VIRTUAL VERNIER allows you to train in measuring with the Vernier or Caliper in inches and/or millimeters. This instrument is widely used in design processes, metrology, machining, welding, assembly, and other applications that require it. It is widely used in the Quality Control sections of production or service companies, where the adjustments and/or tolerances of the manufactured parts must be verified.

Today it is very important that Engineers, Technicians or Technologists in the technical and production areas knows how to measure.

The resolution of the measuring instrument in this application is 1/128 inches and 0.05 millimeters.

You can practice measuring on various tests and compare your results or achievements. You can also compete with your classmates or work group, since the application has a clock that measures the time of the correct measurement.

The name Vernier is in honor of the French mathematician Pierre Vernier (1580-1637) who adapted the idea of Pedro Nunes (Petrus Nonius 1492-1577) to linear measurement.

1) Type your name in the Name box.

2) Select the New Measurement Button.

3) Write in the yellow, blue and red boxes the correct measurement in inches (In the example image, the measurement is: 1 inch + 13/128 ).

4) Press the VERIFY  Button.

EXPLANATION:

An inch on the main rule is divided into 16 parts, that is, each interval of it is equal to 1/16 of an inch. In the upper rule vernier each subdivision equals 1/28 of an inch.

Inches and 16ths are measured from the zero line to the zero line of the vernier. Then, with much observation, determine the vernier line that exactly coincides with a line on the main ruler (the red line in the figure) and count the 128ths from the zero line. Then the number of inches + the number of 16ths + the number of 128th parts are added, this being the sum of fractions to finally obtain the measurement.

I present a simple method to memorize: