Overview of Tank Gauging Technologies
Two types of measurement methods are used for tank gauging: volume or mass based. In a volume based system, level is measured. In a mass based system, the measurement of…
Servo Tank Gauges Working Principle
Tank gauging is the generic name given to the measurement of liquids (product) in bulk storage tanks with the aim of quantifying how much product is in the tank, "gauging…
Serial Communication Data Transmission Modes
Serial Communication Data Transmission Modes means transferring of data between two devices. It is also called communication mode. These modes direct the direction of flow of information. There are three…
Ultrasonic Flow Meters Working Principle
Ultrasonic flow meters operate using difference in time travelled by the two ultrasonic waves is directly proportional to the flow velocity.
Electronics Questions & Answers
1. What is Electronic? The study and use of electrical devices that operate by controlling the flow of electrons or other electrically charged particles. 2. What is communication? Communication means…
Cascade Control Principle
What is Cascade Control? In single-loop control, the controller’s set point is set by an operator, and its output drives a final control element. For example: a level controller driving…
Difference Between RS232 and RS485
RS232 vs RS485 RS232 and RS485 are standards for data cables. To exchange data between nodes on a network, the most commonly used tools are line drivers and receivers. It is…
Stepper Motor Working Principle
Stepper motors are DC motors that move in discrete steps. They have multiple coils that are organized in groups called "phases". By energizing each phase in sequence, the motor will…
How the Matrix Keypad works with a Micro controller?
The matrix is controlled by a micro-controller. For the above 16-button 4x4 matrix, 8 pins of the micro controller will be used. The first 4 pins will be OUTPUTS and…
Basics of Ground Loops
A ground loop is an undesirable current path in an electrical circuit. Ground loops occur whenever the ground conductor of an electrical system is connected to the ground plane at…
