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What is PCB and how does it work?

 A Printed Circuit Board (PCB) is a fundamental component in electronic devices, providing the physical structure to mount and connect electronic components. The process of working with a PCB involves designing, fabricating, assembling, and testing. Below is a simplified guide on how to work with a PCB: 1. Designing a PCB PCB design is the first and crucial step. It involves creating a blueprint of the electrical circuit that will be etched onto the board. Choose PCB Design Software : Common tools include KiCad , Eagle , Altium Designer , or EasyEDA . Schematic Diagram : Create a schematic that shows how components are connected (e.g., resistors, capacitors, ICs). Component Placement : In the PCB design software, place components on the board. The design should consider the physical size and pin connections of the components. Routing : This is the process of connecting the components via traces (the electrical pathways). Ensure proper routing to minimize interference and avoid s...

Classification of pumps and their working principles | TECHNOLOGY FACTS

positive displacement pumps Positive displacement pumps are a type of pump that operates by using mechanical action to displace fluid from an inlet to an outlet. These pumps are designed to move a fixed amount of fluid per cycle or revolution and are known for their ability to generate high pressures, handle viscous liquids, and maintain a consistent flow rate. They are widely used in various industries, including oil and gas, chemical processing, food and beverage, pharmaceuticals, and water treatment. Here are some key characteristics and types of positive displacement pumps: Principle of Operation: Positive displacement pumps work by trapping fluid in a cavity and then forcing it out to create flow. The cavity expands and contracts as the pump's mechanism moves, thereby generating the desired fluid displacement. Fixed Displacement: These pumps move a fixed volume of fluid per cycle, regardless of the system pressure. This characteristic makes them suitable for applications requi...

How does a fan work step by step?| What is the operating principle of a celling fan? | TECHNOLOGY FACTS

How does a fan work mechanically.  How celling fan work Ceiling fans work by utilizing the principles of aerodynamics and mechanical engineering to circulate air in a room, creating a cooling effect through increased air movement. Here's how a typical ceiling fan operates: Motor: The fan's motor is housed within the fan's motor housing, usually mounted to the ceiling. This motor is responsible for turning the blades. Blades: Ceiling fans typically have 3 to 5 blades attached to a central hub. These blades are angled to efficiently move air. The angle of the blades is designed to push air downwards when rotating in a counterclockwise direction (as viewed from below), creating a cooling breeze in the room. In some cases, ceiling fans have reversible motors, allowing the blades to rotate in a clockwise direction to pull air upwards, which can be beneficial in cooler months to help distribute warm air trapped near the ceiling. Rotation: The motor rotates the blades when electri...

Natural Gas Engines | TECHNOLOGY FACTS

  Natural Gas Engines          Natural gas Engines, also known as compressed natural gas (CNG) engines or liquefied natural gas (LNG) engines. are internal combustion engines that operate using natural gas as their primary fuel source. Natural gas Engines are used in a variety of applications, including transportation, power generation, and industrial process. Here's an explanation of how Natural gas Engines work. Natural Gas Fuel System Engine Ignition System  How Natural Gas Engines Work? 1. Fuel Delivery In compressed natural gas (CNG) engines, gaseous natural gas is delivered from storage tanks to the engine's intake manifold. In liquefied natural gas (LNG) engines, the fuel is stored as a cryogenic liquid and converted back in to a gas before entering the engine. 2. Air mixing     The Natural gas is mixed with air in the intake manifold to create a combustion air fuel mixture. 3.Compression      In compression ignition Eng...