The static characteristics of an instrument are, in general, considered for instruments which are used to measure an unvarying process condition. Pdf a course in electronic measurements and instrumentation. The disadvantage is they are unable to respond rapidly to measurement of dynamic and transient conditions. The standards of electrical quantities referred to the physical phenomena and laws 58 2. Electrical measurement and measuring instruments, emmi study materials, engineering class handwritten notes, exam notes, previous year questions, pdf free download. It presents a comprehensive treatment of the operation, performance, applications and limitations of both digital and analog instruments, normally encountered in an. At the end of the course, the student will be able to. Pdf electronic and electrical measuring instruments. Jan 01, 2010 electrical measurements and measuring instruments book.
These instruments are most widely used in engineering practice because they are simple and inexpensive. Sawhney a course in electrical and electronic measurements and instrumentation, authored by a. Use of electrical test equipment test equipment is necessary for determining proper setup, adjustment, operation, and maintenance of electrical systems and control panels. Classification of measuring instruments circuit globe. The reference multimeters and calibrators 69 references 71 3. The degree to which repeated measurements show the same results.
Working principle and dynamics of different electromechanical instruments, ammeter. The electrical system normally depends upon a mechanical meter movement as indicating device. Classification of measuring instruments the instrument used for measuring the physical and electrical quantities is known as the measuring instrument. Sawhney and puneet sawhney, is a comprehensive course book for engineering students. Darsonval, electrodynamometer, and the moving iron vane.
So, today, we will see the topic, role of the instruments in measurement systems. Methods of measurement, measurement system, classification of instrument system, characteristic of instrument and measurement system, errors in measurement and its analysis, standards. It is essential for students specializing in electrical and electronic engineering. Working principle and dynamics of different electromechanical instruments, ammeter, voltmeter, ohmmeter, wattmeter, energy meter, measurement of resistance and impedances, bridges and potentiometers, instrument transformers. Electrical measurement and electronic instruments video. In this post we will discuss about classification of electrical instruments. With unique features to make the life of the user easier, this new range of electrical measuring instruments bring a fresh feel to the sector. 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. Cooper, modern electronic instrumentation and measurement techniques prentice hall, 1994. K a bakshi measuring instruments, instrument transformers and power factor meters, measurement of power, measurement of energy, potentiometers, d. Electrical measurement and measuring instruments notes for electrical measurements and measuring instruments emmi by shubhasri kundu. So, we will classify all pressure measuring instruments into three categories moderate pressure measurement, very high pressure. To accurately model our systems, we must take nonidealities into account. Bell electronic instrumentation and measurements is designed as a textbook for undergraduate students of electrical, electronics and instrumentation disciplines.
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. Classification of electrical instruments electrical tutorials. In electrical, the instruments used to measure the resistance or current, voltage, frequency, flux, power factor, etc. The dial resistors are 20 the slide wire of the potentiometer is circular and has 10 turns and a resistance of 10. Notes for electrical measurement and instrumentation mi by ranu singh. Electrical measurement and electronic instruments prof. Bakshi measurements and measureme nt systems units and standards o f measuremen ts errors i n measuremen ts and their analysi s measuri ng system fundamentals analog ammeters and voltmeters extension o f instrume nt range analo g measureme nt of power and wattmater s measureme nt of energy and energ y meters measureme nt of speedfrequency and powe r factor measureme nt of resistance potentiometer ac bridges magneti c measuremen ts. Electronic measurements and instrumentation pdf notes emi. Metrology and measurements notes pdf mm notes pdf book starts with the topics range of measurement,resolutio n, progressive erro, drunken error. Instead it is about the methodology to measure electrical properties as part of. Instruments i welcome to the course on metrology in measurements.
The standards of measurements are very useful for calibration of measuring instruments. Notes for electrical measurements and measuring instruments emmi 0. The term measurement means the comparison between the two quantities of the same unit. They help in minimizing the error in the measurement systems. Some meter movements can be used for both ac or dc measurements, but in general, each meter movement is best suited for a particular type. 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. Pdf electronic instrumentation and measurements by david.
Classification of measuring instruments electrical measurements. Types voltmeters for measuring differences of potential voltage between two points in an electrical circuit. Electrical engineering industrial instrumentation nptel. Below are some examples of how the instruments themselves change our measurements. Electrodynamic, thermocouple electrostatic and rectifier type ammeters and voltmeters, electrodynamic wattmeter, three phase wattmeter. Practical guide to electrical measurements in low voltage switchboards 1 1 electric measurements measurement. Methods of measurements and measuring instruments the measurement methods can be analog or digital methods, deflection or null methods, active or passive methods, direct or indirect methods and absolute or secondary methods. Electrical measurements and measuring instruments 1949.
Measuring instruments classification deflecting, control and damping torques ammeters and voltmeters pmmc, moving iron type instruments expression for the deflecting torque and control torque errors and compensations, extension of range using shunts and series resistance. The meter is provided with 32 program adjustable alarms, up to four inputs or outputs and communication. Electrical measurement and instrumentation course outline 201617 description. This electrical resistance type depend on the principle that at high pressure there will be changes in the resistance, this one. Electrical methods of indicating the output of detectors are more rapid than mechanical methods. Electrical measurement and electronic instruments course. The voltage is the effort variable without which no current is available. Nptel provides elearning through online web and video courses various streams. C bridges, transformer ratio bridges, selfbalancing. Electrical measurement and instrumentation notes for electrical measurement and instrumentation mi by ranu singh. Download a course in electronic measurements and instrumentation by a. Sawhneya course in electrical and electronic measurements and instrumentation. Electrical measurements and measuring instruments 1949 addeddate 20170119 21.
The book is divided into two parts that explain the topics measurements and instrumentation. Derivation of deflecting torque equation for pmmc instruments. On the other hand, electrical instruments are very rapid in response. A course in electronic measurements and instrumentation by a.
Electrical measurement and measuring instruments note pdf. However, their operating mechanism normally depends on a mechanical meter movement as an indicating device. Electrical measurement and electronic instruments youtube. What is the purpose of measurements system what is the difference between true. Subject in a descriptive manner with previous year gate questions discussed content whole syllabus of measurement. Home electrical measurement and measuring instruments note for electrical measurements and measuring instruments emmi by jntu heroes. The value of deflecting torque must depend on the electrical signal to be measured. Principles of electrical measurement s tumanski warsaw university of technology warsaw, poland. Apr 09, 2017 to watch complete measurement course and all electrical eng. Besides, many of them are the potential sources of noise.
But before proceeding further, it good to refresh the definitions and terms used in measurements, instruments. Measuring systems basing on the signal processors 410. Both signal generation signal generators, power supplies and signal measurement multimeters, scopes instruments are nonideal. It is measured across an electrical circuit element or branch of a circuit. Sep 02, 2018 electrical measurements lab manual pdf download. Jun 07, 2017 to watch complete measurement course and all electrical eng.
Jan 14, 2017 electrical and electronic measuring equipment. The objective of the course is to provide the student with essential principles of basic circuit analysis, digital logic circuits, transducers and electronic instruments for measurement of physical quantities. The magnitude of one of the quantity is unknown, and it is compared with the predefined value. Download pdf of electrical measurement and measuring instruments note offline reading, offline notes, free download in app, engineering class handwritten notes, exam notes, previous year questions, pdf. Electrical measurements course introduces the basic principles of all measuring instruments. Jun 04, 2014 electrical measurements and measuring instruments darsonval galvanometer this instrument very commonly used in various methods of resistance measurement and also in d. Notes for electrical measurement and instrumentation mi. Mechanical instruments are very reliable for static conditions.
Welcome to the course on metrology in measurements. Electrical measurement and electronic instruments nptel. Design, manufacturing and testing of gauges of all kinds. Subject in a descriptive manner with previous year gate questions content discussed in this lecture. Lec 01 introduction of meausrement and basic instruments. Download electronic instrumentation and measurements by david a.
Fundamentals of instrumentation and measurementedited by dominique placko. With an ac voltage, you could measure the instantaneous power using the equation above or the average power, which is usually most useful, using the equation below. Measuring centres 7 use the mc 740 multifunction meter is used for monitoring and measuring electrical quantities of a threephase electricenergy distribution system. Mechanical measurements and instrumentation by r k rajput pdf. A course in electrical and electronic measurements and instrumentation a. Lecture notes in electrical measurements for ee students. Classification, absolute and secondary instruments, indicating instruments. Bridges, magnetic measurements, oscilloscopes, digital meters. All the static performance characteristics are obtained by one form or another of a process called calibration. Methods of measurements and measuring instruments the measurement methods can be analog or digital methods, deflection or null methods. So, this is our first class in electrical measurement and.
Electronic measurements and instrumentation pdf notes. Electrical measurements and measuring instruments 2903 electrical measurement and measuring instruments. Notes for electrical measurements and measuring instruments emmi by shubhasri kundu. To watch complete measurement course and all electrical eng. The following is a general procedure for use of test equipment. The meter is provided with 32 program adjustable alarms, up to four inputs or outputs and. For now on this particular page we have provided em lab handbook in pdf for jntuh jntuk or jntua students of b. So scroll above and download electrical measurements lab manual and if you face any problem, dont hesitate to write about it to us.
Electrical measuring instruments and their uses complete. Cooper, modern electronic instrumentation and measurement techniques prentice hall. Electrical measurement and electronic instruments iit kharagpur. Electrical measurements are among the most widely performed types of measurement. Pdf electrical measurements and measuring instruments. Electrical voltage and current are two important quantities in an electrical network. All testo electrical testing equipment has gone through extensive tests to ensure it is reliable, robust, and suitable for a range of electrical measurements and applications. Owing to the development of electrical equipment capable of converting nonelectrical quantities into electrical quantities, the techniques and instruments associated with electrical measurements are employed to measure virtually all physical quantities. These instruments are known as the ohmmeter, ammeter, voltmeter, frequency meter, flux meter, power factor meter, etc. Classification of measuring instruments electrical. Electrical measurements pdf notes em pdf notes smartzworld. These instruments converts the energy of the measured quantity directly into energy that actuates the instrument and the value of the unknown quantity is measured or displayed or recorded directly.
Nevertheless, in the electrical field it is not always easy to find samples to compare. Electrical measurements emphasising simple methods and instruments, materials aspects, electrochemistry, and. It also deals with the measurement of rlc parameters voltage, current power factor, power, energy and magnetic measurements. Although people have survived electrical shocks exceeding. Hence they cannot respond rapidly to measurements of dynamic and transient conditions. Co 1 interpret the working principles of various electrical measuring instruments co 2 measure various ac quantities. Subject in a descriptive manner with previous year gate questions discussed content whole syllabus of measurement for gate and ies. Their parts are very bulky, rigid and have a heavy mass. Electrical measurements and instrumentation course code. Electrical measurement and measuring instruments emmi study. Jul 20, 2014 electrical measuring instruments definitions, types. Lecture notes in electrical measurements for ee students eep. Electrical measurement and electronic instruments course swayam. Electrical measurements and measuring instruments by r.
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