无损检测手册简介

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scan speeds are possible with a higher low-pass filter value. 五、检查Inspection Procedure A. Put the probe on the inspection surface. B. Balance the instrument. C. Adjust the balance point to 20 percent of the display as shown in Detail VIII. NOTE: Do not adjust the gain. Gain adjustments will make the instrument calibration unsatisfactory. D. Make sure the signal moves horizontally to the left when the probe is lifted off of the part surface.