CN205354483U - Teaching is with falling ball method viscosity coefficient apparatus - Google Patents
Teaching is with falling ball method viscosity coefficient apparatus Download PDFInfo
- Publication number
- CN205354483U CN205354483U CN201620037573.6U CN201620037573U CN205354483U CN 205354483 U CN205354483 U CN 205354483U CN 201620037573 U CN201620037573 U CN 201620037573U CN 205354483 U CN205354483 U CN 205354483U
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- China
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- laser
- teaching
- falling ball
- ball method
- viscosity coefficient
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Abstract
The utility model provides a teaching is with falling ball method viscosity coefficient apparatus, the apparatus body includes frame and chassis, chassis central part has placed a graduated flask, is provided with the pipe on the frame of graduated flask top, installs laser emitter on the support of graduated flask one side, installs the laser receiver corresponding with laser emitter on its opposite side support, photoelectric sensor installs on laser emitter's transmission port, the photoelectricity time -recorder install in the outside of whole apparatus, laser emitter, laser receiver and photoelectric sensor are connected with laser signal controller in the photoelectricity time -recorder through the wire respectively. The utility model discloses simple structure, convenient operation, difference in height that can two upper and lower laser emitter of accurate measurement, chronograph sets up speed conversion functions, leaves out computing process, reduces experimental error, improves experimental efficiency, easily adjust, the student can direct analyzed experiment process through the operation, improves the falling ball method viscosity coefficient apparatus of testing the teaching efficiency.
Description
Technical field
This utility model relates to a kind of teaching determinator, specifically a kind of teaching falling ball method viscosity coefficient investigating instrument.
Background technology
The measurement of fluid viscosity is very important, and the research of fluid viscosity is widely used in fields such as medical treatment, aviation, water conservancy, mechanical lubrication and hydraulic drives, and falling ball method is a kind of common method of the coefficient of viscosity measuring liquid.Common physics experiment teaching, measure first according to the rule having on analyzer, set the difference in height of upper and lower two generating lasers, if the luffing angle fixing two generating laser screws in operation slightly changes, difference in height will be made to produce change, thus producing experimental error, directly affect result of calculation.
Utility model content
This utility model is for the technological deficiency mentioned in background technology, it is provided that the teaching falling ball method viscosity coefficient investigating instrument that a kind of simple in construction, measurement result error are little.
This utility model be the technical scheme is that a kind of teaching falling ball method viscosity coefficient investigating instrument, including analyzer body, described analyzer body includes framework and chassis, chassis central part is placed with a graduated cylinder, cylinder head framework is provided with conduit, the framework of graduated cylinder both sides is support, also includes laser photoelectricity chronograph, and this laser photoelectricity chronograph includes generating laser, laser pickoff, photoelectric sensor and phototimer；Wherein:
Graduated cylinder one side stand is provided with generating laser, its opposite side support is provided with the laser pickoff corresponding with generating laser；Described photoelectric sensor is arranged on the emission port of generating laser；Described phototimer is arranged on the outside of whole analyzer, and generating laser, laser pickoff and photoelectric sensor are connected with the laser signal controller in phototimer respectively through wire.
Support is separately installed with two generating lasers and two laser pickoffs；Two generating lasers are set up in parallel up and down, and two laser pickoffs are set up in parallel up and down.
Generating laser and laser pickoff are movably arranged on support respectively through connector.
Support is installed with rule.
Phototimer is provided with rate conversion module.
This utility model simple in construction, easy to operate, it is possible to accurately to measure the difference in height of upper and lower two generating lasers；Chronograph arranges rate conversion function, omits calculating process, reduces experimental error, improves conventional efficient；Can easily be accommodated, student be operated by can direct analysis experimentation, thus improving the falling ball method viscosity coefficient investigating instrument of experimental teaching efficiency.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is the front view of phototimer in this utility model.
Fig. 3 is the rearview of Fig. 2.
In figure: conduit 1, laser pickoff 2, graduated cylinder 3, chassis 4, support 5, photoelectric sensor 6, generating laser 7, phototimer main frame rear board 8, laser signal controller 9, supply socket 10, phototimer main frame front panel 11, phototimer 12, on and off switch 13, timer reset device 14.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is described further.
Referring to accompanying drawing 1-3, this analyzer disclosed in the utility model is a kind of falling ball method viscosity coefficient investigating instrument imparted knowledge to students, and it mainly includes conduit 1, laser pickoff 2, graduated cylinder 3, chassis 4, support 5, photoelectric sensor 6, generating laser 7, phototimer main frame rear board 8, laser signal controller 9, supply socket 10, phototimer main frame front panel 11, phototimer 12, on and off switch 13, timer reset device 14.
This teaching falling ball method viscosity coefficient investigating instrument, including analyzer body and laser photoelectricity chronograph.Analyzer body includes framework and chassis, and chassis central part is placed with a graduated cylinder, and cylinder head framework is provided with conduit, and the framework of graduated cylinder both sides is support.Laser photoelectricity chronograph includes generating laser, laser pickoff, photoelectric sensor and phototimer.
Graduated cylinder one side stand is provided with generating laser, its opposite side support is provided with the laser pickoff corresponding with generating laser；Support is separately installed with two generating lasers and two laser pickoffs；Two generating lasers are set up in parallel up and down, and two laser pickoffs are set up in parallel up and down.Generating laser and laser pickoff are movably arranged on support respectively through bolt connection piece.Support is installed with rule, it is possible to for the papery rule pasted, it is possible to for being engraved in the rule on support outer wall.
The emission port of each generating laser is mounted on a photoelectric sensor.Phototimer is arranged on the outside of whole analyzer, and generating laser, laser pickoff and photoelectric sensor are connected with the laser signal controller in phototimer respectively through wire.Phototimer is provided with rate conversion module.After the signal of input is processed by phototimer, export corresponding time and speed.
In experimentation, need to verify whether the dropping process of bead is at the uniform velocity.So in the adjustment process of tester for viscosity factor, need to regulate laser timing light path, first set the difference in height of upper and lower two generating lasers as whole range distance, the position of two generating lasers of coarse adjustment is come with the rule having on support, place graduated cylinder on chassis, open the on and off switch on phototimer, can be seen that two generating lasers send HONGGUANG；Regulate upper and lower two generating lasers so that it is red laser beam can be received by the aperture of corresponding laser pickoff just through graduated cylinder, and now the signal lamp on phototimer is bright.Resetting by reset key, put into by bead in conduit, when bead falls, when stopping above red laser beam, light is obstructed, and now self-clocking starts, and drops to when stopping following red laser beam to bead, and timing stops.Bead distance of fall that phototimer is recorded by photoelectric sensor and the omnidistance falling speed of the time output bead that laser instrument records.The difference in height resetting upper and lower two generating lasers is half way distance, and ibid method measures the falling speed of bead half way.Whether multilevel iudge bead falls is at the uniform velocity.
Claims (5)
1. a teaching falling ball method viscosity coefficient investigating instrument, including analyzer body, described analyzer body includes framework and chassis, chassis central part is placed with a graduated cylinder, being provided with conduit on cylinder head framework, the framework of graduated cylinder both sides is support, it is characterised in that, also including laser photoelectricity chronograph, this laser photoelectricity chronograph includes generating laser, laser pickoff, photoelectric sensor and phototimer；Wherein:
Graduated cylinder one side stand is provided with generating laser, its opposite side support is provided with the laser pickoff corresponding with generating laser；Described photoelectric sensor is arranged on the emission port of generating laser；Described phototimer is arranged on the outside of whole analyzer, and generating laser, laser pickoff and photoelectric sensor are connected with the laser signal controller in phototimer respectively through wire.
2. teaching falling ball method viscosity coefficient investigating instrument according to claim 1, it is characterised in that be separately installed with two generating lasers and two laser pickoffs on support；Two generating lasers are set up in parallel up and down, and two laser pickoffs are set up in parallel up and down.
3. teaching falling ball method viscosity coefficient investigating instrument according to claim 1, it is characterised in that described generating laser and laser pickoff are movably arranged on support respectively through connector.
4. teaching falling ball method viscosity coefficient investigating instrument according to claim 1, it is characterised in that be installed with rule on described support.
5. teaching falling ball method viscosity coefficient investigating instrument according to claim 1, it is characterised in that be provided with rate conversion module in described phototimer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620037573.6U CN205354483U (en) | 2016-01-15 | 2016-01-15 | Teaching is with falling ball method viscosity coefficient apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620037573.6U CN205354483U (en) | 2016-01-15 | 2016-01-15 | Teaching is with falling ball method viscosity coefficient apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205354483U true CN205354483U (en) | 2016-06-29 |
Family
ID=56174717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620037573.6U Expired - Fee Related CN205354483U (en) | 2016-01-15 | 2016-01-15 | Teaching is with falling ball method viscosity coefficient apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205354483U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112630102A (en) * | 2020-12-28 | 2021-04-09 | 江苏师范大学 | Linear laser-detector array photoelectric gate liquid viscosity intelligent measuring device |
-
2016
- 2016-01-15 CN CN201620037573.6U patent/CN205354483U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112630102A (en) * | 2020-12-28 | 2021-04-09 | 江苏师范大学 | Linear laser-detector array photoelectric gate liquid viscosity intelligent measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20170115 |