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我们使用的紫外线振子示波器,也称光线示波器,在换振子对光后,发现光点不动,且比原来宽。经检在电路、电流大小和开关正常,检查磁性、吸螺丝刀的吸力一如既往,检查光路也没有异常,实在查不出问题。经人指点,振子反射的光点有实像和虚像之分,虚像是不动的。经复阅振子结构图,见反射镜前面有一片盖玻璃,是凸透镜,轴线有不大的仰角。因而体会,所谓实像是反射镜的反光点,虚像是盖玻璃的反光点。盖玻璃是固定的,反射的光点当然不动。盖玻璃是凸表
We use the UV oscillator oscilloscope, also known as light oscilloscope, after the oscillator in the light, found that the spot does not move, and wider than the original. The test in the circuit, the size of the current and the switch is normal, check the magnetic suction suction screwdriver, as always, check the optical path is no exception, it can not detect the problem. After being instructed, the vibrator reflected light points have real and virtual images of the points, the virtual image is not moving. After the review of the oscillator structure, see the mirror in front of a piece of cover glass, is a convex lens, the axis of elevation is not large. Thus realize that the so-called real reflection mirror is the reflection point, virtual image is covered glass reflective point. Cover glass is fixed, of course, the reflected light spot does not move. Cover glass is convex table