Electronic instrumentation and measurement techniques by albert d. Electronic instrumentation and measurement techniques by. Electrodynamic, thermocouple electrostatic and rectifier type ammeters and voltmeters, electrodynamic wattmeter, three phase. Search hundreds of resources for measurements and instrumentation homework problems, lab exercises, example programs, and tutorials. A selfcalibrating instrument for measuring conductance at radio. The multimeter is the most common electronic instrumentation in use. Mar 15, 2020 basically there are three types of measuring instruments and they are. General purpose instrument measures voltage, current and resistance and sometimes other quantities as well network analyzer. Pdf conceptions of medical teachers regarding learning and teaching affect their. Course description the course is designed to provide a practical introduction to electronics with a focus on measurement and signals. The course will integrate demonstrations and laboratory. Instrumentation is a collective term for measuring instruments that are used for indicating.
Level sight glass and adjustable feet for perfect level measurement weight. Thermocouple type rf ammeter, ohm meters series type, shunt type, voltage, current, resistance measurement using dmm, auto zeroing, auto ranging. Modern electronic instrumentation and measurement techniques helfrick, albert d. If a logic probe is not available a square wave through a signal generator can be used.
Processing of the analogue measurement signals 121 4. Precision a measure of consistency or repeatability of measurement, i. Methods of electronic measurements were invented and developed simultaneously with the. Aug 25, 2014 merits uniform scale for the instrument power consumption is very low a single instrument can be used for different current and voltage ranges the toqueweight ratio is high gives higher accuracy. List of electrical and electronic measuring equipment. Moreover,the book deals with the cathode ray oscilloscopes.
Electrical field, e, is the negative of the gradient in electrical potential, i. Usually compact, batterypowered, and portable, two types of multimeter are widely available. Stop watches are also used to measure time in some sports. Measures the resistance of a component oscilloscope. Electrodynamic, thermocouple electrostatic and rectifier type ammeters and voltmeters, electrodynamic wattmeter, three phase wattmeter.
Eee 432 measurement and instrumentation lecture 1 fundamentals of measurement prof. Electronic measurements measurement of some electric, magnetic, or electromagnetic quantity or of the relationships between such quantities characterizing the operation of electronic equipment over the range of frequencies from the infrasonic to the superhigh. List of electrical and electronic measuring equipment wikipedia. The comprehensive directory provides access to full contact and ability information for sourcing professionals, engineers and researchers wishing to get information on instruments. One of the first requirements in this calibration procedure is that a suitable, stable dc supply be available, since any variation in the supply voltage causes a corresponding change in the voltmeter calibration voltage. Electromechanical ammeters, voltmeters, and ohmmeters chapter 5.
It is a combination meter that is capable of measuring, resistance, voltage ac and dc and. Measurement, dynamic characteristicsspeed of response, fidelity, lag and dynamic error, dc voltmeters, ammeters multirange, range extension, ac voltmetersmultirange, range extension,shunt. One of the first requirements in this calibration procedure is that a suitable, stable dc supply be available, since any variation in the supply voltage causes a corresponding change in. The static characteristics of an instrument are, in general, considered for instruments which are used to measure an unvarying process condition. Measuring instruments the device used for comparing the unknown quantity with the unit of measurement or standard quantity is called a measuring instrument. This tutorial covers mainly the electronic instruments, which are useful for measuring either electrical quantities or parameters following are the most commonly used electronic instruments. A course in electrical and electronic measurements and instrumentation, authored by a.
Sawhney and puneet sawhney, is a comprehensive course book for engineering students. An instrument based 011 the twin t null circuit can be made selfcalibrating at a given. Here we are interested in electrical measuring instruments so we will discuss about them in detail. Run vxi resource managerruns vxi resource manager resman for the selected vxi system. Propertiesdisplays properties of the selected vxi system. Displays waveform of a signal, allows measurement of frequency, timing, peak excursion, offset. The smallest change in a measured variable to which an instrument will respond. Although the concept of weights and measures today. Expected value the design value or the most probable value that expect to obtain. Modern electronic instrumentation and measurement techniques details category. All the static performance characteristics are obtained by one form or another of a process called calibration. Further,it describes various instrument calibration. This instrument generates high and low logic states to test digital circuits. Square waves can also be used to test the response time of a digital circuits.
A literature search resulted in some instruments to measure. Measurement of instantaneous values of more than quantities u, i, p, q, s, pf, pa, f. Although the guide is written primarily for nmhss, many other organizations and research. Today, the usual measuring instruments for time are clocks and watches. Resolution the smallest change in a measurement variable to which an instrument will respond. Cooper and a great selection of related books, art and collectibles available now at.
In the past, a common time measuring instrument was the sundial. Pdf development of an instrument the colt to measure. Measurements and instrumentation courseware national. Multimeter measures range of currents and voltages for both direct current and alternating current and also resistances. Electrical measuring instruments are devices used to measure electrical quantities such as electric current, voltage, resistance, electrical power and energy. Conditioning of resistance, capacitance and inductance 126 4. Popular with manufacturing and service professionals alike, the most versatile test instrument is the multimeter, combining measurement of ac and dc voltage, resistance ohms, and current amperes. Fundamentalsofinstrumentationandmeasurement yidnekachew. Electronic instrumentation and measurement techniques book. The instrument is used for monitoring, measuring and recording measurements of electric quantities of electrical power distribution system. A second common instrument found in any well used instrumentation shop is the frequency counter or meter. Both signal generation signal generators, power supplies and signal measurement multimeters, scopes instruments are nonideal. A course in electrical and electronic measurements and.
To accurately model our systems, we must take nonidealities into account. Electrical measurements and measuring instruments u. Cooper, modern electronic instrumentation and measurement techniques prentice hall, 1994. In its most simple form the meter measures the amount of time it takes from one positive going pulse to the next positive going pulse, and the result is displayed as a number of cycles per second or hertz. Merits uniform scale for the instrument power consumption is very low a single instrument can be used for different current and voltage ranges the toqueweight ratio is high gives higher accuracy. For the instrument to perform the desired function, it may be necessary to. Electrical and electronics measurements and instrumentation.
Engineering modern electronic instrumentation and measurement techniques material type book language english title modern electronic instrumentation and measurement techniques authors albert d. Classification, absolute and secondary instruments, indicating instruments, control, balancing and damping, constructional details, characteristics, errors in measurement, ammeters, voltmeters. Measurement systems, units, and standards chapter 2. Methods of measurement, measurement system, classification of instrument system, characteristic of instrument and measurement system, errors in measurement and its analysis, standards. Guide to meteorological instruments and methods of observation. Electrical instruments measure the various electrical quantities like electrical power factor, power, voltage and current etc. Linear birefringence measurement instrument using two photoelastic modulators b. Electronicsmeasuring instruments wikibooks, open books. This is electronic measurements and instrumentation pdf. Effective resistance at high frequency, r meter, lcr meter. Then, it goes on to discuss electronics equipment,measurements of low resistence and a. For highly accurate measurement of time an atomic clock is used. The instruments, which are used to measure any quantity are known as measuring instruments. Demerits this instrument can be used only on dc supply the cost of the instrument is more than m.
Below is the list of measuring instruments used in electrical and electronic work. The book is divided into two parts that explain the topics measurements and instrumentation. Below are some examples of how the instruments themselves change our measurements. The only prerequisites are courses in differential equations, as well as electricity and magnetism. Read measurement instrument articles about photoelastic modulators, polarimeters, and exicor based products and applications. Users manual for standard temppoint, voltpoint, and. Beginning with the units, dimensions and standard, this book discusses the measurement and measurement errors. Measurement measurement also called metrology is the science of determining values of physical variables. These are all available for download in pdf form from the course web page.
154 227 1341 866 1321 1580 469 1005 515 221 1619 302 1347 63 1059 1044 1162 337 1390 264 430 569 1449 120 461 84 524 518 730 325 1599 553 765 1059 709 927 23 1102 344 835 1037 545