CN203365270U - Solution density detection device based on pneumatic sensor - Google Patents
Solution density detection device based on pneumatic sensor Download PDFInfo
- Publication number
- CN203365270U CN203365270U CN2013203313672U CN201320331367U CN203365270U CN 203365270 U CN203365270 U CN 203365270U CN 2013203313672 U CN2013203313672 U CN 2013203313672U CN 201320331367 U CN201320331367 U CN 201320331367U CN 203365270 U CN203365270 U CN 203365270U
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- circuit
- solution
- air pressure
- solution density
- baroceptor
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Abstract
The utility model discloses a solution density detection device based on a pneumatic sensor, relates to the field of solution density detection, and solves the problem that a conventional density detection device is complex in structure and inconvenient to carry. The solution density detection device adopts the structure that a container with scales is used for being filled with a solution to be detected; the tail end of a circular tube with scales is sleeved with a probe of the pneumatic sensor in a sealing manner; a pneumatic detection circuit is used for detecting air pressure outside the solution to be detected or detecting air pressure inside the circular tube with the scales; a signal output end of the pneumatic detection circuit is connected to a signal input end of a singlechip control circuit; a solution density display signal output end of the singlechip control circuit is connected to a display signal input end of a liquid crystal display circuit; a keyboard input circuit is used for inputting a solution height value into the singlechip control circuit 2. The solution density detection device is suitable for the detection of solution density.
Description
Technical field
The utility model relates to the solution density detection field.
Background technology
Densitometer is mainly used in measuring the proportion of various fluids, semifluid or potpourri as a kind of device for detecting density, in numerous industries such as oil exploitation, oil refining, chemical industry, metallurgy, mine, cement, coal, light industry, water conservancy, food, printings, have a wide range of applications.Development along with technique and technology, densitometric kind also becomes more diverse, mainly contain float type densimeter, static pressure type densitometer, vibrating densimeter and radioisotope densimeter, the raising in various degree that accuracy of detection also has, the scope of detectable substance is also in expansion progressively, but still there is complex structure, the problem of being inconvenient to carry.
The utility model content
The utility model is in order to solve existing device for detecting density complex structure, and the problem of being inconvenient to carry, proposed the device that a kind of solution density based on baroceptor detects.
A kind of device that detects solution density based on baroceptor described in the utility model, this device comprises to be with graduated container, to be with graduated pipe and detecting unit, and this detecting unit is comprised of air pressure testing circuit, single chip machine controlling circuit, liquid crystal display circuit and keyboard input circuit;
Be with graduated container for holding solution to be measured; End seal with graduated pipe is socketed on the probe of air pressure testing circuit;
The air pressure testing circuit is for detection of the air pressure of solution to be measured outside or with the air pressure of graduated pipe inside; The signal output part of air pressure testing circuit connects the signal input part of single chip machine controlling circuit, the solution density display output terminal of single chip machine controlling circuit connects the display input end of liquid crystal display circuit, and the keyboard input circuit is for inputting the solution height value to single chip machine controlling circuit.
Device described in the utility model is the density that the atmospheric pressure value that utilizes the baroceptor utilization to detect solution detects solution, and it is simple in structure, volume is little, be easy to carry.
The accompanying drawing explanation
The structural representation of the device that Fig. 1 is a kind of solution density detection based on baroceptor described in the utility model.
The principle schematic of the detecting unit of the device that Fig. 2 is a kind of solution density detection based on baroceptor described in the utility model;
Fig. 3 is the electrical structure schematic diagram of air pressure testing circuit.
Embodiment
Embodiment one: present embodiment is described in conjunction with Fig. 1 and Fig. 2, the device that the described a kind of solution density based on baroceptor of present embodiment detects, this device comprises to be with graduated container A, to be with graduated pipe B and detecting unit, and this detecting unit is comprised of air pressure testing circuit 1, single chip machine controlling circuit 2, liquid crystal display circuit 3 and keyboard input circuit 4;
Be with graduated container A for holding solution to be measured; End seal with graduated pipe B is socketed on the probe of baroceptor;
The air pressure testing circuit is for detection of the air pressure of solution to be measured outside or with the air pressure of graduated pipe B inside; The signal output part of air pressure testing circuit 1 connects the signal input part of single chip machine controlling circuit 2, the solution density display output terminal of single chip machine controlling circuit 2 connects the display input end of liquid crystal display circuit 3, and keyboard input circuit 4 is for inputting the solution height values to single chip machine controlling circuit 2.
Embodiment two: present embodiment is described in conjunction with Fig. 3, present embodiment is further illustrating of device that the described a kind of solution density based on baroceptor of embodiment one is detected, and air pressure testing circuit 1 is comprised of baroceptor 1-1, amplifying circuit 1-2 and A/D change-over circuit 1-3;
The signal output part of baroceptor 1-1 connects the signal input part of amplifying circuit 1-2, and the amplified signal output terminal of amplifying circuit 1-2 connects the input end of analog signal of A/D change-over circuit 1-4; The signal output part that the digital signal output end of A/D change-over circuit 1-4 is air pressure testing circuit 1.
In the solution that baroceptor detects, the pressure simulating signal converts analog quantity to digital quantity and sends single-chip microcomputer to through signal amplification circuit, A/D change-over circuit, outputs to liquid crystal display and show solution density after single-chip microcomputer is processed.
Embodiment three: present embodiment is further illustrating of device that the described a kind of solution density based on baroceptor of embodiment two is detected, and amplifying circuit 1-2 adopts the chip that model is INA114 to realize.
Embodiment four: present embodiment is further illustrating of device that the described a kind of solution density based on baroceptor of embodiment one is detected, and single chip machine controlling circuit 2 adopts the chip that models are STC80C51 to realize.
Embodiment five: present embodiment is further illustrating of device that the described a kind of solution density based on baroceptor of embodiment one is detected, and liquid crystal display circuit 3 adopts the liquid crystal that models are 12864 dot character types to realize.
The utility model carries out when solution concentration is measured first device being carried out to initialization, adopt baroceptor to detect atmospheric pressure value Po on every side, again pipe is pasted to chamber wall and insert liquid to be measured, read the scale value b of intraluminal fluid face scale value a and the outer liquid level of pipe, and the scale value b of intraluminal fluid face scale value a and the outer liquid level of pipe is inputted by keyboard, be input to single-chip microcomputer through the keyboard input circuit.Baroceptor detects intraductal pressure P1 simultaneously, the structural representation of the device that a kind of solution density based on baroceptor detects, and as shown in Figure 1, intraductal pressure passes through formula
P1=Po+ρ*g*h
Obtain, h=a-b wherein, solution density by
ρ=(P1-Po)/(g*h)
Obtain, the simulating signal of the pressure that baroceptor detects converts analog quantity to digital quantity and sends single-chip microcomputer to through signal amplification circuit, A/D change-over circuit, outputs to liquid crystal display and show solution density after single-chip microcomputer is processed.
Claims (5)
1. the device that solution density based on baroceptor detects, it is characterized in that, this device comprises to be with graduated container (A), to be with graduated pipe (B) and detecting unit, and this detecting unit is comprised of air pressure testing circuit (1), single chip machine controlling circuit (2), liquid crystal display circuit (3) and keyboard input circuit (4);
Be with graduated container (A) for holding solution to be measured; End seal with graduated pipe (B) is socketed on the probe of air pressure testing circuit (1), air pressure testing circuit (1) for detection of the air pressure signal of solution to be measured outside or with graduated pipe (B) inner air pressure signal; The signal output part of air pressure testing circuit (1) connects the signal input part of single chip machine controlling circuit (2), the solution density display output terminal of single chip machine controlling circuit (2) connects the display input end of liquid crystal display circuit (3), and keyboard input circuit (4) is for inputting the solution height value to single chip machine controlling circuit (2).
2. the device that a kind of solution density based on baroceptor according to claim 1 detects is characterized in that air pressure testing circuit (1) is comprised of baroceptor (1-1), amplifying circuit (1-2) and A/D change-over circuit (1-3);
The signal output part of baroceptor (1-1) connects the signal input part of amplifying circuit (1-2), and the amplified signal output terminal of amplifying circuit (1-2) connects the input end of analog signal of A/D change-over circuit (1-4); The signal output part that the digital signal output end of A/D change-over circuit (1-4) is air pressure testing circuit (1).
3. the device that a kind of solution density based on baroceptor according to claim 2 detects, is characterized in that, amplifying circuit (1-2) adopts the chip that model is INA114 to realize.
4. the device that a kind of solution density based on baroceptor according to claim 1 detects, is characterized in that, single chip machine controlling circuit (2) adopts the chip that model is STC80C51 to realize.
5. the device that a kind of solution density based on baroceptor according to claim 1 detects, is characterized in that, liquid crystal display circuit (3) adopts the liquid crystal that model is 12864 dot character types to realize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203313672U CN203365270U (en) | 2013-06-08 | 2013-06-08 | Solution density detection device based on pneumatic sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203313672U CN203365270U (en) | 2013-06-08 | 2013-06-08 | Solution density detection device based on pneumatic sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203365270U true CN203365270U (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203313672U Expired - Fee Related CN203365270U (en) | 2013-06-08 | 2013-06-08 | Solution density detection device based on pneumatic sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203365270U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403483A (en) * | 2015-12-29 | 2016-03-16 | 长沙学院 | Solution density differential pressure measurement apparatus and measurement method thereof |
-
2013
- 2013-06-08 CN CN2013203313672U patent/CN203365270U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403483A (en) * | 2015-12-29 | 2016-03-16 | 长沙学院 | Solution density differential pressure measurement apparatus and measurement method thereof |
| CN105403483B (en) * | 2015-12-29 | 2018-07-31 | 长沙学院 | pressure difference solution density measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20150608 |
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| EXPY | Termination of patent right or utility model |