Helmet-Mounted Displays (HMDs) need variable transmission technology-equipped goggles, spectacles, and visors. Most HMDs currently do not allow the pilot to alter the transmission level of a flight visor as the light level varies from high to low. In situations where HMDs are not required, sunglasses are commonly worn, but their use becomes impractical when HMDs are required. Using electrochromic technology, a variable transmittance visor that can be adjusted manually or automatically might be the solution for the pilot. Adjusting the visor’s absorption level with an electric field enables a range of brightness adjustments. Applying a voltage to the visor alters the optical density continuously from transparent to opaque or vice versa. However, the BH1750 digital light sensor will assist in determining the required voltage for the visor’s transition from clear to dark. Multiple layers will compose the visor, including two external layers of transparent conductive films, a counter electrode layer, an electrolyte layer, and an electrochromic electrode layer. In addition, the principal components of the visor are Ag nanorods coated in tungsten oxide (WO3), as this material will cover the visor and provide an immediate change from transparent to dark. Numerous factors must be considered before implementing this technology into the visor, such as the light sensor’s operating conditions and the required amount of energy. Additionally, the design of the visor must include a current path to ensure that the visor shifts properly.
Design and Development of Advanced Pilot’s Helmet Visor by Using Electrochromic Technology
International Conference on Aeronautical Sciences, Engineering and Technology ; 2023 ; Muscat, Oman October 03, 2023 - October 05, 2023
2023-12-26
11 pages
Article/Chapter (Book)
Electronic Resource
English
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