The voltage drop along the slide wire of potentiometer can be controlled by adjusting the value of working current. The process of adjusting the working current so as to match the voltage drop across the portion of sliding wire against standard reference source is known as standardisation
A variable resistive device
standardization is important because it helps to determine whether the machine is set and working properly or not.
transformer works induction principle
piezo electric principle
A working principle is a regulation or rule that is used so that work can be done. This is a general phrase that can be used in any circumstance from the working principle of a motor, to the working principle of a solar cells.
In case for micrometer, principle of pitch is used. Least count could be even micro meter But in vernier caliper, difference of main scale division and vernier scale division is the principle Least count could be 0.02 mm
A vernier calliper is used to measure the diameter of a wire so that you can work out its cross-sectional area using the formula for the area of a circle.
One of the main divisions are sub-divisions.
In order to perform a crankshaft run out, you need, A dial indicator, = vernier caliper = .
A dial caliper is typically used to measure the distance between two opposite sides of an object. While a regular caliper uses a vernier scale, which can be difficult to use, the dial caliper reads the final fraction of a millimeter or an inch on a simple dial.
today i observed errors between puppy dial reading & height gauge dial reading. this was 10μ to 20μ when we go to .1 mm
micrometer conforms to abbe's principle because the graduations are located along the same axis as the measurement while vernier caliper does not because the graduations are not on the same axis as the measurement.
standardization
Pierre Vernier
standardization
I guess it is found by vernier as it works on vernier theory -Manasa
Because they were invented by Pierre Vernier in 1631.