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 […]
Metrology is a science of measurement. It meant to understand 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 upon the field of application Metrology can be further divided into
- Industrial metrology
- Scientific or Fundamental metrology
- Legal metrology
see what are these different metrology types here.
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 […]
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 […]
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 […]
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 […]