Let’s look at a couple of things.
The first thing we notice, when examining a violin is the string diameter. Just like a piano, most Strings are the same dimension as the rest of the instrument. That has an obvious effect on a violinist’s ability to sustain, control the string, and tune.
Most of the more complex string instruments do actually have different strings. The reason for this is to minimize the risk that they could break as they age.
One of the most prominent types of instrument that does this is the violin. A violin is a highly functional instrument with various control mechanisms that allow the player to control the sound. A typical violin is a single-moulded sheet of wood, with a thin wood core and two thin metal strings that run to the edges of the instrument. There is also a large metal plate that makes up the body of the instrument.
Here’s a simple graph that gives an idea of how the string diameter in a violin varies as a function of tuning.
The graph shows the difference between a B flat and D flat (diameter of the main string). You get this for tuning of a Violin by:
The main string (the part that connects all the other strings) is 4 mm in diameter. For a standard tuning, that’s just about 1 mm.
The next graph shows the difference in diameter for each string of the same D tone colour. At the lowest string the difference is only about -2 mm, at the higher string it’s 0.5mm. That’s about 30x of the diameter for just the main string.
By the way, most of all Strings vary in diameter by about 2 micrometers. The same goes for the metal plates that make up the body of the violin.
In addition to the main string, the thin metal plates, called a tuners, will also vary in diameter from bow to bow, depending on how long the bow is and the type of string it is. The length of a bow determines the size and shape of these plates.
There’s also a special type of string called a truss rod that has holes all across it and runs the length of the string to prevent it from breaking. As the string lengthens the truss rod gets shorter. The point of this is that the string is designed so that it would be extremely difficult for it to break if it got hit with too much noise or vibration.