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Showing posts from April, 2020

Why Touch Screens Only Respond to Fingers: The Science Behind the Sensitivity

  I. Introduction Touch screen technology enables direct interaction with devices through touch. Using either capacitive or resistive methods, these screens detect user input, translating it into commands. Widely used in smartphones, tablets, and kiosks, touch screens offer intuitive navigation, eliminating the need for physical buttons and enhancing user experience across various applications. Understanding how touch screens work is crucial for users and developers alike. It enhances user experience by ensuring effective interaction, informs choices in device selection, and guides troubleshooting. For developers, knowledge of touch technology is vital for creating intuitive applications and improving interface design, ultimately leading to greater user satisfaction. This blog aims to explore why touch screens predominantly respond to fingers, delving into the science behind touch sensitivity. By examining the principles of capacitive and resistive technology, we will uncover the

Regenerative braking (How does it work) // seminar topic // Tutorial

What is regenerative braking? People of 20 th century are more realistic and they don’t believe in saving anything rather treat expense as the investment. People have started thinking of using the bio waste as the source of energy, extraction of fuel from plastic, energy from noise and so on.   The regenerative braking system is also an evolution of the same. Every time we step on to our automobile brakes, energy gets wasted. As per the law of conservation of energy, energy can not be created nor be destroyed. So when our car slows down, the kinetic energy that was propelling it forward gets transformed to some other form. Most of it simply dissipates as heat and becomes useless, which could have been used to do work, is essentially wasted. This is not limited to the automobiles only but may also be equipped with industrial fork lift, trams, trains etc. In most automobiles it's the inevitable byproduct of braking and there's no way you can drive a vehicle

Pressure measurement, Pressure transducers, Lecture Note on Pressure transducers

Introduction: The pressure exerted by a static fluid depends only upon the depth of the fluid, the density of the fluid, and the acceleration of gravity. Mathematically,  P = ρgh Static and Dynamic Pressure:   Static pressure: At any point in the fluid, the small chunk of fluid experiences the same pressure from all direction and this pressure is called static pressure. Dynamic pressure: In a fluid flow the stagnation of flow results in conversion of kinetic energy into an additional pressure on the surface which is called as dynamic pressure. When a flat plate is kept against the flow, the fluid is stagnated and creates an additional pressure on the plate which is called as stagnated pressure. Stagnated pressure= Dynamic pressure + static pressure Dynamic pressure= Stagnated pressure - static pressure Pressure measuring transducer:  Often pressure is measured by transducing its effect to a deflection through use of a pressurized area and either a gravitational or elastic