from The Century Dictionary.
- In optics, having two surfaces plane and parallel to each other: as, a plane-parallel plate of glass.
from the GNU version of the Collaborative International Dictionary of English.
- adjective (Optics) Having opposite surfaces exactly plane and parallel, as a piece of glass.
Sorry, no etymologies found.
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Abstract: A generalized form of the Bennett pinch is studied in both cylindrical geometry and plane-parallel geometry.
The parquetry-fillets are pieces of wood made from raw slats, rectangular, with key and slot and with plane-parallel top and bottom surfaces.
When clamping the workpieces take care to ensure that all workpieces are positioned next to each other plane-parallel and well aligned.
This requires plane-parallel surfaces and relatively little chip removal due to the low clamping force.
· Be sure to align the workpiece exactly plane-parallel.
O. Lummer on interference spectroscopy and heat radiation, the influence of which was shown in von Laue's dissertation on interference phenomena in plane-parallel plates.
For the calibration we use a plane-parallel calibration block which has a known thickness and must be made of the same material as the test object. (iii) Locating - reflectors: To test the workpiece we couple the probe onto its surface.
If this has two plane-parallel surfaces, the sound pulse will be reflected on the surface opposite to the probe and return to it.
In order to protect the crystals against damage they are pasted on a plane-parallel or wedge-shaped plastic delay block; the shape of the delay block depends on whether the sound wave is to be transmitted perpendicularly or angularly into the workpiece to be tested.
If the pulse that passes through the workpiece has plane-parallel surfaces then the reflected pulse returns to the probe and generates a signal (backwall echo) on the CRT-screen of the instrument.
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