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| Q. |
Which application is ideally suited for two frequency laser interferometer? |
| A. | pitch and yaw measurement |
| B. | hole diameters |
| C. | thickness measurement |
| D. | measurement of edge locations |
| Answer» A. pitch and yaw measurement | |
| Explanation: 2 frequency laser interferometer techniques are ideally suitable for measuring linear positioning, pitch, yaw and straightness in two planes. the two- frequency laser head provides, one frequency with a p polarisation i.e. m (measuring) beam and another frequency with an s polarisation | |
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