A comparator is a precision instrument used to compare the Dimensions of a given working component with the actual working standard. There are different types of comparators are available. In this article, we are going to discuss the Electrical comparators and Electronic Comparators. Electrical comparators convert the linear movement of the plunger into electrical signals and these signals further calibrated with […]
Metrology is the science of measurement. It meant understanding the units of each quantity and the realisation of the units and calibration. In each country, they follow different unit systems, among them, the Metric system is the predominant system in the world. In this article, we have listed all the different Metrology topics that we have discussed so far.
Based on the field of application Metrology can be further divided into Industrial metrology, Scientific or Fundamental metrology and Legal metrology.
Optical Comparators | Mechanical-Optical Comparators
A comparator is a precision instrument used to compare the Dimensions of a given working component with the actual working standard. There are different types of comparators are available. An optical comparator is one of the types of a comparator which is made up of optical means. What is meant by Optical mean? Let’s see what are they? In optical […]
What is Sigma Comparator In Metrology?
Topic: What is Sigma Comparator In metrology? A comparator is a precision instrument used to compare the Dimensions of given working component with the actual working standard. There are different types of comparators are available. Sigma Comparator is one of the Types of Mechanical comparators. Let’s Quickly go through the subject… This Sigma Comparator is also provided with a frictionless linear […]
Radius Gauges | Fillet Gauges | How to use Fillet Gauges?
Radius Gauges are also known for Fillet gauges. In metrology, Fillet gauges designed to check/measure both internal and external radii on curved surfaces. This is not a precision measuring instrument, rather it allows the user to quickly determine the fillet value. By the way, Are the Fillet and Radius are the same? No.Not exactly. There is a […]
What is Wire Gauge? How to Use Wire Gauge? Wire Gauge Tables
In Metrology, Wire gauges are used to measure the diameters of the wires. These wire gauges are available in a circular or oblong shape and it is having notches along the edges of the shape(as shown in below picture) and each notch is stamped with wire size number. This wire gauge can also be used […]
What is Reed Type Mechanical Comparator In Metrology?
Topic: What is Reed Type Mechanical Comparator In Metrology? A comparator is a precision instrument used to compare the Dimensions of given working component with the actual working standard. There are different types of comparators are available Reed type Mechanical comparator is one of the types of Mechanical Comparators. Ok, let’s Get into the topic quickly… What is meant by Reed In […]
What is Johansson Mikrokator? | Metrology
Topic: What is Johansson Mikrokator? | Metrology A comparator is a precision instrument used to compare the Dimensions of given working component with the actual working standard. There are different types of comparators are available Johansson Mikrokator is one of the Mechanical comparators types Let’s Quickly go through the subject… Johansson Mikrocator was first developed by C.E Johansson, so from then […]
What are the Mechanical Comparators? | Metrology
A comparator is a precision instrument used to compare the Dimensions of a given workpiece component with the actual working standard. There are different types of comparators are available Mechanical Comparators are the type of comparator which is made up of mechanical means. What mechanical means? Is this is a question raised in your mind too? […]
What is Slip Gauges or Gauge Blocks?
Slip Gauges are known as Gauge Blocks. They are Precise Measuring instruments. These Slip Gauges are universally accepted end Standard of length. You know, Johanson first introduced the slip gauges, so they can be called as Johanson gauges as well. And he is a Sweedish Engineer. Construction of Slip Gauge / Gauge Blocks / Johanson gauges […]
What is a Comparator in Metrology ? | Types of Comparators
In Metrology, The comparator is a Precision Instrument, which is used to compare the dimensions of the given component with the actual working standard. The Comparator is an indirect type of precision measurement because it will not measure the dimension, it will indicate the difference in measurement between the given component and working standard, and another […]
V-Block | What is V-Block? | Uses of V-Block |
In Metrology V-Block are material holding devices for the machining operations such as milling or drilling etc. In this article, we have discussed what is V-block, Construction of V-Block, Uses of V-Block. What is V-Block? V-Block is a jig structure which is having True V faces(Grooves) and slots. This is a Cast iron structure. The […]
Dial Indicator | Dial Gauge | Types Of Dial Indicators | Working Principle
The Dial indicator is a mechanical mean, having gears and pinions or levers for magnification system. They can responses to linear measurements even when they are too small. The Dial Indicators can be used as comparators. Basically, comparators are the precession measuring instruments used to compare the workpiece measurements with the standard measurements. When this […]
Scalar and Vector | Definitions | Differences
In physics, Scalar and Vector are two distinct quantities of measurements. In this article, we are going to discuss the definitions with the examples. Scalar and Vector Definitions Scalar is a single dimension quantity whereas the Vector is a two-dimensional quantity. Scalar has a magnitude and vector will have both magnitude and direction. Make sense?…… No? …… […]
Micrometer Screw gauge, Working Principle, construction, Reading measurements
Topic: Micrometer, Working Principle, construction, Reading measurements. The Micrometer is known for screw gauge because a calibrated screw is used for precise measurements. The accuracy of the micrometre screw gauge is 0.01. This is very high accuracy compared to the vernier calliper accuracy 0.02. Most of the engineering works have to require more precession. so screw gauge is […]
What is Least count of an instrument?
In Metrology The least count of an instrument is the smallest change in the value that can be measured with the measuring instrument. Least count for Steel Ruler For example in a Steel Ruler, there are twenty divisions between each 10-millimetre scale reading. So the least count for this steel ruler is 0.5 millimetre. The formula for […]
What are the different vernier caliper types?
In metrology, Vernier calliper is a precision measuring device used to measure the dimensions of the workpiece with high accuracy and precision. The construction and working principle of vernier caliper is explained in the previous article (Click here). In this article, we are going to discuss the different Vernier Caliper types. Vernier Caliper Types According to […]
What is Surface Gauge? How to use Surface gauge?
In Metrology, the Surface gauge is a non-precision instrument, Used to draw the parallel lines and to find the centre of round section material. Simply it is used to scribe parallel lines on the workpiece. Why do we need to draw parallel lines or finding the centre of the cylindrical object? the answer is to set the Tool and […]
Measurement systems | System of Measurements
Topic: Measurement systems | System of Measurements The basic fundamental Units in the system of measurements are Length, Time, Mass, Temperature etc. All the physical quantities can be expressed in terms of these fundamental units. The Different system of measurements can be used in different countries are discussed in the following video. If you like to read the […]
Vernier Calliper Diagram, Working principle
Metrology is a science of measurements. We have discussed what are the different Linear measuring instruments. Vernier scale is a precise measuring instrument, Comparatively low accuracy than the other precision measuring instruments. The different types of Vernier callipers are available to measure internal, external measurements. In this article, we are going to discuss the Vernier Calliper Diagram, […]
What is Linear Measurement?| What are the linear measurement instruments?
Topic: What is Linear Measurement? In Metrology, Linear measurement applies to the measurement of lengths, diameters, heights and thickness including external and internal measurements. Instruments used for Linear Measurement: Linear measurement instruments can be classified into Direct and indirect measuring instruments. Direct measuring instruments. Graduated Measuring instruments Non Graduated measuring instruments Indirect measuring instruments. They can be further […]