How to read vernier caliper

Things you need to know: • Accuracy refers to the maximum error encountered when a particular observation is made. • Error in measurement is normally one-half the magnitude of the smallest scale reading. • Because one has to align one end of the rule or device to the starting point of the measurement, the appropriate error is thus twice that of the smallest scale reading. • Error is usually expressed in at most 1 or 2 significant figures. Tape Equipment: It is made up of a long flexible tape and can measure objects or places up to 10 – 50 m in length. It has markings similar to that of the rigid rule. The smallest marking could be as small as 0.1 cm or could be as large as 0.5 cm or even 1 cm. How to use: The zero-mark of the measuring tape is first aligned flat to one end of the object and the tape is stretched taut to the other end, the reading is taken where the other end of the object meets the tape. Accuracy: ± 0.1 to 1 cm Rule Equipment: It is made up of a long rigid piece of wood or steel and can measure objects up to 100 cm in length. The smallest marking is usually 0.1 cm. How to use: The zero-end of the rule is first aligned flat with one end of the object and the reading is taken where the other end of the object meets the rule. Accuracy:± 0.1 cm Vernier Caliper Equipment: It is made up of a main scale and a vernier scale and can usually measure objects up to 15 cm in length. The smallest marking is usually 0.1 cm on the main scale. It has: • a pair of external ...

How to Read Vernier Micrometer Most micrometers can read to one thousandth of an inch (0.001"). Vernier micrometers can read to one ten-thousandth of an inch (0.0001"). Consider the micrometer reading shown below: If this was a 0 - 1" micrometer it would read somewhere between 0.255" and 0.256". (250 on the Sleeve, with more than 5, but less than 6 on the Thimble). Usually this would be close enough however some times we need to be more accurate. Vernier micrometers have lines marked on the sleeve that let you read ten-thousandths of an inch. Each line is equal to .0001". To show all the vernier markings I have "flattened" the sleeve of the micrometer. A real micrometer looks a little different and I encourage you to ask for a vernier micrometer so you can experiment with the real tool. In the figure shown below, I have the same reading as before, only now we are using the vernier micrometer. The above micrometer reads 250 on the Sleeve and 5 on the Thimble = 0.255. Now look for the vernier mark that lines up closest to any of the lines on the Thimble. In this case it is the vernier marked 8. The micrometer shown above reads 0.2558 It is easy to read what the micrometer is telling you. It is VERY difficult to accurately measure to .0001". This is due to the delicate feel that you must have to make this accurate of a measurement. Before you believe what your hands and micrometer are telling you, you must make several measurements to ensure you get consistent results. You wi...

In this post, you will learn the best method how to read a vernier caliper correctly. However, before we delve into explaining vernier calipers, we need to first understand what are calipers. Calipers are instruments we use to measure the The history of calipers is a very long one because scientists have shown traces of evidence as early as 202 BC to 220 AD in China. Additionally, the Chinese have used calipers to measure objects and for every caliper they produce, they make sure that the manufacturing date of that caliper is engraved on it. We have two types of calipers • Engineer’s calipers • Vernier caliper Engineer’s calipers: This type of caliper is of two types, we have External and Internal calipers. The external calipers are created with two jaws like that of a crab, it is meant to hook the external length (diameter) of an object in form of a circle like the diameter of a wood. The internal caliper measures the exact opposite of the external calipers. The hooks of internal calipers are projected outward. Also, Internal calipers can be used to measure the diameter of a pipe from the inside by clipping the two jaws of the caliper from the inside of the pipe. After measuring the diameter of the object, you tighten the knot of the two jaws on the caliper to make sure that your measurement does not change. A What is Vernier Caliper A vernier caliper is an instrument that helps users to find the exact measurement 0f an object. The history of the application of the vernie...

If you’re in need of a very precise length measurement, a Vernier caliper is going to be your best friend. This tool is used to measure internal and external dimensions, and it will give you much more specific measurements than a regular ruler. Learning to read a Vernier caliper is easy, and after a bit of practice, you’ll be using it like a pro. Keep reading to learn how to measure using this nifty tool and how to read the numbers you’re seeing. • Calibrate your caliper before using it by closing the jaws and lining up the 0 marks on the two scales, then place your object between the jaws. • Tighten the jaws by sliding the moving scale until the jaws are flush against your object. • Record the values being shown on the main scale and moving scale separately, then add them together to get your final measurement. Locate both sets of jaws and measuring scales on your caliper. A Vernier caliper has large jaws that are used for measuring an object’s external diameter, as well as smaller jaws that are used for measuring the internal diameter. There are also two scales. The Vernier scale is the sliding scale that opens and closes the jaws, while the main scale remains fixed in place. X Research source • Some models also have a depth gauge at the very end of the main scale. Read the scales on your Vernier caliper like you would read a ruler. A caliper usually has a main scale marked with numbered inches or centimeters, plus smaller divisions between them. The sliding (Ver...