Encyclopedia Knowledge

What is an Watt Hour Meter? Watt-Hour Meter Definition A watt-hour meter is defined as a device that measures and records the electrical power passing through a circuit over a period of time. Tampering and Security A common tampering method involves attaching a magnet to the outside of old energy me

What is Bimetallic Strip Thermometer? Bimetallic Strip Thermometer Definition A bimetallic strip thermometer is defined as a device using two bonded metal strips with different thermal expansion rates to measure temperature. Working Principle The basic structure and principle of a bimetallic strip t

What is an Radiation Pyrometer? Radiation Pyrometer Definition A radiation pyrometer, a non-contact temperature sensor, measures temperature by detecting an object’s naturally emitted thermal radiation. The radiation depends on the object’s temperature and emissivity—the ability to emit heat compare

What is a First Order Control System? First Order Control System Definition A first order control system uses a simple type of differential equation to relate inputs and outputs, focusing on the first derivative of time only. The transfer function (input-output relationship) for this control system

What is Field Oriented Control? Field Oriented Control Defined Field oriented control is a sophisticated technique that manages AC induction motors by independently controlling torque and magnetic flux, similar to DC motors. Working Principle of Field Oriented Control The field oriented control cons

Digital Data Definition Digital data in control systems consists of discrete or sampled data that represents continuous signals in a digital format. Sampling Process Sampling is the conversion of analog signals to digital signals using a sampler, which switches ON and OFF. The sampling process conve

Signal Flow Graph Definition A signal flow graph simplifies control system diagrams by using nodes and branches instead of blocks and summing points. Rules for Drawing Signal Flow Graph The signal always travels along the branch towards the direction of indicated arrow in the branch. The output sign

Transient Response of Control System As the name suggests transient response of control system means changing so, this occurs mainly after two conditions and these two conditions are written as follows- Condition one : Just after switching ‘on’ the system that means at the time of application of an

Block Diagram Definition A block diagram is used to represent a control system in diagram form. In other words, the practical representation of a control system is its block diagram. Each element of the control system is represented with a block and the block is the symbolic representation of the tr

What is State Space Analysis? State Space Analysis Definition State space analysis of control systems is a method to analyze both simple and complex systems using a set of variables to describe their behavior over time. State Space Equations L et us derive state space equations for the system which

Root Locus Technique Defined Root locus in control system is a graphical approach used to analyze the effects of varying system parameters on the stability and performance of a control system. Advantages of Root Locus Technique Root locus technique in control system is easy to implement as compared

Routh Hurwitz Stability Criterion Definition It is a method to determine the stability of a system using the characteristic equation. Hurwitz Criterion Using the characteristic equation, we can create several Hurwitz determinants to determine the system’s stability. The characteristic equation of th