Can you tell why is it important to have the vertical and ho

Can you tell why is it important to have the vertical and horizontal verniers in their calibrated postions when making actual voltage and time measurements?

Solution

When a measurement is made, the measured value (reading) will usually deviate somewhat from the true value of the measurand. This deviation is known as the error of the measurement. There are two main types of errors in experimental measurements - bias (or systematic) errors and precision (or random) errors. Bias errors are repeatable and generally result from restrictions in calibration process or problems associated with the instrument application for a particular situation.

Calibration is a comparison between a known measurement (the standard) and the measurement using your instrument.Calibration of vertical and horizontal verniers has two objectives. It checks the accuracy of the instrument and it determines the traceability of the measurement. In practice, calibration also includes repair of the device if it is out of calibration. A report is provided by the calibration expert, which shows the error in measurements with the measuring device before and after the calibration.

The accuracy of all measuring devices degrade over time. This is typically caused by normal wear and tear. However, changes in accuracy can also be caused by electric or mechanical shock or a hazardous manufacturing environment. Depending on the type of the instrument and the environment in which it is being used, it may degrade very quickly or over a long period of time. The bottom line is that, calibration improves the accuracy of the measuring device. Accurate measuring devices improve product quality.