Types of mechanical measuring instruments and their uses pdf

In the past, a common time measuring instrument was the sundial. In appendix 1 you will find a incomplete list of the most important mechanical components. Learn about different types of mechanical tools and gauges used on ships. Jul 20, 2014 electrical measuring instruments definitions, types. In this post we will discuss about classification of electrical instruments.

Download as docx, pdf, txt or read online from scribd. Hysteresis linearity resolution of measuring instruments threshold drift zero stability loading effect system response measurement methods generalized measurement system static performance chapter 01 mechanical measurement 3 hours 7% weightage approx. Types of micrometer the names are based on their application. Hi aspirants, scientific instruments are part of laboratory equipment, but are considered more sophisticated and more specialized than other measuring instruments as scales, meter sticks, chronometers, thermometers or even power or waveform generators. The main scale and the vernier scale that can slide along the main scale. Care is needed when taking a reading from a mechanical micrometer. The term has its origins in the art and science of scientific instrumentmaking instrumentation can refer to devices as simple as directreading thermometers, or as complex as multisensor components of industrial control systems. Ramkumar department of mechanical engineering iit kanpur. Used for measuring angular distance between two objects. It is used to measure linear dimensions like length, diameter, depth. There are a few measuring instruments that are more commonly seen than.

The matter presented here is prepared by the author for their respective teaching assignments by referring the text books and reference books. Electrical measuring instruments and their uses complete. Pressure gauges are a really common and crucial measuring tool. The visual means of level measurement previously discussed are rivaled in simplicity and dependability by float type measurement devices. The instruments used to measure the physical and electrical quantities are known as measuring instruments. Here we are interested in electrical measuring instruments so we will discuss about them in detail. These are designed by our professionals using the highest grade of material to enable strength and high durability. In the next two sections i will show you examples of mechanical equipment that have been built in the laboratories depending on the task that had to be done, i. In old days the production was on a small scale, different component parts were made. Different types of mechanical measuring tools and gauges used on.

In the physical sciences, quality assurance, and engineering, measurement is the activity of obtaining and comparing physical. Mechanical instruments and tools tools metalworking scribd. It requires external scale to compare the measured value. Important measuring devices and uses, types of measuring. Absolute instrument measures the process variable directly from the process without the use of conversion. Vernier caliper is a widely used linear measurement instrument with a least count of 0. Plain gauge is defined as the dimension measuring or inspective tools, without a scale to measure any manufacturing part of tools. Methods of measurement based on agreed units and standards.

For example, a water pressure gauge will tell you the amount of pressure coming out of. Electrical measuring instruments and their uses complete notes. A sundial represents one of the earliest devices used to measure the suns position in the sky, until inventors created the first clocks, which measure the passing of time. Name of important measuring devices and their uses. Also, gauges consume less time as compared to other measuring devices. These types of gauges are used in many different things, and you will find that owning one will come in handy.

An astonishing array of devices and tools allow humans to measure just about everything, including calculating travel distances, determining a boards length in construction, ascertaining air and water temperatures, analyzing wind speed, gauging the pressure inside a tire and measuring the distance around the globe. Tech 101 how to use measuring tools hemmings daily. Even it can be defined as the accuracy of measurements. The magnitude of one of the quantity is unknown, and it is compared with the predefined value. The measuring instruments are used frequently in our daytoday life for the measurement of various quantities like length, weight, temperature, pressure, current, voltage etc. Measuring instruments are used for recording the data with respect to the time. The objective of this section is to enable the trainee to. At the moment we provide about 500 different types and models of high quality measuring instruments to do tests and analysis of various physical, electrical, chemical and other parameters. Measuring centres 7 use the mc 740 multifunction meter is used for monitoring and measuring electrical quantities of a threephase electricenergy distribution system. How do we study the weather meteorologists study the weather by recording and looking at their data they collect data by using different weather instruments thermometer, barometer, hygrometer, and.

Mar 15, 2020 basically there are three types of measuring instruments and they are electrical measuring instruments mechanical measuring instruments. A diaphragm pressure gauge, in its simplest form, consists of a corrugated diaphragm as shown in the figure. The measuring instruments may be classified as follows. Modern surveying instruments and their uses in civil. To the user of measuring instruments a knowledge of their construction and accuracy is a matter. Classification of measuring instruments instrumentation and. An instrument used in aircrafts for measuring altitudes.

Mechanical and other engineering measuring tools and instruments. It is basic instrument of measurement, consist of two types of scale. More concentration should on class room work and text book methodology. Rulers are used extensively in design labs and classrooms, while meter and yardsticks are more commonly used for. It is usually employed to measure relatively low pressures.

I probes may be mechanical, optical, laser, or white light, among others. For highly accurate measurement of time an atomic clock is used. Measuring and measuring tools the accuracy of any measuring device depends on the user as much as on the design of the tool. Rulers are used to measure length, as are meter sticks and yardsticks. The meter is provided with 32 program adjustable alarms, up to four inputs or outputs and. Following are the modern surveying instruments which are used for surveying.

Each measuring instrument serves a specific purpose for the person who is using it. With modern surveying instruments, survey work will be precise, faster and less tedious. Chapter 1 mechanical measurement presentation prepared by prof. Measuring instruments and gauges are used to measure various parameters such as clearance, diameter, depth, ovality, trueness etc. Micrometers usually come in pairs or in sets with several measured rods included to increase their range. In addition to weights and lengths, primitive societies also needed to measure the volume of liquids and the passing of time. A mechanical pressure measuring instrument used to measure pressure above or below the atmospheric pressure. Pressure gauges measure the pressure of water and air. Double prismatic guide of 30 020 011 0 150 014 40 0. They are handy for measuring piston or crankshaft journal size, disc. The devise that is used for measurement of certain physical quantity is called as measuring instrument. In that time, body parts such as arms and feet were often used as measuring instruments.

Different types of mechanical measuring tools and gauges used. Different precision measuring tools are present in ship such as vernier. Primitive peoples needed measuring to perform tasks such as building dwellings, fashioning clothing and interchanging food. Common maintenance tools and their uses tools are designed to make a job easier and enable. Accurate to within several thousandths, micrometers are an essential tool for machinists and engineers. The 10 measuring instruments and their uses are presented below. The operator can use gauge without having vast knowledge in operating those mechanical components. Today, the usual measuring instruments for time are clocks and watches. A ruler can be used to draw straight lines but there is no quarranty that the line drawn is accurate and. Some of the modern surveying instruments are discussed in this article.

Measurement is an important part of science, construction, art, design and a wide array of other professional fields. There are a few measuring instruments that are more commonly seen than others. Sep 11, 2018 this is the complete explanation of t he 10 measuring instruments and their uses in a detailed way. Graduates in electrical or mechanical engineering or any of the physical sciences are taught the essential disciplines of measurement science to enable them to design electronic measuring.

Tech 101 how to use measuring tools jim oclair on aug 9th. Measuring is not only checking the length, width or thickness of an objects but also checking of the shape things like the flatness, straightness, roundness or squareness. Exact measurement is an absolute must for everyone who wants to guarantee precise and firstclass work. The least count of a measuring instrument is the smallest change in the measured quantity that can be resolved on the instrument s scale. Mostly, the digital meter is used for an accurate reading. With a need to make quality products which meet design specified tolerances, a large number of firms, research and development centers, and school and college laboratories use measuring instruments that have high accuracy and precision.

List of equipmentsmachines mechanical engineering department fluid mechanics and hydraulic machines lab sr. Mar 09, 2016 introduction to mechanical measurement 1. As this type of encoder can drive with less power than the incremental encoder, the battery. Classification of measuring instruments circuit globe. Electrical measuring instruments physics libretexts. Jan 20, 2020 ohms law and kirchhoffs method are useful to analyze and design electrical circuits, providing you with the voltages across, the current through, and the resistance of the components that compose the circuit. This may not be as simple to use as some of the other measurement tools due to the way that you have to read it, but it does work quite well. Units of measurement and their standards, which is concerned with the establishment, reproduction, conservation and transfer of units of measurement and their standards.

Principles and methods of temperature measurement course content temperature can be measured via a diverse array of sensors. Instrumentation is a collective term for measuring instruments that are used for indicating, measuring and recording physical quantities. A part from the measuring instruments used in workshop, i will discuss a few types of instruments used in production labs also. This is the complete explanation of t he 10 measuring instruments and their uses in a detailed way. Measurement devices come in all shapes, sizes and types. Different types of measuring tools and gauges used on ships.

To accurately cook meals from scratch requires the use of small scales. Dec 05, 2016 name of important measuring devices and their uses. Electrical instruments measure the various electrical quantities like electrical power factor, power, voltage and. Classification of electrical instruments electrical. These tools measure important engineering parameters which describes the condition of the working machinery. But before proceeding further, it good to refresh the definitions and terms used in measurements, instruments. Different types of mechanical measuring tools and gauges used on ships. Many forms of float type instruments are available, but each uses the principle of a buoyant element that floats on the surface of. A measuring instrument is a device for measuring a physical quantity. Electrical measuring instruments give an accurate and efficient reading for electrical equipment. Electrical measuring instruments definitions, types. Measuring instruments, measurement instruments, test equipment, measuring tools, measurement, hand held equipment like thermometers, tachometers.

It is essential for displaying numerical values of the electrical quantities as per the time. Blueprints are exact copies of mechanical or other types of drawings and employ a. To measure these parameters require instruments, and these instruments are described in this section. These encoders are widely used in a variety of measuring instruments as the length. Classification of measuring instruments instrumentation. Electrical measuring instruments types accuracy precision. The term measurement means the comparison between the two quantities of the same unit. All of them infer temperature by sensing some change in a physical characteristic. Blueprints are exact copies of mechanical or other types of drawings and employ a language of their own.

Metrology is defined as the science of measurements or the precision of measurements. In the field of magnetic measurements the mechanical equipment is mainly used for the. The distance between the jaws is then read in different ways for the. The science which is dealing with measurements and their conditions is called measurement science or metrology in this article, we will discuss methods, standards, and instruments for linear measurements but before that, we should. Ohms law and kirchhoffs method are useful to analyze and design electrical circuits, providing you with the voltages across, the current through, and the resistance of the components that compose the circuit. Dec 14, 2011 good blog thanks for sharing this types of valuable information.

In the physical sciences, quality assurance, and engineering, measurement is the activity of obtaining and comparing physical quantities of realworld objects and events. A mechanical pressuremeasuring instrument used to measure pressure above or below the atmospheric pressure. Classification of measuring instruments the instrument used for measuring the physical and electrical quantities is known as the measuring instrument. Types of precision measuring instruments used in industry. Classification of electrical instruments electrical tutorials. Stop watches are also used to measure time in some sports. Humans employ multiple tools to measure their worlds. Our offered mechanical measuring instruments feature a set of various tools which are widely used for measuring purpose and feature perfection and an unmatched accuracy. Equipmentsmachines quantity 1 orifice and mouthpiece apparatus 1 2 notch tank apparatus 1 3 jet on vane apparatus 1 4 combined pipe friction measurement apparatus 1 5 venturimeter and orificemeter apparatus 1. There are four basic types of temperature measuring devices, each of which uses a different principle. We offer a broad range of products from the field of measuring instruments. From height and depth, to width and breadth, theres a measurement tool for most everything.