Electrical Transducer: A transducer is defined as a device that receives energy from one system and transmits it to another, often in a different form. Broadly defined, the transducer is…
Null Type Recorder: These Null Type Recorder Working Principle of self-balancing or null conditions. When an input is given to the measuring circuit of the recorder from a sensor or transducer,…
Taut Band Instrument: The Taut Band Instrument utilizes the same principle as the D'Arsonval movable coil and fixed magnet. The primary difference between the two is the method of mounting…
Practical PMMC Movement: The basic Practical PMMC Movement (also called a D'Arsonval movement) offers the largest magnet in a given space, in the form of a horse-shoe, and is used…
Dynamics of Synchronous Machine: The Kinetic Energy of the Rotor at Dynamics of a Synchronous Machine is where J = rotor moment of inertia in Kg-m2 ωsm = synchronous speed in…
Speed Governor Dead Band and its Effect on AGC: The effect of the Speed Governor Dead Band is that for a given position of the governor control valves, an increase/decrease…
Two phase AC Servo Motor: For a low-power (a few hundred watts) control application, a balanced Two phase AC Servo Motor is ideally suited as it can be driven by…
Dynamic Modelling of Induction Motor: In general, the mechanical time-constant for any machine is much larger than the electrical time constant. Therefore, the Dynamic Modelling of Induction Motor can be…