CN107844144A - Intelligent integrated chemistry experiment teaching aid - Google Patents
Intelligent integrated chemistry experiment teaching aid Download PDFInfo
- Publication number
- CN107844144A CN107844144A CN201711148616.3A CN201711148616A CN107844144A CN 107844144 A CN107844144 A CN 107844144A CN 201711148616 A CN201711148616 A CN 201711148616A CN 107844144 A CN107844144 A CN 107844144A
- Authority
- CN
- China
- Prior art keywords
- teaching aid
- intelligent integrated
- chemistry experiment
- experiment teaching
- drive circuit
- 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.)
- Pending
Links
- 238000002474 experimental method Methods 0.000 title claims abstract description 30
- 238000012360 testing method Methods 0.000 claims abstract description 17
- 230000001953 sensory effect Effects 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 21
- 238000009529 body temperature measurement Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000005619 thermoelectricity Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 11
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 9
- 239000000126 substance Substances 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/22—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element being a thermocouple
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/24—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for chemistry
Abstract
Intelligent integrated chemistry experiment teaching aid of the present invention, including controller and the sensory package being connected with the controller and executing agency；Wherein described executing agency includes：Drive circuit, the drive circuit are connected with the controller；Automatic swinging unit, the automatic swinging unit are connected by switch element with the drive circuit.Compared with prior art, the present invention has following advantage：1) present invention using digital technology, acousto-optic is electrical integrated and intellectualized technology, the accurate pH value for determining chemical reagent；2) present invention utilizes digital technology and automatic control technology, and reaction in test tube reagent is shaken up, heats simultaneously accurate temperature controlling；3) present invention improves existing chemical experiment mode and teaching environment, the danger of chemical experiment, the implementation more conducively imparted knowledge to students are reduced.
Description
Technical field
The present invention designs a kind of SCM Based intelligent Teaching Aid, belongs to field of intelligent control technology, is taught applied to chemistry
Learn and test, particularly a kind of intelligent integrated chemistry experiment teaching aid.
Background technology
2003, The Ministry of Education of the People's Republic of China ("MOE") promulgated《Senior middle school physics curriculum standard (experiment original text)》Middle proposition：" pay attention to
By information technology application to physics laboratory, accelerate the development and application of middle school physical experiment software, it is such as real by computer
When measurement, processing experimental data, analysis experimental result etc. ".
At present, modern experimental means have been applied in terms of physics teaching with experiment, and on chemistry teaching, still make
With traditional chemical experiment equipment such as alcolhol burner, rack for test tube, it is necessary to shake up reagent manually, pH value is substantially judged with PH test paper.No
Only experiment flow complex operation, there is a certain degree of danger, and the heating-up temperature of chemical reagent is uncontrollable.
The content of the invention
It is an object of the invention to provide a kind of control mode is simple and reliable, intelligence to the automatic heating of chemical reagent and temperature control
Integrated chemical experiment teaching aid.
In order to solve the above technical problems, intelligent integrated chemistry experiment teaching aid of the present invention, including controller and with the control
The sensory package of device connection processed and executing agency；Wherein described executing agency includes：Drive circuit, the drive circuit with it is described
Controller connects；Automatic swinging unit, the automatic swinging unit are connected by switch element with the drive circuit.
Preferably, the automatic swinging unit includes：Motor, the motor pass through the switch element and the driving electricity
Road connects；Rocking arm, the rocking arm are provided with the cavity of glove in the rocking arm, used by connecting bushing and the motor connection
With holding test tubes；Heating member, the heating member are arranged on the bottom of the cavity.
Preferably, heat carrier is provided between the test tube and the heating member.
Preferably, the heating member is heating film.
Preferably, the sensory package includes thermocouple and infrared temperature measurement device；Wherein described thermocouple is arranged on described lead
Hot internal, the infrared temperature measurement device is arranged on the rocking arm.
Preferably, the switch element is made up of mechanical switch and rectifying tube parallel connection.
Preferably, the mechanical switch is electric drive formula electromagnetic switch.
Preferably, the electric drive formula electromagnetic switch uses relay or A.C. contactor.
Preferably, the drive circuit is electronic drive circuit.
Preferably, the controller includes single-chip microcomputer and peripheral circuit.
Compared with prior art, the present invention has following advantage：
1) present invention using digital technology, acousto-optic is electrical integrated and intellectualized technology, the accurate pH value for determining chemical reagent；
2) present invention utilizes digital technology and automatic control technology, and reaction in test tube reagent is shaken up, heated and is accurately controlled
Temperature；
3) present invention improves existing chemical experiment mode and teaching environment, the danger of chemical experiment is reduced, it is more sharp
In the implementation of teaching.
Brief description of the drawings
By reading the detailed description made with reference to the following drawings to non-limiting example, further feature mesh of the invention
And advantage will become more apparent upon.
Fig. 1 is intelligent integrated chemistry experiment teaching aid schematic diagram of the present invention；
Fig. 2 is intelligent integrated chemistry experiment teaching aid control principle drawing one of the present invention；
Fig. 3 is intelligent integrated chemistry experiment teaching aid control principle drawing two of the present invention；
Fig. 4 is intelligent integrated chemistry experiment teaching aid automatic swinging cellular construction schematic diagram of the present invention.
In figure：
1- motor 2- rocking arm 3- test tubes
4- heating film 5- heat carrier 6- thermocouples
7- infrared temperature measurement device 8- mechanical switch 9- rectifying tubes
10- connecting bushings
Embodiment
The present invention is described in further detail below, and the explanation of the invention is not limited.Tie below
Accompanying drawing is closed to make further instructions the present invention.
As shown in Figure 1 to 4, intelligent integrated chemistry experiment teaching aid of the present invention is by system composition division, including sensory package
(data information acquisition system), controller (control and storage system) and three parts of executing agency.
Controller drives the forward and reverse operation of low-speed DC motor 1 to swing rocking arm according to RFID radio frequency commands or manual command
2, and rocking arm 2 is accurately positioned according to infrared sensor.Electric heating film 4, heat carrier 5 and temperature sensor form heating control
System processed, and alarm signal is sent in abnormal cases.
Sensory package (data information acquisition system) is mainly acquired to non-electrical signals such as pH value, pressure, temperature, is passed through
High input impedance operational amplifier conditioning output forms analog voltage signal, then forms digital quantity by a/d converter and be processed place
Reason.
The rocking arm 2 of automatic swinging unit is driven with DC low-speed motor 1 via connecting bushing 10, passes through two direct current relays
Device carries out forward and reverse driving, while the mode of adjustment PWM duty cycle can be taken to carry out speed control to motor, realizes test tube 3
Heating, temperature control, wave, pH value detection, pressure detection etc. function.
System is accurately positioned according to three infrared sensors and turned to controlled motor 1, is commutated again by stopping delay
The Flexible Control of operating is to mitigate the influence of transient state opposing torque.When rocking arm 2 reveals unexpected situation, infrared sensing is received
After the feedback signal of device, controller sends instruction stop, prevents rocking arm 2 is out of control from the inverted danger of test tube occurs.If infrared biography
Sensor breaks down, and system will wave the time according to maximum and be alarmed and be dealt with.
Thermocouple 6 is used for the heating-up temperature of reagent in test tubes 3, and heat carrier 5 is filled between heating film 4 and test tube 3,
Thermocouple 6 is placed in heat carrier 5 and presses close to test tube 3, and heat carrier 5 is used for uniform diffusion temperature, to realize the mesh of electrical heating test tube 3
, the internal layer of rocking arm 2 posts insulation heat proof material (not shown), the monitoring reagent real time temperature of infrared temperature measurement device 7.
During heating, power relay is connected first and starts heating circuit, the temperature of bottom heating film 4 is begun to ramp up, until threshold
Heater is closed after value+return difference, heating is restarted after threshold value-return difference is dropped to, test tube heating-up temperature is in control bound
Between fluctuate, mode is simple, can meet needed for chemistry experiment.
After the completion of heating and rocking action, data, PH electrodes and the pressure transducer such as measurable liquid pH value and pressure are pressed
Operated according to operating specification flow.The present invention can manually, and the mode such as RFID radio frequencies or communication forms input, to drive
Shake arm mechanism operation.
Interaction between control circuit, mechanical switch drive circuit and switch element, mechanical switch drive circuit and
Switch element forms executing agency.Control circuit is used to control executing agency.
Controller is compared sampled signal using single-chip microcomputer as core control element by the program of setting with the threshold value set
Compared with sampled signal then sends process signal when being not less than the threshold value of setting to mechanical switch drive circuit；Switch element is by machinery
Switch 8 and the composition in parallel of rectifying tube 9, electric drive formula electromagnetic switch known to the use of mechanical switch 8, can be relay or friendship
Flow contactor；Mechanical switch drive circuit use known to electronic drive circuit, for control machinery switch 8 closure or point
It is disconnected.
The voltage drop very little of the closure state of mechanical switch 8, therefore, the threshold value of setting is usually several millivolts to tens millivolts.
When system needs to put into electric capacity, control circuit receives the switching instruction of system, is sampled, obtained from switch element
Sampled signal is obtained, sampled signal is usually voltage signal.Control circuit is compared to sampled signal, the forward bias of rectifying tube 9
When then export process signal, the process signal can be voltage signal and/or current signal.Mechanical switch drive circuit receives
Process signal from control circuit, is converted to drive signal, and the drive signal is usually current signal.Switch element is from machinery
Switch driving circuit receives drive signal, and mechanical switch 8 closes.Mechanical switch drive circuit continues output drive signal, machinery
Switch 8 remains turned on.Turned on because rectifying tube is in forward bias, when mechanical switch 8 closes, voltage does not surpass between its contact
1.5V is crossed, electric arc will not be produced.
System need cut off electric capacity when, control circuit receive system switching instruction, control circuit to rectifying tube 9 two
Terminal voltage is sampled, and the sampled signal is the contact drop of mechanical switch 8, when rectifying tube 9 is presented forward bias then at output
Signal is managed, the process signal can be voltage signal and/or current signal.Mechanical switch drive circuit is received from control electricity
The process signal on road, disconnect drive signal, the disjunction of mechanical switch 8.Because rectifying tube is in forward bias, during 8 disjunction of mechanical switch,
Rectifying tube turns on, and voltage is no more than 1.5V between making the contact of mechanical switch 8, will not produce electric arc.
Electrical connection between mechanical switch 8 and rectifying tube 9 uses parallel relationship.Mechanical switch 8 can be relay or friendship
Flow contactor.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or change within the scope of the claims, this not shadow
Ring the substantive content of the present invention.In the case where not conflicting, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (10)
- A kind of 1. intelligent integrated chemistry experiment teaching aid, it is characterised in that the biography being connected including controller and with the controller Feel component and executing agency；WhereinThe executing agency includes：Drive circuit, the drive circuit are connected with the controller；Automatic swinging unit, the automatic swinging unit are connected by switch element with the drive circuit.
- 2. intelligent integrated chemistry experiment teaching aid according to claim 1, it is characterised in that the automatic swinging unit bag Include：Motor, the motor are connected by the switch element with the drive circuit；Rocking arm, the rocking arm pass through connecting bushing and the motor connection, the cavity provided with glove in the rocking arm, to put Put test tube；Heating member, the heating member are arranged on the bottom of the cavity.
- 3. intelligent integrated chemistry experiment teaching aid according to claim 2, it is characterised in that in the test tube and the heating Heat carrier is provided between part.
- 4. intelligent integrated chemistry experiment teaching aid according to claim 2, it is characterised in that the heating member is heating film.
- 5. intelligent integrated chemistry experiment teaching aid according to claim 2, it is characterised in that the sensory package includes thermoelectricity Idol and infrared temperature measurement device；WhereinThe thermocouple is arranged in the heat carrier, and the infrared temperature measurement device is arranged on the rocking arm.
- 6. intelligent integrated chemistry experiment teaching aid according to claim 1 or 2, it is characterised in that the switch element is by machine Tool, which switchs, and rectifying tube is in parallel is formed.
- 7. intelligent integrated chemistry experiment teaching aid according to claim 6, it is characterised in that the mechanical switch drives for electronics Dynamic formula electromagnetic switch.
- 8. intelligent integrated chemistry experiment teaching aid according to claim 7, it is characterised in that the electric drive formula electromagnetism is opened Pass uses relay or A.C. contactor.
- 9. intelligent integrated chemistry experiment teaching aid according to claim 1, it is characterised in that the drive circuit drives for electronics Dynamic circuit.
- 10. intelligent integrated chemistry experiment teaching aid according to claim 1, it is characterised in that the controller includes monolithic Machine and peripheral circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711148616.3A CN107844144A (en) | 2017-11-17 | 2017-11-17 | Intelligent integrated chemistry experiment teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711148616.3A CN107844144A (en) | 2017-11-17 | 2017-11-17 | Intelligent integrated chemistry experiment teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107844144A true CN107844144A (en) | 2018-03-27 |
Family
ID=61678896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711148616.3A Pending CN107844144A (en) | 2017-11-17 | 2017-11-17 | Intelligent integrated chemistry experiment teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107844144A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108549264A (en) * | 2018-05-04 | 2018-09-18 | 安徽三弟电子科技有限责任公司 | A kind of chemical test operation robot control system based on quantitative analysis |
| CN113506499A (en) * | 2021-07-08 | 2021-10-15 | 张明晓 | Chemical digital experiment system |
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|---|---|---|---|---|
| CN2382362Y (en) * | 1999-07-02 | 2000-06-14 | 王原仁 | Activating whole blood coagulation time detector |
| JP2005083944A (en) * | 2003-09-10 | 2005-03-31 | Tokai Hit:Kk | Humidifier for test tube |
| CN205042501U (en) * | 2015-10-14 | 2016-02-24 | 毕维华 | Intelligent chemical test tube |
| CN206139206U (en) * | 2016-10-10 | 2017-05-03 | 安徽理工大学 | Beaker for chemical experiments |
| CN206240507U (en) * | 2016-11-08 | 2017-06-13 | 康学萍 | A kind of medical test test tube |
| CN206519108U (en) * | 2016-12-02 | 2017-09-26 | 张卓玥 | One kind examination fixing device for tube |
| CN206549667U (en) * | 2017-03-17 | 2017-10-13 | 河北省健海生物芯片技术有限责任公司 | A kind of hybridization reaction device with test tube heater |
| CN207637023U (en) * | 2017-11-17 | 2018-07-20 | 宋瑞昕 | Intelligent integrated chemistry experiment teaching aid |
-
2017
- 2017-11-17 CN CN201711148616.3A patent/CN107844144A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2382362Y (en) * | 1999-07-02 | 2000-06-14 | 王原仁 | Activating whole blood coagulation time detector |
| JP2005083944A (en) * | 2003-09-10 | 2005-03-31 | Tokai Hit:Kk | Humidifier for test tube |
| CN205042501U (en) * | 2015-10-14 | 2016-02-24 | 毕维华 | Intelligent chemical test tube |
| CN206139206U (en) * | 2016-10-10 | 2017-05-03 | 安徽理工大学 | Beaker for chemical experiments |
| CN206240507U (en) * | 2016-11-08 | 2017-06-13 | 康学萍 | A kind of medical test test tube |
| CN206519108U (en) * | 2016-12-02 | 2017-09-26 | 张卓玥 | One kind examination fixing device for tube |
| CN206549667U (en) * | 2017-03-17 | 2017-10-13 | 河北省健海生物芯片技术有限责任公司 | A kind of hybridization reaction device with test tube heater |
| CN207637023U (en) * | 2017-11-17 | 2018-07-20 | 宋瑞昕 | Intelligent integrated chemistry experiment teaching aid |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108549264A (en) * | 2018-05-04 | 2018-09-18 | 安徽三弟电子科技有限责任公司 | A kind of chemical test operation robot control system based on quantitative analysis |
| CN113506499A (en) * | 2021-07-08 | 2021-10-15 | 张明晓 | Chemical digital experiment system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180327 |
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| RJ01 | Rejection of invention patent application after publication |