CN215931752U - High-precision urea concentration quality sensor - Google Patents
High-precision urea concentration quality sensor Download PDFInfo
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- CN215931752U CN215931752U CN202121538409.0U CN202121538409U CN215931752U CN 215931752 U CN215931752 U CN 215931752U CN 202121538409 U CN202121538409 U CN 202121538409U CN 215931752 U CN215931752 U CN 215931752U
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Abstract
The utility model relates to a high-precision urea concentration quality sensor, which comprises a hexagonal shell, a circular shell, a small water tank, a large water tank and a pagoda part, and is characterized in that: the hexagonal shell and the round shell are integral shells made of stainless steel. The lateral surface of the circular shell is provided with water tanks with different sizes, a piezoelectric crystal is bonded at the position C at the inner bottom of the hexagonal shell to form an ultrasonic sensor, a temperature sensor is arranged, the distance between the point C and the point D at the bottom surface of the circular shell is the sound distance of ultrasonic waves, the pagoda component is connected with an ultrasonic wave metering module, a single chip microcomputer and a display module through signal lines, the propagation speed in urea liquid is calculated through the time difference of signal receiving and sending of the ultrasonic sensor, temperature compensation calculation processing is carried out through the temperature sensor, and the single chip microcomputer converts the accurate concentration value of the urea liquid according to different sound velocities of the ultrasonic waves in the urea liquid.
Description
Technical Field
The utility model relates to the technical field of ultrasonic liquid measurement, in particular to a high-precision ultrasonic urea concentration quality sensor.
Background
At present, similar products at home and abroad are numerous, the ultrasonic time difference method is adopted for measurement, the calculation is correct, but when the concentration quality of the urea liquid for the vehicle is measured, the actual conditions that the liquid in a urea box shakes unstably, bubbles are easily generated and the temperature of the urea liquid is not uniform during low-temperature heating exist, the three factors affect the accurate measurement of ultrasonic waves, the measurement is inaccurate, the error is large, the false alarm occurs in a detection system and the like are caused. The propagation speed of ultrasonic waves in liquid is directly related to the temperature, density, bubbles and liquid stability of the liquid, the measurement of the concentration of urea is greatly influenced, and the bubbles generated during the shaking and heating of the urea liquid have the greatest influence on the measurement of the ultrasonic waves, so that the problems are thoroughly solved by adopting advanced technology and the most reasonable product process structure.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a high-precision ultrasonic urea concentration quality sensor, and in order to achieve the purposes, the utility model adopts the following technical scheme: the utility model provides a high accuracy urea concentration quality sensor, includes hexagonal shell, circle casing, precious tower spare, piezoelectric crystal, temperature sensor, ultrasonic wave calculation module, singlechip, signal line, its characterized in that: the shell is composed of a round shell and a hexagonal shell which are made of stainless steel metal materials, water tanks with different sizes are respectively arranged on the side faces of the round shell, a pagoda piece is arranged on the side face of the hexagonal shell, a piezoelectric crystal is bonded to the bottom of the hexagonal shell, the piezoelectric crystal is bonded to the bottom face C of the hexagonal shell to form a high-frequency ultrasonic sensor, the high-frequency ultrasonic sensor is connected with an ultrasonic computing module, a single chip microcomputer and a display module through signal lines, the ultrasonic computing module sends ultrasonic high-frequency signals, the piezoelectric crystal transmits the ultrasonic signals through the bottom C of the hexagonal shell, the sound waves touch the bottom D of a circular tube and reflect the signals which are received by the piezoelectric crystal and transmitted to the computing module, the temperature sensor carries out temperature compensation computing processing on urea liquid, the propagation speed in the urea liquid is computed by an ultrasonic time difference method, and the accurate concentration value is converted by the single chip microcomputer.
Further, the length of the round shell and the hexagonal pipe is 47 mm.
Further, the water tank of the round shell is 31mm long and 11.8mm wide.
Further, the length of the circular shell is 35 mm.
The utility model has the advantages of simple structure, convenient installation, low manufacturing and production cost, temperature compensation, small bubble influence, good liquid stability and high measurement precision.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings, such as a stainless steel housing, a piezoelectric crystal, an ultrasonic computing module, a single chip, a temperature sensor, and a signal line, can be obtained according to the drawings without creative work.
FIG. 1 is a block diagram of the present invention:
fig. 2 is a schematic view of the overall structure of the present invention.
In the figure, (1) is a hexagonal shell, (2) a circular shell, (3) a small water tank, (4) a large water tank, (5) a pagoda piece, (6) a piezoelectric crystal sensor, (7) an ultrasonic wave calculation module, (8) a single chip microcomputer, (9) a display module, (10) a signal wire, and (11) a temperature sensor.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings.
According to fig. 1-2: the utility model relates to a high-precision ultrasonic urea concentration quality sensor.
Including hexagonal casing 1, circle casing 2, little basin 3, big basin 4, precious tower 5, hexagonal casing 1 and circle casing 2 are the whole shell with stainless steel metal material preparation, and the intraductal bottom C department of hexagonal casing bonds and has piezoelectric crystal to constitute ultrasonic sensor to be equipped with temperature sensor, the distance between C point and the D point is the acoustic distance that ultrasonic sensor tested the speed, and the D point is the bottom surface of circle casing, also is ultrasonic reflection point. The signal line is connected with the ultrasonic wave metering module 7, the single chip microcomputer 8 and the display module 9, the sound velocity in the urea liquid is calculated according to an ultrasonic wave time difference method, temperature compensation processing is carried out on the liquid through the temperature sensor 11, and the accurate concentration value of the urea is converted through the single chip microcomputer according to different sound velocities of the ultrasonic waves in the urea liquid.
Further, the length of the round shell and the hexagonal shell is 47 mm.
Furthermore, the length of the large water tank on the side surface of the round shell is 31mm, and the width of the large water tank is 11.8 mm.
Further, the length of the circular shell is 35mm, and the outer diameter of the circular shell is 18 mm.
The utility model has the advantages of simple and reasonable structure, convenient installation, low manufacturing and production cost, small influence of the sensor on the liquid temperature, the liquid shaking and the air bubbles and high measurement precision.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, i.e. all equivalent variations and modifications made by the present invention are covered by the scope of the claims of the present invention, which is not limited by the examples herein.
Claims (3)
1. The utility model provides a high accuracy urea concentration quality sensor, includes hexagonal casing (1), round casing (2), piezoelectric crystal (6), temperature sensor (11), ultrasonic wave calculation module (7), singlechip (8), signal line (10), pagoda spare (5), its characterized in that: the round shell (2) and the hexagonal shell (1) are made of stainless steel metal materials, and water tanks with different sizes are respectively arranged on the side surfaces of the round shell (2); be equipped with precious tower (5) in hexagonal casing (1) side, piezoelectric crystal (6) are bonded to the bottom, constitute high frequency ultrasonic sensor, are connected with ultrasonic wave calculation module (7), singlechip (8), display module (9) through signal line (10).
2. A high accuracy urea concentration mass sensor according to claim 1, characterized in that: the length of the circular shell is 35mm, and the outer diameter of the circular shell is 18 mm.
3. A high accuracy urea concentration mass sensor according to claim 1, characterized in that: the large water tank on the side surface of the round shell is 31mm in length and 11.8mm in width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121538409.0U CN215931752U (en) | 2021-07-07 | 2021-07-07 | High-precision urea concentration quality sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121538409.0U CN215931752U (en) | 2021-07-07 | 2021-07-07 | High-precision urea concentration quality sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215931752U true CN215931752U (en) | 2022-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121538409.0U Active CN215931752U (en) | 2021-07-07 | 2021-07-07 | High-precision urea concentration quality sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215931752U (en) |
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2021
- 2021-07-07 CN CN202121538409.0U patent/CN215931752U/en active Active
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