CN104882049A - Experimental syringe for exploring three gas laws based on DIS - Google Patents
Experimental syringe for exploring three gas laws based on DIS Download PDFInfo
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- CN104882049A CN104882049A CN201510360935.5A CN201510360935A CN104882049A CN 104882049 A CN104882049 A CN 104882049A CN 201510360935 A CN201510360935 A CN 201510360935A CN 104882049 A CN104882049 A CN 104882049A
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Abstract
In order to more conveniently finish exploring three gas laws by means of a digital sensor and a computer, improvement is performed on an original syringe which can be only used for exploring an isothermal change. An experimental syringe for exploring three gas laws based on DIS has the characteristics that: (1) the temperature of gas enclosed in a piston can be displayed in a pressure measuring process; (2) a constant volume is realized; and (3) a constant pressure is realized. The experimental syringe for exploring the three gas laws based on DIS is formed by a syringe body provided with scaled lines and is characterized in that a thermosensitive element is arranged at the inner side of the bottom part of a piston barrel of the syringe, and a gas pressure transducer interface and a corresponding temperature sensor circuit interface used for connecting the thermosensitive element with a temperature sensor circuit are arranged at the outer side of the bottom part of the piston barrel of the syringe; a piston barrel sleeve which is fixedly connected with the piston barrel in a concentric and coaxial manner is arranged outside the piston barrel, and an enclosed cavity is formed between the piston barrel sleeve and the piston barrel; a piston fixing sleeve is sleeved on a piston rod; and a piston handle is provided with a buckle ring.
Description
Technical field
The experiment syringe probing into gas three law based on DIS belongs to Physical Experiment clothing arts.
Technical background
Present educational reforms advocates Inquiry Learning, improves the scientific literacy of school in Inquiry Learning.In Physics Learning, Experimental Research is a kind of major way of Inquiry Learning, will probe into gas three law when high school physics takes as an elective course the study of 3-3 gas.The equipment that current experiment room provides mainly contains two classes, and a class is old equipment, namely not by with multimedia experiment equipment, two is new equipment, is along with IT application in education sector, technicalization and the experiment equipment based on various kinds of sensors produced.New equipment has convenient, fast and accurate feature.But do in 3-3 gas experiment process the author, when using new equipment to carry out the Experimental Research of gas three law, find that traditional disposable syringe and air pressure sensor just combine by inventory to be only used for probing into ripple horse law (i.e. the isothermal change of gas), the creationary performance of the person of teaching then is needed for Charles's law (constant volume change of gas) and lid-Lussac law (the equipressure change of gas), test complex operation, probe at limited time in classroom Students ' and get little, after the author's thinking, existing supporting syringe is improved, DIS can be coordinated just can to probe into the experiment of gas three law easily with syringe.
This experiment syringe probing into gas three law based on DIS to be made to have following features to realize above-mentioned improvement: (1) wants to show the temperature of closed gas in piston when pressure measurement is strong; (2) can realize constant volume, namely wanting can fixed piston on demand; (3) constant voltage can be realized.In order to make the described experiment syringe probing into gas three law based on DIS have above three functions, adopt following technical scheme.
Summary of the invention
The experiment syringe probing into gas three law based on DIS is formed by there being the syringe body of scale mark, it is characterized in that: piston cylinder (9) bottom inside of described syringe is provided with thermal sensing element (3); Piston cylinder (9) bottom outside of described syringe is provided with the temperature sensor circuit interface (2) of the correspondence that air pressure sensor interface (1) is connected with by thermal sensing element (3) synthermal sensor circuit; Be provided with coaxial the be connected piston jacket casing (11) that arrange concentric on piston cylinder (9) outside described piston cylinder (9), between described piston jacket casing (11) and described piston cylinder (9), constitute another closed cavity independent of piston cavity (13); The upper cover of piston rod (5) of described syringe has piston fixed cover (6); Described piston handle (7) is provided with clasp (8).
Described piston jacket casing (11) is upper is also provided with water filling port (10) and water filling port (12) near two ends; Described water filling port (10) and water filling port (12) are hollow circuit cylinder; The closed cavity that described hollow circuit cylinder is formed with described piston jacket casing (11) and piston cylinder (9) communicates; Described hollow circuit cylinder is all furnished with rubber packing cover.
Described piston rod (5) is preferably right cylinder, and described right cylinder is provided with screw thread.
The tube port position of described piston cylinder (9) is provided with screw thread.
Described clasp (8) is located at the center of described piston handle (7).
Described piston fixed cover (6) is made up of a piston cover (14) matched with described piston cylinder (9) and piston rod positioning sleeve (15); Described piston cover (14) and described piston rod positioning sleeve (15) are concentric coaxially arranges formation boss; Described piston rod positioning sleeve (15) is a cylinder; The inside diameter of described cylinder equals the diameter of described piston rod (5); The internal side wall of described cylinder is provided with the screw thread matched with screw thread on described piston rod (5); Described piston cover (14) internal side wall is provided with the screw thread matched with the nozzle screw thread of described piston cylinder (9);
The top of described piston cover (14) is provided with bleeder vent; The cavity conducting that described bleeder vent and described piston (4), piston cylinder (9), piston rod (5), piston fixed cover (6) are formed; The outside of described bleeder vent communicates with air.
On described piston rod positioning sleeve (15), be provided with a groove along cylindrical circumference.
The top center of described piston cover (14) is provided with a circular hole, and described circular hole is stuck in the groove on described piston rod positioning sleeve (15).
Accompanying drawing explanation
Fig. 1: the structural drawing probing into the experiment syringe of gas three law based on DIS.
Fig. 2: the amplification assumption diagram of piston locating sleeve (6).
Component names corresponding in Reference numeral: 1-air pressure sensor interface, 2-temperature sensor circuit interface, 3-thermal sensing element, 4-piston, 5-piston rod, 6-piston fixed cover, 7-piston handle, 8-clasp, 9-piston cylinder, 10-water filling port, 11-piston jacket casing, 12-water filling port, 13-piston cavity, 14-piston cover, 15-piston rod positioning sleeve.
Embodiment
The experiment syringe probing into gas three law based on DIS is formed by there being the syringe body of scale mark, it is characterized in that: piston cylinder 9 bottom inside of described syringe is provided with thermal sensing element 3; Piston cylinder 9 bottom outside of described syringe is provided with the temperature sensor circuit interface 2 of the correspondence that air pressure sensor interface 1 is connected with by synthermal for thermal sensing element 3 sensor circuit; Be provided with coaxial the be connected piston jacket casing 11 that arrange concentric on piston cylinder 9 outside described piston cylinder 9, between described piston jacket casing 11 and described piston cylinder 9, constitute another closed cavity independent of piston cavity 13; On the piston rod 5 of described syringe, cover has piston fixed cover 6; Described piston handle 7 is provided with clasp 8.
Described piston jacket casing 11 is also provided with water filling port 10 and water filling port 12 near two ends; Described water filling port 10 and water filling port 12 are hollow circuit cylinder; The closed cavity that described hollow circuit cylinder is formed with described piston jacket casing 11 and piston cylinder 9 communicates; Described hollow circuit cylinder is all furnished with rubber packing cover.
Described piston rod 5 is preferably right cylinder, and described right cylinder is provided with screw thread.
The tube port position of described piston cylinder 9 is provided with screw thread.
Described clasp 8 is located at the center of described piston handle 7.
Described piston fixed cover 6 is made up of a piston cover 14 matched with described piston cylinder 9 and piston rod positioning sleeve 15; Described piston cover 14 and described piston rod positioning sleeve 15 are concentric coaxially arranges formation boss; Described piston rod positioning sleeve 15 is a cylinder; The inside diameter of described cylinder equals the diameter of described piston rod 5; The internal side wall of described cylinder is provided with the screw thread matched with screw thread on described piston rod 5; Described piston cover 14 internal side wall is provided with the screw thread matched with the nozzle screw thread of described piston cylinder 9;
The top of described piston cover 14 is provided with bleeder vent; The cavity conducting that described bleeder vent and described piston 4, piston cylinder 9, piston rod 5, piston fixed cover 6 are formed; The outside of described bleeder vent communicates with air.
On described piston rod positioning sleeve 15, be provided with a groove along cylindrical circumference.
The top center of described piston cover 14 is provided with a circular hole, and described circular hole is stuck in the groove on described piston rod positioning sleeve 15.
Probe into ripple horse law (i.e. the isothermal change of gas): the experiment probing into gas three law based on DIS be connected with digital exploration experimental data collector with air pressure sensor interface 1 data line with the temperature sensor circuit interface 2 of syringe, data acquisition unit is connected with computer, computer is provided with digital exploration experiment system, adopts common software.Piston fixed cover 6 and piston cylinder 9 is allowed to depart from, slow mobile piston bar 5, the described scale probing into the experiment syringe of gas three law based on DIS reads corresponding volume, corresponding gas pressure intensity is read in the digital exploration system of computer, reading multi-group data like this, can obtain in temperature one timing with Excel process corresponding data, the relation of pressure and volume.Also piston fixed cover 6 and piston cylinder 9 can be allowed to be socketed, then rotating piston locating sleeve 15, because piston locating sleeve 15 and piston rod 5 thread contact, can make described piston rod 5 that slow movement occurs, so slow movement can be seen as isothermal change procedure.
If P-V curve difference under probing into twice different temperature, then inject the water of different temperatures in the closed cavity that can be formed to described piston jacket casing 11 and piston cylinder 9 by two water filling ports.So just can obtain, the P-V curve of isothermal change under different temperatures.
Probe into Charles's law (constant volume change of gas): piston 4 is moved to certain position, then piston fixed cover 6 is tightened on described piston cylinder 9, achieves constant volume like this.Then probe into based on DIS the water injecting different temperatures in the described piston jacket casing 11 of the experiment syringe of gas three law and the closed cavity of piston cylinder 9 formation to described, from digital sensor, record temperature and the pressure of corresponding sealing gas.Finally the data Excel obtained is drawn.Can judge when the constancy of volume, the relation of pressure and temperature.
Probe into the lid-Lussac law equipressure of the gas (change): be vertically inverted by the described experiment syringe probing into gas three law based on DIS and be fixed on iron stand, piston fixed cover 6 and piston cylinder 9 is allowed to depart from, the hook code of certain mass is hung in described clasp 8, then probe into based on DIS the water injecting different temperatures in the described piston jacket casing 11 of the experiment syringe of gas three law and the closed cavity of piston cylinder 9 formation to described, from digital sensor, record the temperature of corresponding sealing gas, read the volume of closed gas from scale value.Finally the data Excel obtained is drawn, can judge when pressure is constant, the relation of volume and temperature.
Claims (9)
1. the experiment syringe probing into gas three law based on DIS is formed by there being the syringe body of scale mark, it is characterized in that: piston cylinder (9) bottom inside of described syringe is provided with thermal sensing element (3); Piston cylinder (9) bottom outside of described syringe is provided with the temperature sensor circuit interface (2) of the correspondence that air pressure sensor interface (1) is connected with by thermal sensing element (3) synthermal sensor circuit; Be provided with coaxial the be connected piston jacket casing (11) that arrange concentric on piston cylinder (9) outside described piston cylinder (9), between described piston jacket casing (11) and described piston cylinder (9), constitute another closed cavity independent of piston cavity (13); The upper cover of piston rod (5) of described syringe has piston fixed cover (6); Described piston handle (7) is provided with clasp (8).
2. the experiment syringe probing into gas three law based on DIS according to claim 1, is characterized in that: described piston jacket casing (11) is upper is also provided with water filling port (10) and water filling port (12) near two ends; Described water filling port (10) and water filling port (12) are hollow circuit cylinder; The closed cavity that described hollow circuit cylinder is formed with described piston jacket casing (11) and piston cylinder (9) communicates; Described hollow circuit cylinder is all furnished with rubber packing cover.
3. the experiment syringe probing into gas three law based on DIS according to claim 1, is characterized in that: described piston rod (5) is preferably right cylinder, and described right cylinder is provided with screw thread.
4. the experiment syringe probing into gas three law based on DIS according to claim 1, is characterized in that: the tube port position of described piston cylinder (9) is provided with screw thread.
5. the experiment syringe probing into gas three law based on DIS according to claim 1, is characterized in that: described clasp (8) is located at the center of described piston handle (7).
6. the experiment syringe probing into gas three law based on DIS according to claim 1, is characterized in that: described piston fixed cover (6) is made up of a piston cover (14) matched with described piston cylinder (9) and piston rod positioning sleeve (15); Described piston cover (14) and described piston rod positioning sleeve (15) are concentric coaxially arranges formation boss; Described piston rod positioning sleeve (15) is a cylinder; The inside diameter of described cylinder equals the diameter of described piston rod (5); The internal side wall of described cylinder is provided with the screw thread matched with screw thread on described piston rod (5); Described piston cover (14) internal side wall is provided with the screw thread matched with the nozzle screw thread of described piston cylinder (9).
7. the experiment syringe probing into gas three law based on DIS according to claim 6, is characterized in that: the top of described piston cover (14) is provided with bleeder vent; The cavity conducting that described bleeder vent and described piston (4), piston cylinder (9), piston rod (5), piston fixed cover (6) are formed; The outside of described bleeder vent communicates with air.
8. the experiment syringe probing into gas three law based on DIS according to claim 6 or 7, is characterized in that: on described piston rod positioning sleeve (15), is provided with a groove along cylindrical circumference.
9. the experiment syringe probing into gas three law based on DIS according to claim 6 or 8, is characterized in that: the top center of described piston cover (14) is provided with a circular hole, and described circular hole is stuck in the groove on described piston rod positioning sleeve (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510360935.5A CN104882049B (en) | 2015-06-26 | 2015-06-26 | The experiment syringe of three law of gas is probed into based on DIS |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510360935.5A CN104882049B (en) | 2015-06-26 | 2015-06-26 | The experiment syringe of three law of gas is probed into based on DIS |
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| CN104882049A true CN104882049A (en) | 2015-09-02 |
| CN104882049B CN104882049B (en) | 2018-11-06 |
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| CN201510360935.5A Active CN104882049B (en) | 2015-06-26 | 2015-06-26 | The experiment syringe of three law of gas is probed into based on DIS |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105825749A (en) * | 2016-06-15 | 2016-08-03 | 蒲元昊 | Experimental instrument for researching ideal gas state equation and operating method |
| CN110176169A (en) * | 2019-07-13 | 2019-08-27 | 沈向安 | A kind of new gas law experiment instrument |
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| CN2081554U (en) * | 1990-12-13 | 1991-07-24 | 广东省湛江市第一中学 | Gas law experiment apparatus |
| CN2456253Y (en) * | 2000-12-12 | 2001-10-24 | 肖毅 | Gas characteristics instrument |
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| CN204759849U (en) * | 2015-06-26 | 2015-11-11 | 沈向安 | Syringe is used in experiment based on DIS probes into three gaseous laws |
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2015
- 2015-06-26 CN CN201510360935.5A patent/CN104882049B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US3824708A (en) * | 1972-12-26 | 1974-07-23 | Xerox Corp | Educational device |
| CN2068418U (en) * | 1989-12-21 | 1991-01-02 | 西南石油学院 | Batch liquid-removing apparatus for chemical test |
| CN2081554U (en) * | 1990-12-13 | 1991-07-24 | 广东省湛江市第一中学 | Gas law experiment apparatus |
| CN2456253Y (en) * | 2000-12-12 | 2001-10-24 | 肖毅 | Gas characteristics instrument |
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| CN204759849U (en) * | 2015-06-26 | 2015-11-11 | 沈向安 | Syringe is used in experiment based on DIS probes into three gaseous laws |
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| 冉晓红: "查理定律实验的改进", 《物理实验》 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105825749A (en) * | 2016-06-15 | 2016-08-03 | 蒲元昊 | Experimental instrument for researching ideal gas state equation and operating method |
| CN105825749B (en) * | 2016-06-15 | 2019-06-14 | 威海泰华智能科技有限公司 | A kind of laboratory apparatus that probing into The Ideal-Gas Equation and operating method |
| CN110176169A (en) * | 2019-07-13 | 2019-08-27 | 沈向安 | A kind of new gas law experiment instrument |
| CN110176169B (en) * | 2019-07-13 | 2024-02-06 | 沈向安 | Gas law experiment instrument |
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| CN104882049B (en) | 2018-11-06 |
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