Dielectric heating, also known as capacitive heating or radiofrequency (RF) heating, is a process in which non-conductive (dielectric) materials are heated by applying an alternating electric field. This heating occurs due to the molecular polarization of the dielectric material when subjected to a high-frequency AC electric field. It is widely used in industries such as […]
A function generator is an electronic device used to generate electrical waveforms over a wide range of frequencies. It is widely used in the fields of electronics, communications, and testing to create specific signals for testing, calibration, and experimentation. Figure 1: Block diagram of a function generator.
Seam welding is a specialized welding process in which two or more overlapping metal sheets are joined together using a series of overlapping welds, creating a continuous, leak-proof seam. This is achieved using rotating wheel-shaped electrodes that roll over the workpiece while applying pressure and an electric current.
Submerged Arc Welding (SAW) is an automated or semi-automated welding process in which an electric arc is formed between a continuously fed electrode and the workpiece. The process is conducted under a blanket of granular flux, which prevents contamination, minimizes spatter, and ensures a high-quality weld.
Resistance Welding is a welding process in which heat is generated by the resistance of the workpieces to the flow of electrical current. The process involves applying pressure and passing an electric current through the joint to fuse the materials together. It does not require filler materials or flux.
A fluorescent lamp is a low-pressure mercury-vapor gas-discharge light source that uses fluorescence to produce visible light. It is widely used in various applications due to its efficiency, durability, and cost-effectiveness.
A Pitot tube is a commonly used variable head, fluid velocity measuring device. It is also called as Pitot static tube or air speed indicator (in aircraft). Figure 1: Pitot Tube.
What is Pitot Tube? Working Principle, Diagram, Construction, Advantages & Applications Read More »
A turbine flow meter is a device used to measure the flow rate of a fluid (liquid or gas) by converting the kinetic energy of the fluid into rotational motion of a turbine. The flow rate is proportional to the rotational speed of the turbine. Figure 1: Turbine Flow Meter.
The McLeod gauge is used for measuring pressures ranging from 0.01 micron to 1 mm of Hg. Figure 1: McLeod Gauge.
What is McLeod Gauge? Working Principle, Diagram, Construction & Advantages Read More »