CN208443479U - A kind of light intensity test device - Google Patents
A kind of light intensity test device Download PDFInfo
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- CN208443479U CN208443479U CN201820778544.4U CN201820778544U CN208443479U CN 208443479 U CN208443479 U CN 208443479U CN 201820778544 U CN201820778544 U CN 201820778544U CN 208443479 U CN208443479 U CN 208443479U
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- China
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- light intensity
- test device
- intensity test
- piezoelectric ceramics
- partial pressure
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Abstract
The utility model relates to a kind of light intensity test device, described device includes power supply, photo resistance, electric resistance partial pressure mechanism, capacitor, piezoelectric ceramics, Laser emission and reception device and single-chip microcontroller；Wherein, the power supply, photo resistance, the connection of electric resistance partial pressure mechanisms in series；The capacitor is connected in parallel with the electric resistance partial pressure mechanism；The centre of the capacitor is arranged in the piezoelectric ceramics；The Laser emission and reception device are arranged on one end of the capacitor, piezoelectric ceramics surface described in laser detection transmitting and receiving portion face；The single-chip microcontroller is electrically connected with the Laser emission with reception device.The utility model has many advantages, such as that simple design, portable use and detection are accurate.
Description
Technical field
The utility model relates to a kind of detection device, especially a kind of light intensity test device.
Background technique
With the development of living standard, the mankind more and more use illumination, and there are health care, illumination in the effect field of light
Illumination etc..In order to reduce the injury of the waste and light pollution of light resource to life, need to design one kind can to ambient light intensity into
The device that row accurately detects.
The piezoelectric ceramics of the prior art is a kind of ceramic material that can convert mutually mechanical energy and electric energy, is belonged to
Inorganic non-metallic material, its working principle is that when applying pressure or pulling force to piezoelectric ceramics, it can shape at the both ends of piezoelectric ceramics
At potential difference, electric current can be formed by circuit, this effect is known as piezoelectric effect.Piezoelectric ceramics has very sensitive spy
Property, its faint mechanical oscillation can be converted into electric signal, using the piezoelectric effect of piezoelectric ceramics sensitivity, in the prior art
In, piezoelectric ceramics has been used for sonar system, meteorological detection, telemetering environmental protection, household electrical appliance etc., but in light intensity
In detection, there are no apply piezoelectric ceramics wherein.
The detection of ambient light intensity, photo resistance vulcanization are relatively widely carried out using photo resistance in the prior art
Every or selenizing particular resistor made of equal semiconductor materials, its working principle is that being based on inner photoeffect.Photo resistance tool
The characteristic for thering is its resistance value to change as incident light power changes, and photo resistance is very sensitive to light, is generally used for light
Measurement, light control and photoelectric conversion (by the variation of light be converted to electricity variation).Currently, will not pressed in existing technology
Electroceramics and photo resistance R. concomitans are on light intensity sensing device.
The most design comparison of optical detection device at present on the market is complicated, and manufacturing cost is relatively high, and inconvenient to carry
With use.Therefore, designing a kind of simple design, portable use and the accurate light intensity test device of detection is highly desirable.
Utility model content
In view of the problems of the existing technology the utility model, designs a kind of light intensity test device, it is intended that provide a kind of tool
There is the light intensity test device for designing the features such as simple, easy to carry, detection is accurate.
To achieve the goals above, the technical scheme that the utility model is provided is as follows:
A kind of light intensity test device, described device include power supply, photo resistance, electric resistance partial pressure mechanism, capacitor, piezoelectricity pottery
Porcelain, Laser emission and reception device and single-chip microcontroller；Wherein,
The power supply, photo resistance, the connection of electric resistance partial pressure mechanisms in series；
The capacitor is connected in parallel with the electric resistance partial pressure mechanism；
The centre of the capacitor is arranged in the piezoelectric ceramics；
The Laser emission and reception device are arranged on one end of the capacitor, laser detection transmitting and receiving portion
Piezoelectric ceramics surface described in face；
The single-chip microcontroller is electrically connected with the Laser emission with reception device.
Further, described device further includes display screen, the display screen and the monolithic mechatronics.
Further, the electric resistance partial pressure mechanism is indicator light.
Further, described device further includes switch, the switch and the power supply, electric resistance partial pressure mechanism, photo resistance
It is connected in series.
Further, described device further includes shell, and the display screen, indicator light, opening the light is arranged in the case surface.
Further, piezoelectric ceramics upper and lower level outer surface is coated with electrode.
Further, the electrode material is gold or platinum or conductive silver paste.
Further, the electrode surface makees insulation processing.
Further, the upper exterior surfaces electrode of the piezoelectric ceramics is flat and smooth, and lower layer's outer surface electrode is flat and smooth.
Further, the transmitting of the Laser emission and reception device and receiving portion central axis are made pottery in the piezoelectricity
Porcelain upper exterior surfaces electrode.
Compared with prior art, the utility model has the following beneficial effects:
The core technology feature of the utility model is the utility model compared to existing light intensity test device, and design is more
Simply, component part is less, so that people be facilitated to carry and use；The characteristic of photo resistance simultaneously makes the device to light intensity
It is more accurate to detect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model light intensity test device:
Wherein, attached drawing identifies:
1 shell, 2 power supply
3 conducting wire, 4 single-chip microcontroller
5 display screen, 6 capacitor
7 piezoelectric ceramics, 8 Laser emission and reception device
9 electric resistance partial pressure mechanism, 10 photo resistance
11 switches
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
In the present embodiment, as shown in Figure 1, a kind of light intensity test device, described device include power supply 2, photo resistance 10,
Electric resistance partial pressure mechanism 9, capacitor 6, piezoelectric ceramics 7, Laser emission and reception device and single-chip microcontroller 8；Wherein,
The power supply 2, photo resistance 10, electric resistance partial pressure mechanism 9 are connected in series, and power supply 2 is DC power supply, Ke Yiwei
1.5V perhaps 5V or 10V.Photo resistance 10 be with vulcanization every or selenizing particular resistor made of equal semiconductor materials,
Its working principle is that being based on inner photoeffect.Illumination is stronger, and resistance value is just lower, and with the raising of intensity of illumination, resistance value is rapid
It reduces, light resistance value can be as small as 1K Ω or less.Photo resistance 10 is very sensitive to light, is in high-impedance state when there is no light,
Dark resistance is generally up to 1.5M Ω.Photo resistance 10 its small in size, high sensitivity, performance be stable, low-cost feature answers it
Automatic exposure, burglar alarm etc. in automatic brightness adjustment, camera with very extensive, such as in television set.In this reality
In novel, when the photo resistance 10 is irradiated by ambient lighting, resistance value changes with the power of incident light, to flow to
The electric current of capacitor 6 is different.Electric resistance partial pressure mechanism 9 can be indicator light, be also possible to resistance.
The capacitor 6 is connected in parallel with the electric resistance partial pressure mechanism 9.
The centre of the capacitor 6 is arranged in the piezoelectric ceramics 7, and piezoelectric ceramics 7 is a kind of electronics with piezoelectric effect
Ceramic material.Piezoelectric effect refer to certain dielectrics when being deformed in a certain direction by the effect of external force, internal meeting
Polarization phenomena are generated, while positive and negative opposite charge occur on its two apparent surfaces.After external force is removed, it again can be extensive
Uncharged state is arrived again, and this phenomenon is known as direct piezoelectric effect.When the direction of active force changes, the polarity of charge is also therewith
Change.On the contrary, these dielectrics can also deform when applying electric field on polarization of dielectric direction, and after electric field removes, electricity
The deformation of medium disappears therewith, and this phenomenon is known as inverse piezoelectric effect.The utility model application is inverse piezoelectric effect, capacitor 6
Electric field apply different degrees of external force to piezoelectric ceramics 7 so that different degrees of deformation occurs for piezoelectric ceramics.When switch 11 is
The electric field of capacitor 6 disappears when closed state, is applied to external force on piezoelectric ceramics 7 and disappears, and the deformation of piezoelectric ceramics 7 is also therewith
It disappears, restores to the original state.The electrode material of the piezoelectric ceramics 7 is that gold or platinum or conductive silver paste, electrode surface insulate
Processing, electrode surface is smooth, and laser is easy reflection, improves accuracy.
The Laser emission and reception device 8 are arranged on one end of the capacitor, and Laser emission and receiving portion are just
To the piezoelectric ceramics surface.Laser emission is special using high directivity, high monochromaticity and the high brightness of laser etc. with reception device 8
Contactless telemeasurement can be achieved in point.When Laser emission and reception device 8 work, first by laser emitting diode alignment target
Emit laser pulse, laser is scattered to all directions after target reflects, and some scattered light returns to receiver, by recording and locating
Reason is issued to return from light pulse and is received the time experienced, can measure target range.The Laser emission and reception fill
Set 8 measurements is the time used in its distance to piezoelectric ceramics 7, and the electric field external force that piezoelectric ceramics 7 receives capacitor 6 is bigger, shape
Become bigger, Laser emission and the time that reception device 8 measures are longer.
The single-chip microcontroller 4 is electrically connected with the Laser emission with reception device 8, and Laser emission and reception device 8 are by data
It is transferred on single-chip microcontroller 4, single-chip microcontroller 4 carries out data processing.
In the present embodiment, as shown in Figure 1, described device further includes display screen, the display screen 5 and the single-chip microcontroller 4
Connection.It after single-chip microcontroller 4 is handled the data that Laser emission and reception device 8 transmit, is output on display screen 5, shows
Display screen 5 shows intensity of illumination.
In the present embodiment, as shown in Figure 1, the electric resistance partial pressure mechanism 9 is indicator light.
In the present embodiment, as shown in Figure 1, described device further includes switch 11, the switch 11 and power supply 2, resistance point
Press mechanism 9, photo resistance 10 are connected in series.The setting of switch 11 is used to control the device to be opened or closed, and is not needing to detect
When switch can be set to off closed state.
In the present embodiment, as shown in Figure 1, described device further includes shell 1, shown display screen 5, switch 11, indicator light 9
It is arranged in case surface.
In the present embodiment, as shown in Figure 1, the transmitting of the Laser emission and reception device and receiving portion center line hang down
Directly in the 7 upper exterior surfaces electrode of piezoelectric ceramics.
The core technology feature of the utility model is the utility model compared to existing light intensity test device, and design is more
Simply, component part is less, so that people be facilitated to carry and use；The characteristic of photo resistance simultaneously makes the device to light intensity
It is more accurate to detect.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the protection scope of the utility model.
Claims (10)
1. a kind of light intensity test device, which is characterized in that described device includes power supply, photo resistance, electric resistance partial pressure mechanism, electricity
Appearance, piezoelectric ceramics, Laser emission and reception device and single-chip microcontroller；Wherein,
The power supply, photo resistance, the connection of electric resistance partial pressure mechanisms in series；
The capacitor is connected in parallel with the electric resistance partial pressure mechanism；
The centre of the capacitor is arranged in the piezoelectric ceramics；
The Laser emission and reception device are arranged on one end of the capacitor, laser detection transmitting and receiving portion face
The piezoelectric ceramics surface；
The single-chip microcontroller is electrically connected with the Laser emission with reception device.
2. light intensity test device according to claim 1, which is characterized in that described device further includes display screen, described aobvious
Display screen and the monolithic mechatronics.
3. light intensity test device according to claim 2, which is characterized in that the electric resistance partial pressure mechanism is indicator light.
4. light intensity test device according to claim 3, which is characterized in that described device further includes switch, the switch
It is connected in series with the power supply, electric resistance partial pressure mechanism, photo resistance.
5. light intensity test device according to claim 4, which is characterized in that described device further includes shell, the display
Screen, indicator light, opening the light is arranged in the case surface.
6. light intensity test device according to claim 1, which is characterized in that piezoelectric ceramics upper and lower level outer surface is coated with
Electrode.
7. light intensity test device according to claim 6, which is characterized in that the electrode material be gold or platinum or
Conductive silver paste.
8. light intensity test device according to claim 6 or 7, which is characterized in that the electrode surface makees insulation processing.
9. light intensity test device according to claim 8, which is characterized in that the upper exterior surfaces electrode of the piezoelectric ceramics
Flat and smooth, lower layer's outer surface electrode is flat and smooth.
10. light intensity test device according to claim 9, which is characterized in that the hair of the Laser emission and reception device
It penetrates and receiving portion central axis is in the piezoelectric ceramics upper exterior surfaces electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820778544.4U CN208443479U (en) | 2018-05-23 | 2018-05-23 | A kind of light intensity test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820778544.4U CN208443479U (en) | 2018-05-23 | 2018-05-23 | A kind of light intensity test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208443479U true CN208443479U (en) | 2019-01-29 |
Family
ID=65092145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820778544.4U Withdrawn - After Issue CN208443479U (en) | 2018-05-23 | 2018-05-23 | A kind of light intensity test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208443479U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593102A (en) * | 2018-05-23 | 2018-09-28 | 广州大学 | A kind of light intensity test device |
-
2018
- 2018-05-23 CN CN201820778544.4U patent/CN208443479U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593102A (en) * | 2018-05-23 | 2018-09-28 | 广州大学 | A kind of light intensity test device |
| CN108593102B (en) * | 2018-05-23 | 2023-07-07 | 广州大学 | Light intensity detection device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190129 Effective date of abandoning: 20230707 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190129 Effective date of abandoning: 20230707 |