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Kantaa ottamatta - ihan mielenkiintoista asiaa. Ja tätäkin saa vähätellä tarttumalla esim. mahdollisiin may ja possibly sanoihin ja poimimalla omaan agendaansa sopivia kohtia. Olihan Toledon tutkimuksessakin "näyttävät katoavan".
 

 
Analysis of ElectricGuitar Pickups
 
Fanuel T. Ban - Graduate Student, Penn State University / Sales Executive, LMS NorthAmerica. 15061 Springdale St, Suite 102. Huntington Beach, CA 92649
 
http://sem-proceedings.com/25i/sem. … nalysis-Electric-Guitar-Pickups.pdf
 
"In the Pickup Location section, it was stated that the boundary condition imposed on the motion of the strings of a guitar may be treated as fixed-fixed due to the relatively rigid mounting to the guitar body at the bridge and nut. Thus, very little energy is transferred to the body, and this means the harmonic content of the strings during vibration is not appreciably changed by the body of the guitar. This was a fair assumption for the derivation of the modes of the string in Equation 24. In reality, the guitar body and neck made of wood, and usually solid, are not infinitely stiff. Due to the guitar it self having its own vibration characteristics and possibly affecting the response of the string vibration, the sound that is output may vary depending on the shape, construction, type of materials used, and whether the body is solid, semi-hollow or hollow."
 
"The method by which the string is attached to the guitar and the tension are the first two physical parameters affecting tone. The more rigidly the string is attached to the guitar, the more coupled it is with the guitars structural response. The structural response of a particular guitar can be found from a number of analysis techniques such as modal analysis or laser vibrometry. Results of such studies have shown that there are many different natural frequencies and associated mode shapes for guitars of various shapes. It is not the intent of this chapter to examine these techniques in detail, but rather to analyze how the results may affect pickup response."
 
"It should be clear that due to the physical characteristics of the guitar within the frequency range of the notes played that the harmonic response of the
vibrating strings will be affected.
The wood that is utilized in the guitar receives the vibrations from the string by means of coupling through the bridge and nut. It vibrates in response and transmits vibrations back to the strings. When playing a guitar, one can physically feel the guitar body vibrations as different notes are played. Its important to note that the guitar will vibrate more at certain frequencies, which means that the natural resonances of the body are being excited and therefore feedback into the string vibration at various levels depending on the frequency being played. How the vibrations feed back and forth between the strings and the guitar body determines how the harmonic content changes during the envelope. Typically, thicker and denser wood resonate at higher frequencies. This can be heard by suspending a Les Paul and a Strat by the neck and tapping on the back of each. The Les Paul has a higher resonance frequency than the Strat, aside from the vibrating springs that connect the tremolo bridge."