CN2123801U - Suspension globe - Google Patents
Suspension globe Download PDFInfo
- Publication number
- CN2123801U CN2123801U CN 92215714 CN92215714U CN2123801U CN 2123801 U CN2123801 U CN 2123801U CN 92215714 CN92215714 CN 92215714 CN 92215714 U CN92215714 U CN 92215714U CN 2123801 U CN2123801 U CN 2123801U
- Authority
- CN
- China
- Prior art keywords
- spheroid
- globe
- operational amplifier
- terrestrial globe
- floated
- 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.)
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- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model relates to a suspension globe for teaching, comprising a globe body, an upper support, a lower support, and a supporting rod. The upper end and the lower end of the inner of the globe body are respectively provided with an upper magnetic steel and a lower magnetic steel; the upper support is provided with an iron core and a control coil, and the lower support is provided with an induction coil which can get space between the globe body of the globe and the upper support and space between the globe body of the globe and the lower support to respectively form a magnetic field by utilizing the principle of magnetic induction. The globe body can be stably suspended in the air using the method of controlling the size of magnetic acting force to the globe body by a simple electronic control device. Compared with traditional globe, the suspension globe has the advantages of simulating the scene of the earth suspended in the aether; thus visual effect is improved, and the utility model is a novel electronic teaching aid.
Description
The utility model relates to a kind of floated terrestrial globe of the usefulness of imparting knowledge to students.
At present, the terrestrial globe of teaching usefulness is generally by spheroid, upper and lower bearing, cramp bar and the axle center above, that undersetting is supporting-point are formed, stir spheroid with hand during use, spheroid promptly turns to required geographic position around the axle center, and the terrestrial globe of this traditional type is suspended in sight in the space because of not simulating the earth, so visual effect is not good enough.
The purpose of this utility model provide a kind of novelty, spheroid can be suspended in aerial and be in the Floating terrestrial globe of a steady state (SS), be suspended in the sight of space and improve visual effect to reach the simulation earth.
The utility model be achieved in that for the spheroid that makes terrestrial globe stable be suspended in the space, utilize magnetic induction principle, make space and the space between spheroid lower end and the undersetting between spheroid upper end and the upper bracket respectively form a magnetic field.For this reason, on spheroid, magnet steel is all settled at following two ends, and the electromagnet that has an energy that the position of spheroid is controlled at upper bracket, at undersetting an inductive coil is arranged, during normal condition, because it is last, the effect of lower magnetic force, spheroid is in the equilibrium state of a suspension, in case the spheroid position changes, out of trim, line of induction coil detects the changes of magnetic field that forms because of the variation of spheroid upright position at once, and generation electric signal, after placing easy electronic-controlled installation on the terrestrial globe that electric signal is carried out a series of processing and amplifying by one, adjust the size of electromagnet by control circuit, thereby make spheroid be in stable suspended state all the time spheroid magnetic action power.
The floated terrestrial globe that the utility model provides, owing to utilize magnetic induction principle and adopted comparatively easy electronic-controlled installation, thereby the spheroid that can make terrestrial globe is suspended in aerial and is in steady state (SS), compare with the traditional type terrestrial globe, have the advantages that the simulation earth is suspended in the sight of space, thereby improved visual effect, be a kind of electronic instruction apparatus of novelty.
Below in conjunction with accompanying drawing the utility model is specifically described.
The utility model has three accompanying drawings.
Fig. 1: floated terrestrial globe structural representation
Fig. 2: floated terrestrial globe electronic-controlled installation block scheme
Fig. 3: floated terrestrial globe electronic-controlled installation circuit diagram
As shown in Figure 1, floated terrestrial globe is by spheroid (1), upper bracket (8), undersetting (4), the cramp bar (9) that upper and lower bearing is fused, electronic-controlled installation (10) is formed, at the upper magnetic steel (5) of the inner last end device one garden shape of spheroid (1), also settle the lower magnetic steel (2) of a garden shape in the lower end, stick with glue fixing, upper and lower magnet steel is permanent magnet, has one by iron core (6) and control coil L at upper bracket (8) corresponding to the position of upper magnetic steel (5)
2(7) electromagnet of Zu Chenging, behind coil electricity, space between electromagnet and upper magnetic steel (5) forms a magnetic field, corresponding to the position of lower magnetic steel (2) an inductive coil L is arranged at undersetting (4)
1(3), behind coil electricity, at inductive coil L
1(3) and the space between the lower magnetic steel (2) also form a magnetic field, under the effect of upper and lower magnetic field force, spheroid (1) is stable is suspended in space between upper bracket (8) and the undersetting (4), in case variation has taken place in the equilibrium position of spheroid (1), by placing the action of the electronic-controlled installation (10) in the terrestrial globe undersetting (4), can make spheroid return to original equilibrium position.The principle of work block scheme of electronic-controlled installation (10) and circuit diagram thereof such as Fig. 2, shown in Figure 3, electronic-controlled installation (10) consists of the following components:
(1) sensor circuit, this circuit is by inductive coil L
1, operational amplifier A
1And peripheral circuits formation oscillator, produce the sine wave signal that frequency is constant, inductive coil L
1An end and running amplifier A
1Input end link to each other, when spheroid (1) when the upright position changes, make and pass line of induction L
1Magnetic flux change, cause that the amplitude of output signal changes, this signal is by operational amplifier A
1Output.
(2) signal processing circuit, the input end of this circuit is provided with capacitor C
2, diode D
2, both connect afterwards and operational amplifier A
1Output terminal link to each other, the electric signal of spheroid (1) change in location is through capacitor C
2Diode D
2Change direct current signal into after rectification, the filtering and be input to operational amplifier A
2, by operational amplifier A
2～A
6Formed follow comparer to the input signal carry out a series of processing and amplifying after, by operational amplifier A
6Output voltage control signal.
(3) control circuit, this circuit is provided with field effect transistor Q
2, its grid is through resistance R
25With operational amplifier A
6Output terminal link to each other its drain electrode and control coil L
2Link to each other, control the conducting amount of field effect transistor by adjusting potential difference (PD) between grid and source electrode, with control coil L
2The size of middle electric current is promptly controlled the size of electromagnet to spheroid magnetic action power.
(4) power circuit constitutes the direct supply of two-supply circuit as operational amplifier by IC and peripheral circuits, control coil L
2Direct supply then directly provide through rectification, filtering by transformer B.
Claims (5)
1, a kind of floated terrestrial globe, comprise spheroid (1), upper bracket (8), undersetting (4), cramp bar (9), it is characterized in that described spheroid (1) is suspended in the space between upper bracket (8) and the undersetting (4), respectively settle upper magnetic steel (5) and lower magnetic steel (2) at the upper/lower terminal that spheroid (1) is inner, have at the position of the corresponding upper magnetic steel of upper bracket (8) (5) one be used for controlling spheroid (1) position contain iron core (6) and control coil L
2(7) electromagnet has an inductive coil L that can detect spheroid (1) change in location at the position of the corresponding lower magnetic steel of undersetting (4) (2)
1(3), an electronic-controlled installation (10) is arranged on the bearing of described terrestrial globe.
2, floated terrestrial globe according to claim 1 is characterized in that described electronic-controlled installation (10) by sensor circuit, signal processing circuit, and control circuit three parts compose in series.
3, floated terrestrial globe according to claim 1 and 2 is characterized in that described sensor electrical route inductive coil L
1, operational amplifier A
1Constitute oscillator, an end and the operational amplifier A of inductive coil
1Input end link to each other operational amplifier A
1The electric signal of output spheroid (1) change in location.
4, floated terrestrial globe according to claim 1 and 2 is characterized in that the input end of described signal processing circuit is provided with capacitor C
2, diode D
2, both connect afterwards and operational amplifier A
1Output terminal link to each other, by operational amplifier A
2～A
6The comparer of forming of following carries out processing and amplifying to signal.
5, floated terrestrial globe according to claim 1 and 2 is characterized in that described control circuit is provided with field effect transistor Q
2, its grid is through resistance R
25With operational amplifier A
6Output terminal link to each other its drain electrode and control coil L
2Link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92215714 CN2123801U (en) | 1992-06-17 | 1992-06-17 | Suspension globe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92215714 CN2123801U (en) | 1992-06-17 | 1992-06-17 | Suspension globe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2123801U true CN2123801U (en) | 1992-12-02 |
Family
ID=4960077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92215714 Granted CN2123801U (en) | 1992-06-17 | 1992-06-17 | Suspension globe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2123801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100403353C (en) * | 2002-09-24 | 2008-07-16 | 安德拉斯·帕克勒 | Globe |
-
1992
- 1992-06-17 CN CN 92215714 patent/CN2123801U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100403353C (en) * | 2002-09-24 | 2008-07-16 | 安德拉斯·帕克勒 | Globe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |