Recent content by johnybe

  1. J

    Graduate Uncertainties associated with the use of opacity meters (smoke meters)

    Well, I need to calculate uncertainty by using statistical methods, which I generally have. But I need influencing factors which are contributing to mentioned uncertainty, for instrument called opacity meter (smoke meter). That instrument measures, if smoke at car exhaust (for diesel cars...
  2. J

    Graduate Uncertainties associated with the use of opacity meters (smoke meters)

    Please, I need practical instruction/calculation to find the uncertainty associated with the use of opacity meters (smoke meters). I cannot even start to calculate; I cannot find anything on this topic. Thx a lot.