Electrical measuring instruments and their uses complete. This revision covers in detail the digital and microprocessorbased instruments. Be able to perform simple electrical measurements of voltage, current, and resistance, as well as more sophisticated, scientific electrical measurements, master handheld and more accurate stationary multimeters and understand their differences, have some knowledge of use of ac signals, ac generators, and an oscilloscope. Power meters are electronic meters intended for measur. Study the safety procedures of the electrical lab 2. The inclusion of an electrical measurement course in the undergraduate curriculum of electrical engi neering is important in forming the technical and scientific knowledge of future electrical engineers. The magnitude of one of the quantity is unknown, and it is compared with the predefined value. An electronic instrument is the one which is based on electronic or electrical principles. Electrical engineers are required to work in hazardous environments near energized equipment.
Study the basic functions of digital multimeter dmm 3. May 5, 2019 electrical measurements and measuring instruments1. For consultation and interpretation of components, devices and electrical and electronic circuit. Such an instrument sounds by outputting an electrical, electronic or digital audio signal that ultimately is plugged into a power amplifier which drives a loudspeaker, creating the sound heard by the performer and listener. Electronic instruments and measurements jones, larry d. Basic electrical engineering tools, instrument, devices. Below is the list of measuring instruments used in electrical and electronic work. Evaluation of the quality of electric voltage in compliance with en 50160 only mc 760umc 760. A guide to united states electrical and electronic equipment. The following is a general procedure for use of test equipment. Electrical instrumentation symbols meters and recorders. The potential difference across the meter when carrying 20ma is 400mv.
List of electrical and electronic measuring equipment wikipedia. Kalsi this revised and upto date edition provides essential understanding of the working principles, operation and limitations of the electronic instruments. Name purpose ammeter ampermeter measures current capacitance meter. These are the devices which uses electrical energy to do work and they covert electrical energy to other form of energiesmetals like co.
Electronic instruments and instrumentation technology. Electrical measurements course introduces the basic principles of all measuring instruments. Electrical measurements and measuring instruments1. The measuring instrument should not affect the quantity to be measured. Bakshi measurements and measurement systems units and standards of measurements errors in measurements and their analysis measuring system fundamentals analog ammeters and voltmeters extension of instrument range analog measurement. There are certain tools they require to carry out their job effectively and safely without causing any harm to themselves and those around them. Use of electrical test equipment test equipment is necessary for determining proper setup, adjustment, operation, and maintenance of electrical systems and control panels.
Electronic measurements and instrumentation pdf notes emi. Electrical measurements pdf notes em pdf notes smartzworld. Electrical and electronics measurements and instrumentation. The instrument to be used is 200a for full scale deflection. Electrical instrumentation symbols, meters and recorders. Chapter 9 describes the construction and use of digital multimeters, and provides an overview of dif. In addition to reading the questions and answers on my site, i would suggest you to check the following, on amazon, as well. Electrical measuring instruments and their uses complete notes. Electronic measurements and instrumentation pdf notes. List of electrical and electronic measuring equipment. Instrumentation and measurement in electrical engineering. Subcommittee 15 electrical and electronic diagrams was formed on april 26, 1964, as a subcommittee of sectional committee yl4standards for draw ings and drafting. Dec 05, 2019 in electrical and electronic technologies, multiple types of instruments are used based on the studies, use cases, and the requirements. Classification of measuring instruments the instrument used for measuring the physical and electrical quantities is known as the measuring instrument.
Bakshi measurements and measurement systems units and standards of measurements errors in measurements and their analysis measuring system fundamentals analog ammeters and voltmeters extension o f instrume nt range analog measurement of power and wattmaters measurement of energy and energy meters measurement of speedfrequency and power factor measurement of resistance potentiometer ac bridges magnetic measurements. Ranges vary from a few tenths volt to a few thousand volts. A course in electrical and electronic measurements and instrumentation a. The pointer of a moving coil instrument gives full scale deflection of 20ma. Both signal generation signal generators, power supplies and signal measurement multimeters, scopes instruments are nonideal. Dc bridges wheatstone bridge, ac bridges kelvin, hay, maxwell. Electrical instrumentation symbols meters and recorders author. However, it should be noted that modern electronic instruments are the. Accuracy, precision, resolution, reliability, repeatability, validity, errors and their analysis, standards of measurement. Download free sample and get upto 48% off on mrprental. E degree from jadavpur university, kolkata in 2009 followed by.
For the purposes of this project electronic musical instruments are defined as instruments that synthesise sounds from an electronic source. Principles of measuring voltage, current and resistance 5. Buy electronic instruments and instrumentation technology by anand, m. The term measurement means the comparison between the two quantities of the same unit. A batterypowered, electronic level indicator was built to aid in mounting wind direction instruments at several elevations on a 365meter tv tower.
Sawhneya course in electrical and electronic measurements and instrumentation. Measurements and instruments and second on electrical and electronic. The innovative electrical measuring instruments from testo stand out due to their extraordinary high level of userfriendliness, setting new standards with intelligent and completely new technology. Classification of electrical instruments electrical tutorials. A guide to united states electrical and electronic equipment compliance requirements scope this guide addresses electrical and electronic consumer products including those that will come into contact with food. How to use oscilloscopes to measure different electrical quantities is also described.
Apr 28, 2018 there are lot of differences between electrical and electronic devicessome of them are electrical device. Electronic measurements and instrumentation read free pdf. To accurately model our systems, we must take nonidealities into account. In electrical, the instruments used to measure the resistance or current, voltage, frequency, flux, power factor, etc. Digital multimeters with automatic measurement parameter. The electrical system normally depends upon a mechanical meter movement as indicating device.
For consultation, design and interpretation of components, devices and electrical circuit diagrams and electronic keywords. Lucid explanation of the concepts supported by a plethora of solved examples makes this an indispensable text on this subject. These instruments are known as the ohmmeter, ammeter, voltmeter, frequency meter, flux meter, power factor meter, etc. The instrument is connected in parallel with the circuit being measured. The electronic measurements and instrumentation notes pdf emi pdf notes book starts with the topics covering performance characteristics, ramp type, staircase ramp, wheat stone bridge, block schematic of cro, dual trace, strain gauges, flow measurement, flow measurement, etc. Principles of electrical measurement by slawomir tumanski. What is the difference between electrical and electronic. Mar 20, 2019 multiple choice questions and answers on electronic instruments.
In addition, it includes electrical and electronic products used in the workplace as well as electrical and electronic medical devices. But before proceeding further, it good to refresh the definitions and terms used in measurements, instruments. For example a cathode ray oscilloscope cro is capable to follow dynamic and transient changes of the order of few nano seconds 109 sec. Multiple choice questions and answers on electronic instruments.
This book explains the basic measurement techniques, instruments, and methods used in everyday practice. The classification is based on the electrical quantities of parts, the nature of the operations, its purposes, its electrical supply, occurring effects, uses and many other terms. When formed, this subcommittee was charged with the responsi bility of preparing a drafting standard covering electrical schematic, wiring and. Series in sensors includes bibliographical references and index. Below are some examples of how the instruments themselves change our measurements. Classification, absolute and secondary instruments, indicating instruments. Types voltmeters for measuring differences of potential voltage between two points in an electrical circuit. Modern electronic instrumentation and measurement techniques. An electronic musical instrument is a musical instrument that produces sound using electronic circuitry. This test will assess your knowledge of and ability to apply the principles of basic electronics. The systematic discussion of their working principle, operation, capabililties, and limitions will facilitate easy understanding of the instruments as well as guide the user select the right instrument for an application.
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