CN2835995Y - End point judgment and automatic measuring device for multi-functional titrimeter - Google Patents
End point judgment and automatic measuring device for multi-functional titrimeter Download PDFInfo
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- CN2835995Y CN2835995Y CN 200520036267 CN200520036267U CN2835995Y CN 2835995 Y CN2835995 Y CN 2835995Y CN 200520036267 CN200520036267 CN 200520036267 CN 200520036267 U CN200520036267 U CN 200520036267U CN 2835995 Y CN2835995 Y CN 2835995Y
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Abstract
The utility model discloses an automatic measurement and control device used for judging the end point of a titration reaction according to the change of color, which comprises a measurement dark room, and an image sensor and a titration cup which are arranged in the measurement dark room, wherein titrant is driven to drop into the titration cup by a peristaltic pump; the starting and stopping and the flow speed of the peristaltic pump are controlled by a data processing device and a control device; image signals of solution in a drop sedimentation cup are conveyed to the data processing device by the image sensor; when the color of the image reaches the preset value, the control device controls the closure of the peristaltic pump or regulates the flow speed; the overall measurement process is controlled by the data processing device and the control device, and the titration process automatically finishes, thereby, the measurement of the micro-ion concentration can be realized, the color of the end point of titration is not needed to be manually judged by naked eyes; the content of the constituent waiting for test can be directly calculated by the data processing device and is not needed to be manually calculated.
Description
Affiliated technical field
The utility model relates to a kind of automaton of judging titration end-point with colorimetry method, be a kind of full-automatic multi-functional titrator of measuring indexs such as fatty acid, reducing sugar, acid value, peroxide value specifically, be applicable to the automatic measurement and control device of judging the drop reaction of terminal point in the fields such as grain and oil check, Food Inspection, chemical analysis according to change color.
Background technology
In the grain inspection assay method many drop reactions based on change color are arranged, such as: fatty acid value, acid value of lipids (acidity), peroxide value etc., but mostly adopt general pipes such as acid base titration, carry out manual titration, visual definite terminal point.Though its equipment is simple, be beneficial to popularization, personal error is bigger; The analysis result of same sample often all varies with each individual, and is particularly reacting particularly seriously aspect the fatty acid value mensuration, and measurement result does not have comparability, brings difficulty for the judgement grain quality, directly influences the country and people's interests.General buret is adopted in each grain and oil, feed, the many titrimetries in food inspection analysis room at present mostly, and automatic analysing apparatus on the market also mostly is the galvanochemistry automatic titration device, it all is not suitable for the mensuration of fatty acid value, acid value (acidity), peroxide value equal size, the full-automatic fast measuring instrument of domestic existing acid value of lipids, and the instrument of potentiometric determination grain fatty acid value, also there is not to measure simultaneously the multi-functional titrator of a plurality of indexs.
Summary of the invention
The purpose of this utility model is to overcome existing titrator and measures that terminal point is difficult for judging, the measurement result comparability is poor, the problem of function singleness, and provide a kind of content that can finish terminal point determining automatically, can calculate component to be measured automatically, and can detect the terminal point determining and the self-measuring device of the multi-functional titrator of many index respectively.
The purpose of this utility model reaches by following technical measures: this device comprises that at least one is measured darkroom, is arranged on the titration cup of measuring in the darkroom, traditional electromagnetic stirring system, imageing sensor, data processing equipment, control device and vs constant current adds the stream device.Wherein imageing sensor is arranged on the sidewall of measuring the darkroom and is positioned at the next door of titration cup.Imageing sensor also is electrically connected with the input end of data processing equipment simultaneously; Vs constant current liquid-adding device is made up of vs bottle and peristaltic pump.It communicates with titration cup by connecting pipe, and the peristaltic pump in the vs constant current liquid-adding device is electrically connected with the input end of control device simultaneously.
In the technical measures of the present utility model, also can be provided with colour photometer on the next door of measuring on the sidewall in darkroom and be positioned at titration cup and replace imageing sensor, this colour photometer also is electrically connected with the output terminal of data processing equipment simultaneously.
Vs constant current in the utility model technical measures adds the stream device, can also and be made up of vs bottle and obstruction pump serial connection, and obstruction pump wherein is electrically connected with the output terminal of control device simultaneously; Vs constant current liquid-adding device also can directly adopt Marriot constant current bottle and constitute in addition.
Drip in order to prevent that vs from missing in the technical measures of the present utility model, can also in the bottom in measuring the darkroom and be positioned at below the titration cup, be provided with the position switch that is subjected to the titration cup gravity control, this position switch also is electrically connected with an input end of control device simultaneously.
The utility model beneficial effect compared to existing technology is: because this measuring apparatus utilizes imageing sensor (or colour photometer) that the information translation of the solution colour variation to be measured of titration is become electric signal, pass to the content that data processing equipment and control device are finished titration process automatically and calculated component to be measured, thereby when avoiding carrying out the endpoint titration analysis, operating personnel's naked eyes are judged the color of solution and the personal error that reading produced of buret, improved measuring accuracy, have that error is little, the characteristic of good stability, reduced the trouble of artificial calculating in addition.And the mensuration work of plurality of cereals index summed up in the point that to detect indexs such as fatty acid in the grain, reducing sugar, acid value, acidity, peroxide value respectively on the instrument.And be not subjected to the ambient lighting condition effect, whole day all can be measured, and makes the measurement result comparability improve greatly, for the quality quality of accurately estimating grain provides more reliable data.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of the utility model embodiment 2.
Fig. 3 is the structural representation of the utility model embodiment 3.
The figure number explanation:
Measure darkroom 1 titration cup, 2 light sources 3
Imageing sensor 4 data processing equipments 5 position switchs 6
Stir micromotor 7 control device 8 titration constant current liquid-adding devices 9
Vs bottle 9-1 peristaltic pump 9-2 stirrer 10
Signal processing apparatus 14 signal pickup assemblies 15
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Embodiment one
As shown in Figure 1, this measuring apparatus has one to measure the darkroom, and is provided with the position switch 6 that is subjected to gravity control in the bottom in this measurement darkroom 1, and this position switch 6 is electrically connected with an input end of control device 8.And titration cup 2 just is arranged on and measures in the darkroom 1 this above position switch 6.In addition CCD or cmos image sensor 4 are arranged on the sidewall of measuring darkroom 1, and are positioned at the next door of titration cup 2.And this imageing sensor 4 also will be electrically connected with the input end of microcomputer data processing device 5.The output terminal of microcomputer data processing device 5 will be electrically connected with the input end of control device 8 simultaneously.The titration constant current liquid-adding device 9 of present embodiment is to be formed by vs bottle 9-1 and peristaltic pump 9-2 serial connection.Wherein peristaltic pump 9-2 communicates with titration cup 2 by connecting pipe, and peristaltic pump 9-2 also is electrically connected with the output terminal of control device 8 simultaneously.In addition the stirring micromotor 7 that has magnetic head in traditional electromagnetic stirring system is placed on measure 1 bottom, darkroom below, also this stirring micromotor 7 to be electrically connected with the output terminal of control device 8 simultaneously.And the stirrer in traditional electromagnetic stirring system 10 is put into titration cup 2.
This device starts when starting working, at first with the driving of the titration reagent solution of concentration known in the vs bottle by peristaltic pump, and in the solution to be measured in splashing in the titration cup.Along with splashing into of volumetric soiutions, imageing sensor is the image of solution in measuring titration cup all the time, and exports picture signal to the microcomputer data processing device.Follow the microcomputer data processing device with the signal Processing and the calculating that receive, and draw out titration curve and relevant data by printer.When color of image reached the titration end-point preset value, the microcomputer data processing device was passed to control device with control signal.Control peristaltic pump by control device again and stirring motor is closed, stop titration.This device can utilize the constant current principle of peristaltic pump to realize automatic gauge; The whole measurement overall process of this device is to be controlled by microcomputer data processing device and control device, finishes titration process automatically.And the content of solution component to be measured is directly calculated by the microcomputer data processing device.This by the imageing sensor number of delivering a letter to the microcomputer data processing device judge the mode of titration end-point color, control titration process can make measure accurately, little, the good stability of error, in the time of overcoming manual titration, naked eyes are judged the error that terminal point brings.
Embodiment two
As shown in Figure 2, the basic structure of present embodiment is identical with embodiment one.Its formation Embedded System Structure that just data processing equipment 5 and control device 8 is connected together allows input media 11 link to each other with it with output unit 12, can break away from microcomputer like this and come work.Wherein input media 11 is keyboard or button; Output unit 12 is display or LCDs.Not only cost is low, the saving energy to adopt this Embedded System Structure, and can make instrument miniaturization, is convenient to move and carry.The course of work of present embodiment and effect and embodiment one are identical.
Embodiment three
As shown in Figure 3, the basic structure of present embodiment is identical with embodiment one.It just will be arranged on the sidewall of measuring darkroom 1 originally and the imageing sensor 4 that is positioned at titration cup 2 next doors changes colour photometer 13 into.It is a variable signal of gathering appearance liquid color spectrum to be measured in the titration cup 2 by its signal pickup assembly 15 wherein, and the signal processing apparatus 14 that the signal of being gathered is sent into colour photometer by transmission line handled, read and calculated by microcomputer data processing device 5 then, relief control device 8 is controlled by necessary requirement.The course of work of present embodiment and effect and embodiment one are identical.
Claims (5)
1. one kind comprises that at least one is measured darkroom (1), is arranged on the titration cup (2) of measuring darkroom (1), the terminal point determining and the self-measuring device of the multi-functional titrator of traditional electromagnetic stirring system, imageing sensor (4), data processing equipment (5), control device (8) and vs constant current liquid-adding device (9), it is characterized in that imageing sensor (4) is arranged on the sidewall of measuring darkroom (1) and is positioned at the next door of titration cup (2), imageing sensor (4) also is electrically connected with the input end of data processing equipment (5) simultaneously; Vs constant current liquid-adding device (9) is made up of vs bottle (9-1) and peristaltic pump (9-2), and it communicates with titration cup 2 by connecting pipe, and the peristaltic pump (9-2) in the vs constant current liquid-adding device 9 is electrically connected with the output terminal of control device 8 simultaneously.
2. the terminal point determining of multi-functional titrator according to claim 1 and self-measuring device, it is characterized in that on the sidewall of measuring darkroom (1) and what be positioned at that the next door of titration cup (2) is provided with is that colour photometer (13) replaces imageing sensor (4), this colour photometer (13) also is electrically connected with the input end of data processing equipment (5) simultaneously.
3. the terminal point determining of multi-functional titrator according to claim 1 and 2 and self-measuring device, it is characterized in that vs constant current liquid-adding device (9) is formed by vs bottle (9-1) and obstruction pump (9-2) serial connection, obstruction pump (9-2) wherein is electrically connected with the output terminal of control device (8) simultaneously; Vs constant current liquid-adding device (9) also can directly adopt Marriot constant current bottle and constitute in addition.
4. the terminal point determining of multi-functional titrator according to claim 1 and 2 and self-measuring device, it is characterized in that the bottom in measuring darkroom (1) and be positioned at below the titration cup (2), be provided with the position switch (6) that is subjected to titration cup (2) gravity control, this position switch (6) also is electrically connected with an input end of control device (8) simultaneously.
5. the terminal point determining of multi-functional titrator according to claim 3 and self-measuring device.It is characterized in that the bottom in measuring darkroom (1) and be positioned at below the titration cup (2) that be provided with the position switch (6) that is subjected to titration cup (2) gravity control, this position switch (6) also is electrically connected with an input end of control device (8) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520036267 CN2835995Y (en) | 2005-11-25 | 2005-11-25 | End point judgment and automatic measuring device for multi-functional titrimeter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520036267 CN2835995Y (en) | 2005-11-25 | 2005-11-25 | End point judgment and automatic measuring device for multi-functional titrimeter |
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| CN2835995Y true CN2835995Y (en) | 2006-11-08 |
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| CN 200520036267 Expired - Fee Related CN2835995Y (en) | 2005-11-25 | 2005-11-25 | End point judgment and automatic measuring device for multi-functional titrimeter |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103089A (en) * | 2011-02-28 | 2011-06-22 | 南京财经大学 | Titration end point determination device for determining fatty acid value of grain |
| CN102253164A (en) * | 2011-04-26 | 2011-11-23 | 东北电力大学 | Water alkalinity on-line measuring device based on solution image technology and measuring method thereof |
| CN103293152A (en) * | 2013-06-25 | 2013-09-11 | 长沙理工大学 | A method and an apparatus for end point detection in titration analysis |
| CN103323454A (en) * | 2012-03-22 | 2013-09-25 | 万研仪器科技（上海）有限公司 | Color indicator automatic titration analyzer and application method thereof |
| CN103969256A (en) * | 2014-04-24 | 2014-08-06 | 华南理工大学 | Color-sensor-based device for detecting intensity of stoving |
| CN104964972A (en) * | 2015-06-30 | 2015-10-07 | 开平市中青环保技术服务有限公司 | Method and apparatus for determining titration end point and realizing automatic titration analysis by means of vision sensor |
| CN105424867A (en) * | 2015-11-15 | 2016-03-23 | 常州大学 | Direct-connecting double-translation sodium hydroxide calibration device in sulfur determinator |
| CN105651772A (en) * | 2016-02-19 | 2016-06-08 | 山西临汾市政工程集团股份有限公司 | Automatic color-differentiation titration method and device adopting same |
| CN105717111A (en) * | 2016-04-29 | 2016-06-29 | 中储粮成都粮食储藏科学研究所 | Automatic titration device capable of detecting change in colour of solution based on machine vision and detection method thereof |
| WO2017041151A1 (en) * | 2015-09-10 | 2017-03-16 | Manfredi José Felix | Digital titrator |
| CN106885872A (en) * | 2015-12-15 | 2017-06-23 | 青岛果核仪器科技有限公司 | A kind of smart electronicses acid alkaline titrimeter |
| CN106950333A (en) * | 2017-05-19 | 2017-07-14 | 京东方科技集团股份有限公司 | Cleaning fluid titration control system, device and method |
| CN109115941A (en) * | 2018-10-25 | 2019-01-01 | 王晓丽 | Full-automatic titrator and its control method |
| CN109781944A (en) * | 2019-01-21 | 2019-05-21 | 中华人民共和国同江海关 | A kind of intelligent chemical analysis system and method for fluid sample |
| CN110451664A (en) * | 2018-05-08 | 2019-11-15 | 丁初稷 | Automatic water quality adjusting system and method |
| CN112540145A (en) * | 2020-11-04 | 2021-03-23 | 江苏大学 | Automatic chromatic aberration titrator and measuring method thereof |
| CN113219125A (en) * | 2021-03-10 | 2021-08-06 | 安徽中医药高等专科学校 | Titration end point display |
-
2005
- 2005-11-25 CN CN 200520036267 patent/CN2835995Y/en not_active Expired - Fee Related
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103089B (en) * | 2011-02-28 | 2013-06-12 | 南京财经大学 | Titration end point determination device for determining fatty acid value of grain |
| CN102103089A (en) * | 2011-02-28 | 2011-06-22 | 南京财经大学 | Titration end point determination device for determining fatty acid value of grain |
| CN102253164B (en) * | 2011-04-26 | 2014-12-17 | 东北电力大学 | Water alkalinity on-line measuring device based on solution image technology and measuring method thereof |
| CN102253164A (en) * | 2011-04-26 | 2011-11-23 | 东北电力大学 | Water alkalinity on-line measuring device based on solution image technology and measuring method thereof |
| CN103323454A (en) * | 2012-03-22 | 2013-09-25 | 万研仪器科技（上海）有限公司 | Color indicator automatic titration analyzer and application method thereof |
| CN103293152A (en) * | 2013-06-25 | 2013-09-11 | 长沙理工大学 | A method and an apparatus for end point detection in titration analysis |
| CN103969256B (en) * | 2014-04-24 | 2016-06-22 | 华南理工大学 | A kind of device detecting intensity of sulfitation based on color sensor automatic Titration |
| CN103969256A (en) * | 2014-04-24 | 2014-08-06 | 华南理工大学 | Color-sensor-based device for detecting intensity of stoving |
| CN104964972A (en) * | 2015-06-30 | 2015-10-07 | 开平市中青环保技术服务有限公司 | Method and apparatus for determining titration end point and realizing automatic titration analysis by means of vision sensor |
| WO2017041151A1 (en) * | 2015-09-10 | 2017-03-16 | Manfredi José Felix | Digital titrator |
| CN105424867A (en) * | 2015-11-15 | 2016-03-23 | 常州大学 | Direct-connecting double-translation sodium hydroxide calibration device in sulfur determinator |
| CN106885872A (en) * | 2015-12-15 | 2017-06-23 | 青岛果核仪器科技有限公司 | A kind of smart electronicses acid alkaline titrimeter |
| CN105651772A (en) * | 2016-02-19 | 2016-06-08 | 山西临汾市政工程集团股份有限公司 | Automatic color-differentiation titration method and device adopting same |
| CN105717111A (en) * | 2016-04-29 | 2016-06-29 | 中储粮成都粮食储藏科学研究所 | Automatic titration device capable of detecting change in colour of solution based on machine vision and detection method thereof |
| CN106950333A (en) * | 2017-05-19 | 2017-07-14 | 京东方科技集团股份有限公司 | Cleaning fluid titration control system, device and method |
| CN106950333B (en) * | 2017-05-19 | 2019-06-21 | 京东方科技集团股份有限公司 | Cleaning solution titrates control system, device and method |
| CN110451664A (en) * | 2018-05-08 | 2019-11-15 | 丁初稷 | Automatic water quality adjusting system and method |
| CN109115941A (en) * | 2018-10-25 | 2019-01-01 | 王晓丽 | Full-automatic titrator and its control method |
| CN109115941B (en) * | 2018-10-25 | 2024-02-27 | 王晓丽 | Full-automatic titrator and control method thereof |
| CN109781944A (en) * | 2019-01-21 | 2019-05-21 | 中华人民共和国同江海关 | A kind of intelligent chemical analysis system and method for fluid sample |
| CN112540145A (en) * | 2020-11-04 | 2021-03-23 | 江苏大学 | Automatic chromatic aberration titrator and measuring method thereof |
| CN113219125A (en) * | 2021-03-10 | 2021-08-06 | 安徽中医药高等专科学校 | Titration end point display |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20061108 Termination date: 20131125 |