How to ensure the stability of the thermocouple

Thermocouple in the process of measurement, is already showing high accuracy, but in the practical work, we also need to increase its stability as soon as possible. Nowadays, thermocouple has become a very wide range of temperature measuring element, and it also has a good economy. However, in the process of measurement, we have to consider the problem of the stability of the below to see details.

in fact, if its stability can reasonable control, so there is no doubt that you will be able to greatly improve its performance. In practical use, however, that because there is a certain error, such as temperature difference, differences in climate, etc. , will lead to the use of the thermocouple temperature there will be some changes, and often with the diameter of the different change. In some cases, even if the diameter is consistent, if different structures, also there is a big difference.

as a result, in order to minimize the impact, we in the choice of the thermocouple, you need to think ahead to the all aspects of the problem. Here to recommend, must according to the actual usage, the conditions of the main consideration are: common temperature and the temperature; Using atmosphere such as REDOX; Vibration resistance, etc.

of course, for different types of thermocouple, influenced by the factors of it can also be different. One of its structure and the material also can produce certain effect. So, we need to be familiar with the physical and chemical properties of various kinds of protection tube material. Commonly used in powder metallurgy industry, for example, molybdenum tube as a protection tube, so under the condition of high temperature can still keep good use effect.

all in all, if we need to ensure the steady performance of thermocouple, so we have to start from the above several aspects to consider, only do this, can improve the stability of the thermocouple.