Main types of thermal resistance?
發(fā)表日期：2016-01-09
Common type thermal resistance
From the thermal resistance temperature measurement principle knowable, the measured temperature is directly through the thermal resistance resistance to measure the changes. Therefore, the thermal resistance of the leads to wire and other wire resistance change will bring influence to the temperature measurement.
Armor thermal resistance
Armored thermal resistance is from the temperature sensing element (resistance), a lead wire, insulation materials, stainless steel casing and a solid body, its diameter is Phi 2, Phi 8mm, the minimum achievable Phi mm. Compared with the ordinary type thermal resistance, it has the following advantages:
1, small size, no internal air gap, thermal inertia, the measurement of small hysteresis;
2, good mechanical properties, vibration resistance, impact resistance;
3, can bend, easy to install;
4, long service life.
End face thermal resistance
The end surface thermal resistance temperature element is wound by a special treatment resistance wire, and is close to the end face of the thermometer. Compared with the general axial thermal resistance, can correctly and quickly reflect the actual temperature of surface to be measured, applicable to the temperature of the measurement of bearing and other parts of the face.
Explosion proof type thermal resistance
Explosion - proof type thermal resistance through the special structure of the junction box, the shell inside the explosive mixture of gas due to the impact of the spark or arc and other effects of the explosion occurred in the junction box, the production site will not lead to a super explosion. The explosion proof thermal resistance can be used to measure the temperature of the explosion hazardous area in the Bla--B3c level.
From the thermal resistance temperature measurement principle knowable, the measured temperature is directly through the thermal resistance resistance to measure the changes. Therefore, the thermal resistance of the leads to wire and other wire resistance change will bring influence to the temperature measurement.
Armor thermal resistance
Armored thermal resistance is from the temperature sensing element (resistance), a lead wire, insulation materials, stainless steel casing and a solid body, its diameter is Phi 2, Phi 8mm, the minimum achievable Phi mm. Compared with the ordinary type thermal resistance, it has the following advantages:
1, small size, no internal air gap, thermal inertia, the measurement of small hysteresis;
2, good mechanical properties, vibration resistance, impact resistance;
3, can bend, easy to install;
4, long service life.
End face thermal resistance
The end surface thermal resistance temperature element is wound by a special treatment resistance wire, and is close to the end face of the thermometer. Compared with the general axial thermal resistance, can correctly and quickly reflect the actual temperature of surface to be measured, applicable to the temperature of the measurement of bearing and other parts of the face.
Explosion proof type thermal resistance
Explosion - proof type thermal resistance through the special structure of the junction box, the shell inside the explosive mixture of gas due to the impact of the spark or arc and other effects of the explosion occurred in the junction box, the production site will not lead to a super explosion. The explosion proof thermal resistance can be used to measure the temperature of the explosion hazardous area in the Bla--B3c level.
