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Sun light tracking sensor

A sensor and sunlight technology, applied in the field of solar energy, can solve the problems of being difficult to cope with rapid changes, poor sensitivity and accuracy, and difficult to promote, and achieve the effects of high signal sensitivity, high direction accuracy, and simple structure

Inactive Publication Date: 2007-06-27
江志
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Problems solved by technology

Due to the instability of the photosensitive characteristic curve of the existing solar tracking sensor, especially the characteristic curve under the influence of temperature, the signal output has a large fluctuation, and it needs to be connected with a feedback processing circuit. The sensitivity and accuracy are poor, and it is difficult to cope with the rapidly changing bad weather
Software automatic control techniques are complicated and difficult to popularize. Solar energy applications need a simpler and more reliable technology for automatic tracking and collection.

Method used

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  • Sun light tracking sensor

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Embodiment Construction

[0024] As shown in Fig. 1, the housing 6 and the light reducing plate 5 form a box, the photosensitive elements 1 and 2 are connected in series and installed on both sides of the middle partition 7 of the box, and the photosensitive elements 3 and 4 are connected in series and installed on both sides of the middle partition 7 of the box. 1, 2, 3, 4 photosensitive elements, produced by a company in Shenzhen, have a linear output characteristic of the photocurrent in the range of illuminance 0 to 200Lux with the change of illuminance, and are stable in the range of -30°C to +85°C A linear photosensitive element that can work stably. The casing 6, the intermediate partition 7 and the light-shielding plate 8 are made of opaque black non-reflective material, and the light-reducing plate 5 is neutral glass with a transmittance of 2‰. Solar tracking sensors can be designed in square, circular and other shapes.

[0025] As shown in Figure 2, the midpoint of the series group composed ...

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Abstract

A sunlight tracking sensor for providing a control signal via amplifier to a sunlight tracking motor is composed of a sunlight attenuating plate, a small box with central bulkhead, and 4 linear photosensitive elements divided into two groups. Two elements in one group are respectively arranged at both sides of central bulkhead in said small box and serially connected. Two signal output lines are led out from the middle points of two serial connections. Two groups are parallelly connected to power supply. Its working principle is also disclosed.

Description

technical field [0001] The invention relates to the technical field of solar energy, in particular to a sunlight tracking sensor of an automatic tracking system. Background technique [0002] The world's energy is tense, and economic development depends on energy. New and renewable energy such as solar energy can play a more important and positive role. The fourth issue of the Proceedings of the Chinese Academy of Sciences in 2005 published an article "Humanity is about to welcome the era of solar energy - He Zuoxiu and Chen Liquan", introducing that the bottleneck in the development of solar heat collection and solar power generation is the complex structure and high price of the solar tracking and concentrating system. Professor Chen Yingtian from the University of Science and Technology of China uses the new tracking and concentrating principle and technology, and the system operation is completely controlled by software to automatically develop a solar power generation e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/38F24S50/20
CPCY02E10/47F24S50/20
Inventor 江志
Owner 江志
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