Videoendoscopy can also be used to examine distant rooms within larger tombs or passages too narrow for researchers to fit through. If only a small opening exists, the endoscope can be introduced directly. There will be situations in which the space to be explored is large, and simply passing the VE into that space will not allow adequate visual documentation. In this case, an alternative approach can be adopted. The VE can be attached to a remote control vehicle and directed from outside the room or tomb (Figure 4.39). The VE of choice would need to be an industrial VE, which is available up to 60 ft in length. The disadvantages of this application would include the necessity of a reasonable opening for the remote-operated vehicle that can be of various sizes but is often at least approximately
4 in. (10.16 cm) high by 6 in. (15.25 cm) wide. The power of the vehicle would need to be such that the drag of the trailing VE would not stall the vehicle. Samples can be drawn from the remote target locations through the VE and under VE visualization. Soil and air samples can be taken. With the VE images, preexcavation planning can be developed as well as conservation preparation.
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