CN2349563Y - Light source tracking detector - Google Patents
Light source tracking detector Download PDFInfo
- Publication number
- CN2349563Y CN2349563Y CN 98243772 CN98243772U CN2349563Y CN 2349563 Y CN2349563 Y CN 2349563Y CN 98243772 CN98243772 CN 98243772 CN 98243772 U CN98243772 U CN 98243772U CN 2349563 Y CN2349563 Y CN 2349563Y
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- CN
- China
- Prior art keywords
- light source
- photoelectric cell
- photoelectric
- source tracking
- tracking detector
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- 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 light source tracking detector which belongs to a detecting mechanism used for a light source tracking device. The utility model comprises at least one set of photovoltaic cells, wherein, each set of photoelectric cells is composed of two photoelectric cells with the same exchange energy, the included angle of the two photoelectric cells is not 0 DEG, 180 DEG and 360 DEG, and the two photoelectric cells are connected in the mode of reversed polarity. The deviation signal outputted by the utility model directly uses solar energy, and an external power source is not needed; therefore, the deviation and instability phenomena of an output O point caused by the variation side of a power supply voltage can be eliminated, the accuracy and the stability of the tracking detector are increased, and energy is saved. In addition, the utility model has the advantages of simple structure and convenient regulation.
Description
The utility model is a kind of light source tracking detector, belongs to a kind of detection agency that is used on the light source tracking device.
The utilization of sun power and popularize develops rapidly, as solar water heater, solar cooker, solar boiler etc., for making full use of sun power, improves the luminous energy density that absorbs and be one of the most effective means.Therefore the beam condensing unit of various sun power arises at the historic moment.Because the skyborne position of the sun constantly changes, the focus of beam condensing unit also is offset with moving of the sun.For the high density luminous energy behind the optically focused is aimed at transducer all the time, just need tracking means and realize this purpose.Luminous energy density is high more, and the optically focused precision is just high more.In addition, in scientific research and military installations, also usually need light source etc. is followed the tracks of.
Tracking means generally is made up of tracking detector and driver, and wherein, the precision of tracking detector is determining the precision of tracking means.General high-precision tracking detector is made up of the amplifier of high-precision photosensitive detecting element and high precision, high stability, its complex structure, cost height, fragile, and this just gives its universal difficulty of bringing in civilian installation.And existing simple, lower-cost its tracking accuracy of tracking detector is very low, does not have promotional value.
The purpose of this utility model is: the purpose of this utility model is: design a kind of cheap, the sun that tracking accuracy is high and the tracking detector of various light sources thereof, its tracking accuracy, output power do not rely on the gain and the precision of follower amplifier, but reach adjusting tracking sensitivity, output power and investigative range by the geometry and the shape of regulating self.
The utility model comprises at least one group of photoelectric cell, and identical and angle is not that the photoelectric cell of 0 °, 180 ° and 360 ° is formed by two transducings for every group of photoelectric cell, and these two photoelectric cell reversed polarity connect.Wherein two photoelectric cells in every group can be connected, and judge according to its output voltage; Perhaps two photoelectric cells connect in the electric bridge mode, judge according to its output current.
As everyone knows, photoelectric cell produces electric energy under the irradiation of light.Under the identical situation of the illumination that is received, its output voltage is identical if its transducing is identical.Every photronic output voltage is zero under the series connection situation, and its output current is zero under the electric bridge mode; If two photronic performances are difference to some extent, the adjustable resistance of can connecting in its branch road.When light source departs from the centre position, its output voltage be on the occasion of or negative value, and the output valve of voltage/current increases with the increase of light source deviation angle.The deviation signal of the utility model output is directly used sun power, do not need external power supply, therefore just eliminated deviation and wild effect that the output O that causes because of the mains voltage variations face is ordered, made the precision of tracking detector and stability all very high, and energy savings.In addition, of the present utility model simple in structure, easy to adjust.
Identical for guaranteeing two photronic transducings, the most direct way is to adopt two performances, shape, photoelectric cell that size is all identical.And two photoelectric cells preferably are tabular.
Realize the point of light source is followed the tracks of, can use two groups of photoelectric cells, and make two groups of photronic intersections be an angle, vertical mutually as two groups of photronic center lines.Two groups of photoelectric cells are exported two offset signal respectively, show the change in location on the two-dimentional coordinate respectively.
When photronic area was enough big, the electric weight of its generation was bigger, and offset voltage/electric current was also bigger when then light source departed from.At this moment do not need that its electric signal amplification can be detected light source and depart from situation.When the less photoelectric cell of usable floor area, the electric energy of its generation is less, at this moment can connect amplifying circuit at the output terminal of photoelectric cell group.
After learning the situation that departs from of light source, can adjust the position of daylighting thing by manual or external electromechanical assembly.Also can drive moving of daylighting object by the deviation signal that photoelectric cell of the present invention produces.At this moment, the driving mechanism that can form by window comparator circuit and motor-drive circuit and motor in the output termination of photoelectric cell group, motor shaft is connected with the support that the photoelectric cell group is installed.
Said window comparator circuit comprises two operational amplifiers that are connected with the output terminal of photoelectric cell group respectively, and they are connected with the output terminal of negative pole with the photoelectric cell group with its input anode respectively, its another input end grounding.
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.
Fig. 1 is the structural drawing of the utility model user mode;
Fig. 2 is the structural drawing of photoelectric cell group;
Fig. 3 is the circuit diagram of present embodiment;
Wherein, 1-reflective mirror, 2-thermoelectric generator, the vertical photoelectric cell group of 3-, the vertical rotary electric machine of 4-, 6-lateral rotation motor, 6-framework, 7-lateral light electric battery, 8-photoelectric cell, 9-support.
As shown in the figure, present embodiment is to utilize light source tracking detector to follow the tracks of the embodiment that light source is used to generate electricity.Present embodiment is made up of framework 6, the driving mechanism that is installed in parabolic mirror 1 on the framework 6, is positioned at the thermoelectric generator 2 on parabolic mirror 1 focus and is installed in the tracking detector of the longitudinal and transverse two directions on the framework 6 and be attached thereto respectively.Parabolic mirror 1 and thermoelectric generator 2 are installed on the framework 6 by a lateral shaft in the present embodiment, photoelectric cell group 3-that two photoelectric cells vertically arrange it and its amplifying circuit (operational amplifier A 1) are installed on this form vertical tracking detector.Each photoelectric cell group is made up of two photoelectric cells 8 that are installed on its support 9, and two photoelectric cells 8 are an angle.Vertically two two photoelectric cells are vertical arrangement in the photoelectric cell group 3 of tracking detector, and two photoelectric cells are transversely arranged in the photoelectric cell group 7 of horizontal tracing detector.With vertical tracking detector is example, and connected driving mechanism comprises the window comparator circuit of being made up of two operational amplifier A 2, A3.A2, A3 are connected with tracking detector with negative pole with the positive pole of its input end respectively, its another input end grounding.The output terminal of these two operational amplifiers connects vertical rotary electric machine 4 by motor-drive circuit, and then this motor shaft connects on the lateral shaft of parabolic mirror 1 by reducing gear.The driving mechanism that connects with the horizontal tracing detector is identical with the driving mechanism that is connected with vertical tracking detector, and it drives lateral rotation motor 5, and is connected with the longitudinal axis of framework 6 belows.
Claims (9)
1, a kind of light source tracking detector is characterized in that: it comprises at least one group of photoelectric cell, and identical and angle is not that the photoelectric cell (8) of 0 °, 180 ° and 360 ° is formed by two transducings for every group of photoelectric cell, and these two photoelectric cell reversed polarity connect.
2, light source tracking detector according to claim 1 is characterized in that: two photoelectric cells (8) series connection in each photoelectric cell group.
3, light source tracking detector according to claim 1 is characterized in that: two photoelectric cells (8) in each photoelectric cell group are formed electric bridge.
4, light source tracking detector according to claim 3 is characterized in that: the adjustable resistance of connecting respectively in the branch road at two photoelectric cells (8) place.
5, according to claim 1 or 2 or 3 or 4 described light source tracking detectors, it is characterized in that: performance, the shape, measure-alike of two photoelectric cells (8) in each photoelectric cell group.
6, the automatic tracking detector of light source according to claim 5 is characterized in that: two photoelectric cells (8) in each photoelectric cell group be shaped as tabular.
7, according to claim 1 or 2 or 3 or 4 described light source tracking detectors, it is characterized in that: it comprises two photoelectric cell groups, and two photronic place faces have an intersection in every group, and the intersection of two photoelectric cell groups is vertical mutually.
8, according to weighing and requiring 1 or 2 or 3 or 4 described light source tracking detectors, it is characterized in that: photronic output terminal connects driving circuit by window comparator circuit, is connect the support of installation photoelectric cell group by the motor of driving circuit control.
9, light source tracking detector according to claim 8 is characterized in that: said window comparator circuit is made up of two operational amplifiers, and they are connected its another input end grounding with the positive pole of its input end respectively with the output terminal of negative pole with the photoelectric cell group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98243772 CN2349563Y (en) | 1998-12-11 | 1998-12-11 | Light source tracking detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98243772 CN2349563Y (en) | 1998-12-11 | 1998-12-11 | Light source tracking detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2349563Y true CN2349563Y (en) | 1999-11-17 |
Family
ID=33990083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98243772 Expired - Fee Related CN2349563Y (en) | 1998-12-11 | 1998-12-11 | Light source tracking detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2349563Y (en) |
-
1998
- 1998-12-11 CN CN 98243772 patent/CN2349563Y/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 | ||
| 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 |