Electronic Measuring Instruments Course And Certification

What are Electronic Measuring Instruments?

Measurement is defined as the designation of a number to a property of an event or object, that can be correlated with other pre-existing events or objects. The scope, definitions, and application of measurement all depends on the context and discipline.

A measuring instrument is defined as a device for measuring a physical volume. In the field of physical sciences, engineering and also in the area of quality assurance, measurement is the process of gathering, storing and comparing physical quantities of real-world objects and events.

Pre-defined standard objects and events are used as units for measurements, and the process of measurement gives a number describing the item under study and the referenced unit of measurement.

If the measuring instrument can accurately measure the basic electrical quantities, such as the voltage and current it is then referred to as basic measuring instruments.

Features of Electronic Measuring Instruments

Some of the features of Electronic Measuring Instruments are:

1. Voltmeter: As the name suggests, an electronic voltmeter is a measuring instrument that is used to measure the voltage across any two points of an electric circuit. There are two types of voltmeters which are AC voltmeter, and DC voltmeter. AC voltmeter measures the AC voltage across any two points of an electric circuit whereas DC voltmeter measures the DC voltage across any two points of an electric circuit.

2. Ammeter: As the name suggests, an ammeter is simply a measuring instrument that measures the current flowing through any two points in an electric circuit. There are two types of ammeters AC ammeter and DC ammeter. AC ammeter measures the AC current that flows through any two points of an electric circuit whereas DC ammeter measures the DC current that flows through any two points of an electric circuit.

3. Ohmmeter: Ohmmeter is used to take measurement of the value of resistance between any two points of an electric circuit. Ohmmeter can also be used for finding the value of a resistor that is unknown. There are two types of ohmmeters which are shunt ohmmeter and series ohmmeter. In the series type of ohmmeter, the resistor that its value is unknown and about be measured should be connected in series with the ohmmeter. It is very useful for measuring high values of resistance.

4. Multimeter: A multimeter is an electronic measuring instrument that is used to measure various quantities such as voltage, current & resistance at the same time. It can be used to measure AC and DC voltages, AC and DC currents, and resistances of different ranges.

Benefits of Electronic Measuring Instruments

Below are some of the benefits of Electronic Measuring Instruments

The advantages of an electronic measurement are

1. Most of the quantities that are measured can be transformed by transducers into electronic signals.

2. An electrical or electronic signal can be filtered, amplified, sampled, multiplexed, and measured.

3. The measurement of a quantity can easily be achieved in or converted into digital form for computerized recording and analysis.

4 The measured signals can be transmitted across long distances with the help of cables or radio links, with zero loss of information.

5. Many measurements can be conducted either concurrently or in rapid succession.

6. Electronic circuits can identify and increase/amplify very weak signals and it can measure the events of a very short duration as well.


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