What are the functions and characteristics of thermoelectric coupling gold wire?
Source：本站 Time：2021/5/8 8:47:07 frequency：
Thermoelectric coupling gold wire is a common temperature measuring component in temperature measuring instruments. It can directly measure the temperature, convert the temperature signal into thermoelectric EMF signal, and convert it into the temperature of the measured material according to the electrical instrument (secondary instrument).
The appearance designs of various thermoelectric coupling gold wires are often very different due to needs, but their basic structures are basically the same. They are generally composed of key parts such as thermoelectric grade, insulating layer, protective tube and junction box. They are generally used in supporting facilities of display instrument, recording instrument and electronic controller.
Platinum platinum rhodium thermocouple (s type) graduation lb-3 industrial thermocouple wire: Φ 0.5mm, finer for laboratory use. Positive electrode: platinum rhodium alloy wire, smelted with 90% platinum and 10% rhodium (weight ratio). Negative electrode: platinum wire. Measuring temperature: long term: 1300 ℃, short term: 1600 ℃.
Thermoelectric coupling gold wire characteristics:
(1) Thermoelectric coupling gold wire has stable raw material performance and high measurement accuracy; It can be made into standard thermocouple or standard thermocouple. Use of thermoelectric coupling gold wire: laboratory or calibration of other thermocouples.
(2) The measurement temperature is high, which is generally used to measure the high temperature above 1000 ℃.
(3) . it is easy to be corroded in high-temperature reducing gas (such as CO, H2, etc. in steam), so it is necessary to use protective casing.
(4) The raw materials are precious metals with high cost.
(5) The thermoelectric potential is poor.
The appearance designs of various thermoelectric coupling gold wires are often very different due to needs, but their basic structures are basically the same. They are generally composed of key parts such as thermoelectric grade, insulating layer, protective tube and junction box. They are generally used in supporting facilities of display instrument, recording instrument and electronic controller.
Platinum platinum rhodium thermocouple (s type) graduation lb-3 industrial thermocouple wire: Φ 0.5mm, finer for laboratory use. Positive electrode: platinum rhodium alloy wire, smelted with 90% platinum and 10% rhodium (weight ratio). Negative electrode: platinum wire. Measuring temperature: long term: 1300 ℃, short term: 1600 ℃.
Thermoelectric coupling gold wire characteristics:
(1) Thermoelectric coupling gold wire has stable raw material performance and high measurement accuracy; It can be made into standard thermocouple or standard thermocouple. Use of thermoelectric coupling gold wire: laboratory or calibration of other thermocouples.
(2) The measurement temperature is high, which is generally used to measure the high temperature above 1000 ℃.
(3) . it is easy to be corroded in high-temperature reducing gas (such as CO, H2, etc. in steam), so it is necessary to use protective casing.
(4) The raw materials are precious metals with high cost.
(5) The thermoelectric potential is poor.
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