#device

• Aircraft interphone — A specialized acoustic intercommunication device or system used in the past aboard military or civil aircraft to allow clear dialogue between crew members (pilots, navigators, gunners). The device was structurally designed to filter and isolate the deafening noise produced by engines and external airflow, facilitating the transmission of vocal waves through acoustic tubes or primitive microphones with shielded headphones.
• Avometer — A portable measuring instrument, analog or digital, utilized in electrical engineering and electronics to determine the numerical values of the main electrical quantities within a structural circuit. Its name is an acronym formed from the fundamental measurement units it records: Amperes (current intensity), Volts (electrical voltage), and Ohms (electrical resistance); multimeter.
• Axograph — An apparatus, measuring instrument, or technical recording device utilized in mechanics and industrial design to graphically trace, measure, and precisely monitor the oscillations, geometric deviations, or angular movements of a rotating shaft during machinery operation. This structural precision instrument transforms parasitic mechanical vibrations into clear diagrams, allowing engineers to execute delicate calibrations and prevent the degradation of complex gears.
• Backspace — A specialized key on a computer keyboard or typewriter, used to delete the character immediately preceding the text cursor and to move the cursor back by one position. In a structural software sense, this key transmits a specific control code (ASCII 8) that enables rapid text editing and error correction during typing.