Cognex DS900 Series, Справочная информация

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DS900 Series Sensor Accuracy
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Measurement accuracy varies depending on how accurately the unit is mounted and on the surface
characteristics of the object being measured; it is not possible to specify a guaranteed accuracy value.
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In general, sensor accuracy is improved when:
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Relative measurements are made within a single scene (what is the difference between surface A and
surface B) are more accurate than absolute measurements (how far is surface B from the sensor).
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The sensor is rigidly mounted using the high-accuracy mounting hole.
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The sensor is precisely perpendicular to the surface being measured.
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In general, sensor accuracy is the best at the optical axis.
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In general, sensor range measurements are extremely repeatable, however the accuracy is dependent on how
well the exposure is set.
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DS900 Series Sensor Accuracy