The thermocouples of resistance with delivery across Russia

To measure temperature was developed by a specialized device - the thermocouple. The principle of operation of the device based on the electrical resistance of alloys of different metals or metals in pure form.

Main parts of the thermocouples are referred to as semiconductors. Professionals give the items a second name - thermistors. When considering traditional thermocouple can be detected by only one semiconductor, which is made of durable metal wire. In some situations, the PTC thermistors are constructed from a special, durable film.

The most popular at the moment are considered platinum resistance thermometers. A similar distribution is due to the great dependence of the resistivity on the temperature indicator. Platinum material has a high resistance to oxidation processes. Platinum thermocouples are able to show good performance. New models are manufactured from refined platinum high quality.

In addition to platinum the modern market offers a Nickel, and copper device to which the rules of GOST. This measurement system is suitable for determining the temperature range and accuracy classes.

Two-wire device

There is a two wire thermocouple, characterized by a simple circuit device. The upper part has delicate detail with a thermistor, which is connected to the fitting. The lower part includes the cable and clamps. Subject to the operation of the device under conditions of negative temperatures can be observed minimum error of approximately 0.3 degrees.

Three-wire thermocouple

Such devices are suitable for use in a liquid medium. The lowest possible temperature indicator for proper operation of the device is -30 degrees.

There are also four-wire device designed to determine the temperature of the liquid medium.

The thermocouples are of decent quality you can buy in the online store termopara.org. As an experienced vendor, Thermocouple" is ready to offer a sufficient range of products.