Essays on Inductance

Introduction

Taking measurements may require the conversion of the measured quantity to electrical quantity. Transducers are devices or elements that perform this function by transforming physical quantities such as quantities like sound, light, or temperature into electrical signals like current, voltage, or capacity. Transducers consist of inputs, sensing elements, transduction elements, signal processing, and electrical outputs. The inputs known as the measurands are the quantities, states, or properties that are to be translated into electrical outputs. The sensing elements accurately measure these input energies and sends the information to the transduction elements to be transformed into the desired form. The ...

Introduction

Power quality is an essential factor as far as performance of the electrical machines and equipment are concerned. Quality plays an integral role in ensuring reliability and satisfactory service by improving the transmission and distribution of electric power. In order to serve a huge section of the world with electrical power, quality is paramount in order to reduce losses during transmission and distribution. IEEE defines power quality as the deviation of current and voltage from the ideal to the actual realization. It factors in the concept of ensuring high standard powering and grounding of the electrical equipment for the ...

PURPOSE

This experiment is about the isolation of the three harmonics that is included in a non-sinusoidal waveform. The non-sinusoidal waveform here is a square wave, and the harmonics being isolated are the fundamental, third, and fifth harmonics. The experimental amplitudes and frequencies will be compared to the theoretical computations.

EQUIPMENT

Oscilloscope Digital Multimeter Function Generator COMPONENTS 10 mH Inductor 10 kΩ Resistor

PROCEDURE AND RESULTS

Figure 1. RLC Circuit Diagram

PART A: Obtain the scaling factors

1) Build the circuit shown in Figure 1. Throughout the experiment, connect the input voltage to channel 1 of the oscilloscope. This input voltage is used as a trigger source for the oscilloscope. ...

Abstract

Permanent magnet synchronous motors (PMSM) are a type of motors that have permanent magnets mounted on the rotors instead of the rotor windings. This particular design gives the motor a few advantages over ordinary induction synchronous motors. The magnets attached to the rotor do not require excitation, which reduces the power consumption in PMSM. This gives the motor high operational efficiency and reduces the motor active diameter. PMSM are therefore associated with applications that require high torque but have limited operation space. The permanent magnets suffer from flux leakage and are therefore aligned in a pattern that minimizes flux ...

Business Memo on Wireless Mobile Phone Charging

Abstract This memo analyzes how to achieve a wireless charging system for mobile phones. The goal on wireless charging system is to achieve more convenience in the use of mobile phones. Previous literature concurs that it is possible to achieve a wireless mobile phone charging system. The system works with the electrical principle of mutual inductance to transfer current from the source to the mobile device.

As the use of mobile phones is becoming more popular, people are beginning to worry about the convenience of using such deviances. From the technological front, the use of mobile phones has been ...

Summary

This experiment is about the static calibration of a differential pressure transducer. Test measurements are done to find the range of input and output of the transducer, and to determine the “best-fit” line that models how the voltage reading would equate to the real pressure measurement. The input pressure comes from a hydraulic ram with pressure gauge. The output of the differential pressure transducer is in voltage, and is measured by a digital voltmeter. The input pressure is varied from 0 to 6 bar, and the three voltage readings are recorded for each pressure step value.

Introduction

The differential pressure ...

- Linear and Non-linear devices A linear electrical component is an electrical element that has a linear relationship between current and voltage in a circuit. Examples include resistors, capacitors and inductors. Non-linear electrical elements do not have a linear relationship between the current and voltage. An example is a diode where the current is a non-linear function of the voltage. The load line analysis is a graphical analysis of the characteristics of non-linear electronic circuits to show the constraints that is placed on the non-linear devices by the rest of the circuit. Using a simple diode (a non-linear electronic device) to explain the ...

Introduction

One of the revolutionary inventions in electrical engineering field was Tesla coil. Nikola Tesla invented Tesla coil in 1891. Tesla coil is primarily used to produce high voltage and high frequency alternating current electricity. Tesla coils are capable of producing high voltages better than artificial means of producing the same. “It takes the output from a 120vAC to a several kilovolt transformer and driver circuit and steps it up to an extremely high voltage. Voltages can get to be well above 1,000,000 volts and are discharged in the form of electrical arcs” (UCSC). Very popular in early part of ...