对陷阱探测器的面响应均匀性进行了测量。在主要灵敏面内 ,面响应均匀性测量结果的重复性达到 4×10 -5。给出了对 S1337、S12 2 7等 4种不同硅光电二极管构成的陷阱探测器的面响应均匀性的测量结果。测量结果表明 ,不同类型探测器之间面响应不均匀性存在显著差异 ,其中 S1337构成的陷阱探测器的面响应均匀性最好。正确选择合适类型探测器 ,对保持和传递低温辐射计达到的很低的不确定度非常重要。 The surface response uniformity of the trap detector was measured. In the main sensitive surface, the uniformity of surface response measurement repeatability reached 4 × 10 -5. The measurement results of the surface response uniformity of trap detectors composed of four kinds of silicon photodiodes such as S1337 and S12 2 7 are given. The measurement results show that there are significant differences in surface response inhomogeneity between different types of detectors, of which the trap detector made of S1337 has the best uniformity of surface response. Proper selection of the right type of detector is very important for the low uncertainty of the hold and transfer of the pyrometers.