Design and Development of Airspeed Indicator (ASI)

Author: Neel Mate1, Pratik Shinde2, Shreeom Kangare3, Vilas Gavhane4

Guide: Mr. Vilas Gavhane

College Name: Pune Institute of Aviation Technology

Abstract - The Airspeed Indicator (ASI) is one of the most important instruments used in aircraft for measuring the speed of airflow relative to the aircraft. Traditional ASI systems were primarily mechanical and pneumatic whereas modern aviation systems use digital avionics and electronic pressure sensors for more accurate measurements. This review paper focuses on the study and development of a low cost mock-up of Airspeed Indicator using Arduino UNO and pitot-static principles.

The proposed system uses a Pitot tube and MPXV7002DP differential pressure sensor to measure the pressure difference between dynamic pressure and static pressure. The Arduino UNO processes the sensor output and calculates airspeed using Bernoulli’s Principle. The measured airspeed is displayed in real time on a 16x2 LCD display.

This review paper discusses the evolution of airspeed indicators from mechanical systems to modern digital systems, the working principles of pitot-static systems, embedded system integration and the educational importance of the low cost aviation mock-up models. The paper also highlights the advantages, limitations, applications and future scope of the proposed system.

Keywords: Airspeed indicator, Arduino UNO, Pitot-static system, pressure sensor, aviation instrumentation, embedded systems, Bernoulli’s principle.