What is Magnetoresistivity and Magnetoresistors?

Magnetoresistivity is the phenomena of change of resistivity of some metals and semiconductor when it is exposed to external magnetic field. This phenomenon is observed at low temperature. The material which possesses magnetoresistivety are called Magnetoresistors. Magnetoresistivity is observed due to lengthening of path of moving electron when it experiences a force due to external … Read more What is Magnetoresistivity and Magnetoresistors?

Hall Effect Transducer – Definition, Working and Application

Definition: Hall Effect Transducer is a device which is used for the measurement of magnetic field strength. This transducer uses a conducting strip to convert magnetic field into proportional potential difference across the opposite faces of strip using Hall Effect. Working Principle: The working principle of Hall Effect Transducer is based on Hall Effect. Hall … Read more Hall Effect Transducer – Definition, Working and Application

Current Commutated Chopper Explanation

Current Commutated Chopper is a type of chopper in which commutation of thyristor used in the circuit take place due to oscillatory current through it. This article explains current commutated chopper along with its circuit diagram, working principle and various waveforms. Circuit Diagram: The circuit diagram of a current commutated chopper is shown below. In … Read more Current Commutated Chopper Explanation

Piezoelectric Transducer

Definition: A transducer utilizing piezoelectric element to convert mechanical motion into electrical signal is called a piezoelectric transducer. This transducer works on the principle of Piezoelectric Effect. It is an active transducer. Piezoelectric Material and Piezoelectric Effect: A piezoelectric transducer uses a piezoelectric material as a transduction element. A piezoelectric material is one in which … Read more Piezoelectric Transducer

Capacitive Transducer

This article explains the definition and working principle of a Capacitive Transducer. Apart from this, Advantage & Disadvantage and application of Capacitive Transducer are also discussed in detail. Definition: Capacitive Transducer is a device which changes its capacitance with change in the physical phenomena to be measured. It is a passive transducer which required external … Read more Capacitive Transducer

Different Types of Transducers

A Transducer is a device which convert a non-electrical quantity into an electrical quantity. It comprises of a detecting / sensing element and a transduction element. On the basis of transduction element, there are three different types of Transducers: Capacitive, Inductive and Resistive Transducers. Apart from this, transducers are classified into following types: Primary and … Read more Different Types of Transducers

Transducer – Definition, Working, Components and Application

Definition: A Transducer is defined as a device which converts one form of energy into other. The broad definition of a transducer includes devices which converts mechanical forces or physical changes into a proportional electrical signal. This essentially means that the input of transducer may be physical changes and output is electrical signal. The output … Read more Transducer – Definition, Working, Components and Application

Thermocouple Explained

This article outlines the definition, construction, working principle, material selection, advantage and disadvantage of a thermocouple. Definition: Thermocouple is a combination of two different metallic strips joined together in such a way to form a loop. When the two junctions are kept at different temperatures, there is an electric current in the loop and an … Read more Thermocouple Explained

Voltage Commutated Chopper Explained

Voltage commutated chopper is one of the simplest and earliest chopper circuit. This chopper is generally used in high power circuit where load fluctuation is not very large. This chopper is also known as Parallel Capacitor Turn Off Chopper, Impulse Commutated Chopper or Classical Chopper. Working Principle of Voltage Commutated Chopper: The working principle of … Read more Voltage Commutated Chopper Explained