CN2248900Y - Multiple oscillogram projection device - Google Patents
Multiple oscillogram projection device Download PDFInfo
- Publication number
- CN2248900Y CN2248900Y CN95237471U CN95237471U CN2248900Y CN 2248900 Y CN2248900 Y CN 2248900Y CN 95237471 U CN95237471 U CN 95237471U CN 95237471 U CN95237471 U CN 95237471U CN 2248900 Y CN2248900 Y CN 2248900Y
- Authority
- CN
- China
- Prior art keywords
- oscillography
- eyeglass
- projection device
- oscillogram
- projection
- 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 relates to a graph projection device, especially to a multiple oscillogram projection device, comprising a multiple signal generator, a regulated power supply, a laser source and reflecting mirrors. Two mutually vertically placed dynamic loudspeakers are input pulse or acoustic frequency or other signals, and are respectively adhered with a mirror; the mirrors are driven to vibrate through the vibrations of the dynamic loudspeakers. When the laser beam shoots a mirror in an angle of 45 DEG, the light reflected from the second mirror projects on the screen and various changed oscillogram can be obtained. The device can be used for teaching demonstration and other occasions.
Description
The utility model relates to a kind of graphic projection device, particularly multiple oscillography figure projection arrangement.
The existing recording camera of testing or imparting knowledge to students of being used to, the oscillography display screen is less, the waveform of formed thereby is limited, particularly intuitively see the formation of lissajous figures (Lissajou ' s figures) and change does not still have make things convenient for, desirable approach.
The purpose of this utility model is to provide a kind of projection arrangement that can watch multiple oscillography figure easily.
The utility model is made up of the synthetic projecting subassembly that reaches of multiple signal generator, stabilized voltage supply, light source and figure, two catoptrons are adhered to respectively on two motor-operated horns, these loudspeaker by frame on a right angle support and mutually vertical, when loudspeaker by simultaneous input pulse or sound signal, light source is at a certain angle during incident piece eyeglass, the oscillography figure that can obtain synthesizing from the reflective projection of another piece eyeglass.
The utility model is simple in structure, by the projection of synthetic waveform, can understand the generation and the variation of waveform intuitively, and is especially favourable to teaching demonstration.
Now in conjunction with the accompanying drawings the utility model is described in detail.
Fig. 1 is the utility model structural representation
Among the figure: 1-right angle rack 2-motor-operated horn
3-eyeglass 4-cone
5-lightweight support member 6-light beam
The 7-laser instrument
The utility model is by multiple signal generator, stabilized voltage supply, synthetic and the projecting subassembly composition of light source and figure, wherein, stabilized voltage supply is a signal generator, the synthetic assembly of light source and figure provides work required power supply, organizing two motor-operated horns (2) is placed on the right angle support (1) by frame, two eyeglasses are adhered on the motor-operated horn respectively, it specifically is the cone edge that an end of eyeglass sticks on loudspeaker, the other end is then supported by a light material (5), this support member bottom is secured at the center of loudspeaker, like this, when motor-operated horn is transfused to signal generation vibration, can drive the eyeglass vibration, one helium-neon laser is that light beam that light source produced is with eyeglass of 45 incident, the light beam that this eyeglass reflects is again with another piece eyeglass of 45 incident, then the light that reflects of second eyeglass is opposite with incident light source direction first carries out projection, this reflected light has reflected the synthetic of mutually perpendicular two vibration signals, thereby can demonstrate the generation and the change procedure of this phenomenon intuitively from projection.For example: with two motor-operated horns input audio signals respectively, the frequency of regulating two input signals becomes ratio of integers, just can obtain lissajous figures (Lissajou ' s figures) on projection screen.
Claims (2)
1, a kind of graphic projection device, particularly multiple oscillography figure projection arrangement, form by multiple signal generator, stabilized voltage supply and light source and the synthetic projecting subassembly that reaches of figure, it is characterized in that, two motor-operated horns that are transfused to pulse or sound signal are the vertical mutually placement of the synthetic assembly of figure as the vibration transfer device, two eyeglasses adhere on it respectively, the laser beam that one laser instrument produces is with minute surface of 45 incident, promptly obtained the oscillography figure that synthesizes by the reflected light projection screen of another piece minute surface.
2, multiple oscillography figure projection arrangement according to claim 1, it is characterized in that, two motor-operated horns are placed on one group of right angle rack by frame respectively, eyeglass one end on it is secured at the edge of loudspeaker cone, the other end is supported by the light material that is pasted on the cone center, so that loudspeaker when being transfused to the vibration of various signals, driving eyeglass and do small rotation around affixed points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95237471U CN2248900Y (en) | 1995-08-22 | 1995-08-22 | Multiple oscillogram projection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95237471U CN2248900Y (en) | 1995-08-22 | 1995-08-22 | Multiple oscillogram projection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2248900Y true CN2248900Y (en) | 1997-03-05 |
Family
ID=33880172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95237471U Expired - Fee Related CN2248900Y (en) | 1995-08-22 | 1995-08-22 | Multiple oscillogram projection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2248900Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930761A (en) * | 2012-11-07 | 2013-02-13 | 上海理工大学 | Flash synchronization demonstration system and demonstration method of complex network |
-
1995
- 1995-08-22 CN CN95237471U patent/CN2248900Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930761A (en) * | 2012-11-07 | 2013-02-13 | 上海理工大学 | Flash synchronization demonstration system and demonstration method of complex network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |