Wear resistance of the thermocouple temperature measuring principle

Thermocouple is to use widely in people's career because of thermocouple influence with the upper hand, resolution by its task reason eve of the family are all know, but as a thermocouple in the ranks of new product: wear-resistant thermocouple temperature measuring point and the rest of the product what is the difference? Taizhou shengda instrument under the small make up to introduce.

wear-resistant thermocouple has the upper hand of individual thermocouple: construct a brief, high measurement accuracy, bare wire minimum heat capacity, data exchanging sex good, the output of a standard lights may be far intervals. Facilitate testing to gain control, etc.

wear-resistant thermocouple applications is the thermoelectric effect to the task. Put two differentia other conductors or semiconductor cohesion into a closed loop, if they are the differences between the two contact resolution in temperature, the potential will occur in the circuit, this picture is called thermoelectric effect. Or the seebeck effect, 塞贝克) 。 The electric potential is known as thermoelectric potential, as the EAB ( T,) 。 Orifice meter thermocouple is the sensitive element of thermocouple thermometer, temperature measurement based on thermoelectric effect is the basic reason of it. The two differentia other conductor ( Or a semiconductor) A and B cohesion into A closed loop, when the temperature difference, the two contacts as T> T。 The loop will occur thermoelectric potential EAs ( T, T0) 。 Conductor is called thermal electrodes, in this, a thermocouple of the anode; ； Another negative performance. The combination of the two hot electrode is called the thermocouple. Contact in two contacts, are the two electrodes will be welded together, when the temperature will it have been feeling is in the side of the tool side falling in degrees, so called the measurement end, hot end or task end; Contact in case, the request temperature constant, so called reference end, the cold end, or free end.

wear-resistant thermocouple is through the process of lateral hottest potential to realize the temperature measurement. The thermoelectric potential consists of two departments: the war potential ( Also called pat post potential) Electric potential and temperature difference ( Also known as Thomson potential)

two war potential of the conductor introduction:

war potential is based on the post (Pal 珀尔帖效应) Effect occurs, i. e. because two differentia at war with other conductors, free electrons by the density of the conductor to the density of the eve of the small scattered, until reach the static equilibrium, constitute the thermoelectric potential. Free electrons scattered speed and ease of the electron density and temperature is proportional to the.