What is the precision of the bimetallic thermometer

Bimetallic thermometer specification is various, a variety of shapes, but they are wound into the principle of the thread form of thermal bimetal as thermal devices, and put it in a protective sleeve tube, one end is fixed, known as the fixed end, the other end of the connection on a thin shaft, called the free end. Spool at the free end is equipped with a pointer. When the temperature changes, the resulting thermal devices the free end of the rotation, drive the thin axis from the Angle of the pointer changes, corresponding temperature indicator on the dial. As a measuring instrument, measurement accuracy is very important, use our terms is accuracy, so the precision of the bimetallic thermometer is what? The correct answer is: the precision of the bimetallic thermometer is used to calculate the maximum absolute error of a parameter. The permissible error of the maximum absolute error = | | | = | X precision range, for example, the bimetallic thermometer measurement range of 0 ~ 300 ℃ accuracy is 0. Level 5, margin of error for 300 x0. = + / - 5% 1 c, the maximum absolute error is 1. 5C