Definition: The analogue instrument is defined as the instrument whose output is the continuous function of time, and they have a constant relation to the input. The physicals quantity like voltage, current, power and energy are measured through the analogue instruments. Most of the analogue instrument use pointer or dial for indicating the magnitude of the …
The Thermistor and the RTD both are the temperatures measuring device. The major difference between the RTD and the Thermistor is that the RTD is made of metal, whereas the semiconductor material is used for Thermistor. The other differences between the Thermistor and RTD are explained below in the comparison chart. As the Thermistor is …
Definition: The power factor meter measures the power factor of a transmission system. The power factor is the cosine of the angle between the voltage and current. The power factor meter determines the types of load using on the line, and it also calculates the losses occur on it. The power factor of the transmission …
One of the significant difference between the sensor and the transducer is that the sensor senses the physical changes occur in the surrounding whereas the transducer converts the physical quantity or nonelectrical into another signal or electrical signal. Some other differences between the sensor and transducer are explained below in the comparison chart. The transducer …
Definition: The instrument which measures the storage factor or quality factor of the electrical circuit at radio frequencies, such type of device is known as the Q-meter. The quality factor is one of the parameters of the oscillatory system, which shows the relation between the storage and dissipated energy. The Q meter measures the quality …
Definition: The capacitive transducer is used for measuring the displacement, pressure and other physical quantities. It is a passive transducer that means it requires external power for operation. The capacitive transducer works on the principle of variable capacitances. The capacitance of the capacitive transducer changes because of many reasons like overlapping of plates, change in …
Definition: The Piezoelectric transducer is an electroacoustic transducer use for conversion of pressure or mechanical stress into an alternating electrical force. It is used for measuring the physical quantity like force, pressure, stress, etc., which is directly not possible to measure. The piezo transducer converts the physical quantity into an electrical voltage which is easily measured …
Definition: The hall effect element is a type of transducer used for measuring the magnetic field by converting it into an emf. The direct measurement of the magnetic field is not possible. Thus the Hall Effect Transducer is used. The transducer converts the magnetic field into an electric quantity which is easily measured by the …
Definition: The transformer which senses the angular displacement of the conductor is known as the Rotary Variable Differential Transformer or RVDT. It is the type of electromechanical transducer which gives the linear output proportional to the input angular displacement. The circuit of RVDT is shown in the figure below. The working of the RVDT is …
Definition: The Linear Variable Inductive Transformer converts the linear displacement into an electrical signal. It works on the principle of mutual induction, i.e., the flux of the primary winding is induced to the secondary winding. The output of the transformer is obtained because of the difference of the secondary voltages, and hence it is called a differential …
