Measurement | Engineering Notes India

Thermodynamic Work: Equations, Formula, PdV-Work, Heat, Pressure and Temperature Measurement

Thermodynamic Work: Equations, PdV-Work, Heat, Pressure and Temperature Measurement. In this article we will discuss about how to measure work, heat, pressure and temperature. Learn about:- 1. Mechanical and Thermodynamic Work 2. Equations for Work Done in Various Processes 3. PdV-Work 4. Heat Measurement 5. Pressure Measurement 6. Thermometers and Measurement of Temperature. Contents: Mechanical and Thermodynamic Work Equations for [...]

By Mugdha P|2018-07-23T10:36:45+05:30July 23, 2018|Thermodynamics|Comments Off

List of Pressure Measuring Devices| Fluid Mechanics

List of Pressure Measuring Devices. And the devices are: 1. The Barometer 2.Piezometer or Pressure Tube 3. Manometers 4. The Bourdon Gauge 5. The Diaphragm Pressure Gauge 6. Micro Manometer (U-Tube with Enlarged Ends) . 1. The Barometer: The barometer is a device meant for measuring the local atmospheric pressure. Fig. 2.18 shows a mercury barometer which consists of a [...]

By Reddy R|2018-06-15T08:41:54+05:30June 15, 2018|Measurement of Pressure|Comments Off

Classification or Types of Notches and Weirs | Fluid Mechanics

Classification or Types of Notches and Weirs in Fluid Mechanics. A notch means an opening provided in the side of a tank, such that the opening extends even above the free surface of the liquid in the tank. It is in a way, a large orifice having no upper edge. A notch is generally meant to measure the flow of [...]

By Reddy R|2018-06-15T08:41:53+05:30June 15, 2018|Weirs|Comments Off

List of Vacuum Pressure Measuring Devices [with formula]

List of Vacuum Pressure Measuring Devices [with formula]! 1. Mercury Manometers: These are of two types: i. Differential and Optical Lever Manometers, which are modifications of the ordinary mercury manometers, with more sensitive methods of observation and measurement. These are suitable for measurement of pressures up to 10-3 mm. ii. McLeod Gauge, which is a standard device of its type [...]

By R Chaurasiya|2018-05-16T06:23:19+05:30May 16, 2018|Vacuum Pressure|Comments Off

Measuring Rainfall: How is Rainfall Measured in India?

Read this article to learn about: How is Rainfall Measured in India? Among all forms of precipitation, rainfall is the common one. It is necessary to know the methods for measuring rainfall and analysing the rainfall data. The amount of rainfall is expressed as depth in centimeters (or millimeters) which falls on a level surface. Intensity of rainfall is the [...]

By R Bhagat|2018-05-15T06:18:37+05:30May 15, 2018|Measuring Rainfall|Comments Off

List of 4 Commonly Used Turbidimeters | Instruments | Water Engineering

The commonly used turbidimeters are as indicated below: 1. Jackson Turbidimeter (or Jackson Candle Turbidimeter): It consists of a graduated glass rube placed in a metal cylindrical container which is supported on a metal stand. At the bottom of the stand a standard candle of bees wax is fixed. The candle is so designed that it burns within the limits [...]

By R Sonowal|2018-05-15T06:16:04+05:30May 15, 2018|Turbidimeters|Comments Off

How to Measure Fluctuating Pressure? | Wind Engineering

In this article we will discuss about how to measure fluctuating pressure caused my wind movements. Pressure Transducers: The basic requirement of a pressure transducer is a device which accurately transforms a pressure difference to an electrical voltage. Two basic phenomena are used: (i) The change in resistance of conducting or semiconducting element as it is strained; and (ii) The [...]

By Rakkhita B|2018-03-13T08:10:33+05:30March 13, 2018|Pressure Measurements|Comments Off

Measurement of Power Quality: 7 Devices | Electrical Engineering

The following points highlight the top seven devices used for measuring power quality. The devices are: 1. Multimeters 2. Digital Cameras 3. Oscilloscopes 4. Disturbance Analyzers 5. Spectrum Analyzers and Harmonic Analyzers 6. Combination Disturbance and Harmonic Analyzers 7. Flicker Meters. Device # 1. Multimeters: After initial tests of wiring integrity, it may also be necessary to make quick checks [...]

By Neelam R|2017-12-28T10:24:54+05:30December 28, 2017|Power Quality|Comments Off

Use True Rms Meters | Voltage | Electrical Engineering

Complex waveforms are most accurately measured with a true rms reading voltmeter. This instrument indicates the rms value of any waveform (such as a sine wave, square wave or sawtooth wave) by using an rms detector that responds directly to the heating value of the input signal. To measure the rms value of an arbitrary waveform, we may feed an [...]

By Neelam R|2017-12-28T10:24:54+05:30December 28, 2017|Voltage|Comments Off

Rms Variation Indices and Its Applications | Electrical Engineering

For many years, the only indices defined to quantify rms variation service quality were the sustained interruption indices (SAIFI, CAIDI, etc.). Sustained interruptions are in fact only one type of rms variation. IEEE Standard 1159-19957 defines a sustained interruption as a reduction in the rms voltage to less than 10 percent of nominal voltage for longer than 1 min. Sustained [...]

By Neelam R|2017-12-28T10:24:52+05:30December 28, 2017|Power Quality|Comments Off

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