CN105738562A - Titrator applied to teaching and operating method thereof - Google Patents
Titrator applied to teaching and operating method thereof Download PDFInfo
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- CN105738562A CN105738562A CN201610260266.9A CN201610260266A CN105738562A CN 105738562 A CN105738562 A CN 105738562A CN 201610260266 A CN201610260266 A CN 201610260266A CN 105738562 A CN105738562 A CN 105738562A
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- titrator
- titration
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- teaching
- peristaltic pump
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
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Abstract
The invention relates to a titrator applied to teaching and an operating method thereof.The titrator applied to teaching comprises a main case, the main case is connected with a peristaltic pump for providing transfusion power, a cavity is formed in the main case, a control system for receiving instructions and controlling instruments to operate is arranged in the cavity, the upper end of the main case is provided with a display screen for displaying the operation process and the detection result, a detachable support with the height adjustable is arranged at the side end of the main case, the output end of the peristaltic pump is connected with a detachable pump pipe, the upper end of the pump pipe is connected to the support, a titration curve is arranged in the control system, and the display screen and the peristaltic pump are in electric connection with the control system.According to the titrator applied to teaching and the operating method thereof, the titration curve is arranged in the control system and displayed in the display screen in real time in the titration process, so that in the teaching process, the titration process is displayed more vividly, the support is detachable, the height of the support can be adjusted within a certain range, and the whole titrator is light and smart, simple in structural design, firm, durable and low in cost.
Description
Technical field
The present invention relates to teaching aid, more specifically refer to the titrator being applied to teaching and this be applied to the operational approach of titrator of teaching.
Background technology
Titrator is except can carry out potentiometric titration, including acid base titration, and redox titration, sedimetry, complexometry and outside nonaquepous tration, it is possible to carry out permanent pH and measure.Photometric titration, polarometric titration, volumetric method Ka Shi moisture titration and surfactant titration can be carried out by option, wait titration assay method.During the online use of autotitrator and full-automatic Multi-example transducer, can not only efficiently realize the automatic measurement of a large amount of sample, moreover it is possible to improve the repeatability analyzed, reliability, simple to operate, time saving and energy saving.Suitable in quality control, check, analyze, research, each side such as exploitation.
Traditional teaching titration appratus is the device that burette adds iron stand, has a disadvantage in that: need manual cleaning；Glass material is fragile；In field research process, student is mostly first contacts, it is easy to produces teaching accident or damages teaching equipment.Also there is full-automatic titrator at present on the market, but instrument volume is big, expensive, it is not easy to research institutions and configures in a large number, more not readily portable, it is not easy to field experimentation teaching；Pipeline is many, cleans difficulty；It addition, also having some instruments is adopt potentiometric titration, it is necessary to being equipped with electrode, instrument maintenance difficulty is big, is not suitable for teaching.Seeing in the aspect of teaching, pass student is for this large automatic, and safeguards and be worth significantly high instrument simultaneously, it does not have reach the purpose of teaching, otherwise, the teaching originally integrated theory with practice becomes study instrument and uses.
Adopting " titration " " teaching " as key word, search out 43 sections of Patents, wherein, Chinese Patent Application No. 201420783759.7 discloses a kind of novel education experiment burette, including body and titration tube head；Described body upper end is provided with funnel-shaped upper end mouth, and the tube wall of body is provided with graduation mark, and body lower end is provided with outer grinding port, outer grinding port is provided with the first passage, the junction of body bottom and outer grinding port upper end is provided with prolongs limit groove, prolongs limit groove and is provided with slide rail and bayonet socket, connects bias and let slip a remark bottom ground；Described titration tube head includes cannula portion and the taper drip nozzle portion that the ground with body matches, cannula portion top is provided with interior ground, bottom is provided with leakage core, described cannula portion is provided with and the second passage of the first passage opposite position, cannula portion outer wall is provided with handle, along the card slide block being provided with the bayonet socket with body and slide rail matches in cannula portion.Chinese Patent Application No.: 201520132417.3 disclose a kind of burette, by syringe, graded tube with bead, graded tube without bead forms, syringe is made up of piston rod and syringe piston, graded tube without bead is tightly connected by connecting tube with the graded tube with bead, the position being connected with the graded tube with bead in connecting tube is provided without bead graded tube valve, position with being connected with connecting tube on the graded tube of bead arranges the graded tube valve with bead, bead is positioned at the tune liquid upper piston area of the graded tube with bead, outer wall without the graded tube of bead is cased with band vertical view steel wire, look squarely steel wire and look up the steel wire ring of steel wire, steel wire ring slides up and down along graded tube, and there is the screw rod of fixation.
It is no matter traditional titration appratus, or full automatic large-scale titration appratus, it is impossible to reach the purpose of guiding student theory of learning knowledge, more inconvenient is combined with teacher's theory and practice in field research is tested.It is therefore desirable to design a kind of titrator being applied to teaching, it is achieved theory and practice is combined and simple in construction.
Summary of the invention
It is an object of the invention to overcome the defect of prior art, it is provided that be applied to titrator and the operational approach thereof of teaching.
For achieving the above object, the present invention is by the following technical solutions: be applied to the titrator of teaching, including casing, described casing is connected to the peristaltic pump providing transfusion power, it is provided with cavity volume in described casing, the control system of the operation receiving instruction and control instrument it is provided with in described cavity volume, it is provided with titration curve in described control system, the upper end of described casing is provided with the display screen of display operating process and testing result, the side of described casing is provided with height adjustable and removable support, described wriggling delivery side of pump is connected to dismountable pump line, the upper end of described pump line connects on the bracket, described display screen and described peristaltic pump are electrically connected with described control system respectively.
Its further technical scheme is: described support includes vertical bar and horizon bar, the lower end of described vertical bar is connected on the housing by fixing screw, the upper end of described vertical bar is connected with the inner ends thereof of described horizon bar, the outer end of described horizon bar is vacant, and described pump line is connected to the outer end of described horizon bar.
Its further technical scheme is: the lower end of described vertical bar extends down, is plugged in the cavity volume of described casing, and the lower end of described vertical bar is connected to hasp, and described hasp is connected with described fixing screw.
Its further technical scheme is: the outer end of described horizon bar is provided with titration hole, and the lower end in described titration hole is connected to the projection vertically arranged down, and the outer end of described pump line, through described titration hole, is embedded in described projection.
Its further technical scheme is: described in be applied to the titrator of teaching and also include dismountable temperature probe, the inner of described temperature probe connects on the housing, and outer end is vacant, and described temperature probe is electrically connected with described control system.
Its further technical scheme is: described casing is provided with the guidance panel providing guest operation interface, and described guidance panel is provided with several buttons.
Its further technical scheme is: described display screen is in tilted layout in the upper end of described casing forward along top-down direction.
Its further technical scheme is: described control system includes providing the power supply of electric energy, governor circuit, display control circuit, peristaltic pump control circuit and storage circuit；Described titration curve it is provided with in described governor circuit；Described power supply, described display control circuit, described peristaltic pump control circuit and described storage circuit are electrically connected with described governor circuit respectively, described display screen is electrically connected with described display control circuit, described peristaltic pump is electrically connected with described peristaltic pump control circuit, and described temperature probe is electrically connected with described governor circuit.
Its further technical scheme is: described peristaltic pump control circuit includes circuit board, inputs the supply voltage VBAT of driving voltage, provides the digital voltage DVDD controlling voltage, inputs the control signal STM_XX of control signal and for controlling the motor interface J4 of rate of titration, motor interface J4 is connected with peristaltic pump, and supply voltage VBAT, digital voltage DVDD, control signal STM_XX and motor interface J4 are electrically connected with described circuit board respectively.
Present invention also offers the operational approach of the titrator being applied to teaching, specifically comprise the following steps that
Step 1. is started shooting, display reminding information on display screen, clicks after determining, pump line safeguarded voluntarily by titrator；
Step 2. is calibrated, and clicks the menu on display screen, after clicking calibration button, carries out the calibration of titrator；
Step 3. carries out titration experiments, first clicks and arranges menu on display screen, sets titration parameters according to prompting, form built-in titration curve, and in the process of titration, display screen shows titration curve in real time according to titration；
After step 4. titration experiments completes, that clicks display screen completes button.
The present invention compared with prior art provides the benefit that: the titrator being applied to teaching of the present invention, by arranging titration curve in control system, and show in real time from display screen in titration process, more vivid in titration is imparted knowledge to students showing titration process, support can be dismantled, it is also possible to regulates height within the specific limits, whole instrument is light and handy, structural design is simple, and durable, cost is low.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Accompanying drawing explanation
The perspective view of the titrator being applied to teaching that Fig. 1 provides for the specific embodiment of the invention；
The titration curve schematic diagram of the titrator being applied to teaching that Fig. 2 provides for the specific embodiment of the invention；
The control principle block diagram of the titrator being applied to teaching that Fig. 3 provides for the specific embodiment of the invention；
The circuit block diagram of the control system that Fig. 4 provides for the specific embodiment of the invention；
The circuit block diagram of the peristaltic pump control circuit that Fig. 5 provides for the specific embodiment of the invention；
The circuit block diagram of the power supply that Fig. 6 provides for the specific embodiment of the invention；
The circuit block diagram of the governor circuit that Fig. 7 provides for the specific embodiment of the invention；
The circuit block diagram of the storage circuit that Fig. 8 provides for the specific embodiment of the invention；
The circuit block diagram of the display control circuit that Fig. 9 provides for the specific embodiment of the invention.
Accompanying drawing labelling
10 casing 11 display screens
20 vertical bar 30 horizon bars
40 titration hole 50 projections
60 temperature probes 70 fix screw
80 guidance panel 90 buttons
91 peristaltic pump 92 governor circuits
93 power supply 94 peristaltic pump control circuits
95 display control circuits 96 store circuit
Detailed description of the invention
In order to more fully understand the technology contents of the present invention, below in conjunction with specific embodiment technical scheme it is further described and illustrates, but being not limited to this.
Specific embodiment as shown in Fig. 1～5, what the present embodiment provided is applied to the titrator of teaching, it is possible to be used in the teaching process of titration experiments, it is achieved teaching method theory and practice combined.
Being applied to the titrator of teaching, including casing 10, this casing 10 can be any shape, and such as square or circular etc., concrete shape is determined on a case-by-case basis.Casing 10 is connected to the peristaltic pump 91 providing transfusion power, it is provided with cavity volume in casing 10, being provided with the control system of the operation receiving instruction and control instrument in cavity volume, the upper end of casing 10 is provided with the display screen 11 of display operating process and testing result, and, the side of casing 10 is provided with height adjustable and removable support, the outfan of peristaltic pump 91 is connected to dismountable pump line, and the upper end of this pump line is connected on support, regulates the height of support, i.e. adjustable titration height, convenient operation.
Additionally, titration curve (not marking in figure) it is provided with in control system, display screen 11 and peristaltic pump 91 are electrically connected with control system respectively, so, built-in titration curve can make that instrument is more vivid in teaching process shows titration process, reduces teacher in theoretical and in practical teaching workload.
The above-mentioned titrator being applied to teaching, by arranging titration curve in control system, and show in real time from display screen 11 in titration process, more vivid in titration is imparted knowledge to students showing titration process, support can be dismantled, it is also possible to regulates height within the specific limits, whole instrument is light and handy, structural design is simple, and durable, cost is low.
Above-mentioned support includes vertical bar 20 and horizon bar 30, the lower end of vertical bar 20 is connected in casing 10 by fixing screw 70, and the upper end of vertical bar 20 is connected with the inner ends thereof of horizon bar 30, so, horizon bar 30 can its inner be rotating fulcrum, rotates the direction adjusting titration；The outer end of horizon bar 30 is vacant, and pump line is connected to the outer end of horizon bar 30.
The lower end of vertical bar 20 extends down, is plugged in casing 10 cavity volume, and the lower end of vertical bar 20 is connected to hasp, hasp is connected with fixing screw 70, thus realizing the connection of vertical bar 20 and casing 10, it is necessary to when regulating the height of vertical bar 20, it is only necessary to turn on fixing screw 70, move vertical bar 20 upward or down, in this process, hasp is motionless, after being adjusted to suitable location, be locked screw 70, is fixed by vertical bar 20.
The outer end of horizon bar 30 is provided with titration hole 40, and the lower end in titration hole 40 is connected to the projection 50 vertically arranged down, and the outer end of pump line, through titration hole 40, is embedded in projection 50；As such, it is possible to reach effect fixing for pump line, and, the vertically layout of projection 50 makes the liquid also vertically titration down that pump line exports.
In the present embodiment, the above-mentioned titrator being applied to teaching also includes dismountable temperature probe 60, the inner of temperature probe 60 is connected in casing 10, outer end is vacant, temperature probe 60 is electrically connected with controlling system, temperature probe 60 identifies current liquid temperature in a calibration process automatically, feeds back to panel, improves calibration accuracy.When temperature probe 60 need not be used, it is possible to after being pulled down, it is manually entered temperature.
Casing 10 be provided with provide guest operation interface guidance panel 80, this guidance panel 80 is provided with several buttons 90 so that whole titrator has input function, can not jointing temp pop one's head in 60 time be manually entered temperature, easy to operate.
In the present embodiment, realizing data for the ease of academics and students's viewing, display screen 11 is in tilted layout in the upper end of casing 10 forward along top-down direction.
Further, with reference to Fig. 4 and Fig. 5, above-mentioned control system includes providing the power supply 93 of electric energy, governor circuit 92, display control circuit 95, peristaltic pump control circuit 94 and storage circuit 96；Wherein, governor circuit 92 is the main control part of whole control system, for receive and send various instruction control whole system operation, and in be provided with above-mentioned titration curve；Display control circuit 95 is for receiving the instruction of governor circuit 92, and controls display screen 11 and show corresponding information；Peristaltic pump control circuit 94 is for receiving the instruction of governor circuit 92, and controls the transfusion of peristaltic pump 91；Storage circuit 96 is by the storage of governor circuit 92 control realization data and reading so that whole titrator has data storage function, can store 2,000 groups of data, including numbering, volume, time, stoichiometric point, key point；Power supply 93, display control circuit 95, peristaltic pump control circuit 94 and storage circuit 96 are electrically connected with governor circuit 92 respectively, display screen 11 and described display control circuit 95 are electrically connected, peristaltic pump 91 and peristaltic pump control circuit 94 are electrically connected, and temperature probe 60 and governor circuit 92 are electrically connected.
Further, peristaltic pump control circuit 94 includes circuit board, inputs the supply voltage VBAT of driving voltage, provides the digital voltage DVDD controlling voltage, inputs the control signal STM_XX of control signal and for controlling the motor interface J4 of rate of titration, supply voltage VBAT, digital voltage DVDD, control signal STM_XX and motor interface J4 are electrically connected with circuit board respectively, and STM_XX is for controlling the parameters such as the speed of output, direction.R14, R19 together decide on the electric current of output, have both driven power, the external peristaltic pump 91 of J4, control rate of titration.
After J6 inputs electric energy, after over commutation and Filtering Processing, a part exports digital power through DVDD, used by supply governor circuit 92, display control circuit 95 and storage circuit 96, being connected with the DVDD on governor circuit 92, display control circuit 95 and storage circuit 96 respectively, another part exports to used by peristaltic pump control circuit 94 through VBAT；STM on governor circuit 92 is partly as controlling output, for being connected with peristaltic pump control circuit 94, controls peristaltic pump chip；J7 connects temperature probe, inputs as temperature, and IOB is the control output end of deictic function, and SPI, partly as bus, is connected with storage circuit 96, it is achieved the storage of data controls；The S portion of governor circuit 92 is push button signalling, and the external world can pass through key mode provides signal, Q5, Q6 to be used for controlling display lamp to governor circuit 92, and additionally LCM is mainly display screen and provides control signal；And show that control circuit 95 also includes controlling the light on and off of audion；STM in peristaltic pump control circuit is mainly the control signal of the internal sequential of motor of peristaltic pump, direction and switch, this control signal exports after peristaltic pump chip, control the running of the internal motor of peristaltic pump, thus reaching to control multiple parameters such as titration speed, it is achieved the adjustability of titration.
In the present embodiment, the above-mentioned square-shaped layout of casing 10, and the corner angle of casing 10 are, and arc-shaped is arranged, namely the corner angle of casing 10 are through chamfered, owing to square instrument user is easily damaged scratch, corner angle chamfering, it is not easy to scratch is damaged user, display hommization is protruding, and the material of casing 10 is metal；Metal material shell, instrument is durable.
In other embodiments, above-mentioned casing 10 can be polygon-shaped layout, it is not limited to the square shape that the present embodiment provides is arranged.
In other embodiments, the material of above-mentioned casing 10 can be plastics etc., it is not limited to the metal material that the present embodiment provides.
It is provided with rotor in above-mentioned peristaltic pump 91, in described rotor, is provided with two rollers；Being compared to the peristaltic pump 91 of four rolling, the present embodiment is by reducing the roller of peristaltic pump 91 rotor, and the extruding of pair of rollers pump line is less, solves the problem producing bubble in infusion process.
The operational approach of this titrator being applied to teaching is specific as follows:
Step 1. is started shooting, display reminding information on display screen 11, clicks after determining, pump line safeguarded voluntarily by titrator；
Step 2. is calibrated, and clicks the menu on display screen 11, after clicking calibration button, carries out the calibration of titrator；
Step 3. carries out titration experiments；
After step 4. titration experiments completes, that clicks display screen 11 completes button.
Specifically, above-mentioned step 3, first click and display screen 11 arranges menu, set titration parameters according to prompting, form built-in titration curve, in the process of titration, display screen 11 shows titration curve in real time according to titration.
Further, titration parameters includes the parameters such as rate of titration, titration direction, titration color, titration volumes.
The above-mentioned technology contents only further illustrating the present invention with embodiment, in order to reader is easier to understand, but do not represent embodiments of the present invention and be only limitted to this, any technology done according to the present invention extends or recreation, all by the protection of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (10)
1. it is applied to the titrator of teaching, it is characterized in that, including casing, described casing is connected to the peristaltic pump providing transfusion power, it is provided with cavity volume in described casing, the control system of the operation receiving instruction and control instrument it is provided with in described cavity volume, it is provided with titration curve in described control system, the upper end of described casing is provided with the display screen of display operating process and testing result, the side of described casing is provided with height adjustable and removable support, described wriggling delivery side of pump is connected to dismountable pump line, the upper end of described pump line connects on the bracket, described display screen and described peristaltic pump are electrically connected with described control system respectively.
2. the titrator being applied to teaching according to claim 1, it is characterized in that, described support includes vertical bar and horizon bar, the lower end of described vertical bar is connected on the housing by fixing screw, the upper end of described vertical bar is connected with the inner ends thereof of described horizon bar, the outer end of described horizon bar is vacant, and described pump line is connected to the outer end of described horizon bar.
3. the titrator being applied to teaching according to claim 2, it is characterised in that the lower end of described vertical bar extends down, is plugged in the cavity volume of described casing, and the lower end of described vertical bar is connected to hasp, and described hasp is connected with described fixing screw.
4. the titrator being applied to teaching according to claim 3, it is characterized in that, the outer end of described horizon bar is provided with titration hole, and the lower end in described titration hole is connected to the projection vertically arranged down, the outer end of described pump line, through described titration hole, is embedded in described projection.
5. the titrator being applied to teaching according to any one of Claims 1-4, it is characterized in that, the described titrator being applied to teaching also includes dismountable temperature probe, the inner of described temperature probe connects on the housing, outer end is vacant, and described temperature probe is electrically connected with described control system.
6. the titrator being applied to teaching according to any one of Claims 1-4, it is characterised in that described casing is provided with the guidance panel providing guest operation interface, and described guidance panel is provided with several buttons.
7. the titrator being applied to teaching according to any one of Claims 1-4, it is characterised in that described display screen is in tilted layout in the upper end of described casing forward along top-down direction.
8. the titrator being applied to teaching according to any one of Claims 1-4, it is characterised in that described control system includes providing the power supply of electric energy, governor circuit, display control circuit, peristaltic pump control circuit and storage circuit；Described titration curve it is provided with in described governor circuit；Described power supply, described display control circuit, described peristaltic pump control circuit and described storage circuit are electrically connected with described governor circuit respectively, described display screen is electrically connected with described display control circuit, described peristaltic pump is electrically connected with described peristaltic pump control circuit, and described temperature probe is electrically connected with described governor circuit.
9. the titrator being applied to teaching according to claim 8, it is characterized in that, described peristaltic pump control circuit includes circuit board, inputs the supply voltage VBAT of driving voltage, provides the digital voltage DVDD controlling voltage, inputs the control signal STM_XX of control signal and for controlling the motor interface J4 of rate of titration, motor interface J4 is connected with peristaltic pump, and supply voltage VBAT, digital voltage DVDD, control signal STM_XX and motor interface J4 are electrically connected with described circuit board respectively.
10. the operational approach of the titrator being applied to teaching according to any one of claim 1 to 9, it is characterised in that specifically comprise the following steps that
Step 1. is started shooting, display reminding information on display screen, clicks after determining, pump line safeguarded voluntarily by titrator；
Step 2. is calibrated, and clicks the menu on display screen, after clicking calibration button, carries out the calibration of titrator；
Step 3. carries out titration experiments, first clicks and arranges menu on display screen, sets titration parameters according to prompting, form built-in titration curve, and in the process of titration, display screen shows titration curve in real time according to titration；
After step 4. titration experiments completes, that clicks display screen completes button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610260266.9A CN105738562A (en) | 2016-04-25 | 2016-04-25 | Titrator applied to teaching and operating method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610260266.9A CN105738562A (en) | 2016-04-25 | 2016-04-25 | Titrator applied to teaching and operating method thereof |
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| Publication Number | Publication Date |
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| CN105738562A true CN105738562A (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610260266.9A Pending CN105738562A (en) | 2016-04-25 | 2016-04-25 | Titrator applied to teaching and operating method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104334A (en) * | 1994-04-29 | 1995-06-28 | 清华大学 | Automatic potentiometric titrimeter |
| CN1448712A (en) * | 2002-03-29 | 2003-10-15 | 中国石油化工股份有限公司 | A potentiometric titration instrument |
| JP2010054317A (en) * | 2008-08-28 | 2010-03-11 | Hiranuma Sangyo Kk | Automatic titrator |
| JP5045333B2 (en) * | 2007-09-21 | 2012-10-10 | 東亜ディーケーケー株式会社 | Titration device |
| CN203720158U (en) * | 2013-12-10 | 2014-07-16 | 清时捷科技（香港）有限公司 | Titration apparatus |
| CN205786524U (en) * | 2016-04-25 | 2016-12-07 | 深圳市清时捷科技有限公司 | It is applied to the titrator of teaching |
-
2016
- 2016-04-25 CN CN201610260266.9A patent/CN105738562A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104334A (en) * | 1994-04-29 | 1995-06-28 | 清华大学 | Automatic potentiometric titrimeter |
| CN1448712A (en) * | 2002-03-29 | 2003-10-15 | 中国石油化工股份有限公司 | A potentiometric titration instrument |
| JP5045333B2 (en) * | 2007-09-21 | 2012-10-10 | 東亜ディーケーケー株式会社 | Titration device |
| JP2010054317A (en) * | 2008-08-28 | 2010-03-11 | Hiranuma Sangyo Kk | Automatic titrator |
| CN203720158U (en) * | 2013-12-10 | 2014-07-16 | 清时捷科技（香港）有限公司 | Titration apparatus |
| CN205786524U (en) * | 2016-04-25 | 2016-12-07 | 深圳市清时捷科技有限公司 | It is applied to the titrator of teaching |
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