How to ensure the sensitivity of anticorrosive bimetallic thermometer

Anti-corrosion type bimetallic thermometer is the use of two different metal expansion degree during temperature change, the principle of work is suitable for measuring temperature, low temperature gas, liquid and steam in the on-site detection of industrial instrumentation. Anti-corrosion type bimetallic thermometer mercury-free harm, easy reading, responsive, strong resistance to shock, can adapt to a variety of special environment, and anti-corrosion properties of metal instrument shell to endow them with more convenient for most corrosive medium, the temperature of the gas measurement.

the sensitivity of measurement equipment will be affected by many factors, anti-corrosion bimetallic thermometer is no exception. So, in practical application can take those measures in place to ensure that its sensitivity?

first, before the use of anti-corrosion bimetallic thermometer measurement environment should be considered various factors is within the scope of the provisions of the measuring instrument, lest by environmental factor influence the sensitivity.

second, industrial measurement for improving the temperature sensitivity is usually anticorrosive pieces bimetallic thermometer metal spiral coil shape. When multi-layer metal temperature change, the layers of metal expansion or contraction, makes the spiral coil rolled up or let go. As a result of the spiral coil end fixed and the other end connected to a free rotating pointer, therefore, when the bimetallic strip feel the temperature change, Pointers can be on a circular dividing scale to indicate the temperature.

can adjust the instrument structure makes the measuring instrument is more suitable for the actual working condition requirements, besides should also pay attention to the measurement method, such as protecting tube immersed in the measured medium length should be greater than the length of the thermal components, to ensure the accuracy of measurement.