Perpendicularity

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Perpendicularity

Two lines are said to be perpendicular if they form a right angle; in space, such lines need not necessarily intersect. A line l and a plane p are perpendicular if l is perpendicular to every line lying in p. Two planes are perpendicular if they intersect to form a right dihedral angle. Orthogonality is a more general, and sometimes synonymous, concept of perpendicularity.

References in periodicals archive ?
The ability to achieve the requested perpendicularity tolerance is affected by the condition of the workpiece before honing, amount of stock to be removed, machine, fixturing and honing tool.
The application of PT zone is recommended where the variation in perpendicularity of threaded or press-fit holes could cause fasteners to interfere with mating parts.
Perpendicularity was ensured by adjusting the transducer head until the brightest reflection lines from the various corneal layers were observed in real time.
r] = b/a 7 Circular Variance [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] 8 Rectangularity r = A/ab 9 Closure [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] 10 Curvature [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] 11 Perpendicularity [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] 12 Signed Perpendicularity [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] 13 Angles after Equidistant sin([alpha]), cos([alpha]) Resampling (6 line segments) ID Note 0 1 [S.
Excessive tool wear produced changing tool geometry and increased cutting forces, which promoted elastic deformation of casting with increasing tilt and destroying required tolerance on perpendicularity ("tilt").
By contrast, the permeation path of sample without CP was more tortuous because its interfacial area perpendicularity to the permeation direction of small molecules was larger.
Demonstrate an understanding of parallelism and perpendicularity of lines and planes in three dimensions
The company's Mitutoyo RA2100 Roundness Tester makes light work of measurements including cylindricity, concentricity and perpendicularity (as well as other more specialist measurements), added to which, the flexible design of the equipment allows for set-up of an extensive range of different geometries.
Types of Geometric Tolerances Type of Characteristic Tolerance For Form Straightness Individual Flatness Features Circularity Cylindricity For Individual Profile Profile of a Line or Related Profile of a Surface Features For Related Orientation Angularity Features Perpendicularity Parallelism Location Position Symmetry Concentricity Runout Circular Runout Total Runout Tab.
25 dg and perpendicularity of image plane to zenith direction is within 0.
The orthocentric tetrahedron of triangle [8], [7] is a simple construction which gives students a great opportunity for in-depth study of perpendicularity in space and testing of various methods of proof.
The highly controlled runout and concentricity of the body, and their precise 90 degree perpendicularity to the workpiece, ensure a high degree of accuracy.

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