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Electronic Measuring Instruments And Their Principles Of Working Pdf

electronic measuring instruments and their principles of working pdf

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Ammeter The ammeter is the basis for many other electrical measuring instruments. Whether you are measuring volts or ohms, essentially inside the instrument you are measuring current. Measurement of current in a circuit is somewhat problematic because all the electrical energy to be measured must pass through the meter, so there is the inconvenience of cutting open and later re-terminating the circuit. Another problem is that conventional ammeters, as incorporated in the ubiquitous multimeter, cannot dissipate heat that is greater than just a few amps.

Measuring Instruments and Electrical Measurements

Skip to Main Content. A not-for-profit organization, IEEE is the world's largest technical professional organization dedicated to advancing technology for the benefit of humanity. Use of this web site signifies your agreement to the terms and conditions. Application of Embedded Computer Module in Intelligent Measurement Instruments Abstract: This paper analyzed the application of embedded computer system in the field of electronic measurement instrument. The general work principle of an instrument was firstly introduced.

The characteristics of common embedded computer system were briefly discussed. The emphasis was put on the considerations for the platform design of typical electronic measurement instrument. According to the new intelligent instrument design of peak power analyzer, an application solution was presented.

The module choice, system bus design, human-machine interface design and hardware and software design were discussed in great detail. The results show that the effective design based on embedded computer module can dramatically shorten the development period. The design conception also attributes to other electronic control systems.

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Analog Instrument

Skip to Main Content. A not-for-profit organization, IEEE is the world's largest technical professional organization dedicated to advancing technology for the benefit of humanity. Use of this web site signifies your agreement to the terms and conditions. Application of Embedded Computer Module in Intelligent Measurement Instruments Abstract: This paper analyzed the application of embedded computer system in the field of electronic measurement instrument. The general work principle of an instrument was firstly introduced.

Abbe’s Principle

Overview of electrical measuring instruments – Part 1

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The instrument used for measuring the physical and electrical quantities is known as the measuring instrument. The term measurement means the comparison between the two quantities of the same unit. The magnitude of one of the quantity is unknown, and it is compared with the predefined value. The result of the comparison obtained regarding numerical value.

The instruments used to measure any quantity are known as measuring instruments. If the instruments can measure the basic electrical quantities, such as voltage and current are known as basic measuring instruments. As the name suggests, voltmeter is a measuring instrument which measures the voltage across any two points of an electric circuit. The units of voltage are volt and the measuring instrument is meter. We can classify the voltmeters into the following two types based on the type of voltage that it can measure. As the name suggests, DC voltmeter measures the DC voltage across any two points of an electric circuit. A practical DC voltmeter is shown in below figure.


There are available digital measuring instruments with extremely small uncertainty. Thus, such instruments can be used as the working standards. For example.


Absolute Instrument

Facebook Twitter. An analog instrument is one in which the output or display is a continuous function of time and bears a constant relation to its input. Analog instruments find extensive use in present day applications although digital instruments are increasing in number and applications. The areas of application which are common to both analog and digital instruments are fairly limited at present. Hence, it can safely be predicted that the analog instruments will remain in extensive use for a number of years and are not likely to be completely replaced by digital instruments for certain applications. Broadly, the analog instruments and for that matter digital instruments may be classified according to the quantity they measure. For example, an instrument meant for measurement of current is classified as an Ammeter while an instrument that measures voltage is classified as a Voltmeter.

The physicals quantity like voltage, current, power and energy are measured through the analogue instruments. Most of the analogue instrument use pointer or dial for indicating the magnitude of the measured quantity. The classification of the analogue quantity depends on the number of physical quantity they measures. For example, the instrument uses for measuring the current is known as the ammeter and the voltmeter is used for measuring the voltages. The wattmeter and the frequency meter measures the power and frequency respectively. The analogue instrument is classified by the type of current that can be measured. The following are the types of an electrical instrument.

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The reason is the electronic devices divert your attention and also cause strains while reading eBooks. Knowledge of instrumentation is critical in light of the highly sensitive and precise requirements of modern processes and systems. Rapid development in instrumentation technology coupled with the adoption of new standards makes a firm, up-to-date foundation of knowledge more important than ever in most science and engineering fields. EasyEngineering team try to Helping the students and others who cannot afford buying books is our aim.

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