ABSTRACT
Boroscopes (also spelled borescopes) are visual inspection tools providing high image quality. They were originally designed for inspecting gun barrels, but currently have many applications in modern technology. They are used to inspect remote or limited access locations, such as drill holes, vessels and chambers, chemical reactors, heat exchangers, process lines, +and much more. Illuminated horoscopes and ber-scopes provide bright, sharp images for visual observations and are camera-adaptable for permanent record keeping. They enable critical internal inspections with speed, safety, and certainty in the eld or on the factory oor. Table 7.1a gives a partial list of applications that speed testing, inspection, and quality control
TABLE 7.1a Sampling of Applications for Which Boroscopes Can Speed Testing, Inspection, and Quality Control
The rigid horoscope operates like a telescope in reverse. A telescope narrows the viewer’s eld of view, in order to look at a wide area in the distance. A horoscope spreads the eld of view for observing a small area.
