>>1559412yeah i've been looking into this, it looks to be difficult subject and some people have resorted to spending hundreds on a wheel fanatyk tensiometer or fabricating an elaborate calibration device but at the same time a lot of people say it's not super critical and that they can build decent wheels without using a tension meter at all
my proposed solution is to use a smartphone app to get the sound frequency of a plucked spoke to cross-reference the tension meter reading
especially on a radially laced wheel i think it will be reasonably accurate if you get the math right