At present, the thermal resistance of the leads in three main ways: wire: at both ends of the thermal resistance of the connecting leads the way to a wire resistance signal is called second-tier system: This method is very simple wire armored heat resistance price, but because of the connecting wire there must lead resistance r, r factors and wire size and length of the relevant material armored main thermal resistance, so this applies only to lead the way lower precision measurement occasions thermal resistance with three-wire connection. Three-wire connection to eliminate measurement errors caused by lead resistance. This is because the measurement of the thermal resistance of the circuit is generally unbalanced bridge. Thermal resistance as a bridge arm resistance bridge, the connecting wires (from the thermal resistance to the control room) has become part of the bridge arm resistance, this part of the resistance is unknown and with changes in ambient temperature armored thermal resistance, resulting in a measurement error. Three-wire RTD armored offer, will lead one to the power side of the bridge, and the remaining two were connected to the thermal resistance of the bridge where the arm and the adjacent bridge arm, thus eliminating wire line resistance brought measurement error. Armored thermal resistance Pictures | armored thermal resistance | armored forces since the instrument measuring the thermal resistance provided by the Shanghai Automation Instrumentation Co. measured. Shanghai Automation Instrumentation Co., force measurement (www.licesh.com) strong, credible, in Shanghai Zhabei District, flow meters and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the force measured since the instrument into the brilliant and you work for a better future!