Vernier caliper
Vernier Caliper
A Vernier caliper (pronounced: vur-neer kal-uh-per) is a precision instrument used for measuring internal and external distances accurately. The term "Vernier" in Vernier caliper is derived from the name of its inventor, Pierre Vernier, a French scientist.
Etymology
The term "Vernier" is derived from the French scientist Pierre Vernier who invented this precision instrument in 1631. The term "caliper" originates from the Latin word "caliper" which means "to measure".
Description
A Vernier caliper consists of a main scale and a sliding secondary scale known as the Vernier scale. The Vernier scale provides additional precision to measurements. It has jaws that can be moved to accommodate the object being measured. The main scale is graduated in millimeters or inches, while the Vernier scale provides readings to the nearest 0.02mm or 0.001 inch.
Usage
Vernier calipers are used in a wide range of fields such as Mechanical Engineering, Civil Engineering, Medical Science, and Forensic Science. They are used to measure the dimensions of an object with high accuracy and precision.
Related Terms
- Micrometer: Another precision measuring instrument, similar to a Vernier caliper but capable of even more precise measurements.
- Dial Caliper: A type of caliper that uses a dial to display the measurement.
- Digital Caliper: A modern type of caliper that displays the measurement digitally.
See Also
External links
- Medical encyclopedia article on Vernier caliper
- Wikipedia's article - Vernier caliper
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