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尺寸测量选用工具根据客户要求选用，测量方式大致分为两种：一：暗光测量，二：亮光测量。 O -ring size measurement selection tools are selected according to customer requirements. There are two measurement methods: one is dark light measurement, and the other is bright light measurement.
O 型圈的影子。 First, the dark light measurement is simply measuring the shadow of the O -ring. We usually choose a projector for this measurement tool. O 型圈都是测量其外径和内径的尺寸，测量 O 型圈尺寸时，都是以 O 型圈的上、下、左、右四点量出直径。 Generally, O -rings measure their outer and inner diameters. When measuring the size of an O -ring, the diameter is measured at four points: the top, bottom, left, and right of the O -ring. O 型圈外径和内径都适用： The following methods are suitable for measuring the outer and inner diameters of O -rings:
在投影仪上，根据产品的大小调试镜头的倍数大小，将镜头调试清晰。 1. On the projector, adjust the lens multiples according to the size of the product to make the lens clear.
将坐标摆放在 o 型圈的一个边沿，和投影仪的坐标线互相靠拢； 2. Place the coordinates on one edge of the o -ring and move closer to the coordinate line of the projector;
4 、把坐标移到 O 型圈的第二个点上，同样也要把坐标线和 O 型圈的边沿靠拢，再按确认键；以此类推，这样在取完 O 型圈的四点后，一个直径就测量出来了。 3. Find the icon marked with a circle on the projector, click this icon, and then press the OK key, and a point will be found; 4. Move the coordinate to the second point of the O -ring, and also move The coordinate line and the edge of the O -ring are moved closer together, and then the confirmation key is pressed; and so on, after taking four points of the O -ring, a diameter is measured.
O 型圈 本身。 Second, the light measurement, that is, measuring the O -ring itself. We generally use optical image measuring instruments for this measurement tool. The method is basically the same as that of the projector.
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