CN201392303Y - On-line electronic hydrometer - Google Patents
On-line electronic hydrometer Download PDFInfo
- Publication number
- CN201392303Y CN201392303Y CN200920067483U CN200920067483U CN201392303Y CN 201392303 Y CN201392303 Y CN 201392303Y CN 200920067483 U CN200920067483 U CN 200920067483U CN 200920067483 U CN200920067483 U CN 200920067483U CN 201392303 Y CN201392303 Y CN 201392303Y
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- CN
- China
- Prior art keywords
- chip microcomputer
- pulling force
- force sensor
- converter
- scm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model relates to an on-line electronic hydrometer comprising solution to be detected, a floater, a tension sensor, a measurement circuit, an A/D converter, a single-chip microcomputer system and a liquid crystal display screen. The floater is suspended below the tension sensor; and electric signals output by the tension sensor are detected and amplified via the measurement circuit and then are transmitted into the A/D converter to be converted, and finally are transmitted into the single-chip microcomputer system which displays the collected specific gravity on the liquid crystal display screen in a real-time way. The on-line electronic hydrometer has the advantages of realization of on-line automatic measurement of liquid specific gravity, simple structure, easy implementation and improvement of detection means.
Description
Technical field
The utility model relates to a kind of measuring instrument field, particularly a kind of online electric liquid picnometer.
Background technology
At present, measure liquid specific gravity and be generally first sampling, use this proportion of specific gravity balance test sample again.The method only can realize off-line measurement, and adopts manually-operated, and reading error varies with each individual, and precision is not high, not robotization of process.
Summary of the invention
The utility model is at existing not robotization of liquid specific density measurement, problem that precision is not high, has proposed a kind of online electric liquid picnometer, can make things convenient for, realize tintometric on-line measurement accurately, and is simple in structure, is easy to realize.
The technical solution of the utility model is: a kind of online electric liquid picnometer, comprise solution to be measured, float, pulling force sensor, metering circuit, A/D converter, Single Chip Microcomputer (SCM) system, LCDs, float hangs over the below of pulling force sensor, the electric signal of pulling force sensor output is sent into the A/D converter conversion after metering circuit detects processing and amplifying after, send into Single Chip Microcomputer (SCM) system again, Single Chip Microcomputer (SCM) system is presented at the rate of specific gravity that collects on the LCDs in real time.
The bridge circuit that described metering circuit is made up of 4 resistance and constitute by reverse ratio amplifying circuit two parts that amplifier and resistance are formed.
The beneficial effects of the utility model are: the online electric liquid picnometer of the utility model, realize the on-line automatic measurement of liquid specific gravity, and simple in structure, be easy to realize, promoted detection means.
Description of drawings
Fig. 1 is the structural representation of the online electric liquid picnometer of the utility model;
Fig. 2 is the theory structure block diagram of the online electric liquid picnometer of the utility model;
Fig. 3 is the metering circuit figure of the online electric liquid picnometer of the utility model.
Embodiment
The structure and the principle schematic of online as shown in Figure 1, 2 electronics solution concentration meter, online electronics solution concentration meter comprises solution 1 to be measured, float 2, pulling force sensor 3, metering circuit 4, A/D converter 5, Single Chip Microcomputer (SCM) system 6, LCDs 7, and float 2 hangs over the below of pulling force sensor 3; During use float 2 is immersed in the liquid 1, float 2 is subjected to liquid 1 buoyancy, the output of pulling force sensor 3 will produce a signal difference, this signal difference is directly proportional with buoyancy, because buoyancy equals the product of liquid 1 proportion, acceleration of gravity and float 2 volumes, therefore the signal difference of pulling force sensor 3 outputs also is directly proportional with liquid 1 proportion size, can record the proportion of liquid 1 according to this signal.The electric signal of pulling force sensor 3 outputs detects amplifying circuit through metering circuit 4 and handles, and sends into Single Chip Microcomputer (SCM) system 6 after A/D converter 5, and Single Chip Microcomputer (SCM) system 6 is presented at the rate of specific gravity that collects on the LCDs 7 in real time.
By metering circuit shown in Figure 34 by R
1, R
2, R
3, R
4The bridge circuit and amplifier A, the R that form
5, R
6, R
7Reverse ratio amplifying circuit two parts of forming constitute, wherein R
1Be working strain gauge, stick on the pulling force sensor R
2Be dummy gauge, R
3, R
4Be fixed resistance.When tension variations that pulling force sensor bears, R
1Value will change.When pulling force sensor is not subjected to pulling force, regulate R
1, R
2, R
3, R
4Size, make U
0Be output as zero.
Claims (2)
1, a kind of online electric liquid picnometer, it is characterized in that, comprise solution to be measured, float, pulling force sensor, metering circuit, A/D converter, Single Chip Microcomputer (SCM) system, LCDs, float hangs over the below of pulling force sensor, the electric signal of pulling force sensor output is sent into the A/D converter conversion after metering circuit detects processing and amplifying after, send into Single Chip Microcomputer (SCM) system again, Single Chip Microcomputer (SCM) system is presented at the rate of specific gravity that collects on the LCDs in real time.
2, according to the described online electric liquid picnometer of claim 1, it is characterized in that the bridge circuit that described metering circuit is made up of 4 resistance and constitute by reverse ratio amplifying circuit two parts that amplifier and resistance are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920067483U CN201392303Y (en) | 2009-02-04 | 2009-02-04 | On-line electronic hydrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920067483U CN201392303Y (en) | 2009-02-04 | 2009-02-04 | On-line electronic hydrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201392303Y true CN201392303Y (en) | 2010-01-27 |
Family
ID=41599124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920067483U Expired - Fee Related CN201392303Y (en) | 2009-02-04 | 2009-02-04 | On-line electronic hydrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201392303Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011123912A1 (en) * | 2010-04-09 | 2011-10-13 | Dos Santos Silva Andre | Water consumption regulator |
| CN103091202A (en) * | 2011-11-07 | 2013-05-08 | 张遥远 | Liquid density measurement device |
| CN104655524A (en) * | 2015-02-28 | 2015-05-27 | 徐文政 | Electronic liquid densimeter |
| CN105067481A (en) * | 2015-07-09 | 2015-11-18 | 浙江蓝箭称重技术有限公司 | Digital mud specific gravity tester and testing method |
| CN106226194A (en) * | 2016-07-07 | 2016-12-14 | 东北农业大学 | Potato starch content automatic assay method |
| CN106568678A (en) * | 2016-10-14 | 2017-04-19 | 李晨天 | Micro movement hammer liquid density meter based on end dynamic data analysis technology |
| CN111220495A (en) * | 2018-11-26 | 2020-06-02 | 广州市同声电子科技有限公司 | Automatic measuring recorder for urine specific gravity and its measuring method |
-
2009
- 2009-02-04 CN CN200920067483U patent/CN201392303Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011123912A1 (en) * | 2010-04-09 | 2011-10-13 | Dos Santos Silva Andre | Water consumption regulator |
| CN103091202A (en) * | 2011-11-07 | 2013-05-08 | 张遥远 | Liquid density measurement device |
| CN103091202B (en) * | 2011-11-07 | 2015-06-03 | 张遥远 | Liquid density measurement device |
| CN104655524A (en) * | 2015-02-28 | 2015-05-27 | 徐文政 | Electronic liquid densimeter |
| CN105067481A (en) * | 2015-07-09 | 2015-11-18 | 浙江蓝箭称重技术有限公司 | Digital mud specific gravity tester and testing method |
| CN106226194A (en) * | 2016-07-07 | 2016-12-14 | 东北农业大学 | Potato starch content automatic assay method |
| CN106568678A (en) * | 2016-10-14 | 2017-04-19 | 李晨天 | Micro movement hammer liquid density meter based on end dynamic data analysis technology |
| CN106568678B (en) * | 2016-10-14 | 2020-12-29 | 李晨天 | Micro-motion hammer liquid densimeter based on tail end dynamic data analysis technology |
| CN111220495A (en) * | 2018-11-26 | 2020-06-02 | 广州市同声电子科技有限公司 | Automatic measuring recorder for urine specific gravity and its measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20110204 |