Movable wedge

In contrast to wedge barriers and crash beams, which are typically installed separately from a fence line, gates are often integrated units of a perimeter fence or wall around a facility. Gates are basically movable pieces of fencing that can be opened and... 

In saccharimeiers with double compensation (Fig. 42), the place of the parallel-faced quartz plate H is taken by a second pair of wedges, one (K) stationary and the other (H) movable, having rotations of opposite sign to M and N (and carrying also another vernier and the corresponding scale) the other optical parts correspond with those of saccharimeters with simple compensation. When the zeros of the two scales coincide with those of... 

The most modern oil-film bearings use movable pads, which tilt in order to create, automatically, the optimum wedge shape. They are known as the "tilting pad bearings and are illustrated in Fig. 29-67. 

In a normal newly constructed refining plant, the wedge type stripping machine (fixed type) can be utilized more effectively than the movable type. However, in an old facility like the Kamioka plant, the general layout is not suited for systemized mechanization and the wedge type (fixed type) stripping machine is not well utilized. Therefore, the Kamioka plant developed a movable multi-sheet simultaneous stripping machine in 1981 and used it imtil 1993. The outline of this machine is described below. 

Coherent light shows phase-independent noise. This can be demonstrated by a two-beam interferometer, such as the Mach-Zehnder interferometer shown in Fig. 9.96. The monochromatic laser beam with the mean intensity /q is split by the beam splitter BSi into two partial beams bi and b2 with amplitudes E and E2, which are superimposed again by BS2. The beam b2 passes a movable optical wedge, causing a variable phase shift 0 between the two partial beams. The detectors PDl and PD2 receive the intensities... 

The Babinet compensator is two quartz wedges of opposite sign mounted one above the other. One is fixed, the other movable with a micrometer. Range is 2000 nm. 

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