CN204965858U - Gas intensity of pressure probes device with velocity of flow relation - Google Patents
Gas intensity of pressure probes device with velocity of flow relation Download PDFInfo
- Publication number
- CN204965858U CN204965858U CN201520633929.8U CN201520633929U CN204965858U CN 204965858 U CN204965858 U CN 204965858U CN 201520633929 U CN201520633929 U CN 201520633929U CN 204965858 U CN204965858 U CN 204965858U
- Authority
- CN
- China
- Prior art keywords
- cardboard
- switch
- dynamometer
- tinsel
- acousto
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a gas intensity of pressure probes device with velocity of flow relation, characterized by: include battery, acousto -optic generator, switch, reach the wire of establishing ties, the switch is placed in the sheetmetal of both sides and is stretched over the tinsel of placing between two sheetmetals by the branch and constitutes, the tinsel covers on buckling into arched stereoplasm cardboard and the both ends of cardboard, the inboard formation to airflow channel of arch of cardboard, the cardboard hangs on the dynamometer of top. Airflow channel to cardboard arch below blows, and cardboard pulling spring moves down and the processing circuit switch, being unfavorable for in the fluid that the phenomenon of observing turns into interesting to listen to music, the light that glitters, and the change of dynamometer registration, has strengthened experiment effect and interest, and the perceptual knowledge is deep, helps strengthening student's liking physics.
Description
Technical field
The utility model relates to a kind of physics educational apparatus, particularly gas pressure intensity and flow velocity relation probes into device.
Background technology
In prior art, the experimental provision probing into gas pressure intensity and flow velocity relation is more, but effect is insipid mostly, particularly can not demonstrate the change of pressure size.Lack and a kind ofly conceive novelty, Be very effective, interesting strong probe into device,
Utility model content
The purpose of this utility model is: for solving the problem, and provides a kind of gas pressure intensity and flow velocity relation to probe into device, with the object be effective significantly, interest is strong, also will reflect the change of pressure size in good time.
The technical solution of the utility model is: a kind of gas pressure intensity and flow velocity relation probe into device, it is characterized in that: the wire comprising battery, acousto-optic generator, switch and connect, described switch is by the sheet metal of the both sides that are placed in and form across the tinsel be placed between two metal sheets, described tinsel cover be bent into arch solid fiberboard on and the two ends of cardboard, the shaped interior side of described cardboard is formed as gas channel, and described cardboard is suspended on the dynamometer of top.
Described battery, acousto-optic generator and wire are fixed on the panel of setting, and described sheet metal is laterally fixed on the both sides of panel upper wall.
Described lower panels is provided with underframe, and described panel and underframe are placed on iron stand, and described dynamometer is suspended on the cross bar above iron stand.
After adopting said structure, mouth is blown to the gas channel below cardboard arch containing suction pipe, or blow facing to gas channel with air gun, syringe, hair dryer etc., can find that cardboard moves down, after paper card two ends touch the sheet metal of panel both sides, circuit ON, so the light that acousto-optic generator sends interesting to listen to music and glitters, the registration simultaneously observing dynamometer becomes large, shows that cardboard is subject to downward pressure.
When blowing in gas channel, gas velocity below cardboard accelerates, pressure diminishes, and air-flow above cardboard and pressure constant, so cardboard is subject to downward pressure difference and pressure differential, cardboard, under the effect of downward pressure difference, pulls spring to move down, connect contactor, trigger the light that acousto-optic generator sends interesting to listen to music and glitters.
The utility model has the advantages that: connect ingenious to the research object in fluid and contactor, being unfavorable in fluid that the phenomenon of observing is converted into the change of interesting to listen to music, the light glittered and dynamometer registration, enhance experiment effect and interest, perceptual knowledge is deep, contributes to strengthening student's liking physics.
Accompanying drawing explanation
Fig. 1 is side view of the present utility model;
In figure: 1 iron stand, 2 batteries, 3 wires, 4 acousto-optic generators, 5 sheet metals, 6 cardboards, 7 cross bars, 8 dynamometers, 9 rope yarns, 10 gas channels, 11 panels, 12 underframe.
Embodiment
As shown in Figure 1, underframe 12 is fixed with panel 11, panel 11 is fixed with the battery 2 of series connection, wire 3, acousto-optic generator 4, the both sides of panel 11 upper wall are laterally fixed with sheet metal 5, and the sheet metal 5 of both sides is electrically connected with the wire 3 of both sides respectively.Two metal sheets 5 upper end is across being placed with cardboard 6, two foots cardboard 6 being coated with tinsel (masking foil as on cigarette), particularly cardboard 6 will be coated with tinsel, make when the bipod termination of cardboard 6 contacts the sheet metal 5 of both sides, circuit ON, acousto-optic generator 4 is started working.
As shown in Figure 1, cardboard 6 is for being bent into the solid fiberboard of arch, and indent inside the upper wall of panel 11, jointly to surround gas channel, for air blowing with the shaped interior side of cardboard.Cardboard 6 is suspended on the dynamometer 8 of top, and dynamometer 8 is suspended on the cross bar 7 above iron stand 1.
Claims (3)
1. a gas pressure intensity and flow velocity relation probe into device, it is characterized in that: the wire comprising battery, acousto-optic generator, switch and connect, described switch is by the sheet metal of the both sides that are placed in and form across the tinsel be placed between two metal sheets, described tinsel cover be bent into arch solid fiberboard on and the two ends of cardboard, the shaped interior side of described cardboard is formed as gas channel, and described cardboard is suspended on the dynamometer of top.
2. gas pressure intensity as claimed in claim 1 and flow velocity relation probe into device, it is characterized in that: described battery, acousto-optic generator and wire are fixed on the panel of setting, and described sheet metal is laterally fixed on the both sides of panel upper wall.
3. gas pressure intensity as claimed in claim 2 and flow velocity relation probe into device, and it is characterized in that: described lower panels is provided with underframe, described panel and underframe are placed on iron stand, and described dynamometer is suspended on the cross bar above iron stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520633929.8U CN204965858U (en) | 2015-08-21 | 2015-08-21 | Gas intensity of pressure probes device with velocity of flow relation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520633929.8U CN204965858U (en) | 2015-08-21 | 2015-08-21 | Gas intensity of pressure probes device with velocity of flow relation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204965858U true CN204965858U (en) | 2016-01-13 |
Family
ID=55060908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520633929.8U Expired - Fee Related CN204965858U (en) | 2015-08-21 | 2015-08-21 | Gas intensity of pressure probes device with velocity of flow relation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204965858U (en) |
-
2015
- 2015-08-21 CN CN201520633929.8U patent/CN204965858U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20160113 Termination date: 20160821 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |