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Title: The Use Of Fiber Optic Controls In Aerial Lifts
Author: William K. Holmes
Source: American Gas Association 1988
Year Published: 1988
Abstract: Frequently, aerial-man lifts operate in close proximity to high voltage power lines, creating a potential hazard to personnel in the platform (see Figure I). For the safety of personnel, a control system was developed that had controls at the ground, controls at the platform. The control system was designed to move and position the tower platform accurately and reliably without overshoot. The control system, developed by Hi-Ranger, Inc of Waukesha, WI, uses state-of-the-art electronics as well as electro-hydraulic technology to control aerial lifts. The system transmits fiber optic control signals from the platform. These fiber optic signals are transmitted in the form of light pulses, which arc first interpreted and then signal the machines electro-hydraulic lower control valve to operate the respective functions.

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