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nature : the thermocouple thermoelectric effects of a thermometer. The closing line of thermocouple gauges access becomes thermocouple thermometers. Measurement, a thermocouple contact on the question of measuring the medium, and the other contact in general to maintain a certain temperature. Closed line of the thermoelectric power can be measured millivolt meter and potentiometer such determination. Many types. - 1129 manufacturing thermocouple materials can be divided into three categories : (a) precious metal thermocouple, platinum and rhodium alloy-platinum thermocouples; (2) ordinary metal thermocouple, such as copper-nickel thermocouple; (3) metal and non-metallic thermocouples, such as tungsten-graphite and diamonds - Thermocouple as graphite. Temperature measurement range is -100-1900 ° C Common thermoelectric copper-nickel (up to 600 ° C temperature measurement), iron-nickel (600 ° C), chromium nickel (350 ° C) and the platinum and rhodium alloy-platinum (1300 ° C). In addition, diamond-graphite thermocouple temperature measurement up to 1900 ° C Accurate and reliable, available an instrument measuring the temperature of the points, to carry out the distance measurement and automatic record.
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