An optical radiation sensor angle response characteristic testing device

Abstract

The invention discloses a test device for the angular response characteristic of an optical radiation sensor, comprising: a monochromatic beam output system, an optical radiation sensor, a position detector, an acquisition controller, a drive module, and a power supply. The monochromatic beam output system is used to output uniform Collimated monochromatic beam; the optical radiation sensor receives the monochromatic beam and generates an optical response signal; the position detector detects the position of the optical radiation sensor and generates a position signal; the drive module drives the optical radiation sensor and the position detector to rotate at multiple angles; The controller collects the optical response signal and the position signal, and generates the test result of the angular response characteristic of the optical radiation sensor according to the optical response signal and the position signal; the power supply is used to provide the optical radiation sensor, the position detector, the acquisition controller and the drive module power supply. The invention adopts a laser light source to replace the traditional broadband light source, has smaller volume, lower power consumption, short warm-up time and low cost.

Description

technical field [0001] The invention relates to the field of sensor performance testing, in particular to a device for testing the angular response characteristics of an optical radiation sensor. Background technique [0002] Both the cosine error and the azimuth error are the angle response error of the optical incident unit. The cosine error is the degree of deviation between the variation characteristics of the hemisphere space of the receiving plane with the zenith angle and the ideal cosine curve. The azimuth error is the hemisphere describing the receiving plane. Inhomogeneity in space as a function of orientation angle. The test of cosine error and azimuth error characteristics is usually realized with the angle measurement control system. Therefore, the test of the cosine and azimuth characteristics is usually also called the angle response (Angle response) characteristic test of the radiation instrument. [0003] The light source systems used in the existing test ...

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Problems solved by technology

[0004] Therefore, the present invention provides a test device for the angular response characteristics of an optical radiation sensor, which overcomes the defects of relatively large volume and power consumption of the test device and relatively long warm-up time of the light source in the prior art.

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