Device for testing response time of photoelectric radiation sensor
A radiation sensor and response time technology, applied in the field of sensor detection, can solve the problems of expensive equipment, no effective special equipment, difficulty in applying photoelectric radiation sensor for daily inspection and calibration work, etc., and achieve the effect of simple and convenient operation and compact structure
Active Publication Date: 2016-05-04
航天新气象科技有限公司
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[0006] However, the response speed of the photoelectric radiation sensor is extremely fast, and its response time is usually measured in microseconds or even nanoseconds. The sampling frequency of the current electrical measurement equipment is far from enough to support the detection of such a short time response characteristic. Other applications in photoelectricity The relevant experimental methods of device performance testing may not be able to adapt to the performance indicators of photoelectric radiation sensor products, or the equipment is expensive and the experimental operation is complicated, so it is difficult to apply to the daily inspection and calibration of photoelectric radiation sensors. No valid dedicated equipment
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[0030] The present invention will be further described below in conjunction with specific drawings and embodiments.
[0031] As shown in the figure, the photoelectric radiation sensor response time testing device in the embodiment is mainly composed of a box body 1, a protective cover 2, an incident optical system 3, a detection door 4, a controller 5, a chopper 6, a sensor fixture 9 and a slide Rail system 10 and so on.
[0032] Such as Figure 1~Figure 6 As shown, a protective cover 2 is installed on the top of the box 1, the incident optical system 3 is installed on the protective cover 2, and the incident optical system 3 is used to strengthen the light source signal; the chopper 6 is arranged in the box 1, The chopper 6 is used to convert the constant light source signal into an alternating incident light source signal. The chopper 6 is mainly composed of a bracket 6.1, an optocoupler 6.2, a chopping plate 6.3 and a motor 6.4. The bracket 6.1 is installed on the box body...
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The invention relates to a device for testing response time of a photoelectric radiation sensor. The device comprises a box body, a chopper, and a controller; the chopper is arranged inside the box body and is used for converting a constant light source signal into an alternate incident light source signal; a supporting frame in the chopper is installed on the box body, a motor is installed on the supporting frame, and a chopper piece is fixedly installed on an output shaft of the motor; the chopper piece is provided with uniformly distributed light transmission holes therein which are located within an optical coupler receiving surface; the optical coupler is installed on the supporting frame and is used for collecting the frequency of the alternate incident light source signal during the rotation of the chopper piece and transferring the frequency to the controller; the space in front of the chopper in the box body is set as a test cabin, the photoelectric radiation sensor is placed inside the test cabin and under the chopper piece; the controller is installed under the test cabin, and the controller is provided with a chopper drive, a control circuit and a high-frequency signal test circuit therein. The device provided by the invention fills up a technology gap of measurement of photoelectric radiation sensor response time, and plays a great role in sensor research and development and test.
Description
technical field [0001] The invention relates to a photoelectric radiation sensor response time testing device, which belongs to the technical field of sensor detection. Background technique [0002] Solar radiation is the most fundamental energy of atmospheric movement, and the earth-atmosphere system itself emits infrared radiation energy all the time. Therefore, the measurement of the Earth's surface radiation budget is the basis for understanding the Earth's climate system and the impact of humans on climate change. With the deepening understanding of global climate change on human life and survival issues, and the development and utilization of clean energy including solar energy, the importance of solar radiation measurement has become increasingly prominent. [0003] There are many methods for radiation measurement. In solar radiation measurement, the most widely used radiation sensors are pyroelectric radiation sensors and photoelectric radiation sensors. The former...
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IPC IPC(8): G01R31/26
Inventor 徐毅刚庞黎顾平月朱庆春王君科李晖周琦
Owner 航天新气象科技有限公司