In order to transmit a large number of signals from one location to other, multiplexing is used. Communication channels are costly so it is not economical to use separate channel per signal. Signals can be transmitted over a single communication channel by either dividing the time slots between various signals and transmitting it in turns … Read more
An Instrumentation amplifier is a kind of differential amplifier with additional input buffer stages. The addition of input buffer stages makes it easy to match (impedance matching) the amplifier with the preceding stage. In other words, we can say that the differential op-amp circuit providing high input impedances with ease of gain adjustment through the variation … Read more
Radioactive materials are used in nuclear power plants to generate electricity. These radioactive materials emit nuclear radiation. The radiation consists of alpha, beta, gamma and neutrons particles. These particles that detected by an instrument called radiation detector such as Geiger Muller counter, Ionization chamber, Scintillation counter, etc. Types of Radiation 1. Alpha Particles It is … Read more
A scintillation counter is an instrument for detecting and measuring ionizing radiation similar to Geiger Muller counter and ionization chamber. It uses excitation effect of incident radiation on a scintillator material and detecting the resultant light pulses. Scintillation crystals are those which produce a brief flash of light each time they are struck by an … Read more
The ionization chamber is used for detecting nuclear radiations. It is similar to Geiger Muller Tube as we discussed in the previous article. There is also another type of radiation detector i.e. scintillation counter that we have discussed in another article. The ionization chamber consists of a metal cylinder (acts as a cathode) sealed at … Read more
Magneto-Strictive Transducers A magneto-striction transducer is a device that is used to convert mechanical energy into magnetic energy and vice versa. A change in mechanical stress of a ferromagnetic material causes its permeability to change. This phenomenon is called as Joule effect. The reverse process of Joule effect is called as magneto-striction or Villari effect. … Read more
Write a MATLAB program which should include a prompt for entering the temperature finding out the resistance of the RTD (Resistance temperature detector) for the entered from the given data. performing linearization about the entered temperature point. Program %Program Code for finding Resistance of the RTD %provided by electricalvoice.com clc clear all p=[90:5:130]; q=1.1*p+470; r=[85:0.1:135]; s=1.1*r+470; … Read more
Battery Cell A cell is the smallest, packaged form a battery can take and is generally on the order of one to six volts. Battery Modules A module consists of several cells generally connected in either series or parallel. Battery Packs A battery pack is the assembled by connecting modules together, again either in series … Read more
Servomechanism It is a feedback control system in which a controlled variable or the output is a mechanical position or its time derivatives like velocity and acceleration. Servomotors have two main classifications based on servomechanism i.e. 1. DC Servomotors Armature controlled DC motor Field Controlled DC motor 2. AC Servomotors 1. DC Servomotors DC ServoMotor … Read more
In case of block diagram reduction diagram, there is no standard procedure for reducing the block diagram to evaluate its transfer function. Also, the block diagram reduction technique is tedious and is difficult to choose the rules to be applied for reduction. In order to avoid such problems, the block diagram is converted to signal … Read more