Probe rotational adjustment

Figure 1.3. Rotational adjustments ofthe probe. See text.

Moveable throat armor is used for additional control. Hanging plates or horizontally adjustable guides are used to adjust the throat diameter for each charge, thus modifying how the layers are formed in the furnace. Bell-less tops (Fig. 6b) provide even greater flexibility, as both the angle and the rotation speed of the rotating chute may be adjusted. Many furnaces use probes, radar, or laser devices to provide feedback on burden distribution. 

Modern Raman spectrometers allow scanning of a surface up to A4 size, with XY translation stage and fine spatial adjustment to allow the operator to align the laser probe onto samples as small as 5 pm in diameter. Sample selection is assisted by the use of an integral video microscope with a rotating turret that can be fitted with up to four objective lenses to provide on-screen magnification of up to 500 X. 

Fig. 2M The electrochemical pump oelL (a) A monopolar cell for production of metal powdery. (After, Jansaon, R, E. W, and Ashworth, O A., (1977) J, Appt. EUctr0chem.j 7, 309). (b) Bipolar rotor celt for dectrosynthe jj. (After Jansson, R. E. W. Marshall, R. h and Rizzo, J. E. (1978) J, Appl Ekctrochem. 8i. 281). (c) An improved version of (b) which incorporates facilities for adjustment of the rotor position, a reference electrode probe and enhanced mass transport. The bipolar rotor has a diameter of 10 cm and rotates at 2800 rev min ...

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