Thermocouple is one of the most frequently used temperature detection elements in modern industrial field. From its practical application effect, the product has many advantages. And thermocouple also includes different categories. Next, we will introduce the main content of the product for you, hoping to help you better understand the product.
First, let's briefly introduce the main advantages of thermocouples. Its advantage is that the measurement accuracy is high. This is because in the actual detection, we can directly contact with the object to be tested, which can prevent the influence of other intermediate media. The second advantage is the wide measurement range. In general, the product can be continuously measured from - 50 ℃ to + 1600 ℃.
In some special cases, we can even measure - 269 ℃ with this product. The third advantage is that the structure of thermocouple is very simple and easy to use. In fact, the product is usually composed of two different kinds of metal wires, and is not limited by the size and the beginning. It has a protective sleeve outside, which is very convenient to use. In temperature measurement, we mainly weld two different materials of conductors or semiconductors 1 and 2 together to form a closed circuit.
In this way, once there is a certain temperature difference between the two, then there will be electromotive force between them. Therefore, a certain amount of current will be formed in the circuit, which is called thermoelectric effect. And our thermocouples use this effect to work.
From the current situation, we usually use two types of thermocouples, namely standard type and non-standard type. The so-called standard type, in fact, is the thermocouple produced according to the standard with a certain standard index table. This type of product can be selected with its matching display instrument.
On 2018-08-08 11:45:46
