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When a readng is taken from an analog meter, the pinter must be viewed correctly as it is a short distance away from the scale, so if read from one side, an error of several divisions will occur. To avoid this error the meter should be read from a position directly above the pointer. To help avoid this error most meters have a mirror in the scale so that the error may be dicerned more readily.

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15y ago

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Parallax errors in a scale occur when the viewer's perspective causes the measurement to appear inaccurate. This can happen if the viewer's eye is not directly in line with the measurement marking, leading to erroneous readings. To avoid parallax errors, it is important to position the eye directly above the measurement scale when taking readings.

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11mo ago
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Q: What are parallax errors in a scale?
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