Two-direction scale
Measure known spans along X and Y separately instead of assuming identical scale in both directions.
Two-axis glass scales for checking horizontal and vertical image scale, axis alignment and magnification.
An XY stage micrometer places two defined scales at the specimen plane. It provides physical references for image scale in both directions and for checks of the relationship between the axes.
Choose it when both image directions must be checked under the same optical setup. Distributed grids are preferable when the task requires local scale across a wide field.
Measure known spans along X and Y separately instead of assuming identical scale in both directions.
Use the defined cross and axis geometry to check orientation. A short central scale does not establish accuracy across the whole field.
| Choice | Selection basis |
|---|---|
| Scale span | Choose an observable span long enough for repeatable endpoint judgement within the usable field. |
| Division spacing | Finer divisions are useful only if adjacent marks remain separable at the chosen objective and camera sampling. |
| Reported intervals | Identify nominal dimensions, measured intervals and any uncertainty or traceability required for the result. |
The stage scale is at the specimen plane. An eyepiece reticle is inside the viewing optics and requires a calibrated conversion to specimen length.
Choose spans and interpret measurement recordsTwo-axis scale and alignment checks.
Inspect selected intervals along both axes, their intersection and orthogonality. Local interval error and accumulated span error are different quantities.
The supplied item is the selected patterned glass reference. The order identifies the measured intervals and accompanying measurement records.
XY stage micrometers supply known graduations in two directions at the specimen plane.
Check each axis separately and record scale, axis direction and optical configuration. A single-axis check does not establish both scales.
X/Y intervals, scale lengths, origin, orthogonality, format and calibration record.
Yes, when two-axis scale is needed. Separate checks can reveal directional differences introduced by sampling or configuration.