
Furthermore, the main control chip of the single chip microcomputer module adopts a chip U2 with the model number of STC15W4K32S 4; the GND pin of chip U2 is connected to ground.
The beneficial effects of the further scheme are as follows: in the utility model, the main control chip of the single chip module adopts a chip U2 with the model of STC15W4K32S 4; the GND pin of the chip U2 is grounded; the single chip microcomputer STC15W4K32S4 has low power consumption, can run programs by adding a power supply to the single chip microcomputer chip, greatly simplifies the peripheral circuit of the single chip microcomputer application system, and ensures that the design of the single chip microcomputer application system is simpler and more convenient and the system performance is more efficient and reliable.
Further, the power supply module comprises a grounding electrolytic capacitor E1, a grounding electrolytic capacitor E2, a grounding capacitor C1, a grounding capacitor C2, a double-control switch S1, a resistor R1, a power indicator LED1, a port P1 and a grounding voltage stabilizing chip U1 with the model of LM 7805; the 1 st pin and the 2 nd pin of the port P1 are grounded, and the 3 rd pin of the port P1 is respectively connected with the movable end and the first fixed end of the double-control switch S1; the second fixed end of the double-control switch S1 is respectively connected with a grounding electrolytic capacitor E1, a grounding capacitor C1 and a Vin pin of a chip U1; the GND pin of the chip U1 is grounded; a Vout pin of the chip U1 is respectively connected with one end of the grounding electrolytic capacitor E2, the grounding capacitor C2 and the resistor R1 and a VCC pin of the chip U2; the other end of the resistor R1 is connected with the anode of a power indicator LED 1; the negative terminal of the power indicator LED1 is connected to ground.
The beneficial effects of the further scheme are as follows: the utility model discloses in, power module provides reliable and stable power supply for the device, makes the device normal operating work.
Further, the display module comprises a main control chip J1 with a model of LCD12864 and a slide rheostat R2; the K pin of the chip J1 is grounded; the pin A and the pin VCC of the chip J1 are both connected with the pin VCC of the chip U2; the VO pin of the chip J1 is connected with the sliding end of the sliding rheostat R2; the first fixed end of the slide rheostat R2 is grounded, and the second fixed end of the slide rheostat R2 is connected with a VOUT pin of the chip J1; the RS pin, the R/W pin and the E pin of the chip J1 are respectively connected with the P1.0-P1.2 pins of the chip U2 in a one-to-one correspondence manner; pins DBO-DB7 of the chip J1 are correspondingly connected with pins P0.0-P0.7 of the chip U2 one by one; the PSB pin of the chip J1 is connected with the P1.3 pin of the chip U2; the RST pin of chip J1 is connected to the P1.4 pin of chip U2.
The beneficial effects of the further scheme are as follows: the utility model discloses in, the LCD12864 display screen need not the chip selection signal, simplifies the device design, can accurate demonstration liquid level height, and it is clear to show, the liquid level height result that the direct observation of being convenient for recorded.
Further, the main control chip of the angle sensor module adopts a chip U3 with a model of MPU 6050; the GND pin of the chip U3 is grounded; the VCC pin of the chip U3 is connected with the VCC pin of U2; the SCL pin of the chip U3 is connected with the P2.0 pin of the chip U2; the SDA pin of chip U3 is connected to the P2.1 pin of chip U2.
The beneficial effects of the further scheme are as follows: the utility model discloses in, angle sensor MPU6050 measurement accuracy is high, and liquid level measurement is accurate, can be accurate to 0.1mm to the sexual valence relative altitude.
Further, the crystal oscillator module comprises a grounding capacitor C4, a grounding capacitor C5, a grounding capacitor C6, a grounding electrolytic capacitor E4 and an external crystal oscillator XTAL; one end of an external crystal oscillator XTAL is respectively connected with a grounding capacitor C4 and a P1.6 pin of a chip U2; the other end of the external crystal oscillator XTAL is respectively connected with a grounding capacitor C5 and a P1.5 pin of a chip U1; the VCC pin of the chip U2 is connected to the ground capacitor C6 and the ground electrolytic capacitor E4, respectively.
The beneficial effects of the further scheme are as follows: the utility model discloses in, the crystal oscillator module can reduce external environment's influence, reduces the instability, improves the precision, reduces the cost.
Further, the download module comprises a grounding capacitor C3, a grounding electrolytic capacitor E3 and a port P2; the 1 st pin of the port P2 is grounded; the 2 nd pin of the port P2 is connected with the P3.0 pin of the chip U2; the 3 rd pin of the port P2 is connected with the P3.1 pin of the chip U1; the 4 th pin of the port P2 is connected to the ground capacitor C3, the ground electrolytic capacitor E3 and the VCC pin of the chip U2, respectively.
The beneficial effects of the further scheme are as follows: the utility model discloses in, the module of downloading is convenient for data transmission, and download procedure convenient and fast, the operation of being convenient for.
Drawings
FIG. 1 is a schematic structural diagram of a high-precision liquid level continuous measuring device;
FIG. 2 is a schematic view of the structure of the measuring instrument;
FIG. 3 is a circuit diagram of the single chip module and the crystal oscillator module;
FIG. 4 is a circuit diagram of a power module;
FIG. 5 is a circuit diagram of a display module;
FIG. 6 is a circuit diagram of an angle sensor module;
FIG. 7 is a circuit diagram of a download module;
in the figure, 1, a lightweight rod; 2. a rotating shaft; 3. an angle sensor; 4. a floating ball; 5. a single chip module; 6. a power supply module; 7. a display module; 8. an angle sensor module; 9. a crystal oscillator module; 10. and a downloading module.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the utility model provides a high-precision liquid level continuous measuring device, which comprises a measuring instrument, a light rod 1, a rotating shaft 2, an angle sensor 3 and a floating ball 4; one end of the light rod 1 is connected with the floating ball 4, and the other end is connected with the rotating shaft 2; the floating ball 4 is arranged on the liquid level; the angle sensor 3 is arranged on the light rod 1; the angle sensor 3 is in communication with the measuring device.
In the embodiment of the present invention, as shown in fig. 2, the measuring apparatus includes a single chip module 5, a power module 6, a display module 7, an angle sensor module 8, a crystal oscillator module 9, and a download module 10; the singlechip module 5 is electrically connected with the power module 6; the display module 7, the angle sensor module 8, the crystal oscillator module 9 and the download module 10 are all in communication connection with the single chip microcomputer module 5. The utility model discloses in, angle sensor 3 and measuring apparatu communication connection, the transmission signal of being convenient for, the accurate liquid level of measuring.
In the embodiment of the present invention, as shown in fig. 3, the main control chip of the single chip module 5 adopts a chip U2 with model number STC15W4K32S 4; the GND pin of chip U2 is connected to ground. In the utility model, the main control chip of the single chip module adopts a chip U2 with the model of STC15W4K32S 4; the GND pin of the chip U2 is grounded; the single chip microcomputer STC15W4K32S4 has low power consumption, can run programs by adding a power supply to the single chip microcomputer chip, greatly simplifies the peripheral circuit of the single chip microcomputer application system, and ensures that the design of the single chip microcomputer application system is simpler and more convenient and the system performance is more efficient and reliable.
In the embodiment of the present invention, as shown in fig. 4, the power module 6 includes a grounded electrolytic capacitor E1, a grounded electrolytic capacitor E2, a grounded capacitor C1, a grounded capacitor C2, a dual-control switch S1, a resistor R1, a power indicator LED1, a port P1, and a grounded voltage-stabilizing chip U1 with a model LM 7805; the 1 st pin and the 2 nd pin of the port P1 are grounded, and the 3 rd pin of the port P1 is respectively connected with the movable end and the first fixed end of the double-control switch S1; the second fixed end of the double-control switch S1 is respectively connected with a grounding electrolytic capacitor E1, a grounding capacitor C1 and a Vin pin of a chip U1; the GND pin of the chip U1 is grounded; a Vout pin of the chip U1 is respectively connected with one end of the grounding electrolytic capacitor E2, the grounding capacitor C2 and the resistor R1 and a VCC pin of the chip U2; the other end of the resistor R1 is connected with the anode of a power indicator LED 1; the negative terminal of the power indicator LED1 is connected to ground. The utility model discloses in, power module provides reliable and stable power supply for the device, makes the device normal operating work.
In the embodiment of the present invention, as shown in fig. 5, the display module 7 includes a main control chip J1 with a model of LCD12864 and a slide rheostat R2; the K pin of the chip J1 is grounded; the pin A and the pin VCC of the chip J1 are both connected with the pin VCC of the chip U2; the VO pin of the chip J1 is connected with the sliding end of the sliding rheostat R2; the first fixed end of the slide rheostat R2 is grounded, and the second fixed end of the slide rheostat R2 is connected with a VOUT pin of the chip J1; the RS pin, the R/W pin and the E pin of the chip J1 are respectively connected with the P1.0-P1.2 pins of the chip U2 in a one-to-one correspondence manner; pins DBO-DB7 of the chip J1 are correspondingly connected with pins P0.0-P0.7 of the chip U2 one by one; the PSB pin of the chip J1 is connected with the P1.3 pin of the chip U2; the RST pin of chip J1 is connected to the P1.4 pin of chip U2. The utility model discloses in, the LCD12864 display screen need not the chip selection signal, simplifies the device design, can accurate demonstration liquid level height, and it is clear to show, the liquid level height result that the direct observation of being convenient for recorded.
In the embodiment of the present invention, as shown in fig. 6, the main control chip of the angle sensor module 8 adopts a chip U3 with a model of MPU 6050; the GND pin of the chip U3 is grounded; the VCC pin of the chip U3 is connected with the VCC pin of U2; the SCL pin of the chip U3 is connected with the P2.0 pin of the chip U2; the SDA pin of chip U3 is connected to the P2.1 pin of chip U2. The utility model discloses in, angle sensor MPU6050 measurement accuracy is high, and liquid level measurement is accurate, can be accurate to 0.1mm to the sexual valence relative altitude.
In the embodiment of the present invention, as shown in fig. 3, the crystal oscillator module 9 includes a grounded capacitor C4, a grounded capacitor C5, a grounded capacitor C6, a grounded electrolytic capacitor E4, and an external crystal oscillator XTAL; one end of an external crystal oscillator XTAL is respectively connected with a grounding capacitor C4 and a P1.6 pin of a chip U2; the other end of the external crystal oscillator XTAL is respectively connected with a grounding capacitor C5 and a P1.5 pin of a chip U1; the VCC pin of the chip U2 is connected to the ground capacitor C6 and the ground electrolytic capacitor E4, respectively. The utility model discloses in, the crystal oscillator module can reduce external environment's influence, reduces the instability, improves the precision, reduces the cost.
In the embodiment of the present invention, as shown in fig. 7, the download module 10 includes a grounded capacitor C3, a grounded electrolytic capacitor E3, and a port P2; the 1 st pin of the port P2 is grounded; the 2 nd pin of the port P2 is connected with the P3.0 pin of the chip U2; the 3 rd pin of the port P2 is connected with the P3.1 pin of the chip U1; the 4 th pin of the port P2 is connected to the ground capacitor C3, the ground electrolytic capacitor E3 and the VCC pin of the chip U2, respectively. The utility model discloses in, the module of downloading is convenient for data transmission, and download procedure convenient and fast, the operation of being convenient for.
The utility model discloses a theory of operation and process do: in the utility model discloses a high accuracy liquid level continuous measurement device, floater 4 is being connected to the one end of light pole 1, and axis of rotation 2 is being connected and can rotate at will to the other end of light pole 1. Due to the influence of the buoyancy of the liquid, the floating ball 4 can rise or fall along with the change of the liquid level.
The floating ball 4 is acted by gravity, buoyancy and a light rod, the buoyancy borne by the floating ball 4 is kept unchanged no matter the height of the liquid level, and the distance from the center of the floating ball 4 to the liquid level is kept unchanged all the time.
Let the distance from the center of the floating ball 4 to the liquid level be a, the length of the light rod 1 be l, the radius of the floating ball 4 be r, and the distance from the rotating shaft 2 to the bottom of the liquid level be h1If the horizontal angle between the light bar 1 and the liquid surface is θ and the height of the liquid surface is h, h must be equal to h1-(a+(l+r)sin θ). Wherein l, r and h1Is a fixed value; a is related to the buoyancy of the liquid, and the value of a slightly changes for different liquids. After the type of liquid is determined, the value of a is determined, and the value of a has only a slight influence on the absolute height of the liquid level and has no influence on the relative height of the liquid level. Therefore, when the liquid type is not changed, the liquid level height can be calculated by measuring the horizontal angle θ.
In the high accuracy liquid level continuous measuring device course of operation, measure horizontal angle theta through angle sensor 3, transmit the horizontal angle theta who surveys for the singlechip through serial ports communication, the singlechip is calculated through above-mentioned formula, transmits gained liquid level height for display module 7, and display module 7 shows liquid level height on LCD12864 display screen. Wherein power module 6 stably supplies power for measuring device, and crystal oscillator module 9 reduces external environment's influence, improves the precision, and download module 10 is convenient for data transmission, and the download procedure is convenient and fast.
The utility model has the advantages that: the utility model discloses a high accuracy liquid level continuous measurement device can continuous measurement liquid level height and accurate demonstration liquid level height, and measurement accuracy is high, and the error is little, and is with low costs, and simple structure can be according to the real-time change continuous measurement liquid level height of liquid level.
It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention, and it is to be understood that the scope of the invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on the teachings of the present invention without departing from the spirit of the invention, and such modifications and combinations are still within the scope of the invention.
Claims (8)
1. A high-precision liquid level continuous measuring device is characterized by comprising a measuring instrument, a light rod (1), a rotating shaft (2), an angle sensor (3) and a floating ball (4); one end of the light rod (1) is connected with the floating ball (4), and the other end of the light rod is connected with the rotating shaft (2); the floating ball (4) is arranged on the liquid level; the angle sensor (3) is arranged on the light rod (1); the angle sensor (3) is in communication connection with the measuring instrument.
2. The high-precision liquid level continuous measuring device according to claim 1, wherein the measuring instrument comprises a single chip microcomputer module (5), a power supply module (6), a display module (7), an angle sensor module (8), a crystal oscillator module (9) and a download module (10); the single chip microcomputer module (5) is electrically connected with the power supply module (6); the display module (7), the angle sensor module (8), the crystal oscillator module (9) and the download module (10) are all in communication connection with the single chip microcomputer module (5).
3. The high-precision liquid level continuous measuring device according to claim 2, characterized in that the main control chip of the single chip microcomputer module (5) adopts a chip U2 with model number STC15W4K32S 4; the GND pin of the chip U2 is grounded.
4. The high-precision liquid level continuous measuring device according to the claim 3, characterized in that the power supply module (6) comprises a grounding electrolytic capacitor E1, a grounding electrolytic capacitor E2, a grounding capacitor C1, a grounding capacitor C2, a double-control switch S1, a resistor R1, a power indicator LED1, a port P1 and a grounding voltage-stabilizing chip U1 with the model number LM 7805; the 1 st pin and the 2 nd pin of the port P1 are grounded, and the 3 rd pin of the port P1 is respectively connected with the movable end and the first fixed end of the double-control switch S1; the second fixed end of the double-control switch S1 is respectively connected with a grounding electrolytic capacitor E1, a grounding capacitor C1 and a Vin pin of a chip U1; the GND pin of the chip U1 is grounded; the Vout pin of the chip U1 is respectively connected with one end of a grounding electrolytic capacitor E2, a grounding capacitor C2, a resistor R1 and a VCC pin of the chip U2; the other end of the resistor R1 is connected with the anode of a power indicator LED 1; the negative terminal of the power indicator LED1 is grounded.
5. The continuous measuring device of high precision liquid level according to claim 3, characterized in that the display module (7) comprises a master control chip J1 model LCD12864 and a slide rheostat R2; the K pin of the chip J1 is grounded; the pin A and the pin VCC of the chip J1 are both connected with the pin VCC of the chip U2; the VO pin of the chip J1 is connected with the sliding end of the sliding rheostat R2; the first fixed end of the slide rheostat R2 is grounded, and the second fixed end of the slide rheostat R2 is connected with a VOUT pin of a chip J1; the RS pin, the R/W pin and the E pin of the chip J1 are respectively connected with the P1.0-P1.2 pins of the chip U2 in a one-to-one correspondence manner; the DBO-DB7 pins of the chip J1 are respectively connected with the P0.0-P0.7 pins of the chip U2 in a one-to-one correspondence manner; the PSB pin of the chip J1 is connected with the P1.3 pin of the chip U2; the RST pin of the chip J1 is connected to the P1.4 pin of the chip U2.
6. A high-precision liquid level continuous measuring device according to claim 3, characterized in that the main control chip of the angle sensor module (8) adopts a chip U3 with a model number of MPU 6050; the GND pin of the chip U3 is grounded; the VCC pin of the chip U3 is connected with the VCC pin of U2; the SCL pin of the chip U3 is connected with the P2.0 pin of the chip U2; the SDA pin of the chip U3 is connected to the P2.1 pin of the chip U2.
7. The high precision liquid level continuous measuring device according to claim 3, characterized in that the crystal oscillator module (9) comprises a grounded capacitor C4, a grounded capacitor C5, a grounded capacitor C6, a grounded electrolytic capacitor E4 and an external crystal oscillator XTAL; one end of the external crystal oscillator XTAL is respectively connected with a grounding capacitor C4 and a P1.6 pin of a chip U2; the other end of the external crystal oscillator XTAL is respectively connected with a grounding capacitor C5 and a P1.5 pin of a chip U1; and the VCC pin of the chip U2 is respectively connected with a grounding capacitor C6 and a grounding electrolytic capacitor E4.
8. The high precision continuous liquid level measuring device according to claim 3, characterized by the download module (10) comprising a grounded capacitor C3, a grounded electrolytic capacitor E3 and a port P2; the 1 st pin of the port P2 is grounded; the 2 nd pin of the port P2 is connected with the P3.0 pin of the chip U2; the 3 rd pin of the port P2 is connected with the P3.1 pin of the chip U1; the 4 th pin of the port P2 is respectively connected with a grounding capacitor C3, a grounding electrolytic capacitor E3 and a VCC pin of a chip U2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921751509.4U CN210426704U (en) | 2019-10-18 | 2019-10-18 | High-precision liquid level continuous measuring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921751509.4U CN210426704U (en) | 2019-10-18 | 2019-10-18 | High-precision liquid level continuous measuring device |
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| CN210426704U true CN210426704U (en) | 2020-04-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659493A (en) * | 2022-02-09 | 2022-06-24 | 徐杰 | Novel static level gauge testing mechanism and method |
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2019
- 2019-10-18 CN CN201921751509.4U patent/CN210426704U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659493A (en) * | 2022-02-09 | 2022-06-24 | 徐杰 | Novel static level gauge testing mechanism and method |
| CN114659493B (en) * | 2022-02-09 | 2023-08-25 | 广州建筑工程监理有限公司 | Static level gauge testing mechanism and method |
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